CN112253128A - Full-automatic full-section vertical shield tunneling machine - Google Patents
Full-automatic full-section vertical shield tunneling machine Download PDFInfo
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- CN112253128A CN112253128A CN202010930083.XA CN202010930083A CN112253128A CN 112253128 A CN112253128 A CN 112253128A CN 202010930083 A CN202010930083 A CN 202010930083A CN 112253128 A CN112253128 A CN 112253128A
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- 230000005641 tunneling Effects 0.000 title claims abstract description 49
- 239000002002 slurry Substances 0.000 claims abstract description 45
- 238000007599 discharging Methods 0.000 claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 239000003381 stabilizer Substances 0.000 claims abstract description 6
- 239000003638 chemical reducing agent Substances 0.000 claims description 17
- 239000002689 soil Substances 0.000 claims description 14
- 238000004062 sedimentation Methods 0.000 claims description 13
- 238000005520 cutting process Methods 0.000 claims description 3
- 230000008602 contraction Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 35
- 238000005553 drilling Methods 0.000 abstract description 24
- 238000010276 construction Methods 0.000 abstract description 15
- 239000003921 oil Substances 0.000 description 43
- 230000008569 process Effects 0.000 description 17
- 238000005422 blasting Methods 0.000 description 4
- 239000002893 slag Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010438 granite Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D1/00—Sinking shafts
- E21D1/03—Sinking shafts mechanically, e.g. by loading shovels or loading buckets, scraping devices, conveying screws
- E21D1/06—Sinking shafts mechanically, e.g. by loading shovels or loading buckets, scraping devices, conveying screws with shaft-boring cutters
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D1/00—Sinking shafts
- E21D1/08—Sinking shafts while moving the lining downwards
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D5/00—Lining shafts; Linings therefor
- E21D5/04—Lining shafts; Linings therefor with brick, concrete, stone, or similar building materials
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention relates to the technical field of construction of underground shafts, in particular to a full-automatic full-section vertical shield tunneling machine. The method comprises the following steps: the cutter head is arranged at the lowest part of the shield tunneling machine and is used for tunneling the shield tunneling machine; the main drive is arranged above the cutter head and used for driving the cutter head; the shield stepping device is arranged above the main drive and used for pushing the main drive, the shield stepping device is connected with the duct piece, and the main drive and the cutter head are driven by the shield stepping device; the center rotation is arranged in the middle of the main drive and used for connecting a hydraulic pipeline and a cable; the pipeline servo system is arranged on the ground and used for conveying the hydraulic pipeline and the cable; the mud circulating system is arranged on the ground and used for discharging the dregs out of the well and adjusting the height of the liquid level in the well; the immersed tube guiding system is arranged on the ground and used for supporting and propelling the immersed tube piece; the stabilizer is arranged above the shield in a stepping mode and used for connecting the duct piece with the slurry circulating system. The technical problems that the existing drilling machine sinking method is greatly influenced by geological structures and well forming depth and the well forming quality is poor are solved.
Description
Technical Field
The invention relates to the technical field of construction of underground shafts, in particular to a full-automatic full-section vertical shield tunneling machine.
Background
According to the existing construction method, the shaft construction can be divided into a common shaft sinking method and a drilling machine shaft sinking method. The common shaft sinking method is the most widely applied shaft construction method at present. The method is assisted with the modification of surrounding soil and the construction of an in-well drilling and blasting method in the drilling process of the hard rock stratum. The common shaft sinking method has the defects of complex construction process, high production cost, more operators, high labor intensity, severe construction environment, high potential safety hazard and the like.
Compared with the common shaft sinking method, the shaft sinking method of the drilling machine needs a small amount of even no underground operation personnel, really achieves the purposes of 'not sinking the well but digging the well', and solves the safety problem of the constructors. The drilling method of the drilling machine does not need blasting, so that the disturbance to the soil body is reduced to the maximum extent, and the pollution caused by blasting is avoided. Meanwhile, compared with the common shaft sinking method, the shaft sinking method of the drilling machine can be more suitable for various complicated geological structures.
However, the current drilling method is greatly influenced by geological structures and well-forming depth, and the well-forming quality is poor.
