CN112730083A - Simulation system and experimental method for regulating duct piece dislocation by using tenon and mortise - Google Patents
Simulation system and experimental method for regulating duct piece dislocation by using tenon and mortise Download PDFInfo
- Publication number
- CN112730083A CN112730083A CN202011577342.1A CN202011577342A CN112730083A CN 112730083 A CN112730083 A CN 112730083A CN 202011577342 A CN202011577342 A CN 202011577342A CN 112730083 A CN112730083 A CN 112730083A
- Authority
- CN
- China
- Prior art keywords
- model
- tenon
- segment
- shield tunnel
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004088 simulation Methods 0.000 title claims abstract description 83
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 30
- 238000002474 experimental method Methods 0.000 title claims abstract description 9
- 238000006073 displacement reaction Methods 0.000 claims abstract description 40
- 238000012544 monitoring process Methods 0.000 claims abstract description 16
- 238000003825 pressing Methods 0.000 claims description 124
- 230000008093 supporting effect Effects 0.000 claims description 53
- 238000007664 blowing Methods 0.000 claims description 44
- 238000002347 injection Methods 0.000 claims description 40
- 239000007924 injection Substances 0.000 claims description 40
- 238000009423 ventilation Methods 0.000 claims description 30
- 230000001276 controlling effect Effects 0.000 abstract description 20
- 230000007246 mechanism Effects 0.000 abstract description 17
- 238000013467 fragmentation Methods 0.000 abstract description 4
- 238000006062 fragmentation reaction Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 34
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 11
- 238000004458 analytical method Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 10
- 230000008859 change Effects 0.000 description 9
- 239000002689 soil Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 238000013480 data collection Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008844 regulatory mechanism Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0044—Pneumatic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0075—Strain-stress relations or elastic constants
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0682—Spatial dimension, e.g. length, area, angle
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Lining And Supports For Tunnels (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention discloses a simulation system for regulating duct piece dislocation by using a tenon and tenon, which comprises a model unit, a duct piece dislocation simulation unit, a displacement monitoring unit and a tenon and tenon regulation unit; the model unit comprises a shield tunnel model formed by splicing a plurality of segment models; the segment staggering simulation unit comprises a staggering simulation device; the displacement monitoring unit comprises a plurality of displacement data acquisition devices arranged on the shield tunnel model; compared with the prior art, the simulation system provided by the invention can simulate a mechanism for regulating and controlling duct piece dislocation by using the tenon, thereby providing reference and effective suggestions for regulating and controlling duct piece dislocation by using the tenon, and effectively avoiding the problems of duct piece fragmentation and leakage caused by duct piece dislocation. In addition, the invention also provides an experimental method of the simulation system for regulating duct piece dislocation by using the tenon and the mortise.
Description
Technical Field
The invention relates to the field of tunnel construction, in particular to a simulation system and an experimental method for regulating duct piece dislocation by using a tenon and a mortise.
Background
With the advance of urbanization in China and the rapid development of subway construction, shield tunnels are widely applied to urban subways. The segment structure is an important structure of the shield tunnel, but the shield segment inevitably generates the problem of slab staggering due to various reasons such as improper control of the excess quantity on the segment, improper control of stroke difference of a shield jack and the like. The duct piece staggering is a phenomenon that after the duct pieces are assembled, inner arc surfaces of adjacent duct pieces of the same ring or adjacent ring duct pieces are uneven, the inner arc surfaces are called annular staggering, the inner arc surfaces are called longitudinal staggering, and the duct piece longitudinal staggering accounts for about 90% of all duct piece staggering in actual engineering. The section of jurisdiction mistake platform very easily leads to the section of jurisdiction to take place cracked, the seepage problem, and the section of jurisdiction is cracked not only can reduce the waterproof performance in tunnel, and what more can reduce the atress performance of section of jurisdiction structure, influences the engineering quality, brings very big economy, safety risk for the construction operation of subway. Therefore, the problem of longitudinal dislocation of the segments in the shield tunnel is a problem which must be properly handled. The most effective method for solving the problem of longitudinal slab staggering of the shield segment is to increase the shear strength between the rings, and the shear strength between the rings can be effectively increased by arranging the tenon and the mortise between the segment rings. If can master the regulation and control mechanism who obtains the vertical wrong platform of tenon-tenon to segment, just can effectively utilize the tenon-tenon structure to avoid the cracked, seepage emergence of the problem of section of jurisdiction that leads to because of the vertical wrong platform of section of jurisdiction, consequently, how to obtain the regulation and control mechanism of vertical wrong platform of tenon-tenon to segment, provide reliable technical proposal and data support for having tenon shield section of jurisdiction concatenation construction, become the important task that needs to solve in urgent need among the tenon section of jurisdiction work progress.
In the prior art, the duct piece dislocation is eliminated by adopting a wall back high-pressure grouting mode according to actual conditions in most projects during shield construction, but the regulation and control effect of the wall back high-pressure grouting on the longitudinal dislocation of the duct piece is very weak, the economic cost is high, and the quality after grouting is difficult to guarantee. In addition, partial engineering adopts the finite element to establish the model and analyzes, but this kind of finite element analysis method is theoretical too strong, can not replace the shield segment dislocation condition of reality, often through artificially introducing technical parameter, and reference meaning and using value are little, consequently, need a system in laboratory to simulate the process that the dislocation took place for the pipe piece in the actual engineering and the process that the dislocation of unsmooth tenon regulation and control pipe piece was failed.
Disclosure of Invention
The invention aims to overcome the defects that the prior art cannot obtain a regulation mechanism of a tenon-tenon structure for longitudinal slab staggering of shield segments in the shield tunnel segment splicing construction process in advance, cannot provide reference and effective suggestions for longitudinal slab staggering of the tenon-tenon regulation shield segments, and further causes difficulty in preventing segment cracking, leakage and the like caused by slab staggering, and provides a simulation system for regulating the slab staggering by using the tenons, which comprises a model unit, a segment staggering simulation unit, a displacement monitoring unit and a tenon-tenon regulation unit, simulates the splicing construction condition of the shield tunnel by using the model unit, simulates the segment staggering state of the shield tunnel by using the segment staggering simulation unit, realizes regulation and control of longitudinal slab staggering of segments in the shield tunnel by using the tenon-tenon regulation unit, and measures longitudinal slab staggering before and after regulation by using the displacement monitoring system, the regulation and control mechanism of the longitudinal dislocation of the segment by the tenon and the mortise is revealed through the analysis of the measured data, so that reference and effective suggestions are provided for regulating and controlling the dislocation of the segment by the tenon and the mortise, and the problems of segment fragmentation and leakage caused by the longitudinal dislocation of the segment are effectively avoided. The invention also provides an experimental method of the simulation system for regulating duct piece dislocation by using the tenon and the mortise.
The purpose of the invention is mainly realized by the following technical scheme:
use simulation system of tenon regulation and control section of jurisdiction wrong platform, including model unit, section of jurisdiction wrong platform simulation unit, displacement monitoring unit and tenon regulation and control unit, wherein: the model unit comprises a shield tunnel model formed by splicing a plurality of segment models; the segment dislocation simulation unit comprises a dislocation simulation device, the dislocation simulation device comprises a blowing device, and when the segment dislocation simulation unit is used, the blowing device is controlled to blow air to the shield tunnel model so as to simulate a segment dislocation state; the displacement monitoring unit comprises a plurality of displacement data acquisition devices arranged on the shield tunnel model; the tenon regulation and control unit includes the tenon, the tenon groove, push rod and connecting hole, and it does not do not be equipped with tenon and tenon groove to divide equally at the both ends of every section of jurisdiction model, has all seted up the connecting hole in every section of jurisdiction model, and the connecting hole both ends open end is seted up respectively on tenon bottom and tenon groove bottom surface, and push rod one end slides and runs through the tenon in proper order, the connecting hole makes its tip arrange the tenon inslot in, and the tenon setting is located the tip of tenon groove at the push rod, and the tenon between two adjacent section of jurisdiction models match each other.
Use simulation system of vertical wrong platform of segment of tongue and groove regulation and control, this simulation system includes the model unit, segment wrong platform simulation unit, displacement monitoring unit and tongue and groove regulation and control unit, simulate out the shield tunnel concatenation construction circumstances through the model unit, segment wrong platform state through segment wrong platform simulation unit simulation shield tunnel, realize the regulation and control to the vertical wrong platform of segment in the shield tunnel through tongue and groove regulation and control unit, and rely on displacement monitoring system to measure the vertical wrong platform volume before and after the regulation and control, reveal the regulation and control mechanism of tongue and groove to the vertical wrong platform of segment through the analysis to measured data, thereby provide reference and effective suggestion for tongue and groove regulation and control segment wrong platform, effectively avoid the segment that leads to because of the vertical wrong platform of segment cracked, the emergence of seepage problem. Set up tenon and tenon groove at section of jurisdiction model both ends among this technical scheme, the tenon is located the tenon groove and can follow the tenon groove slides for the tongue and groove between section of jurisdiction ring in the simulation actual construction regulates and control the vertical slab staggering of section of jurisdiction, the connecting hole is located section of jurisdiction model tenon and tenon groove annular bottom surface in pairs, the push rod passes the connecting hole, the push rod front end is free, and the rear end is connected with the tenon. The concave-convex tenon structure of the technical scheme can increase the shearing strength between rings, so that the segment dislocation quantity is eliminated, and the longitudinal dislocation of the shield segment is regulated and controlled. In addition, the length of the tenon can be selected according to actual conditions, and when the tenon adjusting device is used, the tenons with different lengths can be provided by adjusting the propelling amount of the starting push rod, so that the adjusting and controlling effects of the tenons with different lengths on the longitudinal dislocation phenomenon of the duct piece are obtained, the adjusting and controlling mechanism of the tenon on the longitudinal dislocation of the duct piece under various conditions can be analyzed, and more comprehensive and wide data reference can be obtained; therefore, the longitudinal dislocation condition of the regulating and controlling duct piece with the tenon and the mortise with different lengths can be simulated, the flexibility is high, and the application range is wide.
