CN117489371B - TBM tunnel construction slip casting device - Google Patents
TBM tunnel construction slip casting device Download PDFInfo
- Publication number
- CN117489371B CN117489371B CN202410000147.4A CN202410000147A CN117489371B CN 117489371 B CN117489371 B CN 117489371B CN 202410000147 A CN202410000147 A CN 202410000147A CN 117489371 B CN117489371 B CN 117489371B
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- China
- Prior art keywords
- grouting
- sliding
- arc
- groove
- shield body
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- 238000010276 construction Methods 0.000 title claims abstract description 17
- 238000007569 slipcasting Methods 0.000 title claims description 5
- 230000008093 supporting effect Effects 0.000 claims abstract description 24
- 239000010720 hydraulic oil Substances 0.000 claims 3
- 239000004575 stone Substances 0.000 description 14
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 1
- 244000046052 Phaseolus vulgaris Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a TBM tunnel construction grouting device, which belongs to the technical field of shield grouting and comprises a shield body, wherein a cutter disc is arranged at the front end of the shield body, a support ring is arranged at the rear end of the shield body, at least three grouting components are arranged on the support ring, and two grouting components are symmetrically arranged at two sides of the bottom of the rear end of the shield body; each grouting assembly comprises an arc-shaped block, the supporting ring is provided with a mounting groove, the arc-shaped blocks are fixedly connected in the mounting groove, the arc-shaped blocks are symmetrically provided with two sliding grooves, each sliding groove is internally and slidably connected with a sliding seat, the inner wall of one end of each sliding groove is provided with a telescopic piece, the telescopic piece drives the sliding seat to slide in the sliding groove, the sliding seat is provided with a through groove, the grouting pipe is rotationally connected in the through groove, and a tension spring is arranged between the grouting pipe and the arc-shaped blocks. According to the invention, through the rotatable design of the grouting pipes and the sliding seat, when the two grouting pipes are close to each other, an isosceles trapezoid grouting area is formed in the grouting area, so that the grouting pipes are durable.
Description
Technical Field
The invention relates to the technical field of shield tunnel grouting, in particular to a TBM tunnel construction grouting device.
Background
The TBM construction method has been widely used in tunnel construction. However, the TBM construction process also faces the risks of dislocation, cracking and water leakage of the high-incidence segment, and brings a series of difficulties and challenges to the TBM construction. In TBM tunneling process, the excavation diameter of blade disc and shield body is slightly greater than section of jurisdiction ring diameter generally, consequently when the section of jurisdiction deviate from the shield tail, if not in time pack the section of jurisdiction bottom, can cause the section of jurisdiction to receive gravity to take place to sink, and then lead to unable recovered tunnel line to change, bring serious risk to construction safety.
The existing TBM tunnel grouting is a technology for timely filling the bean gravel holes in the annular gap between the pipe piece and surrounding rock after the pipe piece is separated from the tail of the shield by a distance through a hoisting hole in the center of the pipe piece and a matched grouting system, the technology is generally only a technology of inserting a grouting pipe, completely pressurizing the grouting pipe through the flowing of slurry into the gap of crushed stone, the supporting force of the crushed stone dispersion on the pipe piece is insufficient, and the subsequent tunnel settlement risk is large.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a TBM tunnel construction grouting device.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the TBM tunnel construction grouting device comprises a shield body, wherein a cutter disc is arranged at the front end of the shield body, a support ring is arranged at the rear end of the shield body, at least three grouting assemblies are arranged on the support ring, and two grouting assemblies are symmetrically arranged at two sides of the bottom of the rear end of the shield body;
each grouting assembly comprises an arc-shaped block, the supporting ring is provided with a mounting groove, the arc-shaped blocks are fixedly connected in the mounting groove, the arc-shaped blocks are symmetrically provided with two sliding grooves, each sliding groove is internally and slidably connected with a sliding seat, the inner wall of one end of each sliding groove is provided with a telescopic piece, the telescopic piece drives the sliding seat to slide in the sliding groove, the sliding seat is provided with a through groove, the grouting pipe is rotationally connected in the through groove, and a tension spring is arranged between the grouting pipe and the arc-shaped blocks.