Disclosure of Invention
Technical problem to be solved
In view of the defects and shortcomings of the prior art, the invention provides a full-automatic full-section vertical shield tunneling machine, which solves the technical problems that the existing drilling machine well drilling method is greatly influenced by geological structures and well forming depths and the well forming quality is poor.
(II) technical scheme
In order to achieve the purpose, the invention adopts the main technical scheme that:
the embodiment of the invention provides a full-automatic full-section vertical shield tunneling machine, which comprises:
the cutter head is arranged at the lowest part of the shield tunneling machine and is used for tunneling the shield tunneling machine;
the main drive is arranged above the cutter head and used for driving the cutter head;
the shield stepping device is arranged above the main drive and used for pushing the main drive, the shield stepping device is connected with the duct piece, and the main drive and the cutter head are driven by the shield stepping device;
the stabilizer is arranged above the shield stepping and used for connecting the duct piece with the slurry circulating system;
the mud circulating system is arranged on the ground and used for discharging the dregs out of the well and adjusting the height of the liquid level in the well;
and the immersed tube guiding system is arranged on the ground and used for supporting and propelling the immersed tube piece.
Optionally, the cutter head comprises a cutter head body and a telescopic arm;
the telescopic arm is circumferentially arranged on the cutter head body;
one end of the telescopic arm is provided with a telescopic oil cylinder for driving the telescopic arm to stretch and reduce the diameter;
the other end of the telescopic arm is provided with a spherical gear hob which is used for cutting soil bodies along with the rotation of the cutter head.
Optionally, a slurry suction port for discharging the residue soil in the well is arranged on the cutter head body.
Optionally, the shield stepping device comprises an upper supporting shoe group, a lower supporting shoe group and a stepping oil cylinder for connecting the upper supporting shoe group and the lower supporting shoe group, wherein the stepping oil cylinder is used for driving the upper supporting shoe group and the lower supporting shoe group to move up and down;
the shoe stretcher further comprises a guide rod penetrating through the upper shoe supporting group and the lower shoe supporting group, and the guide rod is used for being connected with a main drive.
Optionally, the upper shoe supporting group and the lower shoe supporting group both comprise a plurality of supporting shoes, the supporting shoes are detachably and fixedly connected with a supporting shoe oil cylinder through a connecting rod, and the supporting shoe oil cylinder is used for controlling radial extension and retraction of the supporting shoes.
Optionally, a feed cylinder for providing thrust to the cutter head is arranged on the lower supporting shoe group.
Optionally, the slurry circulation system comprises a grouting pipeline, a slurry discharge pipeline and a slurry sedimentation tank;
a grouting pump is arranged on the grouting pipeline, one end of the grouting pipeline is connected with a wellhead, and the other end of the grouting pipeline is connected with a mud sedimentation tank;
the slurry discharging pipeline is provided with a slurry discharging pump, one end of the slurry discharging pipeline is connected with the cutter head, and the other end of the slurry discharging pipeline is connected with the slurry sedimentation tank.
Optionally, the sinking tube guiding system comprises a plurality of sinking tube cylinders and a plurality of guiding brackets;
the plurality of immersed tube oil cylinders are circumferentially arranged along the outer wall of the duct piece, the upper parts of the immersed tube oil cylinders are provided with fixing pins for clamping the outer wall of the duct piece, and the duct piece is driven to sink through the extension and retraction of the immersed tube oil cylinders;
a plurality of guide supports are evenly arranged on the outer wall of the duct piece along the circumferential direction, immersed tube oil cylinders are arranged in the guide supports, and fixing pins on the upper portions of the immersed tube oil cylinders are connected with the guide supports in a sliding mode.
Optionally, the main drive comprises a main drive hydraulic motor, a main drive reducer, and a main drive bearing;
the main driving hydraulic motor is connected with the main driving speed reducer and drives the main driving speed reducer to rotate through the main driving hydraulic motor;
an output shaft gear of the main drive speed reducer is meshed with a main drive internal gear of the main drive bearing so as to drive the main drive bearing to rotate;
the lower part of the main driving bearing is connected with the cutter head, and the main driving bearing is driven to rotate through the main driving speed reducer so as to drive the cutter head to tunnel.