Furthermore, the model unit also comprises a model base, a model frame, wind shields and lifting ropes, wherein the model base is a rectangular flat plate, the model frame is a cuboid structure welded above the model base, the wind shields are fixed on four side surfaces of the model frame, two ends of each lifting rope are respectively connected with the shield tunnel model and the top of the model frame, two fixing frames are symmetrically arranged in the model frame and used for supporting the bottom of the shield tunnel model; the duct piece staggering simulation unit further comprises a ventilation pipe and an air blowing device, the ventilation pipe is installed below the shield tunnel model, one end of the ventilation pipe is communicated with an air outlet of the air blowing device, the other end of the ventilation pipe is opened towards the bottom of the shield tunnel model, and the ventilation pipe is used for blowing air to the shield tunnel model through an opening end located below the shield tunnel model.
This technical scheme is fixed in the model base with the model frame, erect on the mount after assembling the section of jurisdiction model, simulate the situation that actual shield tunnel section of jurisdiction was assembled, every section of jurisdiction model all hoists in two long limits in model frame top through the lifting rope, arrange the ventilation pipe in section of jurisdiction model below, open the air-blower behind the installation deep bead and blow to section of jurisdiction model bottom at the uniform velocity through the ventilation pipe, the section of jurisdiction model is lifted under the wind-force effect, thereby simulate the condition that produces the section of jurisdiction slab staggering in the shield section of jurisdiction work progress, later through the shear strength of tongue and groove structure increase interloop, thereby eliminate section of jurisdiction slab staggering volume, realize regulating and controlling shield section of jurisdiction vertical staggering, this scheme tongue and groove length can be selected according to actual conditions, thereby realize simulating the vertical wrong platform condition of different length tongue and groove regulation section of jurisdiction.
Further, the segment staggering simulation unit further comprises a frequency converter used for adjusting the air speed of the air blowing device, the ventilation pipe comprises a main air pipe and a plurality of auxiliary air pipes, the lower ends of the auxiliary air pipes are communicated with the main air pipe, one end of the main air pipe is communicated with an air outlet of the air blowing device, the upper ends of the auxiliary air pipes are open and extend upwards, and a control valve used for adjusting the air output is further arranged at the upper ends of the auxiliary air pipes.
This technical scheme sets up the auxiliary air duct of a plurality of lower extremes and main air duct intercommunication, utilizes a plurality of auxiliary air ducts to blow to different section of jurisdiction models among the shield tunnel model, simulates different effects of blowing, and in addition, control flap also can select whole or part to open auxiliary air duct, makes the effect of blowing of ventilation pipe more various, and the flexibility is stronger, and application scope is extensive. When the phenomenon of wrong platform of duct piece of different engineering is simulated, the control flap through adjusting the converter, corresponding section of jurisdiction provides different wind speed, air output to provide different wind pressure, simulate out comparatively real section of jurisdiction wrong platform phenomenon.
Furthermore, the model unit also comprises an annular frame sleeved outside the shield tunnel model, a plurality of rows of open hole groups are arranged on the side wall of the annular frame along the axial direction of the annular frame, each row of open hole group corresponds to one segment model, and each row of open hole group comprises a plurality of first through holes which are uniformly distributed along the circumferential direction of the annular frame; a plurality of elastic units are arranged between the inner side wall of the annular frame and the outer side wall of the shield tunnel model; the duct piece staggering simulation unit further comprises a plurality of air injection units which are distributed in each first through hole one by one.
In the actual tunnel construction, the pressure applied to the shield tunnel is required to be at a plurality of angles along the circumferential direction of the shield tunnel, so that the annular frame is arranged outside the shield tunnel model in the technical scheme, and the shield tunnel model is circumferentially covered by the annular frame. In addition, a plurality of jet-propelled units that circumference set up can simulate the pressure of a plurality of positions that shield tunnel model circumference received, and set up the elastic unit on the annular frame and simulate shield tunnel model and receive external pressure when, the displacement that its circumference received power and produce changes, it is visible to pass through the setting of elastic unit and jet-propelled unit on the annular frame, can simulate the power and the corresponding change that shield tunnel circumference received in the actual tunnel construction, it is more referential meaning to tunnel construction, effectively avoid because of the section of jurisdiction that the vertical wrong platform of section of jurisdiction leads to is cracked, the emergence of seepage problem.
Furthermore, the elastic unit comprises a first pressing plate and a rebound piece arranged between the first pressing plate and the inner side wall of the annular frame, the rebound piece comprises a first fixing plate, a second fixing plate, a pressing rod, a first spring, a second spring, a third spring, a first pressing sheet, a second pressing sheet and a connecting rod, the first fixing plate and the second fixing plate are fixed on the annular frame and are positioned between the annular frame and the shield tunnel model, the second fixing plate is positioned between the first fixing plate and the annular frame, one end of the pressing rod is arranged on the surface of the first pressing plate close to the inner side wall of the annular frame, the other end of the pressing rod movably penetrates through the first fixing plate and extends towards the inner side wall of the annular frame, the first pressing sheet is arranged at the free end part of the pressing rod, the second pressing sheet is sleeved on the side wall of the pressing rod between the first fixing plate and the first pressing sheet, and the pressing rod movably penetrates through the second pressing sheet, the first spring sleeve is arranged on the pressing rod, two ends of the first spring are respectively arranged on the first pressing sheet and the second pressing sheet, the second spring is arranged between the first pressing sheet and the inner side wall of the annular frame, the second spring penetrates through the second fixing plate in a movable mode, a third spring is arranged between the first fixing plate and the second fixing plate and sleeved outside the first spring and the second spring, a third pressing sheet used for compressing the third spring is arranged between the first pressing sheet and the second pressing sheet, the pressing rod penetrates through the third pressing sheet in a movable mode, and the connecting rod is connected with the second pressing sheet and the third pressing sheet.
The inventor discovers after studying the tunnel construction process that the tunnel construction is carried out in a perforation, the density of the segment dislocation and the shield tunnel and the outer soil layer are greatly related in the actual construction, in the gradual change process of the segment dislocation, the soil layer density is increased along with the extrusion of the deformed segment, the interaction force of the deformed segment and the soil layer is gradually increased, and therefore, in the simulation process of the shield tunnel dislocation, the realization is also very important in the simulation of the change process. For this reason, this technical scheme has set up the piece that kick-backs that has three spring, when the piece that kick-backs receives the extrusion, three spring can produce the deformation of different states, during the use, first pressing platen pushes down and drives the depression bar and push down, along with the depression bar pushes down, first spring is stretched, the second spring is compressed, the third spring makes its upper segment tensile because third preforming downstream, the hypomere compression, the deformation of three spring all can produce the resistance to the pushing down of depression bar, and the resistance increases along with the stroke that the depression bar pushed down more. When receiving shield tunnel pressure, because the power that the shield tunnel is bulky produces is also very big, but in actual work progress, the change that the soil layer produced is the change that lasts slightly, if adopt single elastic construction to set up and hardly satisfy this kind of application scenario, and elastic construction damages easily and can not multiplex, consequently this technical scheme has set up multiple nested resilience structure, because multiple elastic construction sets up when receiving big power, the deformation ability control that produces is in less within range, and deformation and reset process are more stable, can satisfy long-term experimental demand, can simulate the power that shield tunnel circumference received in the actual tunnel construction and corresponding change, more have the referential meaning to tunnel construction, effectively avoid the section of jurisdiction fragmentation that leads to because of the vertical wrong platform of section of jurisdiction, the emergence of seepage problem.
It should be noted that, in this technical scheme, the first fixing plate and the second fixing plate may be fixedly connected with the annular frame through a connecting plate or a connecting rod, so as to achieve a fixed state of the first fixing plate and the second fixing plate.
Furthermore, the elastic unit also comprises a second pressing plate, a first supporting piece, a second supporting piece and a rotating supporting unit, the second pressing plate is arranged between the first pressing plate and the outer side wall of the shield tunnel model, the first supporting piece is arranged between the first pressing plate and the second pressing plate, the first supporting piece comprises an air spring, two first supporting rods which are symmetrically arranged and two telescopic rods which are symmetrically arranged, each telescopic rod comprises an inner rod and an outer sleeve which is sleeved outside the inner rod, the outer side wall of the inner rod and the inner side wall of the outer sleeve are provided with mutually matched threads, the inner rods of the two telescopic rods are respectively hinged with the two first supporting rods one by one, the end part of the outer sleeve, far away from the inner rod, is rotatably connected with a connecting block, the connecting block is hinged to the surface of the second pressing plate, close to the first pressing plate, and two ends of the air spring are respectively arranged at the hinged parts of the two first supporting rods and the two telescopic rods; a second through hole is formed in the first pressing plate along the radial direction of the shield tunnel model, a bearing concentric with the second through hole is arranged in the second through hole, the outer ring of the bearing is fixed on the inner wall of the second through hole, a threaded hole concentric with the second through hole and an annular sliding groove are formed in the upper surface of the inner ring of the bearing, and a third through hole is formed in the bottom surface of one end of the annular sliding groove; a screw rod matched with the threaded hole is arranged on one side, close to the first pressing plate, of the second pressing plate; the second support piece comprises a second support rod, one end of the second support rod is arranged on the inner side wall of the annular frame, the other end of the second support rod extends towards the first pressing plate, the end portion, close to the first pressing plate, of the second support rod is in contact with the first pressing plate, and the end portion of the screw rod enters the threaded hole and drives the threaded hole to rotate when the second support rod is used until the end portion of the second support rod enters the third through hole.
