CN108756905B - Shield machine and double-shield support shoe device thereof - Google Patents
Shield machine and double-shield support shoe device thereof Download PDFInfo
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- CN108756905B CN108756905B CN201810797071.7A CN201810797071A CN108756905B CN 108756905 B CN108756905 B CN 108756905B CN 201810797071 A CN201810797071 A CN 201810797071A CN 108756905 B CN108756905 B CN 108756905B
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- 230000005641 tunneling Effects 0.000 claims abstract description 33
- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 230000009977 dual effect Effects 0.000 claims description 11
- 238000010276 construction Methods 0.000 abstract description 23
- 230000007704 transition Effects 0.000 description 14
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 11
- 239000011435 rock Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0607—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield being provided with devices for lining the tunnel, e.g. shuttering
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/40—Devices or apparatus specially adapted for handling or placing units of linings or supporting units for tunnels or galleries
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0621—Shield advancing devices
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a double-shield support shoe device for assisting shield machine stepping, which comprises: the pipe replacing sheet ring is used for being matched and propped against a thrust cylinder in the shield machine; the frame is arranged behind the segment ring; the shoe supporting mechanism comprises a positioning plate fixedly connected to the frame, oppositely arranged shoe supporting plates rotatably connected to the positioning plate and a telescopic part connected between the oppositely arranged shoe supporting plates, and the telescopic part drives the shoe supporting plates to move towards or away from the central line of the double-shield shoe supporting device through telescopic; and the connecting piece is connected between the tube-replacing sheet ring and the frame. Under the construction environment without assembling the duct pieces, the double-shield supporting shoe device is arranged in the shield machine, and the supporting shoe mechanism supports the hole wall tightly, so that pushing counter force is provided for the front pushing oil cylinder to enable the shield machine to tunnel, the construction cost can be reduced, and the tunneling speed can be improved. The invention also discloses a shield machine comprising the double-shield supporting shoe device, and the use of the double-shield supporting shoe device can reduce the construction cost and improve the tunneling speed.
Description
Technical Field
The invention relates to the field of tunnel excavation construction machinery, in particular to a double-shield supporting shoe device. In addition, the invention also relates to a shield machine comprising the double-shield support shoe device.
Background
In the construction tunneling process of the existing shield machine, segments are assembled along a tunnel to provide counter force for advancing or stepping of a host, and the pushing mode of the shield machine can be called a segment pushing mode.
However, when the shield machine is used for pushing the pipe piece mode under the conditions of small space of the starting well of the shield machine, difficult material transportation and the like and when a station which does not necessarily require the lining of the pipe piece is constructed, the shield machine is used for pushing the pipe piece mode, the starting preparation work and the time of the shield are long, the tunneling speed is greatly reduced in the pipe piece assembling process, and the construction cost is increased.
Therefore, how to increase the tunneling speed and reduce the construction cost is a technical problem that needs to be solved by those skilled in the art at present.
Disclosure of Invention
In view of the above, the invention aims to provide a double-shield supporting shoe device for assisting the stepping of a shield tunneling machine, which can reduce the construction cost of the shield tunnel and improve the tunneling speed of the shield tunneling machine. Another object of the present invention is to provide a shield machine including the above-mentioned double shield support shoe device, which can reduce construction costs and increase tunneling speed.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a dual shield support shoe apparatus for assisting shield machine stepping, comprising:
the pipe replacing sheet ring is used for being matched and propped against a thrust cylinder in the shield machine;
the rack is arranged behind the tube replacing sheet ring;
the shoe supporting mechanism comprises a positioning plate fixedly connected to the frame, oppositely arranged shoe supporting plates rotatably connected to the positioning plate and telescopic components connected between the oppositely arranged shoe supporting plates, and the telescopic components drive the shoe supporting plates to move towards or away from the central line of the double-shield shoe supporting device through telescopic operation;
and the connecting piece is connected between the segment ring and the frame.
Preferably, the locating plate is hinged with a dragging oil cylinder connected with a joist in the shield machine.
Preferably, the shoe supporting plate is provided with a connecting hole, and the connecting hole is sleeved on the positioning plate in a sliding way.