Optionally, the method further comprises:
the pipeline servo system is arranged on the ground and used for conveying hydraulic pipelines and cables, and comprises a pipeline frame body vertically arranged on the ground, and the hydraulic pipelines and the cables which are arranged on the upper part of the pipeline frame body;
and a central swivel (9) arranged in the middle of the main drive for connecting the hydraulic line and the cable.
(III) advantageous effects
The full-automatic full-section vertical shield machine provided by the invention can be suitable for vertical shaft construction of geological structures and well-forming depths. The parallel operation of drilling and supporting can be realized in the construction process, the well forming quality is high, the well drilling and the well falling are really realized, and the safety problem of constructors is fundamentally solved. Meanwhile, the equipment does not need to be blasted in the tunneling process, so that the disturbance to the soil body is reduced to the maximum extent and the pollution caused by blasting is avoided.
The full-automatic full-section vertical shield tunneling machine is convenient to disassemble and assemble and simple to operate. The hydraulic and electric control systems are all on the ground, so that the weight of the machine body equipment is reduced to the maximum extent. And a duct piece protecting wall is arranged in the tunneling process, so that the vertical shaft is safe, the self-stability of the shaft wall is high, and the tunneling depth is not limited. The telescopic arm can realize the diameter changing of the cutter head and has high flexibility. The shield can support the pipe sheet and support the counter force and offset the torque of the shield machine through the alternate extension and retraction of the upper and lower supporting shoe sets in the shield stepping process.
Drawings
FIG. 1 is a schematic structural diagram of a full-automatic full-section vertical shield tunneling machine provided by the present invention;
FIG. 2 is a bottom view of the cutter head provided by the present invention;
FIG. 3 is a cross-sectional view taken along A-A of FIG. 2;
FIG. 4 is a schematic view of a shield stepping structure according to the present invention;
FIG. 5 is a front view of the shield step provided by the present invention;
FIG. 6 is a top view of the shield step provided by the present invention;
FIG. 7 is a front view of the sinking tube guiding system provided by the present invention;
fig. 8 is a top view of the sinking tube guiding system according to the present invention.
[ description of reference ]
1: a cutter head; 101: a cutter head body; 102: a telescopic arm; 103: a telescopic oil cylinder; 104: a spherical tooth hob; 105: a pulp sucking port;
2: main driving; 201: a main drive hydraulic motor; 202: a main drive reducer; 203: a main drive bearing;
3: shield stepping; 301: an upper boot support group; 302: a lower support boot set; 303: a guide bar; 304: a stepping oil cylinder; 305: a feed cylinder; 306: a connecting rod; 307: a shoe supporting oil cylinder; 308: supporting the boot;
4: a pipeline servo system;
5: a slurry circulation system;
6: a sink pipe guidance system; 601: a immersed tube oil cylinder; 602: a guide bracket; 603: a fixing pin;
7: a stabilizer;
8: a duct piece;
9: the center is rotated.
Detailed Description
For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings. As used herein, the terms "upper", "lower", and the like are used with reference to the orientation of FIG. 1.
The drilling method of the drilling machine has wide application in vertical shaft construction.
A novel vertical shaft drilling machine based on high-voltage pulse discharge-mechanical combined rock breaking is provided in a related embodiment, a cutter head of the vertical shaft drilling machine breaks rock by adopting the coupling effect of an electrode of a high-voltage pulse discharge control system and mechanical cutters such as a hob and the like, and the tunneling speed is adjusted by matching with a main driving rotating speed and a slag carrying speed of a slag discharging system. The shaft drilling machine reduces the probability of cutter abrasion, improves the drilling efficiency, and reduces the noise and vibration level. However, the technology is only suitable for high-hardness geological structures such as granite, basalt and the like, and the hob is easy to stick on soft and clay stratums and is not suitable for water-bearing stratums and stratums with poor self-stability.
In another related embodiment, the full-section vertical shaft drilling machine device integrating well, slag discharging and supporting into a whole is provided, and can be used for large vertical shaft construction of coal mines and the like. Different processes are integrated by the equipment, so that the working efficiency is improved, and the construction cost is reduced. However, when the material transportation system works underground, the maintenance, the lifting and the operation are inconvenient; the sealing requirement degree of the well wall supporting system is high, the tunneling efficiency is greatly reduced in the process of wall protection cast-in-place concrete, and the danger coefficient is increased along with the increase of the tunneling depth.