Preferably, the telescopic piece is a hydraulic cylinder, one end of the hydraulic cylinder is hinged with the inner wall of the chute, and the other end of the hydraulic cylinder is hinged with the sliding seat.
Preferably, the inner wall of the through groove is provided with a sliding groove, the sliding groove is connected with a sliding block in a sliding way, and the grouting pipe is rotationally connected to the sliding block.
Preferably, a plurality of protruding rings are arranged at the grouting end of the grouting pipe.
Preferably, one side of the arc-shaped block is fixedly connected with a supporting rod, the end head of the supporting rod is rotationally connected with a cylinder, one side of the grouting pipe is fixedly connected with an inclined block, and the inclined block is correspondingly arranged with the cylinder.
Preferably, a plurality of arc-shaped grooves are formed in the inclined plane of the inclined block at intervals.
The invention has the advantages that: according to the TBM tunnel construction grouting device provided by the invention, broken stones are required to be collected, one side grouting is carried out, meanwhile, the broken stones are collected and even extruded to the inner wall of a tunnel to form further stability, then slurry surrounds shield segments to form a stable grouting layer, at least three stable supporting areas are additionally formed in the grouting layer, in the process, the grouting pipe is avoided and is greatly influenced by reaction force, the grouting end of the grouting pipe is easy to bend due to the fact that the position of the grouting pipe is far away from the sliding seat, and through the rotatable design of the grouting pipe and the sliding seat, when the two grouting pipes are mutually close, an isosceles trapezoid grouting area is formed in the grouting area, so that the grouting pipe is durable.
According to the invention, after the trapezoid stable supporting area is formed by grouting at the previous position, as the laying of the shield segment advances, when the formed stable supporting area works, the hydraulic cylinder pulls the grouting pipe, the grouting pipe inclines and simultaneously pushes the grouting pipe axially, broken stone is positioned between two convex rings and is easy to push, so that broken stone is convenient to plug into the previous stable supporting area, and therefore, the two areas of sequential grouting are staggered, and cement paste solidification is convenient to form an integral stable support, so that the supporting effect is improved.
Drawings
FIG. 1 is a schematic view of the basic structure of the present invention;
FIG. 2 is a schematic view of the construction of a grouting assembly according to the present invention;
FIG. 3 is a schematic diagram of a connection structure between a grouting pipe and a sliding seat in the invention;
FIG. 4 is a schematic view of the internal structure of the grouting assembly;
FIG. 5 is a schematic illustration of grouting of a grouting assembly;
fig. 6 is a schematic view of the working state of the present invention.
In the figure: 10. grouting layer; 1. a shield body; 2. a support ring; 3. grouting components; 31. an arc-shaped block; 32. a mounting groove; 33. a chute; 34. a sliding seat; 35. a hydraulic cylinder; 36. a through groove; 37. grouting pipe; 38. a tension spring; 361. a sliding groove; 362. a sliding block; 371. a protruding ring; 4. a support rod; 5. a cylinder; 6. a sloping block; 61. an arc-shaped groove.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1-6, the grouting device for TBM tunnel construction provided by the invention comprises a shield body 1, wherein a cutter disc is arranged at the front end of the shield body 1, a support ring 2 is arranged at the rear end of the shield body 1, at least three grouting assemblies 3 are arranged on the support ring 2, wherein two grouting assemblies 3 are symmetrically arranged at two sides of the bottom of the rear end of the shield body 1, and supports are formed at the top and two sides of the bottom of a paved shield segment ring, so that the grouting device can adapt to shields of soft soil tunnels and unstable gravel tunnels;
each grouting assembly 3 comprises an arc-shaped block 31, the supporting ring 2 is provided with a mounting groove 32, the arc-shaped blocks 31 are fixedly connected in the mounting groove 32, the arc-shaped blocks 31 are symmetrically provided with two sliding grooves 33, each sliding groove 33 is internally and slidably connected with a sliding seat 34, one end inner wall of each sliding groove 33 is provided with a telescopic piece, the telescopic piece drives the sliding seat 34 to slide in the sliding groove 33, the telescopic piece is a hydraulic cylinder 35, one end of the hydraulic cylinder 35 is hinged with the inner wall of the sliding groove 33, the other end of the hydraulic cylinder 35 is hinged with the sliding seat 34, the sliding seat 34 is provided with a through groove 36, a grouting pipe 37 is rotationally connected in the through groove 36, the grouting pipe 37 is connected with a grouting machine arranged in the shield body 1 through a hose, and a tension spring 38 is arranged between the grouting pipe 37 and the arc-shaped blocks 31.