Preferably, the positioning plate is disposed in a lateral direction.
Preferably, the plurality of arc steel pipe sheets are sequentially arranged around the central line to form an annular pipe-substituting sheet ring, and adjacent arc steel pipe sheets are detachably connected.
Preferably, the connecting piece is a gesture oil cylinder, the front end of the gesture oil cylinder is hinged with the tube-substituting sheet ring, and the rear end of the gesture oil cylinder is hinged with the frame.
Preferably, the telescopic component is a tightening cylinder, and the opposite shoe supporting plates are respectively hinged to two ends of the tightening cylinder.
Preferably, the connecting piece is detachably connected with the frame, the connecting piece and the pipe replacing sheet ring respectively.
The shield machine comprises a shield body and further comprises:
the duct piece splicing machine is detachably arranged in the shield body;
the double-shield shoe supporting device is the double-shield shoe supporting device according to any one of the above.
The double-shield shoe supporting device provided by the invention adopts a modularized design and comprises a front part, a middle part and a rear part which are formed by a segment ring, a connecting piece and a shoe supporting mechanism. When the shield machine adopts a pipe-slice-free mode to push in stable surrounding rocks, the double-shield support shoe device is placed in the shield machine, the rear end of a pushing cylinder in the shield machine is propped against the front end of a pipe slice ring, the support shoe plate of the double-shield support shoe device placed at the tail of a host machine is tightly supported on the surrounding hole wall under the pushing of a telescopic part, and the friction force between the support shoe plate and the surrounding rocks is used for bearing the pushing force and torque of the pushing cylinder at the front end of the pipe slice ring. When the propulsion oil cylinder drives the host machine and the rear supporting system to finish tunneling at a preset distance, the telescopic part moves reversely, and the shoe supporting plate moves close to the central line of the double-shield shoe supporting device. Under the construction environment that need not to assemble the section of jurisdiction, only need prop the boots device with this kind of dual shield and set up in the shield machine, prop the boots mechanism and prop the wall of a hole tightly thereby provide the top counter force for anterior thrust cylinder, make the shield machine still can carry out the tunnelling under the condition of not assembling the section of jurisdiction, not only can adapt to the construction environment of clay, soft rock or certain intensity hard rock, construction environment such as stable country rock can also be adapted to, thereby can enlarge the geological range that the shield machine adapts to, greatly reduced shield tunnel construction cost, reduce the shield simultaneously and start preparation work and time, can improve the tunnelling speed of shield machine. In addition, when the shoe supporting plate moves under the drive of the telescopic component, the positioning plate can provide a positioning fulcrum for the shoe supporting plate, so that the shoe supporting plate can rotate around the corresponding fulcrum, the relative position relationship between the shoe supporting plate and the frame can be determined, and the motion stability of the shoe supporting plate can be improved.
The shield machine comprising the double-shield supporting shoe device can reduce construction cost and improve tunneling speed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front view of a dual shield support boot apparatus provided by the present invention;
FIG. 2 is a cross-sectional view of a dual shield support shoe apparatus provided by the present invention;
FIG. 3 is a left side view of a dual shield support shoe apparatus provided by the present invention;
FIG. 4 is a schematic diagram of the shield tunneling machine in a segment-based propulsion mode according to the present invention;
FIG. 5 is a schematic diagram of a shield tunneling machine in the present invention when splicing transition ring segments;
FIG. 6 is a schematic diagram of a shield machine of the present invention when a dual shield support shoe assembly is installed;
FIG. 7 is a schematic diagram of the shield tunneling machine of the present invention when the double shield support shoe device is removed and the transition ring segment is assembled;
fig. 8 is a schematic diagram of the shield tunneling machine in the present invention in the reentry segment propulsion mode.