In a third related embodiment, the vertical shaft shield machine is provided, and soil cut by the cutter head is uniformly mixed with mud and then discharged through a slurry pump. The tunneling of the equipment is realized by pushing a propulsion system on the duct piece assembled by the duct piece assembling machine. The equipment is similar to a common shield tunneling machine well forming mode, and can form the whole section of a vertical shaft at one time. However, after the whole equipment is finished, the underground splitting equipment needs to be lifted out of the well in a split mode. The equipment has no well wall support and is not suitable for the stratum with poor self-stability. Meanwhile, no anti-deflection measure is provided in the tunneling process, and the well forming quality is not easy to guarantee.
In a fourth related embodiment, the shaft drilling machine adopting the well drilling method is provided, and adopts wellhead and underground dual-drive tunneling and gas lift reverse circulation deslagging. The vertical shaft drilling machine improves the overall stability and the tunneling capability of the equipment, but is not suitable for stratum construction with poor self-stability because no special wall protection process is adopted in the tunneling process.
In order to better understand the technical solutions of the present application, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Examples
As shown in fig. 1, the embodiment provides a full-automatic full-face vertical shield tunneling machine, which includes a cutter head 1 disposed at the lowermost portion of the shield tunneling machine, where the cutter head 1 is used for tunneling the shield tunneling machine.
As shown in fig. 2 to 3, the cutter head 1 includes a cutter head body 101 and a telescopic arm 102. The telescopic arm 102 is circumferentially arranged on the cutter head body 101, one end of the telescopic arm 102 is provided with a telescopic oil cylinder 103 for driving the telescopic arm 102 to stretch and reduce, and the other end of the telescopic arm 102 is provided with a spherical gear hob 104 for cutting soil along with the rotation of the cutter head 1. The telescopic arm 102 changes the telescopic length under the driving action of the telescopic oil cylinder 103 so as to adapt to the well bodies with different diameters. The spherical tooth hob 104 is connected with the telescopic arm 102 in a forward mounting mode, so that stability in the tunneling process is improved, and disassembly and assembly are facilitated. The cutter head body 101 is also provided with a slurry suction port 105 for discharging the residue in the well.
The main drive 2 includes a main drive hydraulic motor 201 provided at an upper portion of the main drive 2. The lower part of the main drive hydraulic motor 201 is in key connection with the main drive speed reducer 202, and the main drive hydraulic motor 201 drives the main drive speed reducer 202 to rotate. The shell of the main drive speed reducer 202 is connected with the outer ring of the main drive bearing 203 through a drive frame (not shown in the figure), the drive frame is connected with the upper supporting shoe group 301 of the shield stepping 3, and the shield stepping 3 drives the main drive 4 to move upwards. The driving frame is a steel structure frame, so that the main driving 2 is integrally more stable. The gear on the lower output shaft of the main drive reducer 202 meshes with a main drive internal gear (not shown) of the main drive bearing 203, and the main drive bearing 203 is driven to rotate by the rotation of the reducer 202. The lower part of the main driving bearing 203 is fixedly connected with the cutter head body 101 of the cutter head 1, and the main driving bearing 203 is driven to rotate through the main driving speed reducer 202, so that the cutter head 1 is driven to rotate. The main drive bearing 203 is connected with an oil cylinder seat, and the oil cylinder seat is used for supporting the main drive bearing 203 and propelling the main drive bearing 203 to move downwards so as to push the cutter head 1 to tunnel downwards.
As shown in fig. 4 to 6, the shield step 3 includes an upper shoe set 301 and a lower shoe set 302 arranged up and down, and the upper shoe set 301 and the lower shoe set 302 alternately extend. The upper shoe supporting set 301 and the lower shoe supporting set 302 both comprise a plurality of shoe supporting 308, the shoe supporting 308 is detachably and fixedly connected with a shoe supporting cylinder 307 through a connecting rod 306, and the shoe supporting cylinder 307 is used for controlling the radial expansion and contraction of the shoe supporting 308. The upper shoe supporting set 301 and the lower shoe supporting set 302 are detachably and fixedly connected through a guide rod 303, the upper shoe supporting set 301 and the lower shoe supporting set 302 move up and down under the driving of a stepping oil cylinder 304, the shield is lifted by stepping 3, and therefore the main drive 2 is driven to move up and down. The lower shoe set 302 is provided with a feed cylinder 305, and the feed cylinder 305 is used for providing thrust to the cutter head 1.
