CN206573306U - It is a kind of to simulate the experimental rig that class rectangle shield segmented is excavated - Google Patents
It is a kind of to simulate the experimental rig that class rectangle shield segmented is excavated Download PDFInfo
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- CN206573306U CN206573306U CN201720268121.3U CN201720268121U CN206573306U CN 206573306 U CN206573306 U CN 206573306U CN 201720268121 U CN201720268121 U CN 201720268121U CN 206573306 U CN206573306 U CN 206573306U
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Abstract
The experimental rig that class rectangle shield segmented is excavated is simulated the utility model proposes a kind of, including several unit class rectangle shield machines are connected in sequence, each unit class rectangle shield machine includes drive control unit, two contracting mechanisms and outer framework；The drive control unit includes four motors, and output end connection worm gear screw rod, its rear end and the electrified wire of each motor power are connected；Four motors are secure around on each support frame respectively by motor fixture.The utility model uses mechanical structure, using rigid mechanical structure and shell, and effective resistance to compression prevents deformation, makes data more accurate.Using Discrete control, the data variation in realistic simulation is more conformed to.The utility model is simple and convenient, while considering influence of the class rectangle shield machine in the process of running to ground loss, the motor control of use also can preferably carry out related indoor model test.
Description
Technical field
The utility model belongs to underground engineering technical field, and in particular to what a kind of simulation class rectangle shield segmented was excavated
Experimental rig.
Background technology
A kind of novel shield engineering method：Class rectangle shield method is applied in No. 3 line engineerings of ningbo of china subway.
And during class rectangle shield-tunneling construction, surrounding soil can be caused to deform, underground utilities around and building can be caused unavoidably
Influence.In this regard, being necessary to be furtherd investigate, to assist to ensure the safety in work progress.
And in research process, there are many uncertain factors in on-the-spot test, therefore mostly using indoor contracting dimension model examination
Test, it is a kind of to simulate the experimental rig that class rectangle shield segmented excavates and be more convenient for the progress of experiment in view of the need for experiment, obtain
The test data obtained can provide effective help for practice of construction in future.
Drawn according to available data, the related reduced scale cun simulated experiment of class rectangle shield machine is less.And most soil body simulations
Experiment has the following disadvantages：
(1) the shield machine model for there was only single-unit is shunk and expanded simulation, only study two-dimensional soil deformation；
(2) existing most class rectangle simulation shield machines are not fine more coarse enough, there is certain shadow to data accuracy
Ring；Or run manually, operate comparatively laborious.
Or the rectangular shield machine simulation driving experiment as Shanghai shield contrived experiment research center Co., Ltd is done is ground
Study carefully, which use the experiment rectangular shield machine that sectional dimension is 1200mm × 1000mm, the testing machine uses cross knot
The digging of structure cutting tool, two groups of reductors and oil motor drive device drive, have also been devised centralized lubricating system in addition；Or
Such as its literary team of Tongji University's fourth, a kind of class rectangle shield cutting of use promotes simulation experiment system.In view of the two models
Pilot system carries out reduced scale cun with actual shield machine construction, so maximum is disadvantageous in that：
(3) for full-scale model test or field experiment, expense is far above the homemade class rectangle shield of this set system
Machine model test apparatus.
Utility model content
The purpose of this utility model is to overcome not enough in the prior art, and the purpose of this utility model is just to provide a kind of simulation
The segmented reduced scale cun experimental rig of class rectangle shield tunneling, it is proposed that 1:20 reduced scale cun class rectangle shield prototype, passes through
The design of segmented, so as to consider three-dimensional soil deformation, with motor control shield machine is used, operation is convenient, saves test period,
Employ the contracting model machine of outer rigid housing simultaneously to reach that simulation shield machine operation causes the purpose of ground loss, moreover it is possible to control
The soil deformation of the ground loss of degree of precision and actual conditions of more coincideing, provides truer, accurate for constructing tunnel and design
True experimental data, with ensure that city shield tunnel builds it is efficient with it is safe.