In fig. 1 to 8: the device comprises a 1-segment ring, a 101-arc steel pipe sheet, a 102-connecting part, a 2-gesture oil cylinder group, a 201-gesture oil cylinder, a 3-frame, a 4-supporting shoe mechanism, a 401-supporting shoe plate, a 4011-left supporting shoe plate, a 4012-right supporting shoe plate, a 402-supporting oil cylinder, a 403-positioning plate, a 5-dragging oil cylinder, a 6-cutter disc, a 7-shield body, an 8-propelling oil cylinder, a 9-main drive, a 10-joist, a 11-segment erector, a 12-screw conveyor, 13-surrounding rock, 14-wall back filling materials, 15-tunnel segments, 1501-segment blocks, a 16-back matching system, 17-trailer rollers, 18-transition ring segments, 19-anchor rods, 20-water stop rings and 21-double-shield supporting shoe devices.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a double-shield supporting shoe device for assisting a shield machine in stepping, which can reduce the construction cost of a shield tunnel and improve the tunneling speed of the shield machine. The invention further provides a shield machine comprising the double-shield supporting shoe device, and the use of the double-shield supporting shoe device can reduce construction cost and improve tunneling speed.
In a specific embodiment of the dual shield shoe supporting device provided by the invention, please refer to fig. 1 to 3, which comprises a tube segment ring 1, a frame 3, a shoe supporting mechanism 4 and a connecting piece connected between the tube segment ring 1 and the frame 3. The frame 3 is arranged behind the segment ring 1. The segment ring 1 is used for being matched and propped against a thrust cylinder 8 in the shield machine. The shoe mechanism 4 includes a positioning plate 403 fixedly attached to the frame 3, oppositely disposed shoe plates 401 rotatably attached to the positioning plate 403, and a telescopic member attached between the oppositely disposed shoe plates 401. The shape of the positioning plate 403 may be set according to practical needs, and is preferably a flat plate-like structure or a rod-like structure. The telescopic component drives the shoe supporting plate 401 to move towards or away from the central line of the double-shield shoe supporting device through telescopic action. Wherein the center line is a center line extending in the front-rear direction in the double-shield support shoe device.
The double-shield shoe supporting device adopts a modularized design and comprises a front part, a middle part and a rear part which are formed by a segment ring 1, a connecting piece and a shoe supporting mechanism 4. Under the construction environment that does not need to assemble the segment, only the double-shield supporting shoe device provided in the embodiment is required to be arranged in the shield tunneling machine, and the supporting shoe mechanism 4 is used for supporting the wall of the tunnel so as to provide pushing counterforce for the front pushing oil cylinder 8, so that the shield tunneling machine can still tunnel under the condition that the segment is not assembled, the geological range adapted to the shield tunneling machine can be enlarged, the construction cost of the shield tunneling is greatly reduced, the preparation work and time for the shield initiation are reduced, and the tunneling speed of the shield tunneling machine can be improved.
Specifically, the positioning plate 403 may be hinged with a drag cylinder 5 for connection with the joist 10 in the shield machine. In this embodiment, the positioning plate 403 is pulled by the pulling cylinder 5 to pull the dual-shield support shoe device to integrally advance, so that stepping of the dual-shield support shoe device can be achieved. When the propulsion oil cylinder 8 drives the host machine and the rear matching system 16 to complete tunneling by a preset distance, the telescopic component moves reversely, the shoe supporting plate 401 moves close to the central line of the double-shield shoe supporting device, the dragging oil cylinder 5 retracts, and the double-shield shoe supporting device is pulled to advance by a preset distance. Namely, when the main machine of the shield machine and the rear matched system advance for a certain distance, the double-shield supporting shoe device can be pulled forwards for the same distance through the dragging oil cylinder 5.
On the basis of any embodiment, the shoe supporting plate 401 can be connected with the positioning plate 403 through a pin shaft, so as to reduce friction damage between the shoe supporting plate 401 and the positioning plate 403.
On the basis of any of the above embodiments, the positioning plate 403 may be disposed in a lateral direction, that is, the positioning plate 403 is perpendicular to the up-down direction, specifically, the shoe plates 401 are disposed on the left and right sides of the center line, and the two shoe plates 401 may respectively tighten the wall of the hole to the left or right.