In specific implementation, a cylinder seat at the upper end of the stepping cylinder 304 is fixed at the lower part of the upper shoe group 301, and a cylinder seat at the lower end of the stepping cylinder 304 is fixed at the upper part of the lower shoe group 302. The supporting shoe 308 is supported to the inner diameter of the segment 8 through the connecting rod 306 and the supporting shoe oil cylinder 307, so that the shield machine is supported in a counter force and a torque counteracting effect, and at the moment, the stepping oil cylinder 304 is in a compression state. The shoe 308 remains stationary during the shield tunneling process. After the tunneling of the device is completed, a shoe supporting oil cylinder 307 which is annularly connected with a shoe supporting 308 on the upper shoe supporting group 301 contracts to drive the upper shoe supporting group 301 to contract in the radial direction, then the stepping oil cylinder 304 extends out to drive the upper shoe supporting group 301 to move upwards in the axial direction, and when the stepping oil cylinder 304 rises to the highest point, the shoe supporting oil cylinder 307 drives the shoe supporting 308 on the upper shoe supporting group 301 to radially support and fix on the duct piece 8; the supporting shoe oil cylinder 307 connected with the supporting shoe 308 on the lower supporting shoe group 302 contracts to drive the lower supporting shoe group 302 to contract in the radial direction, then the stepping oil cylinder 304 contracts to drive the lower supporting shoe group 302 to move upwards in the axial direction, and the supporting shoe oil cylinder 307 drives the supporting shoe 308 on the lower supporting shoe group 302 to expand in the radial direction and fix on the duct piece 8, so that one-time lifting is completed. The previous operation is then resumed until the shield machine is lifted to the surface.
The line servo 4 includes: the pipeline support body and set up hydraulic line and cable on pipeline support body upper portion, hydraulic line and cable pass central gyration 5 and are connected with blade disc 1, and hydraulic line and cable still are connected with main drive 2 and shield step-by-step 3 respectively for provide power and carry liquid. The upper part of the pipeline frame body is provided with a hoist for hoisting the hydraulic pipeline and the cable, the hoist can circularly move on the frame on the upper part of the pipeline frame body and can slide along with the movement of the hydraulic pipeline and the cable, and then the hydraulic pipeline and the cable are consistent with the sinking rhythm of the shield tunneling machine. The chain electric hoist or the manual hoist can be selected as the hoist in the invention.
The mud circulating system 5 comprises a grouting pipeline, a mud discharging pipeline and a mud sedimentation tank, wherein a grouting pump is arranged on the grouting pipeline, one end of the grouting pipeline is connected with a wellhead, the other end of the grouting pipeline is connected with the mud sedimentation tank, and the grouting pipeline is used for conveying mud in the mud sedimentation tank into a well; the slurry discharging pipeline is provided with a slurry discharging pump, one end of the slurry discharging pipeline is connected with the slurry sucking port 105, the other end of the slurry discharging pipeline is connected with the slurry sedimentation tank, and the slurry discharging pipeline is used for discharging slurry in the well and residue soil cut by the cutter disc to the slurry sedimentation tank. The mud sedimentation tank is used for settling dregs and preparing mud. The slurry circulating system 5 can ensure the slag discharge amount and the slurry liquid level height in the well by adjusting the rotating speed of the grouting pump and the slurry discharging pump so as to reduce the soil layer pressure borne by the duct piece 8.
The immersed tube guiding system 6 is arranged on the ground and is used for supporting and propelling the tube piece 8. Specifically, the immersed tube guiding systems 6 are arranged at the ground inlet, divided into two groups, and alternately arranged in the circumferential direction of the outer wall of the tube piece 8. As shown in fig. 7-8, each set of immersed tube guides consists of an immersed tube cylinder 601 and a fixed pin 603. The immersed tube oil cylinder 601 is responsible for lifting the tube piece 8, and the fixing pin 603 is responsible for connecting with the tube piece 8. Two sets of immersed tube direction alternate use, when a set of immersed tube direction sinks section of jurisdiction 8 to fixed position, the immersed tube hydro-cylinder 601 of another group's immersed tube direction rises to the peak to be connected with section of jurisdiction 8 through fixed pin 603, then section of jurisdiction 8 can continue to sink, thereby realizes section of jurisdiction 8's step function.