In the above embodiment, for the crushed rock existing at the outer side of the shield tunnel, when grouting is performed, the two hydraulic cylinders 35 pull the corresponding sliding seats 34 to each other, so that the distance between the two grouting pipes 37 is reduced, and broken stones between the grouting pipes 37 are gathered and compacted, so that the shield segment can be supported and reinforced;
when the outer side of the shield tunnel is mainly soft soil, a hollow pipe is arranged in the middle of the arc-shaped block 31, cobbles and gravels are pushed to the area between the two grouting pipes 37 through the hollow pipe, and aggregate support is provided.
When two grouting pipes 37 are close to each other, because broken stone is required to be gathered, one side grouting is performed, the broken stone is gathered and even extruded to the inner wall of a tunnel to form further stability, then slurry surrounds shield segments to form a stable grouting layer 10, at least three stable supporting areas are additionally formed in the grouting layer 10, in the process, the position of the grouting pipe 37 close to the sliding seat 34 is greatly influenced by the counter force due to avoidance, the grouting end of the grouting pipe 37 is easily bent due to the fact that the counter force is far away from the sliding seat 34, through the rotatable design of the grouting pipe 37 and the sliding seat 34, when the two grouting pipes 37 are close to each other, the far end of the grouting pipe 37 can be in a state shown in fig. 5, and an isosceles trapezoid grouting area is formed in the grouting area, so that the grouting pipe 37 is durable.
As an embodiment of the present invention, a sliding groove 361 is provided on the inner wall of the through groove 36, a sliding block 362 is slidably connected in the sliding groove 361, the grouting pipe 37 is rotatably connected to the sliding block 362, and a plurality of protruding rings 371 are provided between grouting ends of the grouting pipe 37.
In the above embodiment, as shown in fig. 5, after grouting in the previous position to form a trapezoidal stable supporting area, as the laying of the shield segment advances, during the operation of the stable supporting area formed later, the hydraulic cylinder 35 pulls the grouting pipe 37, while the grouting pipe 37 is inclined, the grouting pipe 37 is pushed axially, and the crushed stone is located between the two protruding rings 371, so that the crushed stone is easy to be pushed into the previous stable supporting area, so that the two areas of sequential grouting are staggered, thereby facilitating the solidification of cement paste to form an integral stable support, and further improving the supporting effect.
After the crushed stone is gathered, the grouting pipe 37 is retracted and reset, and the crushed stone is left in the stable supporting area. The grouting pipe 37 advances along with the shield body 1 to lay the next shield segment ring.
As one implementation mode of the invention, one side of the arc-shaped block 31 is fixedly connected with the supporting rod 4, the end head of the supporting rod 4 is rotatably connected with the cylinder 5, one side of the grouting pipe 37 is fixedly connected with the inclined block 6, and the inclined block 6 is correspondingly arranged with the cylinder 5.
Further, a plurality of arc-shaped grooves 61 are provided at intervals on the inclined surface of the inclined block 6.