On the basis of any of the above embodiments, a plurality of arc-shaped steel pipe pieces 101 may be sequentially disposed around the center line to form the annular segment ring 1, and the adjacent arc-shaped steel pipe pieces 101 are detachably connected. Specifically, the detachable connection member 102 between the adjacent arc-shaped steel pipe pieces 101 may be specifically a screw. In this embodiment, a plurality of arc steel pipe sheets 101 are connected into an annular structure, and the arc steel pipe sheets 101 can provide supporting force for each other, and meanwhile, the detachable connection of the pipe sheet replacing ring 1 can reduce the storage space required by the dual-shield shoe supporting device when not in use. The number of the arc-shaped steel pipe pieces 101 may be selected according to actual needs, for example, the number of the arc-shaped steel pipe pieces 101 may be 6.
On the basis of any of the above embodiments, the connecting piece may specifically be a gesture oil cylinder 201, where the front end of the gesture oil cylinder 201 is hinged with the segment ring 1 and the rear end is hinged with the frame 3. The attitude oil cylinder 201 is hinged with the duct segment ring 1 and the frame 3, so that the included angles of the support shoe mechanism 4 and the duct segment ring 1 relative to the central line can be adjusted, and the support shoe plate 401 can be ensured to be capable of supporting the hole wall according to the specific shape adjustment angle of the hole wall when the propulsion oil cylinder 8 is propped against the duct segment ring 1. The number of the gesture cylinders 201 may be selected according to actual needs, for example, the number of gesture cylinders 201 may be 18, and all gesture cylinders 201 form a gesture cylinder group 2.
On the basis of any one of the embodiments, the telescopic component may be specifically a tightening cylinder 402, and the oppositely arranged shoe supporting plates 401 are respectively hinged to two ends of the tightening cylinder 402, so that stability is better. The number of the tightening cylinders 402 may be selected according to actual needs, for example, the number of the tightening cylinders 402 may be 2.
On the basis of any one of the above embodiments, the connection piece and the frame 3, the connection piece and the segment ring 1 may be detachably connected, so that the connection piece, the shoe supporting mechanism 4 and the segment ring 1 may be separated when the dual-shield shoe supporting device is not used, so that the dual-shield shoe supporting device may be stored conveniently, and meanwhile, the dual-shield shoe supporting device may be transported between the ground and the underground conveniently.
On the basis of any of the above embodiments, the shoe 401 may be specifically an arc-shaped plate so as to be adapted to the shape of the surrounding rock 13.
For the double-shield shoe supporting device comprising the dragging oil cylinder 5, the tightening oil cylinder 402, the left shoe supporting plate 4011 and the right shoe supporting plate 4012, when the shield machine is propelled in a pipe-slice-free mode in the stable surrounding rock 13, the tightening mechanism of the double-shield shoe supporting device is tightened on the surrounding hole wall under the pushing of the tightening oil cylinder 402, and the thrust and torque of the front end propulsion oil cylinder 8 of the pipe-segment ring 1 are born by virtue of the friction force between the shoe supporting mechanism 4 and the surrounding rock 13. When the propulsion oil cylinder 8 drives the host machine and the rear matching system 16 to complete the distance tunneling of the 1-ring pipe piece, the tightening oil cylinder 402 is retracted, and the shoe supporting plate 401 is retracted accordingly, so that the double-shield shoe supporting device is pulled to advance by the distance of 1-ring pipe piece under the driving of the retraction of the dragging oil cylinder 5. Then, the shoe supporting mechanism 4 continues to tightly support the hole wall, the pushing oil cylinder 8 stretches out and abuts against the front end face of the pipe replacing sheet ring 1, and the 1-ring pipe sheet distance stepping is continuously completed. Wherein, the front end of the towing cylinder 5 is hinged with the joist 10 and the rear end is hinged with the locating plate 403.
Besides the double-shield supporting shoe device 21, the invention also provides a shield machine, which comprises a shield body 7, the double-shield supporting shoe device 21 and a duct piece assembling machine 11 detachably arranged in the shield body 7, wherein the double-shield supporting shoe device 21 can be the double-shield supporting shoe device 21 provided by any embodiment. The shield machine specifically comprises a process technology for converting a segment-free propelling mode into a segment-free propelling mode of the shield machine in the construction process, and a process technology for converting the segment-free propelling mode into the segment-free propelling mode of the shield machine. The double-shield supporting shoe device 21 is a set of detachable counterforce device for the shield machine, solves the construction problem of 'tunnel first and then station' of the shield machine and the problem of economic station excavation of the shield machine, enlarges the geological application range, reduces the construction cost of the tunnel, can realize 'one machine with multiple purposes', and improves the tunneling speed. The structure of the cutterhead 6, the main drive 9, the screw conveyor 12, the segment erector 11, the trailer roller 17 and the like of the shield machine refer to the prior art, and the description thereof is omitted.