In this embodiment, the immersed tube guiding system 6 includes twelve immersed tube cylinders 601 and four guiding brackets 602, and the four guiding brackets 602 are symmetrically disposed in the front, rear, left, and right directions of the duct piece 8. Twelve immersed tube oil cylinders 601 are arranged into two groups along the circumferential direction of the outer wall of the duct piece 8, the two groups of immersed tube oil cylinders 601 are arranged at intervals, the upper part of each immersed tube oil cylinder 601 is provided with a fixing pin 603 for clamping the outer wall of the duct piece 8, and the duct piece 8 is driven to sink through the extension and retraction of the immersed tube oil cylinders 601. A immersed tube oil cylinder 601 is also arranged in the guide bracket 602, and a fixing pin 603 on the upper part of the immersed tube oil cylinder 601 is connected with the guide bracket 602 in a sliding manner so as to guide the immersed tube oil cylinder 601 in the guide bracket 602.
During the concrete implementation, two sets of immersed tube hydro-cylinders 601 do not work simultaneously, insert the fixed pin 603 on a set of immersed tube hydro-cylinder 601 upper portion in the pinhole of section of jurisdiction 8 outer wall, when this a set of immersed tube hydro-cylinder 601 sinks section of jurisdiction 8 to a certain position, rise another set of immersed tube hydro-cylinder 601 to the peak to be connected with section of jurisdiction 8 through fixed pin 603, then will a set of immersed tube hydro-cylinder 601's fixed pin 83 before extract, a set of immersed tube hydro-cylinder 601 of back continues to drive section of jurisdiction 8 and sinks, thereby realizes section of jurisdiction 8's step function.
The stabilizer 7 is arranged above the shield step-by-step part 3 and used for connecting the duct piece 8 with a grouting pipeline in the slurry circulating system 5 so as to reduce the influence of the vibration of the shield machine on the grouting pipeline.
The duct piece 8 sinks slowly along with the driving of the shield machine under the action of the immersed tube guiding system 6. The duct piece 8 is provided with grouting holes (not shown in the figure) for grouting slurry into a gap between the duct piece 8 and a well wall, so that the self-stability of the well wall is improved, and the lateral soil pressure and water pressure of the duct piece 8 are reduced. Meanwhile, the slurry can reduce the friction resistance between the duct piece 8 and the well wall when sinking, and the duct piece 8 is used as the primary lining of the vertical well to be left in the well after the tunneling is finished.
The central swivel 9 is connected to the middle of the main drive 2 for connection of hydraulic lines and cables. The centre turn 5 is an existing device. Because hydraulic oil and a power supply on the cutter head need to be conveyed from the well, and meanwhile, the power supply on the well and the cutter head rotate relatively, the power supply of the relative movement device can be smoothly conveyed by designing the central rotation 9.
The specific working process of the invention is as follows:
and after the main body equipment is put into the well, the grouting pipeline and the main body equipment are connected and completed, and meanwhile, the grouting pipeline is fixed by the stabilizer 7. And starting a slurry circulating system to establish slurry circulation between the inside of the well and the slurry sedimentation tank, and simultaneously adjusting the height of the liquid level in the well.
The liquid level height in the well is adjusted at any time through a slurry circulating system in the tunneling process, so that the liquid level height is basically kept at the same liquid level height as the initial height. The cutter head 1 is driven by the main drive 2 to carry out tunneling, soil cut by the cutter head is uniformly mixed with mud in the well along with the rotation of the cutter head 1, and the soil is discharged along with the mud sucking port 105. And the residue soil is settled in the slurry settling tank, and the settled slurry is re-injected into the well through the grouting pipeline after the specific gravity of the settled slurry is adjusted. Segment 8 is controlled to move downwardly by a immersed tube cylinder 601 of immersed tube guiding system 6. When the drilling of the shield machine is completed, the shield machine is lifted to the ground through the shield stepping 3.