The inventor also finds that in the actual construction process, the tiny gap between the shield tunnel and the soil layer caused by construction is also an important reason for generating segment dislocation, and how to simulate the segment dislocation caused by the gap is also an important problem. According to the technical scheme, the second pressing plate, the first supporting piece, the second supporting piece and the rotating supporting unit are arranged, the second through hole and the bearing matched with the second through hole are arranged on the first pressing plate, the threaded hole and the annular sliding groove are arranged on the bearing, when a screw rod on the second pressing plate moves down along with the compression deformation of the pressing spring, the second supporting rod is located in the annular sliding groove and is not contacted with the third through hole at the beginning, and the second supporting rod plays a role of supporting the first pressing plate, so that the pressing spring is compressed and deformed at the moment, and the rebound piece cannot be extruded under the support of the ejector rod; when the pressing spring continues to be compressed and deformed, the pressing spring enters the threaded hole along with the deformation of the first supporting piece, the bearing inner ring rotates due to the threaded fit of the screw rod and the threaded hole, the annular sliding groove in the bearing inner ring is driven to rotate, the end part of the second supporting rod slides in the annular sliding groove until the ejector rod enters the third through hole, the second supporting rod does not support the supporting plate any more, and the rebound piece is deformed under pressure. According to the technical scheme, the arrangement of the bearing, the second support rod, the lead screw and other structures is adopted, and the first support piece is utilized to generate smaller resilience force to simulate the condition that a small gap between the shield tunnel and a soil layer causes the segment to be staggered; when the shield tunnel is continuously staggered, the resilience piece provides a further supporting effect; therefore, the elastic piece has two-stage elastic deformation through the arrangement of the structures, and different duct piece staggering effects can be simulated according to different requirements. In addition, the first support piece that this technical scheme set up, except utilizing air spring to provide the resilience force, still set up the telescopic link as threaded connection's interior pole and outer sleeve, because outer sleeve one end is passed through the connecting block and is rotated the connection on the second is pressed the pressing plate, the other end passes through the screw thread and is connected with interior pole, it can rotate simultaneously for pressing plate and interior pole to see the outer sleeve, consequently, can be through rotating outer sleeve manual regulation telescopic link length, in order to simulate the not clearance of equidimension between shield tunnel and the soil layer, more reference meaning to tunnel construction, effectively avoid because of the section of jurisdiction that the vertical wrong platform of section of jurisdiction leads to is.
It should be noted that the third through hole is a circular through hole, and the pressure lever is not in contact with the bearing.
Further, the segment staggering simulation unit also comprises an air outlet pipe, the air outlet pipe comprises a main air outlet pipe and a plurality of branch air pipes communicated with the main air pipe, the main air outlet pipe is communicated with the air blowing device, and air outlets of the branch air pipes are communicated with the air injection units one by one; the jet-propelled unit includes along jet-propelled pipe and the rotary drum of first through-hole axial setting, and the axis of jet-propelled pipe and rotary drum is not on same straight line, jet-propelled pipe both ends opening, and the open end that the shield tunnel model was kept away from to the jet-propelled pipe is the air inlet, the open end that the jet-propelled pipe is close to the shield tunnel model is the gas outlet, the rotary drum cover is established in the jet-propelled pipe outside, it has first through-hole to keep away from the tip of shield tunnel model at the rotary drum, the jet-propelled pipe activity runs through first through-hole and extends to the direction of keeping away from the shield tunnel model, the air outlet intercommunication of jet-propelled pipe air inlet and expenditure tuber pipe, the tip that is close to the shield tunnel model at the rotary drum is equipped with the baffle, baffle and the gas outlet contact of jet-propelled pipe under the initial.
This technical scheme sets up the expenditure tuber pipe and the jet-propelled unit of a plurality of matches one by one, all be equipped with jet-propelled pipe and rotary drum structure in every jet-propelled unit, during the use, through rotating the rotary drum, utilize the dog structure on the rotary drum, can rotate and open or close every jet-propelled unit, set up through these structures, can realize opening jet-propelled unit to whole or part, the different power that simulation shield tunnel circumference received, more have referential meaning to tunnel construction, effectively avoid because of the section of jurisdiction that the vertical wrong platform of section of jurisdiction leads to is cracked, the emergence of seepage problem.
Furthermore, the tenon and the tenon groove are in an annular shape coaxial with the shield tunnel model, and the tenon is an annular plate matched with the tenon.
This technical scheme all sets up tenon, tenon groove, tenon into annular structure, matches with the annular of shield tunnel model, when carrying out tenon regulation and control, the whole shield tunnel model structure of adjustment that can be more even.
The invention also provides an experimental method of the simulation system for regulating duct piece dislocation by using the tenon and mortise, which comprises the following steps: s1, splicing the preset number of segment models to form a shield tunnel model, and installing a plurality of displacement data acquisition devices on the shield tunnel model; s2, starting a blowing device to blow air to the shield tunnel model so as to enable the segment model in the shield tunnel model to generate dislocation; s3, collecting the dislocation quantity of the segment model by a displacement data collection device; and S4, closing the blowing device, and adjusting the segment model position of the shield tunnel model to reset the simulation system.
This technical scheme forms the shield tunnel model through assembling the section of jurisdiction model, and through the lifting section of jurisdiction of blowing at the uniform velocity of air-blower, ventilation pipe, the simulation section of jurisdiction wrong platform condition makes sufficient preparation for the later stage carries out the analysis of vertical wrong platform mechanism of tenon regulation and control section of jurisdiction.
Furthermore, two segment models positioned on the outermost sides of the shield tunnel model in the simulation system are respectively an initial segment and a terminal segment, and the length of a push rod on the initial segment is greater than the length of the initial segment along the axial direction of the initial segment; further included after step S4 is: step S5, the gap between two adjacent segment models is adjusted by pushing a push rod on the initial segment; step S6, starting a blowing device to blow air to the shield tunnel model so as to enable the segment model in the shield tunnel model to generate dislocation; s7, collecting the dislocation quantity of the segment model by a displacement data collection device; and S8, closing the blowing device, and adjusting the segment model position of the shield tunnel model to reset the simulation system.
According to the technical scheme, the concave-convex tenons with different lengths can be provided by adjusting the propelling amount of the starting push rod, so that the regulating and controlling effect of the concave-convex tenons with different lengths on the longitudinal dislocation phenomenon of the duct piece is obtained, the regulating and controlling mechanism of the concave-convex tenons on the longitudinal dislocation of the duct piece under various conditions can be analyzed, and more comprehensive and wide data reference can be obtained; regulate and control the vertical wrong platform of section of jurisdiction through tenon regulation and control system, eliminate section of jurisdiction wrong platform phenomenon, rely on the measuring device who installs in the section of jurisdiction model to measure the section of jurisdiction wrong platform volume around tenon regulation and control, and rely on data acquisition device to gather form parameter and transmit to analysis processing apparatus, thereby through processing apparatus's analysis calculation, obtain comparatively accurate section of jurisdiction wrong platform volume, obtain the vertical wrong platform mechanism of section of jurisdiction of tenon regulation and control, and then rely on this tenon regulation and control mechanism to regulate and control section of jurisdiction wrong platform, avoid shield tunnel to take place the section of jurisdiction cracked that the section of jurisdiction wrong platform arouses in actual work progress, disaster accidents such as seepage.
In conclusion, compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the splicing construction condition of the shield tunnel is simulated through the model unit, the segment staggering state of the shield tunnel is simulated through the segment staggering simulation unit, the regulation control of longitudinal staggering of segments in the shield tunnel is realized through the tenon-and-mortise regulation and control unit, the longitudinal staggering quantity before and after regulation is measured by the displacement monitoring system, and the regulation and control mechanism of the tenon-and-mortise on the longitudinal staggering of the segments is revealed through the analysis of measurement data, so that reference and effective suggestions are provided for regulating and controlling the segment staggering of the segments by the tenon-and-mortise, and the problems of segment cracking and leakage caused by the longitudinal staggering of the segments are effectively avoided; by adjusting the propelling amount of the starting push rod, the tenons with different lengths can be provided, the regulating and controlling effect of the tenons with different lengths on the longitudinal slab staggering phenomenon of the segment is obtained, the regulating and controlling mechanism of the tenons with different lengths on the longitudinal slab staggering of the segment is favorably analyzed, and more comprehensive and wide data reference is obtained; therefore, the longitudinal dislocation condition of the regulating and controlling duct piece with the tenon and the mortise with different lengths can be simulated, the flexibility is high, and the application range is wide.
2. The annular frame is arranged outside the shield tunnel model, and the shield tunnel model is circumferentially covered by the annular frame. In addition, a plurality of jet-propelled units that circumference set up can simulate the pressure of a plurality of positions that shield tunnel model circumference received, and set up the elastic unit on the annular frame and simulate shield tunnel model and receive external pressure when, the displacement that its circumference received power and produce changes, it is visible to pass through the setting of elastic unit and jet-propelled unit on the annular frame, can simulate the power and the corresponding change that shield tunnel circumference received in the actual tunnel construction, it is more referential meaning to tunnel construction, effectively avoid because of the section of jurisdiction that the vertical wrong platform of section of jurisdiction leads to is cracked, the emergence of seepage problem.
3. According to the invention, the multiple nested resilience structures are arranged, and due to the multiple elastic structures, when a large force is applied, the deformation energy generated is controlled in a smaller range, and the deformation and reset processes are more stable, so that the long-term test requirements can be met, the force and the corresponding change applied to the shield tunnel in the circumferential direction in the actual tunnel construction can be simulated, the reference significance is provided for the tunnel construction, and the problems of segment cracking and leakage caused by longitudinal dislocation of segments are effectively avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic diagram of a simulation system according to the present invention;
FIG. 2 is a schematic diagram of a simulation system according to the present invention;
FIG. 3 is a schematic diagram of a shield tunnel model of the simulation system of the present invention;
FIG. 4 is a schematic structural diagram of a shield tunnel model and a tenon and mortise regulating and controlling unit of the simulation system of the present invention;
FIG. 5 is a side view of a shield tunnel model and a tenon and mortise steering unit of the simulation system of the present invention;
FIG. 6 is a cross-sectional view of a shield tunnel model and a tenon and mortise modulating unit of the simulation system of the present invention;
FIG. 7 is a schematic structural diagram of a shield tunnel model and a displacement monitoring unit of the simulation system of the present invention;
FIG. 8 is a schematic structural diagram of a shield tunnel model, an annular frame, an elastic unit and an air injection unit of the simulation system of the present invention;
FIG. 9 is a schematic diagram of the structure of the elastic unit of the simulation system of the present invention;
FIG. 10 is a cross-sectional view of a first press plate of the simulation system of the present invention;
FIG. 11 is a schematic view of the structure of a bearing of the simulation system of the present invention;
fig. 12 is a schematic structural diagram of an air injection unit of the simulation system of the present invention.