In order to achieve the above object, the utility model is achieved through the following technical solutions：
The experimental rig that class rectangle shield segmented is excavated, including several unit classes are simulated the utility model proposes a kind of
Rectangular shield machine is connected in sequence, each unit class rectangle shield machine include drive control unit, two contracting mechanisms and
Outer framework；
The drive control unit includes four motors, and the output end of each motor power connects worm gear
Screw rod, its rear end and electrified wire are connected；
Four motors are secure around on each support frame respectively by motor fixture；
Outer framework is four class arc shell piece connection compositions, respectively by recessed between two neighboring class arc shell piece
Slot structure is inlayed, and maintains free gap between two neighboring arc-like sheet；Free gap between two neighboring arc-like sheet
Outside is provided with mud guard；
Contracting mechanism is respectively mounted at the two ends of unit class rectangle shield machine；
Two contracting mechanisms are divided into elevating mechanism and horizontal contracting mechanism, wherein：
Elevating mechanism includes rotating disk, bull stick, arc elevator and support frame；Horizontal contracting mechanism includes gear and rotating shaft；
Rotating disk is connected by rotating shaft with support frame, and rotating disk is connected by bull stick with arc elevator, is arranged on driving output
The gear at end is meshed with the rack on support frame；The support frame other end is fixedly connected with outer framework；
Rotating disk is rotated by drive control unit, bull stick is driven, arc elevator is rotated, lower bracing frame is hung down
Straight motion, realizes the height change of class rectangle shield machine；
Simultaneously by drive control unit rotate gear, the rack being connected with support frame is driven, left and right sidesing supporting frame is carried out
Move horizontally, realize the change width of class rectangle shield machine.
As preferred：Connected between two neighboring unit shield machine by rubber Membrane cover.
Compared with prior art, the beneficial effects of the utility model are as follows：
Innovative point one of the present utility model：Using mechanical structure, using rigid mechanical structure and shell, effective resistance to compression is prevented
Only deformation, makes data more accurate.
Innovative point two of the present utility model：Using Discrete control, the data variation in realistic simulation is more conformed to.
Innovative point three of the present utility model：The control of device can be controlled by computer or Electronic Control end completely, make behaviour
Make convenient stable, can preferably simulate multinomial experiment.
The utility model, rotating shrinking amplitude is controlled using motor and gear, and rotating shrinking is easily controllable and stably, can be first
Expanded after contraction, simulation class rectangle shield machine excavates the process of ground loss completely.
The utility model is combined using multiple unit class rectangle shield machines, can be adjusted unit class rectangle shield machine quantity and be existed
The simulation of different length, and the side of combination between unit class rectangle shield machine and unit class rectangle shield machine are carried out in multiple model casings
Just.
The utility model is simple and convenient, while considering shadow of the class rectangle shield machine in the process of running to ground loss
Ring, the motor control of use also can preferably carry out related indoor model test.
Brief description of the drawings
Fig. 1 be the utility model device before deflation after difference in areas schematic diagram.
Fig. 2 is the utility model device side structure schematic diagram.
Fig. 3 is the utility model device dimensional structure diagram.
Fig. 4 is the perisystolic structural representation of the utility model device.
Fig. 5 is the structural representation after the utility model device shrinks.
Reference：Gear (1), motor (2), arc elevator (3), mud guard (4), outer framework (5), support frame
(6), bull stick (7), rotating disk (8), rotating shaft (9), motor fixture (10).
Embodiment
The technical solution of the utility model is described further with reference to Figure of description：
As shown in Fig. 1~5, the utility model proposes a kind of tool for simulating the experimental rig that class rectangle shield segmented is excavated
Body embodiment, including several unit class rectangle shield machines are connected in sequence, and each unit class rectangle shield machine includes driving
Dynamic control unit, two contracting mechanisms and outer framework 5, the drive control unit include four motors 2, and each drive
Output end connection worm gear screw rod, its rear end and the electrified wire of the dynamic power of motor 2 are connected；Four motors 2 are solid by motor
Determine part 10 to be secure around respectively on each support frame 6；Outer framework 5 is four class arc shell piece connection compositions, two neighboring
Inlayed respectively by groove structure between class arc shell piece, and free gap is maintained between two neighboring arc-like sheet；In phase
Mud guard 4 is installed on the outside of free gap between adjacent two arc-like sheets；As shown in Figure 4 and Figure 5：In unit class rectangle shield machine
Two ends be respectively mounted contracting mechanism, two contracting mechanisms are divided into elevating mechanism and horizontal contracting mechanism, wherein：Elevating mechanism bag
Include rotating disk 8, bull stick 7, arc elevator 3 and support frame 6；Horizontal contracting mechanism includes gear 1 and rotating shaft 9；Rotating disk 8 passes through rotating shaft
9 are connected with support frame 6, and rotating disk 8 is connected by bull stick 7 with arc elevator 3, are arranged on gear 1 and the support of drive output
Rack on frame 6 is meshed；The other end of support frame 6 is fixedly connected with outer framework 5；Rotating disk 8, band are rotated by drive control unit
Dynamic bull stick 7, rotates arc elevator 3, is in vertical motion lower bracing frame 6, realizes that the height of class rectangle shield machine becomes
Change；Simultaneously by drive control unit rotate gear 1, the rack being connected with support frame 6 is driven, left and right sidesing supporting frame 6 is entered water-filling
Translation is dynamic, realizes the change width of class rectangle shield machine.