In the lifting process, a shoe supporting oil cylinder 307 which is annularly connected with the shoe supporting 308 on the upper shoe supporting group 301 contracts to drive the upper shoe supporting group 301 to contract in the radial direction, then the stepping oil cylinder 304 extends out to drive the upper shoe supporting group 301 to move upwards in the axial direction, and when the stepping oil cylinder 304 rises to the highest point, the shoe supporting oil cylinder 307 drives the shoe supporting 308 on the upper shoe supporting group 301 to radially support and fix on the duct piece 8; the supporting shoe oil cylinder 307 connected with the supporting shoe 308 on the lower supporting shoe group 302 contracts to drive the lower supporting shoe group 302 to contract in the radial direction, then the stepping oil cylinder 304 contracts to drive the lower supporting shoe group 302 to move upwards in the axial direction, and the supporting shoe oil cylinder 307 drives the supporting shoe 308 on the lower supporting shoe group 302 to expand in the radial direction and fix on the duct piece 8, so that one-time lifting is completed. The previous operation is then resumed until the shield machine is lifted to the surface.
The full-automatic full-section vertical shield machine provided by the invention can be suitable for the vertical shaft construction of various stratums and ground conditions. The hydraulic and electric control system of the shield machine is completely arranged on the ground, so that the weight of machine body equipment is reduced to the maximum extent; the duct piece protecting wall is installed in the tunneling process, the vertical shaft is safe, the self-stability of the shaft wall is high, and the tunneling depth is not limited; the telescopic arm on the cutter head can realize the diameter change of the cutter head, and the cutter head has high degree of freedom, flexibility and reliability; the shield stepping system, the pipeline servo system and the immersed tube guiding system are used for realizing the automatic operation of the shield equipment without manual operation in a well.
In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; either as communication within the two elements or as an interactive relationship of the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, a first feature may be "on" or "under" a second feature, and the first and second features may be in direct contact, or the first and second features may be in indirect contact via an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lower level than the second feature.
In the description herein, the description of the terms "one embodiment," "some embodiments," "an embodiment," "an example," "a specific example" or "some examples" or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are illustrative and not restrictive, and that those skilled in the art may make changes, modifications, substitutions and alterations to the above embodiments without departing from the scope of the present invention.
Claims (10)
1. The utility model provides a perpendicular shield of full-automatic full section constructs machine which characterized in that includes:
the cutter head (1) is arranged at the lowest part of the shield machine and is used for tunneling the shield machine;
a main drive (2) arranged above the cutter head (1) and used for driving the cutter head (1);
the shield stepping device is arranged above the main drive (2) and used for pushing the main drive (2), the shield stepping device (3) is connected with a duct piece (8), and the main drive (2) and the cutter head (1) are driven through the shield stepping device (3);
a stabilizer (7) arranged above the shield step (3) and used for connecting the duct piece (8) with the slurry circulating system (5);
a mud circulating system (5) which is arranged on the ground and used for discharging the dregs out of the well and adjusting the height of the liquid level in the well;
and the immersed tube guiding system (6) is arranged on the ground and used for supporting and propelling the immersed tube piece (8).
2. The full-automatic full-face vertical shield tunneling machine according to claim 1, wherein the cutterhead (1) includes a cutterhead body (101) and a telescopic arm (102);
the telescopic arm (102) is arranged on the cutter head body (101) in the circumferential direction;
one end of the telescopic arm (102) is provided with a telescopic oil cylinder (103) for driving the telescopic arm (102) to stretch and reduce diameter;
the other end of the telescopic arm (102) is provided with a spherical gear hob (104) which is used for cutting soil body along with the rotation of the cutterhead (1).
3. The full-automatic full-face vertical shield tunneling machine according to claim 2, wherein the cutterhead body (101) is provided with a slurry suction port (105) for discharging the residue in the well.
4. The full-automatic full-section vertical shield tunneling machine according to claim 1, wherein the shield stepping (3) comprises an upper supporting shoe set (301), a lower supporting shoe set (302) and a stepping cylinder (304) connecting the upper supporting shoe set (301) and the lower supporting shoe set (302), and the stepping cylinder (304) is used for driving the upper supporting shoe set (301) and the lower supporting shoe set (302) to move up and down;
the shoe stretcher is characterized by further comprising a guide rod (303) penetrating through the upper shoe supporting group (301) and the lower shoe supporting group (302), wherein the guide rod (303) is used for being connected with the main drive (2).