In the above embodiment, the axial pushing of the grouting pipe 37 is achieved by the extrusion action of the inclined block 6 and the cylinder 5, the grouting pipe 37 is pulled by the hydraulic cylinder 35, the grouting pipe 37 is inclined, the lower end of the inclined block 6 is close to the cylinder 5 and blocked by the cylinder 5 as shown in fig. 5 and 6, and the grouting pipe 37 needs to be moved further, so that the grouting pipe 37 needs to be avoided downwards in an axial direction, thereby achieving the pushing action of the grouting pipe 37, and the axial pushing cylinder and the cooperation control device do not need to be added on the grouting pipe 37;
further, when the cylinder 5 slides on the inclined block 6 and encounters the arc-shaped groove 61, the elasticity of the tension spring 38 is matched, so that the vibration in the swinging direction and the displacement in the axial direction of the grouting pipe 37 are realized, the injected cement paste and broken stone are filled compactly, and the grouting stability effect is improved.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The utility model provides a TBM tunnel construction slip casting device, includes shield body (1), shield body (1) front end sets up the blade disc, shield body (1) rear end sets up supporting ring (2), supporting ring (2) set up three slip casting subassembly (3) at least, wherein two slip casting subassembly (3) symmetry set up in shield body (1) rear end bottom both sides, its characterized in that:
each grouting assembly (3) comprises an arc-shaped block (31), the supporting ring (2) is provided with a mounting groove (32), the arc-shaped blocks (31) are fixedly connected in the mounting groove (32), the arc-shaped blocks (31) are symmetrically provided with two sliding grooves (33), each sliding groove (33) is connected with a sliding seat (34) in a sliding mode, the inner wall of one end of each sliding groove (33) is provided with a telescopic piece, the telescopic pieces drive the sliding seats (34) to slide in the sliding grooves (33), the sliding seats (34) are provided with through grooves (36), grouting pipes (37) are rotationally connected in the through grooves (36), and tension springs (38) are arranged between the grouting pipes (37) and the arc-shaped blocks (31);
the inner wall of the through groove (36) is provided with a sliding groove (361), the sliding groove (361) is connected with a sliding block (362) in a sliding way, and the grouting pipe (37) is connected to the sliding block (362) in a rotating way;
a plurality of protruding rings (371) are arranged at the grouting end of the grouting pipe (37);
the grouting device is characterized in that one side of the arc-shaped block (31) is fixedly connected with the supporting rod (4), the end head of the supporting rod (4) is rotationally connected with the cylinder (5), one side of the grouting pipe (37) is fixedly connected with the inclined block (6), and the inclined block (6) is correspondingly arranged with the cylinder (5).
2. The TBM tunnel construction grouting device of claim 1, wherein: the telescopic piece is a hydraulic oil cylinder (35), one end of the hydraulic oil cylinder (35) is hinged with the inner wall of the sliding groove (33), and the other end of the hydraulic oil cylinder (35) is hinged with the sliding seat (34).
3. The TBM tunnel construction grouting device of claim 1, wherein: a plurality of arc-shaped grooves (61) are formed in the inclined plane of the inclined block (6) at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410000147.4A CN117489371B (en) | 2024-01-02 | 2024-01-02 | TBM tunnel construction slip casting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410000147.4A CN117489371B (en) | 2024-01-02 | 2024-01-02 | TBM tunnel construction slip casting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117489371A CN117489371A (en) | 2024-02-02 |
| CN117489371B true CN117489371B (en) | 2024-03-19 |
Family
ID=89669404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410000147.4A Active CN117489371B (en) | 2024-01-02 | 2024-01-02 | TBM tunnel construction slip casting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117489371B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000160996A (en) * | 1998-11-30 | 2000-06-13 | Ohbayashi Corp | Tunnel timbering installation device |