A construction method for carrying out pipe-piece-free assembly tunneling on a shield machine by utilizing the double-shield supporting shoe device comprises the following specific construction processes:
1. referring to fig. 4 to 6, the three diagrams illustrate a process of switching the earth pressure shield machine from a segment-having propulsion mode to a segment-free propulsion mode, and a specific mode switching flow (process) is as follows:
step one: and splicing and reinforcing a transition ring segment 18 (namely a steel pipe ring) at the front end of the spliced tunnel segment 15. The transition ring segment 18 is assembled into a ring by the segment erector 11, so that the connection and fastening of the longitudinal bolts between the transition ring segment 18 and the tunnel segment 15 are ensured. A water stop ring 20 is additionally arranged at the front end of the transition ring segment 18 to prevent water seepage of stratum. Filling material 14 after filling the back clearance of the transition ring segment 18, driving anchor rods 19 into the wall surface of the tunnel, and selecting the driving quantity according to the requirement. In this regard, the transition ring segment 18 completes the reinforcement. Wherein the tunnel segment 15 comprises segment segments 1501.
Step two: a double shield support shoe arrangement 21 is installed. The double shield support shoe device 21 is installed according to the sequence of the segment ring 1-the gesture oil cylinder group 2-the frame 3-the support shoe mechanism 4, and a certain adjusting gap is reserved between the rear end side of the support shoe mechanism 4 and the assembled transition ring segment 18 by fastening connecting bolts or other connecting devices between the arc steel pipe sheet 101 and the arc steel pipe sheet 101, between the gesture oil cylinder 201 and the segment ring 1 and the frame 3 and between the support shoe mechanism 4.
Step three: the earth pressure shield machine is propelled in a pipe-slice-free mode. After the components, hydraulic and electrical lines of the double shield support shoe assembly 21 are installed: 1. the shoe supporting mechanism 4 is supported on the wall of the hole under the pushing of the supporting oil cylinder 402, and the supporting force is slowly raised until the design index is reached; 2. the pushing oil cylinder 8 is extended until the tail end of the pushing oil cylinder is abutted against the end face of the pipe replacing sheet ring 1; 3. the segment erector 11 is retreated to the forefront end of the joist 10 and locked; 4. rotating the cutterhead 6 and starting other systems, slowly increasing the pressure of the propulsion oil cylinder 8 until the expected tunneling parameters are reached, and starting tunneling without pipe sheets for the earth pressure shield machine; 5. the excavation distance (1-ring segment distance) of one stepping cycle is completed, the machine is stopped, the tightening oil cylinder 402 is retracted, and the shoe supporting mechanism 4 is retracted; 6. the dragging oil cylinder 5 is retracted, the double-shield supporting shoe device 21 is dragged to advance for one step cycle distance (1-ring segment distance), the supporting oil cylinder 402 is extended, the supporting shoe mechanism 4 is supported on the hole wall, the pushing oil cylinder 8 is extended and is propped against the end face of the pipe replacing segment ring 1, and the next tunneling cycle is started.
2. Referring to fig. 6 to 8, these three diagrams show a process schematic diagram of a transition of the earth pressure shield machine from a tubeless sheet propulsion mode to a tubesheet propulsion mode, and a specific mode transition flow (process) is as follows:
step one: when the shield tunneling machine is about to go out of a hard rock section, the double-shield support shoe device 21 is sequentially disassembled in a blocking mode according to the sequence of the support shoe mechanism 4-the frame 3-the posture oil cylinder group 2-the segment ring 1, the transition ring segment 18 is installed and reinforced (the reinforcing process is the same as the above), counter force is provided for shield tunneling, and the number of the transition rings should meet the design requirement (generally not less than 2 rings).