5. The full-automatic full-face vertical shield tunneling machine according to claim 4, wherein each of the upper and lower supporting shoe sets (301, 302) comprises a plurality of supporting shoes (308), the supporting shoes (308) are detachably and fixedly connected with supporting shoe cylinders (307) through connecting rods (306), and the supporting shoe cylinders (307) are used for controlling the radial expansion and contraction of the supporting shoes (308).
6. The fully automatic full face vertical shield tunneling machine according to claim 5, characterized in that the lower shoe set (302) is provided with a feed cylinder (305) for providing thrust to the cutter head (1).
7. The fully automatic full face vertical shield tunneling machine according to claim 1, wherein the slurry circulation system (5) comprises a grouting pipeline, a slurry discharge pipeline and a slurry sedimentation tank;
a grouting pump is arranged on the grouting pipeline, one end of the grouting pipeline is connected with a wellhead, and the other end of the grouting pipeline is connected with a mud sedimentation tank;
a slurry discharging pump is arranged on the slurry discharging pipeline, one end of the slurry discharging pipeline is connected with the cutter head (1), and the other end of the slurry discharging pipeline is connected with the mud sedimentation tank.
8. The fully automatic full face vertical shield tunneling machine according to claim 1, wherein the immersed tube guiding system (6) comprises a plurality of immersed tube cylinders (601) and a plurality of guiding brackets (602);
the plurality of immersed tube oil cylinders (601) are circumferentially arranged along the outer wall of the duct piece (8), the upper parts of the immersed tube oil cylinders (601) are provided with fixing pins (603) for clamping the outer wall of the duct piece (8), and the duct piece (8) is driven to sink by the extension and retraction of the immersed tube oil cylinders (601);
a plurality of guide supports (602) are evenly arranged on the outer wall of the duct piece (8) along the circumferential direction, a immersed tube oil cylinder (601) is arranged in each guide support (602), and a fixing pin (603) on the upper portion of each immersed tube oil cylinder (601) is connected with each guide support (602) in a sliding mode.
9. The fully automatic full face vertical shield tunneling machine according to claim 1, characterized by the main drive (2) comprising a main drive hydraulic motor (201), a main drive reducer (202), and a main drive bearing (203);
the main driving hydraulic motor (201) is connected with the main driving speed reducer (202), and the main driving hydraulic motor (201) drives the main driving speed reducer (202) to rotate;
an output shaft gear of the main drive speed reducer (202) is meshed with a main drive internal gear of the main drive bearing (203) to drive the main drive bearing (203) to rotate;
the lower part of the main driving bearing (203) is connected with the cutter head (1), and the main driving bearing (203) is driven to rotate through the main driving speed reducer (202), so that the cutter head (1) is driven to tunnel.
10. The fully automatic full face vertical shield tunneling machine of claim 1, further comprising:
the pipeline servo system (4) is arranged on the ground and used for conveying hydraulic pipelines and cables, and the pipeline servo system (4) comprises a pipeline frame body vertically arranged on the ground and the hydraulic pipelines and the cables arranged on the upper portion of the pipeline frame body;
and a central swivel (9) arranged in the middle of the main drive (2) for connecting the hydraulic line and the cable.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010930083.XA CN112253128B (en) | 2020-09-07 | 2020-09-07 | Full-automatic full-section vertical shield tunneling machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010930083.XA CN112253128B (en) | 2020-09-07 | 2020-09-07 | Full-automatic full-section vertical shield tunneling machine |
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| CN112253128B CN112253128B (en) | 2022-09-30 |
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| CN113153328A (en) * | 2021-04-08 | 2021-07-23 | 江苏锐成机械有限公司 | Axial vacuum slag-discharging type vertical tunneling head |
| CN113356857A (en) * | 2021-07-28 | 2021-09-07 | 中国铁建重工集团股份有限公司 | Shaft drilling machine |
| CN113446007A (en) * | 2021-08-04 | 2021-09-28 | 中铁工程装备集团有限公司 | Propulsion system for open caisson excavation and open caisson excavation method |
| CN113914777A (en) * | 2021-10-14 | 2022-01-11 | 中铁工程装备集团有限公司 | Raise boring machine with synchronous digging and supporting and construction method thereof |
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