Wherein, 1-a model base, 2-a ventilation pipe groove, 3-a fixing buckle, 4-a model frame, 41-a fixing frame, 42-a groove, 5-a shield tunnel model, 51-a longitudinal bolt, 52-a rope hole, 53-a starting segment, 54-a terminal segment, 6-a lifting rope, 7-a wind shield, 71-a line passing hole, 72-a U-shaped hole, 8-a ventilation pipe, 81-a main air pipe, 82-an auxiliary air pipe, 83-a control valve, 9-a blower, 10-a frequency converter, 11-a mortise, 12-a tenon groove, 13-a tenon, 14-a push rod, 15-a connecting hole, 16-a push ring, 17-a displacement data acquisition device, 18-a ring frame, 181-a first through hole, 19-an elastic unit, 20-a first pressing plate, 202-a bearing, 203-a threaded hole, 204-an annular chute, 205-a third through hole, 211-a first fixing plate, 212-a second fixing plate, 213-a pressure bar, 214-a first spring, 215-a second spring, 216-a third spring, 217-a first pressing plate, 218-a second pressing plate, 219-a third pressing plate, 2110-a connecting rod, 22-a second pressing plate, 221-a screw rod, 231-an air spring, 232-a first supporting rod, 233-a telescopic rod, 234-a connecting block, 241-a second supporting rod, 25-an exhaust air pipe, 26-an air injection unit, 261-an air injection pipe, 262-a rotating cylinder, 263-a baffle plate and 264-a ventilating cylinder.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Example 1:
this embodiment includes model unit, section of jurisdiction wrong platform simulation unit, displacement monitoring unit and tenon and mortise regulation and control unit, wherein: the model unit comprises a shield tunnel model 5 formed by splicing a plurality of segment models; the segment dislocation simulation unit comprises a dislocation simulation device, the dislocation simulation device comprises a blowing device 9, and when the segment dislocation simulation unit is used, the blowing device 9 is controlled to blow air to the shield tunnel model 5 so as to simulate a segment dislocation state; the displacement monitoring unit comprises a plurality of displacement data acquisition devices 17 arranged on the shield tunnel model 5; the tenon regulation and control unit comprises a tenon 11, a tenon 13, a tenon groove 12, a push rod 14 and a connecting hole 15, the tenon 11 and the tenon groove 12 are respectively arranged at two ends of each segment model, the connecting hole 15 is formed in each segment model, the open ends of two ends of the connecting hole 15 are respectively arranged at the bottom of the tenon 11 and the bottom surface of the tenon groove 12, one end of the push rod 14 slides to sequentially penetrate through the tenon 11, the connecting hole 15 enables the end part of the connecting hole to be arranged in the tenon groove 12, the tenon 13 is arranged at the end part of the push rod 14, and the tenon 11 and the tenon 13 between two adjacent segment models are mutually matched.
Preferably, the segment model is an annular segment; preferably, the segment models are hollow ring columns, and are connected through longitudinal bolts 51. Preferably, the displacement data acquisition device 17 is a displacement meter and a data acquisition instrument, the data acquisition instrument is used for acquiring the segment dislocation amount measured by the displacement meter, the displacement meter is arranged on the inner surface of each segment model, and the displacement meter is a linear displacement sensor; preferably, the displacement meters are arranged on the inner surface of each segment of the pipe piece model, and four displacement meters are uniformly arranged on each segment of the pipe piece model along the circumferential direction of the pipe piece model. Preferably, the air blowing device 9 is an air blower.
Preferably, the push rod 14 is a hollow aluminum rod, the length of the push rod 14 matched with the initial segment 53 is greater than the length of the initial segment 53 along the axial direction of the initial segment 53, the push rod 14 is provided with scale marks for controlling the length of a tenon, and the free end of the push rod 14 of the initial segment 53 is welded with a push ring 16 for pushing the push rod 14; the push ring 16 is a hollow aluminum ring.
Preferably, the tenon 11 and the tenon groove 12 are annular and coaxial with the shield tunnel model 5, and the tenon 13 is an annular plate matched with the tenon 11; preferably, the tenon 13 is a hollow annular plate; preferably, the tenon 13 is a hollow circular column-shaped thin-wall aluminum cylinder and can slide along the tenon groove 12, and the size of the tenon 13 is matched with the tenon groove 12 and the mortise 11.
Preferably, the front ends of the push rods 14 are free, the rear ends of the push rods 14 are connected with the tenons 13, four push rods 14 are arranged on each segment model, and the four push rods 14 are uniformly distributed along the circumferential direction of the tenons 13. Preferably, there are four connecting holes 15, the open ends of one ends of the four connecting holes 15 are uniformly distributed on the tenon 11 along the circumferential direction of the tenon 11, the open ends of the other ends of the four connecting holes 15 are uniformly distributed on the tenon 12 along the circumferential direction of the tenon 12, and the size of the connecting holes 15 is matched with the cross section of the push rod 14.
Preferably, all the connecting holes 15 are parallel to the axis of the shield tunnel model 5.
The shield tunnel is characterized in that a duct piece staggering simulation unit is used for simulating a duct piece staggering state of the shield tunnel, a tenon and tenon regulation and control unit is used for realizing regulation and control of longitudinal staggering of duct pieces in the shield tunnel, and longitudinal staggering quantity before and after regulation is measured by a displacement monitoring system. Especially, set up tenon and tenon groove at section of jurisdiction model both ends, the tenon is located the tenon groove and can follow the tenon groove slides for the tenon between the section of jurisdiction ring in the simulation actual construction regulates and control section of jurisdiction vertical slab staggering, the connecting hole is located section of jurisdiction model tenon and tenon groove annular bottom surface in pairs, the push rod passes the connecting hole, the push rod front end is free, and the rear end is connected with the tenon. The concave-convex tenon structure of the technical scheme can increase the shearing strength between rings, so that the segment dislocation quantity is eliminated, and the longitudinal dislocation of the shield segment is regulated and controlled. In addition, the length of the tenon can be selected according to actual conditions, and when the tenon adjusting device is used, the tenons with different lengths can be provided by adjusting the propelling amount of the starting push rod, so that the adjusting and controlling effects of the tenons with different lengths on the longitudinal dislocation phenomenon of the duct piece are obtained, the adjusting and controlling mechanism of the tenon on the longitudinal dislocation of the duct piece under various conditions can be analyzed, and more comprehensive and wide data reference can be obtained; therefore, the longitudinal dislocation condition of the regulating and controlling duct piece with the tenon and the mortise with different lengths can be simulated, the flexibility is high, and the application range is wide.
Example 2:
as shown in fig. 1 to 7, in this embodiment, on the basis of embodiment 1, the model unit further includes a model base 1, a model frame 4, wind shields 7 and a lifting rope 6, the model base 1 is a rectangular flat plate, the model frame 4 is a cuboid structure welded above the model base 1, the wind shields 7 are fixed on four side surfaces of the model frame 4, two ends of the lifting rope 6 are respectively connected with the top of the shield tunnel model 5 and the top of the model frame 4, two fixing frames 41 are symmetrically arranged in the model frame 4, and the two fixing frames 41 are used for supporting the bottom of the shield tunnel model 5; the segment dislocation simulation unit further comprises a ventilation pipe 8 and an air blowing device 9, the ventilation pipe 8 is installed below the shield tunnel model 5, one end of the ventilation pipe 8 is communicated with an air outlet of the air blowing device 9, the opening of the other end of the ventilation pipe 8 faces the bottom of the shield tunnel model 5, and the ventilation pipe 8 is used for blowing air to the shield tunnel model 5 through an opening end located below the shield tunnel model 5.
Preferably, the model frame 4 is a cuboid structure formed by welding hollow steel pipes with square sections; the fixing frames 41 are positioned at the left side and the right side of the shield tunnel model 5; preferably, the model base 1 and the model frame 4 are welded and fixed; preferably, the wind deflector 7 closes the side surface of the model frame 4, and the wind deflector 7 and the model frame 4 are fixed through bolts; preferably, one end of the lifting rope 6 is tied on the segment model, and the other end of the lifting rope 6 is tied on the longer side of the top of the model frame 4; preferably, two rope holes 52 are symmetrically arranged at the top of the segment model along the axial direction of the segment model, and a lifting rope 6 is tied in each of the two rope holes 52 symmetrically at two sides of the segment model along the axial direction of the segment model; preferably, the lifting rope 6 is made of inelastic cotton thread.
Preferably, the wind shield 7 is provided with a U-shaped hole 72 for the main air pipe 81 to pass through and a line passing hole 71 for the displacement monitoring unit to pass through, the ventilation pipe 8 is made of PVC (polyvinyl chloride) pipe, the air blower and the ventilation pipe 8 are used for blowing and lifting the pipe piece at a constant speed, and each auxiliary air pipe 82 corresponds to one section of pipe piece model.
Preferably, the model base 1 is a rectangular steel plate with four corners provided with grooves 42, the central line of the short side of the rectangle is provided with a vent pipe groove 2, and the area of the rectangular model base 1 is slightly larger than the bottom area of the cuboid model frame 4; preferably, the ventilating pipe slot 2 is matched with the ventilating pipe 8 in size and the fixing buckles 3 are distributed at equal intervals along the direction of the pipe slot; preferably, the groove 42 is adapted to the cross-sectional dimension of the steel pipe of the model frame 4 and is fixed by welding. Preferably, the mold base 1 is a solid stainless steel plate.
Preferably, the segment staggering simulation unit further comprises a frequency converter 10 for adjusting the air speed of the blowing device 9, the ventilation pipe 8 comprises a main air pipe 81 and a plurality of auxiliary air pipes 82 with lower ends communicated with the main air pipe 81, one end of the main air pipe 81 is communicated with an air outlet of the blowing device 9, the upper ends of the auxiliary air pipes 82 are open and extend upwards, and a control valve 83 for adjusting the air output is further arranged at the upper ends of the auxiliary air pipes 82.
Every section of jurisdiction model in this embodiment all hoists in two long limits in model frame top through two lifting ropes, arranges the ventilation pipe in section of jurisdiction model below, opens the air-blower behind the installation deep bead and passes through the ventilation pipe to blow at the uniform velocity in section of jurisdiction model bottom, and section of jurisdiction model is by the lifting under the wind-force effect to simulate out the condition that produces the section of jurisdiction dislocation in the shield constructs section of jurisdiction work progress. In addition, set up the auxiliary air duct of a plurality of lower extremes and main air duct intercommunication, utilize a plurality of auxiliary air ducts to blow to different section of jurisdiction models among the shield tunnel model, simulate different effects of blowing, control flap also can select whole or part to open the auxiliary air duct, makes the effect of blowing of ventilation pipe more various, and the flexibility is stronger, and application scope is extensive.