Step two: the assembly of the transition ring segment 18 is stopped and the tunnel segment 15 is assembled instead. And filling the back of the tunnel segment 15 with a wall-filling material 14 to reinforce the tunnel segment 15, and starting the earth pressure shield machine to push the segment.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The shield machine and the double-shield support shoe device provided by the invention are described in detail. The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Claims (5)
1. A dual shield support shoe apparatus for assisting shield machine stepping, comprising: the segment ring (1) is matched and abutted with a thrust cylinder (8) in the shield machine; the rack (3) is arranged behind the tube replacing sheet ring; the shoe supporting mechanism (4) comprises a positioning plate (403) fixedly connected to the frame (3), oppositely arranged shoe supporting plates (401) rotatably connected to the positioning plate (403) and telescopic components connected between the oppositely arranged shoe supporting plates (401), and the telescopic components drive the shoe supporting plates (401) to move towards or away from the central line of the double-shield shoe supporting device through telescopic operation; the connecting piece is connected between the segment ring (1) and the frame (3);
the shoe supporting plate (401) is connected to the positioning plate (403) through a pin shaft;
the telescopic parts are tightening oil cylinders (402), and the oppositely arranged shoe supporting plates (401) are respectively hinged to two ends of the tightening oil cylinders (402);
the positioning plate (403) is hinged with a dragging oil cylinder (5) connected with a joist (10) in the shield tunneling machine, the connecting piece is a gesture oil cylinder (201), the front end of the gesture oil cylinder (201) is hinged with the pipe-substituting sheet ring (1), and the rear end of the gesture oil cylinder is hinged with the frame (3).
2. The dual shield support shoe arrangement of claim 1, wherein the positioning plate (403) is arranged in a lateral direction.
3. The dual shield stay boot device according to claim 1, wherein a plurality of arc-shaped steel pipe sheets (101) are sequentially arranged around the center line to form the annular pipe-substituting sheet ring (1), and adjacent arc-shaped steel pipe sheets (101) are detachably connected.
4. A double shield support shoe arrangement according to any one of claims 1 to 3, wherein the connection piece is detachably connected to the frame (3), the connection piece and the tube replacement sheet ring (1), respectively.
5. The shield machine comprises a shield body (7), and is characterized by further comprising:
the duct piece splicing machine (11) is detachably arranged in the shield body (7);
a dual shield stay device according to any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810797071.7A CN108756905B (en) | 2018-07-19 | 2018-07-19 | Shield machine and double-shield support shoe device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810797071.7A CN108756905B (en) | 2018-07-19 | 2018-07-19 | Shield machine and double-shield support shoe device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108756905A CN108756905A (en) | 2018-11-06 |
| CN108756905B true CN108756905B (en) | 2024-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810797071.7A Active CN108756905B (en) | 2018-07-19 | 2018-07-19 | Shield machine and double-shield support shoe device thereof |
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| CN109826638B (en) * | 2019-01-24 | 2020-11-03 | 湖南科技大学 | Hydraulic cylinder arrangement control mechanism for shield machine |
| CN110469337A (en) * | 2019-09-04 | 2019-11-19 | 中交天和机械设备制造有限公司 | A kind of method that shield machine tunnels synchronous segment assembly |
| CN111622764B (en) * | 2020-06-11 | 2022-08-02 | 中铁工程装备集团有限公司 | Shield tunneling machine and station passing method thereof |
| CN112727475A (en) * | 2020-10-30 | 2021-04-30 | 江苏凯宫隧道机械有限公司 | Shield constructs machine and shield body props tight device for shield constructs machine |
| CN113970290A (en) * | 2021-09-23 | 2022-01-25 | 上海市基础工程集团有限公司 | Tunnel detection device for shield construction |
| CN113914883B (en) * | 2021-10-11 | 2024-06-07 | 中铁工程装备集团有限公司 | Development machine and unilateral support shoe device thereof |
| CN114320323B (en) * | 2021-12-27 | 2024-04-09 | 北方重工集团有限公司 | Three-support shoe tightening shield for double-shield coal roadway heading machine |
| CN116591700B (en) * | 2023-06-01 | 2024-04-16 | 中国矿业大学(北京) | TBM system suitable for soft rock tunnel and rock burst tunnel and construction method |
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