Wherein：Connected between two neighboring unit shield machine by rubber Membrane cover.
The course of work and operation principle of the present utility model are：Installed in experiment soil box and place this model, then carried out
Banketed the actual soil pressure simulated in true construction environment, and model is buried in the earth, under the control of control end, model
Product is shunk, and realizes ground loss phenomenon of the simulation class rectangle shield machine in tunneling.
Drive control unit：This model equipment is driven using multiple motors, and motor four is one group, each unit class
There are two groups of motors and two groups of reductors on rectangular shield machine, and equipped with supporting adn fixing device.Motor, which is rotated, makes lifting
Mechanism and the motion of horizontal contracting mechanism, to make after motor stop motion fixed volume and keeping stable, are employed herein snail
The self-locking performance of wheel, installs worm-and-wheel gear at motor power output.Motor output connection contracting mechanism, rear end
Electrified wire is connected, every group of electrified wire controls one group of motor, and multigroup electrified wire is connected with outside control end.Control end
Every group of motor can be then controlled respectively, and two groups of motors control the motion of a unit class rectangle shield machine, make mould
Type realizes Discrete control.
As shown in Figure 4 and Figure 5, contracting mechanism：There is contracting mechanism at class rectangle shield machine two ends, and contracting mechanism is divided into lifting
Mechanism and horizontal contracting mechanism.Elevating mechanism：Rotating disk is rotated by drive control unit, bull stick is driven, turns arc elevator
It is dynamic, lower bracing frame is in vertical motion, changes the height of class rectangle shield machine；Horizontal contracting mechanism：Pass through drive control
Unit rotational gear, drives the rack being connected with support frame, is moved horizontally left and right sidesing supporting frame, changes class rectangle shield machine
Width.To change the area of circular section, reach change cylinder volume to reach that simulation class rectangle shield machine causes soil to damage
The purpose of mistake, elevating mechanism and horizontal contracting mechanism are moved by motor driving, change the Gao Yukuan of the model, and because
For frictional force, under the various factors such as external pressure, outer framework hardly along significantly rotating counterclockwise, in the effect of contracting mechanism
It is lower that to contract, before and after shrinking, the area in class rectangle section there occurs change such as Fig. 1, so that the change of volume, by calculating
It is required that to reduce 5%.
Class rectangle outer framework is then made up of four class arc shell pieces, and its seam crossing prevents sandy soil from entering using embedded structure
Enter causes stuck or can not shrink in seam, and installs mud guard in outer layer.
Space wastage formula is in Fig. 1：
(high and a width of fixed proportion)
(C is space wastage percentage)
Wherein：X is horizontal width, unit mm；Y is vertical height, unit mm；Δ X is horizontal width knots modification, unit
mm；Δ Y is vertical height knots modification, unit mm.This model X=575mm；Y=350mm.
Model segment is connected：One unit class square is constituted with the combination of two groups of motors, two groups of contracting mechanisms and outer framework
Shape shield machine, each unit class rectangle shield machine is all connected respectively at control end, control end can be allow to distinguish by particular order
The contraction of control unit class rectangle shield machine, reaches the purpose of Discrete control, and the data multistage for obtaining detection produces class
It is similar to the simulation of ground loss during class rectangle shield machine is pushed ahead.All installed immediately below each unit class rectangle shield machine
Horizontal alignment and support meanss, are connected with rubber Membrane cover between unit class rectangle shield machine and unit class rectangle shield machine, made each
Unit class rectangle shield machine will not be offset, and improve three-dimensional accuracy.