Example 3:
as shown in fig. 3 to 12, in this embodiment, based on embodiment 1, the model unit further includes an annular frame 18 sleeved outside the shield tunnel model 5, a plurality of rows of open hole groups are formed on a sidewall of the annular frame 18 along an axial direction thereof, each row of open hole groups corresponds to one segment model, and each row of open hole groups includes a plurality of first through holes 181 uniformly distributed along a circumferential direction of the annular frame 18; a plurality of elastic units 19 are arranged between the inner side wall of the annular frame 18 and the outer side wall of the shield tunnel model 5; the duct piece staggering simulation unit further comprises a plurality of air injection units 26 distributed in each first through hole 181 one by one. The annular frame is arranged outside the shield tunnel model, the shield tunnel model is circumferentially covered by the annular frame, and the force and the corresponding change of the shield tunnel in the actual tunnel construction can be simulated by arranging the elastic unit and the air injection unit on the annular frame.
Preferably, the elastic unit 19 includes a first pressing plate 20, a resilient member disposed between the first pressing plate 20 and the inner side wall of the annular frame 18, the resilient member includes a first fixing plate 211, a second fixing plate 212, a pressing rod 213, a first spring 214, a second spring 215, a third spring 216, a first pressing plate 217, a second pressing plate 218 and a connecting rod 2110, the first fixing plate 211 and the second fixing plate 212 are fixed on the annular frame 18, the first fixing plate 211 and the second fixing plate 212 are located between the annular frame 18 and the shield tunnel model 5, the second fixing plate 212 is located between the first fixing plate 211 and the annular frame 18, one end of the pressing rod 213 is disposed on the surface of the first pressing plate 20 close to the inner side wall of the annular frame 18, the other end of the pressing rod 213 movably penetrates through the first fixing plate 211 and extends toward the inner side wall of the annular frame 18, the first pressing plate 217 is disposed at the free end of the pressing rod 213, the side wall of the pressure lever 213 between the first fixing plate 211 and the first pressing plate 217 is sleeved with a second pressing plate 218, the pressure lever 213 movably penetrates through the second pressing plate 218, the first spring 214 is sleeved on the pressure lever 213, two ends of the first spring 214 are respectively arranged on the first pressing plate 217 and the second pressing plate 218, the second spring 215 is arranged between the first pressing plate 217 and the inner side wall of the annular frame 18, the second spring 215 movably penetrates through the second fixing plate 212, a third spring 216 sleeved outside the first spring 214 and the second spring 215 is arranged between the first fixing plate 211 and the second fixing plate 212, a third pressing plate 219 used for compressing the third spring 216 is arranged between the first pressing plate 217 and the second pressing plate 218, the pressure lever 213 movably penetrates through the third pressing plate 219, and the connecting rod 2110 is connected with the second pressing plate 218 and the third pressing plate 219. The resilience piece that has three spring, when resilience piece receives the extrusion, three spring can produce the deformation of different states, and the deformation of three spring all can produce the resistance to the pushing down of depression bar, and the resistance increases along with the stroke that the depression bar pushed down is big more, adopts multiple nested resilience structure, because multiple elastic construction sets up when receiving big power, the deformation that produces can be controlled in less within range, and deformation and reset process are more stable, can satisfy long-term experimental demand.
Preferably, the elastic unit 19 further includes a second pressing plate 22, a first supporting member, a second supporting member and a rotation supporting unit, the second pressing plate 22 is disposed between the first pressing plate 20 and the outer sidewall of the shield tunnel model 5, the first supporting member is disposed between the first pressing plate 20 and the second pressing plate 22, the first supporting member includes an air spring 231, two symmetrically disposed first supporting rods 232 and two symmetrically disposed telescopic rods 233, each telescopic rod 233 includes an inner rod and an outer sleeve sleeved outside the inner rod, the outer side wall of the inner rod and the inner side wall of the outer sleeve are provided with mutually matched threads, the inner rods of the two telescopic rods 233 are respectively hinged with the two first supporting rods 232 one by one, the end part of the outer sleeve, which is far away from the inner rod, is rotatably connected with a connecting block 234, the connecting block 234 is hinged on the surface of the second pressing plate 22, which is close to the first pressing plate 20, and two ends of the air spring 231 are respectively arranged at the hinged parts of the two first supporting rods 232 and the two telescopic rods 233; a second through hole is formed in the first pressing plate 20 along the radial direction of the shield tunnel model 5, a bearing 202 concentric with the second through hole is arranged in the second through hole, the outer ring of the bearing 202 is fixed on the inner wall of the second through hole, a threaded hole 203 concentric with the second through hole and an annular sliding groove 204 are formed in the upper surface of the inner ring of the bearing 202, and a third through hole 205 is formed in the bottom surface of one end of the annular sliding groove 204; a screw rod 221 matched with the threaded hole 203 is arranged on one side, close to the first pressing plate 20, of the second pressing plate 22; the second supporting piece comprises a second supporting rod 241, one end of the second supporting rod is arranged on the inner side wall of the annular frame 18, the other end of the second supporting rod 241 extends towards the first pressing plate 20, the end part, close to the first pressing plate 20, of the second supporting rod 241 is in contact with the first pressing plate 20, and when the second supporting rod 241 is used, the end part of the screw rod 221 enters the threaded hole 203 and drives the threaded hole 203 to rotate until the end part of the second supporting rod 241 enters the third through hole 205. Through the arrangement of the bearing, the second support rod, the lead screw and other structures, the first support piece is utilized to generate smaller resilience force, and the condition that the segment is staggered due to a tiny gap between the shield tunnel and the soil layer is simulated; when the shield tunnel is continuously staggered, the resilience piece provides a further supporting effect; the elastic piece has two-stage elastic deformation, and different duct piece staggering effects can be simulated according to different requirements. Besides, the first supporting piece utilizes the air spring to provide resilience force, the telescopic rod is further arranged into the inner rod and the outer sleeve which are in threaded connection, the length of the telescopic rod can be manually adjusted by rotating the outer sleeve, gaps of different sizes between the shield tunnel and the soil layer are simulated, the tunnel construction is more meaningful, and the occurrence of the problems of fragmentation and leakage of the duct piece caused by longitudinal dislocation of the duct piece is effectively avoided.
Preferably, the first spring 214, the second spring 215 and the third spring 216 are arranged along the radial direction of the shield tunnel model 5, and the first fixing plate 211, the second fixing plate 212, the second pressing plate 22 and the first pressing plate 20 are all perpendicular to the axial direction of the first spring 214.
Preferably, a circle of elastic units 19 is uniformly arranged along the circumferential direction of each pipeline model, that is, a plurality of circles of elastic units 19 matched with the pipeline models are arranged along the axial direction of the shield tunnel model 5.
Preferably, the segment staggering simulation unit further comprises an air outlet pipe, the air outlet pipe comprises a main air outlet pipe and a plurality of branch air pipes 25 communicated with the main air pipe 81, the main air outlet pipe is communicated with the air blowing device 9, and air outlets of the branch air pipes 25 are communicated with the plurality of air injection units 26 one by one; the air injection unit 26 comprises an air injection pipe 261 and a rotary drum 262 which are axially arranged along a first through hole 181, the axes of the air injection pipe 261 and the rotary drum 262 are not on the same straight line, the two ends of the air injection pipe 261 are open, the open end of the air injection pipe 261 far away from the shield tunnel model 5 is an air inlet, the open end of the air injection pipe 261 close to the shield tunnel model 5 is an air outlet, the rotary drum 262 is sleeved outside the air injection pipe 261, the end of the rotary drum 262 far away from the shield tunnel model 5 is provided with the first through hole 181, the air injection pipe 261 movably penetrates through the first through hole 181 and extends towards the direction far away from the shield tunnel model 5, the air inlet of the air injection pipe 261 is communicated with the air outlet of the exhaust pipe 25, the end of the rotary drum 262 near the shield tunnel model 5 is provided with a baffle 263, the baffle 263 is contacted with the air outlet of the air injection pipe 261 in an initial state, so, until the outlet of the gas lances 261 are open. Through rotating the rotary drum, utilize the dog structure on the rotary drum, can rotate and open or close every gas injection unit, through these structural settings, can realize opening gas injection unit to whole or part.
Preferably, a truncated cone-shaped ventilating duct 264 is further arranged at the end part of the rotating drum 262 close to the shield tunnel model 5 along the extension line direction of the axis of the rotating drum 262, two ends of the ventilating duct 264 are open, the opening end of the ventilating duct 264 far away from the shield tunnel model 5 is an air inlet, the opening end of the ventilating duct 264 close to the shield tunnel model 5 is an air outlet, and the cross-sectional area of the ventilating duct 264 gradually increases along the direction from the air inlet to the air outlet; when the baffle 263 contacts the outlet of the gas injection pipe 261 to close the outlet of the gas injection pipe 261, both side surfaces of the baffle 263 contact the outlet of the gas injection pipe 261 and the inlet of the funnel 264, respectively.
Example 3
The embodiment provides an experimental method of a simulation system for regulating duct piece dislocation by using a tenon and mortise, which comprises the following steps:
s1, splicing the number of the segment models with the preset number to form a shield tunnel model 5, and installing a plurality of displacement data acquisition devices 17 on the shield tunnel model 5;
s2, starting the air blowing device 9 to blow air to the shield tunnel model 5 so as to enable the segment model in the shield tunnel model 5 to generate dislocation;
s3, collecting the dislocation quantity of the segment model by the displacement data collection device 17;
and S4, closing the air blowing device 9, and adjusting the segment model position of the shield tunnel model 5 to reset the simulation system.
Preferably, two segment models positioned at the outermost sides of two sides of the shield tunnel model 5 in the simulation system are a starting segment 53 and a terminal segment 54 respectively, and the length of the push rod 14 on the starting segment 53 is greater than the length of the starting segment 53 along the axial direction thereof; further included after step S4 is: step S5, adjusting the gap between two adjacent segment models by pushing the pushing rod 14 on the starting segment 53; step S6, starting a blowing device 9 to blow air to the shield tunnel model 5 so as to make the segment model in the shield tunnel model 5 generate dislocation; s7, collecting the dislocation quantity of the segment model by the displacement data collection device 17; and S8, closing the air blowing device 9, and adjusting the segment model position of the shield tunnel model 5 to reset the simulation system.