| JP2017145648A (en) * | 2016-02-18 | 2017-08-24 | 鹿島建設株式会社 | Invert concrete construction device |
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| CN111997654A (en) * | 2020-09-03 | 2020-11-27 | 中铁隧道局集团有限公司 | Shield constructs quick-witted slip casting system |
| CN114033397A (en) * | 2021-11-10 | 2022-02-11 | 中铁十八局集团第四工程有限公司 | Deep hole grouting method and device in shield engineering hole |
| CN114458340A (en) * | 2021-12-28 | 2022-05-10 | 中铁五局集团电务工程有限责任公司 | Tunnel grouting device for large and small shield |
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| CN114922661A (en) * | 2022-07-21 | 2022-08-19 | 中南大学 | Miniature reinforcing pile for concrete pipe sheet of shield tunnel |
| CN115434725A (en) * | 2022-08-09 | 2022-12-06 | 上海弥涅科技有限公司 | Shield tunnel compaction grouting equipment |
| CN115637991A (en) * | 2022-12-26 | 2023-01-24 | 中南大学 | Shield type TBM tunnel wall back grouting equipment |
| CN218597130U (en) * | 2022-08-30 | 2023-03-10 | 山西临汾市政工程集团股份有限公司 | Side expands resistance to plucking rubble pile foundation structure that slip casting combines |
| CN116006191A (en) * | 2021-09-24 | 2023-04-25 | 绍兴市轨道交通集团有限公司 | End diffusion type grouting device for shield tunnel |
| CN116464478A (en) * | 2023-06-01 | 2023-07-21 | 北京城建华晟交通建设有限公司 | Grouting device for tunnel construction |
| CN116950694A (en) * | 2023-09-18 | 2023-10-27 | 中交隧道工程局有限公司 | Grouting device for shield tunnel |
| KR102598805B1 (en) * | 2023-02-24 | 2023-11-06 | 주식회사 대한콘설탄트 | Construction method of tunnel lining back grouting of grouting tube recovery |
| CN220226892U (en) * | 2023-06-09 | 2023-12-22 | 中赟国际工程有限公司 | Grouting pipe for reinforcing coal mine shaft |
-
2024
- 2024-01-02 CN CN202410000147.4A patent/CN117489371B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000160996A (en) * | 1998-11-30 | 2000-06-13 | Ohbayashi Corp | Tunnel timbering installation device |
| JP2017145648A (en) * | 2016-02-18 | 2017-08-24 | 鹿島建設株式会社 | Invert concrete construction device |
| CN110454195A (en) * | 2019-08-08 | 2019-11-15 | 广东水电二局股份有限公司 | Built-in slip casting pipe adjustment mechanism, trolley, installation method and Grouting Pipe method of adjustment |
| CN111997654A (en) * | 2020-09-03 | 2020-11-27 | 中铁隧道局集团有限公司 | Shield constructs quick-witted slip casting system |
| CN116006191A (en) * | 2021-09-24 | 2023-04-25 | 绍兴市轨道交通集团有限公司 | End diffusion type grouting device for shield tunnel |
| CN114033397A (en) * | 2021-11-10 | 2022-02-11 | 中铁十八局集团第四工程有限公司 | Deep hole grouting method and device in shield engineering hole |
| CN114458340A (en) * | 2021-12-28 | 2022-05-10 | 中铁五局集团电务工程有限责任公司 | Tunnel grouting device for large and small shield |
| CN114607398A (en) * | 2022-04-13 | 2022-06-10 | 中铁十九局集团轨道交通工程有限公司 | Shield tunnel segment wall post-grouting construction method and device |
| DE202022102769U1 (en) * | 2022-05-19 | 2022-05-31 | China Railway Sixth Group Co., Ltd. | Injection device for earth pressure balance shield machine for crossing a karst area of a karst layer |
| CN114922661A (en) * | 2022-07-21 | 2022-08-19 | 中南大学 | Miniature reinforcing pile for concrete pipe sheet of shield tunnel |
| CN115434725A (en) * | 2022-08-09 | 2022-12-06 | 上海弥涅科技有限公司 | Shield tunnel compaction grouting equipment |
| CN218597130U (en) * | 2022-08-30 | 2023-03-10 | 山西临汾市政工程集团股份有限公司 | Side expands resistance to plucking rubble pile foundation structure that slip casting combines |
| CN115637991A (en) * | 2022-12-26 | 2023-01-24 | 中南大学 | Shield type TBM tunnel wall back grouting equipment |
| KR102598805B1 (en) * | 2023-02-24 | 2023-11-06 | 주식회사 대한콘설탄트 | Construction method of tunnel lining back grouting of grouting tube recovery |
| CN116464478A (en) * | 2023-06-01 | 2023-07-21 | 北京城建华晟交通建设有限公司 | Grouting device for tunnel construction |
| CN220226892U (en) * | 2023-06-09 | 2023-12-22 | 中赟国际工程有限公司 | Grouting pipe for reinforcing coal mine shaft |
| CN116950694A (en) * | 2023-09-18 | 2023-10-27 | 中交隧道工程局有限公司 | Grouting device for shield tunnel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117489371A (en) | 2024-02-02 |
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