By the coordinate operation of said apparatus, control end is set to control a unit class rectangle shield respectively by particular order
The contraction of machine, makes ground loss progressively carry out, and realizes the full simulation for ground loss in true constructing tunnel, coordinates other
Equipment is monitored, makes soil body delta data.
It, to explanation of the present utility model, is limited of the present utility model that above-described embodiment, which is, any new to this practicality
Scheme after type simple transformation belongs to protection domain of the present utility model.
Claims (3)
1. a kind of simulate the experimental rig that class rectangle shield segmented is excavated, it is characterised in that including several unit class rectangles
Shield machine is connected in sequence, and each unit class rectangle shield machine includes drive control unit, two contracting mechanisms and housing
Frame (5), the drive control unit includes four motors (2), and the output end of each motor (2) power is connected
Worm gear screw rod, its rear end and electrified wire are connected；Four motors (2) are secure around respectively by motor fixture (10)
On each support frame (6)；
Outer framework (5) is four class arc shell piece connection compositions, respectively by recessed between two neighboring class arc shell piece
Slot structure is inlayed, and maintains free gap between two neighboring arc-like sheet；Pacify respectively at the two ends of unit class rectangle shield machine
Contracting mechanism is filled, two contracting mechanisms are divided into elevating mechanism and horizontal contracting mechanism, wherein：Elevating mechanism includes rotating disk (8), turned
Bar (7), arc elevator (3) and support frame (6)；Horizontal contracting mechanism includes gear (1) and rotating shaft (9)；Rotating disk (8) is by turning
Axle (9) is connected with support frame (6), and rotating disk (8) is connected by bull stick (7) with arc elevator (3), is arranged on drive output
Gear (1) is meshed with the rack on support frame (6)；Support frame (6) other end is fixedly connected with outer framework (5)；
Rotating disk (8) is rotated by drive control unit, bull stick (7) is driven, arc elevator (3) is rotated, makes lower bracing frame
(6) it is in vertical motion, realizes the height change of class rectangle shield machine；
Simultaneously by drive control unit rotate gear (1), the rack being connected with support frame (6) is driven, makes left and right sidesing supporting frame (6)
Moved horizontally, realize the change width of class rectangle shield machine.
2. the experimental rig that a kind of simulation class rectangle shield segmented according to claim 1 is excavated, it is characterised in that
Connected between two neighboring unit shield machine by rubber Membrane cover.
3. the experimental rig that a kind of simulation class rectangle shield segmented according to claim 1 or 2 is excavated, its feature exists
In being provided with mud guard (4) on the outside of the free gap between two neighboring arc-like sheet.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720268121.3U CN206573306U (en) | 2017-03-20 | 2017-03-20 | It is a kind of to simulate the experimental rig that class rectangle shield segmented is excavated |
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|---|---|---|---|
| CN201720268121.3U CN206573306U (en) | 2017-03-20 | 2017-03-20 | It is a kind of to simulate the experimental rig that class rectangle shield segmented is excavated |
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| CN206573306U true CN206573306U (en) | 2017-10-20 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106840729A (en) * | 2017-03-20 | 2017-06-13 | 浙江大学城市学院 | It is a kind of to simulate the experimental rig that class rectangle shield segmented is excavated |
| CN110082504A (en) * | 2019-05-08 | 2019-08-02 | 国家能源投资集团有限责任公司 | A kind of excavation simulation case apparatus, simulation experiment device and analogue experiment method |
-
2017
- 2017-03-20 CN CN201720268121.3U patent/CN206573306U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106840729A (en) * | 2017-03-20 | 2017-06-13 | 浙江大学城市学院 | It is a kind of to simulate the experimental rig that class rectangle shield segmented is excavated |
| CN110082504A (en) * | 2019-05-08 | 2019-08-02 | 国家能源投资集团有限责任公司 | A kind of excavation simulation case apparatus, simulation experiment device and analogue experiment method |
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