Preferably, in the step S1, the size of the segment model is determined according to the actual engineering, and the size of the segment model is determined to meet the segment prototype of the actual construction.
Preferably, in the shield tunnel model 5, the starting segment 53 is located at the foremost end, the terminal segment 54 is located at the rearmost end, the tenon 11 is located at the front end of the segment model and is recessed in the direction away from the starting segment 53 along the axial direction of the shield tunnel model 5, and the tenon groove 12 is located at the rear end of the segment model and is recessed in the direction close to the starting segment 53 along the axial direction of the shield tunnel model 5; the tenons 11 and the tenon grooves 12 are symmetrically arranged along the axial direction of the segment model.
Preferably, in the shield tunnel model 5, the initial segment 53 has no mortise 11, the terminal segment 54 has no mortise 12, and the connecting hole 15 on the initial segment 53 is far away from the open end of the mortise 12 and extends to penetrate the initial segment 53 in the direction close to the initial segment 53 along the axial direction of the shield tunnel model 5.
This embodiment forms shield tunnel model through assembling the section of jurisdiction model, through air-blower, ventilation pipe at the uniform velocity blowing lifting section of jurisdiction, simulates the section of jurisdiction wrong platform condition, makes sufficient preparation for the analysis of the vertical wrong platform mechanism of unsmooth regulation and control section of jurisdiction in later stage. By adjusting the propelling amount of the starting push rod, the tenons with different lengths can be provided, the regulating and controlling effect of the tenons with different lengths on the longitudinal slab staggering phenomenon of the segment is obtained, the regulating and controlling mechanism of the tenons with different lengths on the longitudinal slab staggering of the segment is favorably analyzed, and more comprehensive and wide data reference is obtained; regulate and control the vertical wrong platform of section of jurisdiction through tenon regulation and control system, eliminate section of jurisdiction wrong platform phenomenon, rely on the measuring device who installs in the section of jurisdiction model to measure the section of jurisdiction wrong platform volume around tenon regulation and control, and rely on data acquisition device to gather form parameter and transmit to analysis processing apparatus, thereby through processing apparatus's analysis calculation, obtain comparatively accurate section of jurisdiction wrong platform volume, obtain the vertical wrong platform mechanism of section of jurisdiction of tenon regulation and control, and then rely on this tenon regulation and control mechanism to regulate and control section of jurisdiction wrong platform, avoid shield tunnel to take place the section of jurisdiction cracked that the section of jurisdiction wrong platform arouses in actual work progress, disaster accidents such as seepage.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. Use simulation system of tenon regulation and control section of jurisdiction dislocation, its characterized in that, including model unit, section of jurisdiction dislocation simulation unit, displacement monitoring unit and tenon regulation and control unit, wherein:
the model unit comprises a shield tunnel model (5) formed by splicing a plurality of segment models;
the segment dislocation simulation unit comprises a dislocation simulation device, the dislocation simulation device comprises a blowing device (9), and when the segment dislocation simulation unit is used, the blowing device (9) is controlled to blow air to the shield tunnel model (5) so as to simulate a segment dislocation state;
the displacement monitoring unit comprises a plurality of displacement data acquisition devices (17) arranged on the shield tunnel model (5);
the tenon regulation and control unit comprises a tenon (11), a tenon (13), a tenon groove (12), a push rod (14) and a connecting hole (15), wherein the tenon (11) and the tenon groove (12) are respectively arranged at the two ends of each segment model, the connecting hole (15) is formed in each segment model, the open ends of the two ends of the connecting hole (15) are respectively arranged at the bottom of the tenon (11) and the bottom surface of the tenon groove (12), one end of the push rod (14) slides to sequentially penetrate through the tenon (11), the connecting hole (15) is arranged in the tenon groove (12) and the end part of the connecting hole is arranged in the tenon groove (12), the tenon (13) is arranged at the end part of the push rod (14) positioned in the tenon groove (12), and the tenon (11) and the tenon (13) between two adjacent segment models are mutually matched.
2. The simulation system for regulating duct piece staggering by using tenons and tenons as claimed in claim 1, wherein the model unit further comprises a model base (1), a model frame (4), a wind shield (7) and a lifting rope (6), the model base (1) is a rectangular flat plate, the model frame (4) is a cuboid structure welded above the model base (1), the wind shield (7) is fixed on four side surfaces of the model frame (4), two ends of the lifting rope (6) are respectively connected with the shield tunnel model (5) and the top of the model frame (4), two fixing frames (41) are symmetrically arranged in the model frame (4), and the two fixing frames (41) are used for supporting the bottom of the shield tunnel model (5); the duct piece staggering simulation unit further comprises a ventilation pipe (8) and an air blowing device (9), the ventilation pipe (8) is installed below the shield tunnel model (5), one end of the ventilation pipe (8) is communicated with an air outlet of the air blowing device (9), the opening at the other end of the ventilation pipe (8) faces the bottom of the shield tunnel model (5), and the ventilation pipe (8) is used for blowing air to the shield tunnel model (5) through an opening end located below the shield tunnel model (5).
3. The system for simulating duct piece staggering using a tenon and mortise to regulate and control duct piece staggering as claimed in claim 2, wherein the duct piece staggering simulation unit further comprises a frequency converter (10) for regulating the air speed of the air blowing device (9), the ventilation pipe (8) comprises a main air pipe (81) and a plurality of auxiliary air pipes (82) with lower ends communicated with the main air pipe (81), one end of the main air pipe (81) is communicated with an air outlet of the air blowing device (9), the upper ends of the auxiliary air pipes (82) are open and extend upwards, and a control valve (83) for regulating the air output is further arranged at the upper ends of the auxiliary air pipes (82).
4. The simulation system for regulating duct piece dislocation by using the tenon and mortise as claimed in claim 1, wherein the model unit further comprises an annular frame (18) sleeved outside the shield tunnel model (5), a plurality of rows of open hole groups are formed on the side wall of the annular frame (18) along the axial direction thereof, each row of open hole groups corresponds to one duct piece model, and each row of open hole groups comprises a plurality of first through holes (181) uniformly distributed along the circumferential direction of the annular frame (18); a plurality of elastic units (19) are arranged between the inner side wall of the annular frame (18) and the outer side wall of the shield tunnel model (5); the duct piece staggering simulation unit further comprises a plurality of air injection units (26) distributed in each first through hole (181) one by one.
5. The system for simulating segment staggering using tenons and nuts as claimed in claim 4, wherein the elastic unit (19) comprises a first pressing plate (20), a resilient member disposed between the first pressing plate (20) and the inner side wall of the annular frame (18), the resilient member comprising a first fixing plate (211), a second fixing plate (212), a pressing rod (213), a first spring (214), a second spring (215), a third spring (216), a first pressing plate (217), a second pressing plate (218) and a connecting rod (2110), the first fixing plate (211) and the second fixing plate (212) are fixed on the annular frame (18), and the first fixing plate (211) and the second fixing plate (212) are located between the annular frame (18) and the shield tunnel model (5), and the second fixing plate (212) is located between the first fixing plate (211) and the annular frame (18), one end of a pressure lever (213) is arranged on the surface of a first pressure plate (20) close to the inner side wall of the annular frame (18), the other end of the pressure lever (213) movably penetrates through a first fixing plate (211) and extends towards the inner side wall of the annular frame (18), a first pressing sheet (217) is arranged at the free end of the pressure lever (213), a second pressing sheet (218) is sleeved on the side wall of the pressure lever (213) between the first fixing plate (211) and the first pressing sheet (217), the pressure lever (213) movably penetrates through the second pressing sheet (218), a first spring (214) is sleeved on the pressure lever (213), two ends of the first spring (214) are respectively arranged on the first pressing sheet (217) and the second pressing sheet (218), a second spring (215) is arranged between the first pressing sheet (217) and the inner side wall of the annular frame (18), the second spring (215) movably penetrates through the second fixing plate (212), a first spring (214) and a second spring (215) are arranged between the first fixing plate (211) and the second fixing plate (212) and sleeved outside the second spring The third spring (216), a third pressing piece (219) for compressing the third spring (216) is arranged between the first pressing piece (217) and the second pressing piece (218), the pressing rod (213) movably penetrates through the third pressing piece (219), and the connecting rod (2110) is connected with the second pressing piece (218) and the third pressing piece (219).
6. The simulation system for segment dislocation regulation and control by using a tenon and mortise as claimed in claim 5, wherein the elastic unit (19) further comprises a second pressing plate (22), a first supporting member, a second supporting member and a rotation supporting unit, the second pressing plate (22) is arranged between the first pressing plate (20) and the outer side wall of the shield tunnel model (5), the first supporting member is arranged between the first pressing plate (20) and the second pressing plate (22), the first supporting member comprises an air spring (231), two first supporting rods (232) which are symmetrically arranged and two telescopic rods (233) which are symmetrically arranged, each telescopic rod (233) comprises an inner rod and an outer sleeve which are sleeved outside the inner rod, the outer side wall of the inner rod and the inner side wall of the outer sleeve are provided with mutually matched threads, the inner rods of the two telescopic rods (233) are respectively hinged with the two first supporting rods (232), the end part, far away from the inner rod, of the outer sleeve is rotatably connected with a connecting block (234), the connecting block (234) is hinged to the surface, close to the first pressing plate (20), of the second pressing plate (22), and two ends of the air spring (231) are respectively arranged at the hinged positions of the two first supporting rods (232) and the two telescopic rods (233); a second through hole is formed in the first pressing plate (20) along the radial direction of the shield tunnel model (5), a bearing (202) concentric with the second through hole is arranged in the second through hole, the outer ring of the bearing (202) is fixed on the inner wall of the second through hole, a threaded hole (203) concentric with the second through hole and an annular sliding groove (204) are formed in the upper surface of the inner ring of the bearing (202), and a third through hole (205) is formed in the bottom surface of one end of the annular sliding groove (204); a screw rod (221) matched with the threaded hole (203) is arranged on one side, close to the first pressing plate (20), of the second pressing plate (22); the second support piece comprises a second supporting rod (241) with one end arranged on the inner side wall of the annular frame (18), the other end of the second supporting rod (241) extends towards the first pressing plate (20), the end part of the second supporting rod (241) close to the first pressing plate (20) is in contact with the first pressing plate (20), and when the screw rod (221) is used, the end part of the screw rod enters the threaded hole (203) and drives the threaded hole (203) to rotate until the end part of the second supporting rod (241) enters the third through hole (205).
7. The system for simulating segment dislocation using tenon-and-mortise regulation and control of claim 4, wherein the segment dislocation simulation unit further comprises an air outlet pipe, the air outlet pipe comprises a main air outlet pipe and a plurality of branch air pipes (25) communicated with the main air pipe (81), the main air outlet pipe is communicated with the blowing device (9), and air outlets of the plurality of branch air pipes (25) are communicated with the plurality of air injection units (26) one by one; the air injection unit (26) comprises an air injection pipe (261) and a rotary drum (262) which are axially arranged along a first through hole (181), the axes of the air injection pipe (261) and the rotary drum (262) are not on the same straight line, the two ends of the air injection pipe (261) are opened, the open end of the air injection pipe (261) far away from the shield tunnel model (5) is an air inlet, the open end of the air injection pipe (261) close to the shield tunnel model (5) is an air outlet, the rotary drum (262) is sleeved on the outer side of the air injection pipe (261), the end of the rotary drum (262) far away from the shield tunnel model (5) is provided with a first through hole (181), the air injection pipe (261) movably penetrates through the first through hole (181) and extends towards the direction far away from the shield tunnel model (5), the air inlet of the air injection pipe (261) is communicated with the air outlet of the outgoing air pipe (25), a baffle plate (263), the baffle (263) is contacted with the air outlet of the air injection pipe (261) in the initial state, so that the air outlet of the air injection pipe (261) is closed, and the rotary drum (262) is rotated when the air injection device is used, so that the baffle (263) is separated from the air outlet of the air injection pipe (261) until the air outlet of the air injection pipe (261) is opened.
8. The system for simulating segment staggering using tenons and tenons as claimed in claim 1, wherein the tenons (11) and the tenon grooves (12) are annular and coaxial with the shield tunnel model (5), and the tenons (13) are annular plates matched with the tenons (11).
9. The experimental method of the simulation system for segment dislocation regulation by using the tenon and mortise as claimed in any one of claims 1 to 8, comprising the steps of:
s1, splicing the number of the segment models with the preset number to form a shield tunnel model (5), and installing a plurality of displacement data acquisition devices (17) on the shield tunnel model (5);
s2, starting a blowing device (9) to blow air to the shield tunnel model (5) so as to enable the segment model in the shield tunnel model (5) to generate dislocation;
s3, collecting the dislocation quantity of the segment model by a displacement data collecting device (17);
and S4, closing the air blowing device (9), and adjusting the segment model position of the shield tunnel model (5) to reset the simulation system.
10. The experimental method of a simulation system for segment dislocation using a tenon-and-mortise regulation and control as claimed in claim 9, wherein two segment models positioned at the outermost sides of the shield tunnel model (5) in the simulation system are a starting segment (53) and a terminal segment (54), respectively, and the length of the push rod (14) on the starting segment (53) is greater than the length of the starting segment (53) along the axial direction thereof; further included after step S4 is: step S5, the gap between two adjacent segment models is adjusted by pushing a push rod (14) on the initial segment (53); step S6, starting a blowing device (9) to blow air to the shield tunnel model (5) so as to enable the segment model in the shield tunnel model (5) to generate dislocation; s7, collecting the dislocation quantity of the segment model by a displacement data collecting device (17); and S8, closing the air blowing device (9), and adjusting the segment model position of the shield tunnel model (5) to reset the simulation system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011577342.1A CN112730083B (en) | 2020-12-28 | 2020-12-28 | Simulation system and experimental method for regulating and controlling segment staggering by using rebate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011577342.1A CN112730083B (en) | 2020-12-28 | 2020-12-28 | Simulation system and experimental method for regulating and controlling segment staggering by using rebate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112730083A true CN112730083A (en) | 2021-04-30 |
| CN112730083B CN112730083B (en) | 2024-05-28 |
Family
ID=75606292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011577342.1A Active CN112730083B (en) | 2020-12-28 | 2020-12-28 | Simulation system and experimental method for regulating and controlling segment staggering by using rebate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112730083B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114199187A (en) * | 2021-11-29 | 2022-03-18 | 宁波市轨道交通集团有限公司 | Shield tunnel model test device and method |
Citations (35)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB321281A (en) * | 1928-09-25 | 1929-11-07 | Carborundum Co | Improvements in or relating to furnaces |
| CA349091A (en) * | 1935-03-26 | E. Ruegg Arthur | Concrete building system | |
| US4455807A (en) * | 1982-05-28 | 1984-06-26 | Evans Products Company | Splice rail assembly |
| JPH06280496A (en) * | 1993-03-29 | 1994-10-04 | Penta Ocean Constr Co Ltd | Structure for coupling ring to segment in shield method |
| JP2001288992A (en) * | 2000-01-31 | 2001-10-19 | Geostr Corp | Segment ring for shield construction work, segment and inter-ring joint |
| JP2006133089A (en) * | 2004-11-05 | 2006-05-25 | National Institute For Materials Science | Ultrahigh vacuum scanning probe microscope |
| WO2007062496A1 (en) * | 2005-12-02 | 2007-06-07 | Danisch Lee A | Shape-acceleration measurement device and apparatus |
| CN102735287A (en) * | 2012-06-19 | 2012-10-17 | 周仲华 | Method and equipment for fully-automatically detecting motor commutator |
| CN203271763U (en) * | 2013-02-07 | 2013-11-06 | 广东省水利电力勘测设计研究院 | Lining segment for sea-crossing shield tunnel |
| AU2012372427A1 (en) * | 2012-03-07 | 2014-07-24 | Nippon Steel Corporation | Misalignment calculation system |
| CN203796279U (en) * | 2014-03-14 | 2014-08-27 | 上海市政工程设计研究总院（集团）有限公司 | Shear-resisting structure of composite pipe piece |
| CN203962019U (en) * | 2014-07-31 | 2014-11-26 | 上海市城市建设设计研究总院 | Smoke evacuation system in tunnel |
| US20150068274A1 (en) * | 2012-05-17 | 2015-03-12 | Garry Peters | System for measuring golf swing parameter data on impact of a golf club face with a target surface |
| US20150125215A1 (en) * | 2011-06-21 | 2015-05-07 | Stabinor As | Method for constructing a tunnel course, and structural element for use by the method |
| CN105736011A (en) * | 2016-03-21 | 2016-07-06 | 长安大学 | Shield tunnel slab staggering problem handling structure and construction method |
| CN205477651U (en) * | 2016-03-21 | 2016-08-17 | 长安大学 | Wrong platform disease punishment structure of shield tunnel |
| CN106801610A (en) * | 2017-03-13 | 2017-06-06 | 上海隧道工程有限公司 | Using layered construct section of jurisdiction block between jointing and using its connect method |
| CN107515232A (en) * | 2017-10-23 | 2017-12-26 | 许昌学院 | A kind of roadbed freezing and thawing circulating test device |
| CN107701201A (en) * | 2017-10-30 | 2018-02-16 | 西南石油大学 | A kind of duct pieces of shield tunnel sealing gasket |
| CN207660616U (en) * | 2017-06-16 | 2018-07-27 | 天津大学 | Shield tunnel straightway pipe ring rigidity of structure Worm-gear type stiffening device |
| CN108663271A (en) * | 2018-05-10 | 2018-10-16 | 西南交通大学 | The horizontal load test system and method for shape of a hoof shield duct piece structural bearing capacity performance |
| CN108709534A (en) * | 2018-06-27 | 2018-10-26 | 中国地质大学（武汉） | Shield tunnel construction stress deformation indoor model test device and its installation method |
| CN109357939A (en) * | 2018-12-12 | 2019-02-19 | 中铁十八局集团有限公司 | Shield sky pushes away field testing procedure |
| CN109520851A (en) * | 2018-12-12 | 2019-03-26 | 中铁十八局集团有限公司 | Section of jurisdiction faulting of slab ends testing method |
| CN110107312A (en) * | 2019-05-27 | 2019-08-09 | 中铁第四勘察设计院集团有限公司 | Shield duct piece and shield segment assembling structure |
| CN209280462U (en) * | 2018-11-30 | 2019-08-20 | 西南交通大学 | A kind of shield tunnel segment lining structure longitudinal rigidity test device |
| CN110307006A (en) * | 2019-05-28 | 2019-10-08 | 同济大学 | A kind of tenon joint type duct pieces of shield tunnel and attaching method thereof |
| CN110671127A (en) * | 2019-08-21 | 2020-01-10 | 王旭 | Novel tunnel segment structure and stress monitoring device thereof |
| CN110967252A (en) * | 2019-12-02 | 2020-04-07 | 济南大学 | Device for simulating influence of shield tunnel construction on existing tunnel and using method thereof |
| CN111272980A (en) * | 2020-02-29 | 2020-06-12 | 西南石油大学 | Simulation system and experimental method for regulating shield floating of mudstone stratum |
| CN211553993U (en) * | 2020-02-29 | 2020-09-22 | 西南石油大学 | Simulation device for regulating shield floating of mudstone stratum |
| CN211825464U (en) * | 2020-01-21 | 2020-10-30 | 中铁十五局集团有限公司 | Shield tunnel segment circular seam staggering multifunctional test device |
| CN213749412U (en) * | 2020-12-28 | 2021-07-20 | 西南石油大学 | Simulation system for regulating duct piece dislocation by using tenon and mortise |
| CN114414385A (en) * | 2021-12-30 | 2022-04-29 | 天津大学 | Shield segment testing device and method |
| CN115452572A (en) * | 2022-09-14 | 2022-12-09 | 中国地质大学（武汉） | Test device and method for testing neutral axis position and longitudinal equivalent bending rigidity of shield tunnel |
-
2020
- 2020-12-28 CN CN202011577342.1A patent/CN112730083B/en active Active
Patent Citations (35)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA349091A (en) * | 1935-03-26 | E. Ruegg Arthur | Concrete building system | |
| GB321281A (en) * | 1928-09-25 | 1929-11-07 | Carborundum Co | Improvements in or relating to furnaces |
| US4455807A (en) * | 1982-05-28 | 1984-06-26 | Evans Products Company | Splice rail assembly |
| JPH06280496A (en) * | 1993-03-29 | 1994-10-04 | Penta Ocean Constr Co Ltd | Structure for coupling ring to segment in shield method |
| JP2001288992A (en) * | 2000-01-31 | 2001-10-19 | Geostr Corp | Segment ring for shield construction work, segment and inter-ring joint |
| JP2006133089A (en) * | 2004-11-05 | 2006-05-25 | National Institute For Materials Science | Ultrahigh vacuum scanning probe microscope |
| WO2007062496A1 (en) * | 2005-12-02 | 2007-06-07 | Danisch Lee A | Shape-acceleration measurement device and apparatus |
| US20150125215A1 (en) * | 2011-06-21 | 2015-05-07 | Stabinor As | Method for constructing a tunnel course, and structural element for use by the method |
| AU2012372427A1 (en) * | 2012-03-07 | 2014-07-24 | Nippon Steel Corporation | Misalignment calculation system |
| US20150068274A1 (en) * | 2012-05-17 | 2015-03-12 | Garry Peters | System for measuring golf swing parameter data on impact of a golf club face with a target surface |
| CN102735287A (en) * | 2012-06-19 | 2012-10-17 | 周仲华 | Method and equipment for fully-automatically detecting motor commutator |
| CN203271763U (en) * | 2013-02-07 | 2013-11-06 | 广东省水利电力勘测设计研究院 | Lining segment for sea-crossing shield tunnel |
| CN203796279U (en) * | 2014-03-14 | 2014-08-27 | 上海市政工程设计研究总院（集团）有限公司 | Shear-resisting structure of composite pipe piece |
| CN203962019U (en) * | 2014-07-31 | 2014-11-26 | 上海市城市建设设计研究总院 | Smoke evacuation system in tunnel |
| CN105736011A (en) * | 2016-03-21 | 2016-07-06 | 长安大学 | Shield tunnel slab staggering problem handling structure and construction method |
| CN205477651U (en) * | 2016-03-21 | 2016-08-17 | 长安大学 | Wrong platform disease punishment structure of shield tunnel |
| CN106801610A (en) * | 2017-03-13 | 2017-06-06 | 上海隧道工程有限公司 | Using layered construct section of jurisdiction block between jointing and using its connect method |
| CN207660616U (en) * | 2017-06-16 | 2018-07-27 | 天津大学 | Shield tunnel straightway pipe ring rigidity of structure Worm-gear type stiffening device |
| CN107515232A (en) * | 2017-10-23 | 2017-12-26 | 许昌学院 | A kind of roadbed freezing and thawing circulating test device |
| CN107701201A (en) * | 2017-10-30 | 2018-02-16 | 西南石油大学 | A kind of duct pieces of shield tunnel sealing gasket |
| CN108663271A (en) * | 2018-05-10 | 2018-10-16 | 西南交通大学 | The horizontal load test system and method for shape of a hoof shield duct piece structural bearing capacity performance |
| CN108709534A (en) * | 2018-06-27 | 2018-10-26 | 中国地质大学（武汉） | Shield tunnel construction stress deformation indoor model test device and its installation method |
| CN209280462U (en) * | 2018-11-30 | 2019-08-20 | 西南交通大学 | A kind of shield tunnel segment lining structure longitudinal rigidity test device |
| CN109520851A (en) * | 2018-12-12 | 2019-03-26 | 中铁十八局集团有限公司 | Section of jurisdiction faulting of slab ends testing method |
| CN109357939A (en) * | 2018-12-12 | 2019-02-19 | 中铁十八局集团有限公司 | Shield sky pushes away field testing procedure |
| CN110107312A (en) * | 2019-05-27 | 2019-08-09 | 中铁第四勘察设计院集团有限公司 | Shield duct piece and shield segment assembling structure |
| CN110307006A (en) * | 2019-05-28 | 2019-10-08 | 同济大学 | A kind of tenon joint type duct pieces of shield tunnel and attaching method thereof |
| CN110671127A (en) * | 2019-08-21 | 2020-01-10 | 王旭 | Novel tunnel segment structure and stress monitoring device thereof |
| CN110967252A (en) * | 2019-12-02 | 2020-04-07 | 济南大学 | Device for simulating influence of shield tunnel construction on existing tunnel and using method thereof |
| CN211825464U (en) * | 2020-01-21 | 2020-10-30 | 中铁十五局集团有限公司 | Shield tunnel segment circular seam staggering multifunctional test device |
| CN111272980A (en) * | 2020-02-29 | 2020-06-12 | 西南石油大学 | Simulation system and experimental method for regulating shield floating of mudstone stratum |
| CN211553993U (en) * | 2020-02-29 | 2020-09-22 | 西南石油大学 | Simulation device for regulating shield floating of mudstone stratum |
| CN213749412U (en) * | 2020-12-28 | 2021-07-20 | 西南石油大学 | Simulation system for regulating duct piece dislocation by using tenon and mortise |
| CN114414385A (en) * | 2021-12-30 | 2022-04-29 | 天津大学 | Shield segment testing device and method |
| CN115452572A (en) * | 2022-09-14 | 2022-12-09 | 中国地质大学（武汉） | Test device and method for testing neutral axis position and longitudinal equivalent bending rigidity of shield tunnel |
Non-Patent Citations (9)
| Title |
|---|
| "盾构隧道穿越特殊地质围岩位移向量趋势线变形响应特征", 《隧道建设》, vol. 39, no. 02, 6 March 2019 (2019-03-06), pages 240 - 245 * |
| LIU X 等: "Prototype test of the mechanical behavior and failure mechanism of segment structure with distributed mortises and tenons", 《STRUCTURAL CONCRETE》, vol. 23, no. 5, 30 October 2020 (2020-10-30), pages 2837 - 2851 * |
| ZHANG JW 等: "Characteristic parameters\' optimazation based on contact pressure of sealing gasket for segmental joints", 《ADVANCES IN MECHANICAL ENGINEERING》, vol. 12, no. 7, 31 July 2020 (2020-07-31), pages 1 - 5 * |
| 周明军;: "盾构隧道管片结构纵向错台研究", 铁道建筑技术, no. 05, 20 October 2008 (2008-10-20), pages 83 - 86 * |
| 姚润樾: "预制拼装综合管廊管片接缝橡胶密封垫的长期性能与截面优化研究", 《中国优秀硕士学位论文全文数据库工程科技II辑》, no. 1, 5 January 2020 (2020-01-05), pages 038 - 2106 * |
| 张社荣;霍恒炎;王枭华;王超;: "基于三维非连续接触模型的管片错台分布规律及影响因素研究", 铁道标准设计, no. 08, 21 November 2017 (2017-11-21), pages 98 - 103 * |
| 李翔宇;王志良;刘铭;李明宇;: "基于管片错台的通缝拼装盾构隧道纵向变形安全评估", 现代隧道技术, no. 06, 15 December 2011 (2011-12-15), pages 33 - 37 * |
| 石立成;杜守继;张强;: "盾构通缝拼装隧道纵向错台的数值模拟分析", 石家庄铁道学院学报(自然科学版), no. 03, 15 September 2007 (2007-09-15), pages 40 - 43 * |
| 裘嵩;: "错台处治技术在水泥混凝土路面的应用", 山西交通科技, no. 05, 15 October 2009 (2009-10-15), pages 18 - 19 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114199187A (en) * | 2021-11-29 | 2022-03-18 | 宁波市轨道交通集团有限公司 | Shield tunnel model test device and method |
| CN114199187B (en) * | 2021-11-29 | 2024-01-16 | 宁波市轨道交通集团有限公司 | Shield tunnel model test device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112730083B (en) | 2024-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213749412U (en) | Simulation system for regulating duct piece dislocation by using tenon and mortise | |
| CN103234573B (en) | Dust environment simulation equipment | |
| CN106404407B (en) | Adjustable fanning strip flow distortion simulator | |
| CN112730083A (en) | Simulation system and experimental method for regulating duct piece dislocation by using tenon and mortise | |
| CN109611139B (en) | Natural draft tunnel ventilation mechanism test system | |
| EP3534079A1 (en) | Method for determining the individual chamber air volume flows in central ventilation systems and for pneumatically matching of ventilation systems | |
| CN105571969A (en) | Testing device for SCR denitration crystal abrasion strength property and testing method thereof | |
| CN103089287A (en) | Adjustable working face dust simulation experiment device | |
| CN105067220A (en) | Mine ventilation network system experimental device and method | |
| CN108827625A (en) | A kind of building element testing machine calibrating installation and its simulation window | |
| CN208688801U (en) | Building element testing machine calibrating installation and its simulation window | |
| CN101367119B (en) | Simulation device for simulating conticaster double-cooling nozzle cooling performance | |
| CN204903126U (en) | A flow control device for low speed wind tunnel TPS is experimental | |
| CN111896263A (en) | Grid finger type distortion generator | |
| CN202869772U (en) | Airflow simulation experiment apparatus | |
| CN104500124B (en) | A kind of city tunnel ventilation testing device and making method thereof | |
| CN110006617B (en) | Integrated wind tunnel for simulating mobile tornado and downburst | |
| CN203342974U (en) | Dust spreading device | |
| CN115615910A (en) | Simulation karst district vegetation soil slope unstability destruction device under multifactor | |
| CN215496835U (en) | Testing arrangement suitable for fuel cell air compressor machine | |
| CN214944382U (en) | Ventilation equipment for subway tunnel | |
| CN114383850A (en) | Open test bed thrust correction method under natural wind condition | |
| CN114061996A (en) | Device for simulating longitudinal ventilation and smoke control effect of fire hazard of highway tunnel and smoke control method | |
| CN209586409U (en) | Simulate the experimental provision of a variety of production scene ventilations in mine | |
| CN110361059B (en) | Automatic loading device for air quantity detection pore plate of range hood |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |