CN110410144B - Waterproof and drainage structure of shield tunnel - Google Patents
Waterproof and drainage structure of shield tunnel Download PDFInfo
- Publication number
- CN110410144B CN110410144B CN201910651944.8A CN201910651944A CN110410144B CN 110410144 B CN110410144 B CN 110410144B CN 201910651944 A CN201910651944 A CN 201910651944A CN 110410144 B CN110410144 B CN 110410144B
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- waterproof
- drainage
- shield tunnel
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- lining
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- 238000007789 sealing Methods 0.000 claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims description 14
- 239000007921 spray Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000010410 layer Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 230000005641 tunneling Effects 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
- E21D11/08—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
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F16/00—Drainage
- E21F16/02—Drainage of tunnels
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Civil Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a waterproof and drainage structure of a shield tunnel, which comprises a lining structure, a character-shaped piece, an anti-collision wall and a waterproof structure, wherein a drainage space is formed between the waterproof structure and the lining structure, two ends of the bottom surfaces of two sides of the waterproof structure are respectively provided with a support, pulleys are arranged on the supports, the end surfaces of the anti-collision wall are respectively provided with a track for the pulleys to roll, the bottom surfaces of the two sides of the drainage space are respectively sealed by a waterproof plate and a waterproof sealing gasket, the end surfaces of the two ends of the drainage space are respectively sealed by the waterproof sealing gaskets, a drainage channel is arranged on the inner side of the anti-collision wall, the bottom of the waterproof plate is connected with a plurality of drainage pipes, and the drainage pipes penetrate through gaps between the waterproof structure and the anti-collision wall and are communicated with the drainage channels.
Description
Technical Field
The invention relates to the technical field of tunnel engineering, in particular to a waterproof and drainage structure of a shield tunnel.
Background
In recent years, along with the rapid promotion of national development strategy and foundation construction of each land, the further improvement of high-speed railway networks, highway networks and urban road networks is achieved, and more river-crossing and sea-crossing tunnels are built batch by batch. Tunnels are widely used worldwide for their unique advantages over other modes of transportation. Among the construction methods of tunnels, the shield method is increasingly favored by the engineering industry because of the advantages of low labor intensity, high tunneling speed, safety, reliability, no limitation of seasons, small influence on surrounding stratum disturbance and the like.
In order to optimize the design and save the manufacturing cost, a lining structure formed by splicing single-layer concrete segments through bolts has become the mainstream of shield tunnel engineering. In the actual operation process, the leakage water is a great difficulty which hinders the reliability of the tunnel in the designed service period, and particularly for a shield tunnel with high water pressure and large diameter, the situation that the tunnel is not leaked due to dripping is guaranteed. If a two-lining waterproof system is fully arranged in the shield tunnel, on the one hand, the two-lining waterproof system is extremely uneconomical, on the other hand, for the underwater shield tunnel, the tunnel structure can cause longitudinal uneven settlement due to various reasons, in a long service period, the two linings can inevitably generate deformation or crack under the influence of uneven settlement, even structural failure can be caused, and the reliability of the waterproof performance cannot be ensured.
Disclosure of Invention
The invention aims at providing a waterproof and drainage structure of a shield tunnel aiming at the existing state of the art, a drainage space is formed between the waterproof structure and a lining structure, the waterproof structure is used as a drainage channel of leakage water in the shield tunnel, the waterproof performance is effectively improved, the waterproof structure is separated from the lining structure, and therefore the waterproof and drainage structure cannot be interfered by the shield tunnel, and the operation and maintenance stability is high.
In order to achieve the above purpose, the invention adopts the following technical scheme:
The utility model provides a shield tunnel's waterproof and drainage structure, shield tunnel includes lining structure and sets up the mouth word spare in lining structure bottom, lining structure is formed by the section of jurisdiction along shield tunnel hoop and vertical concatenation, mouth word spare is used for providing evacuation space, pipeline arrangement space and equipment arrangement space, mouth word spare both sides are equipped with along shield tunnel longitudinal extension's anticollision wall, still include waterproof structure, waterproof structure is radius be less than lining structure and length be not more than lining structure's arc concrete slab, form the drainage space between waterproof structure and the lining structure, the both ends of waterproof structure both sides bottom surface all are equipped with the support, support and waterproof structure pass through longeron fixed connection down, drainage space both sides bottom surface all seals through the waterproof board, drainage space both ends terminal surface all seals through waterproof sealing washer, the anticollision wall inboard is equipped with the drainage canal, waterproof board bottom connection a plurality of following shield tunnel longitudinal arrangement's drain pipes, the drain pipe passes clearance between waterproof structure and the anticollision wall and communicates with the drainage canal.
In the technical scheme, the support is provided with the pulley, the upper end face of the anti-collision wall is provided with the track for the pulley to roll, the length of the track is not greater than that of the lining structure, and the waterproof plates on two sides of the drainage space are respectively connected with the bottom surfaces on two sides of the waterproof structure through the sliding locking mechanism.
Further, the sliding locking mechanisms are at least two groups, each sliding locking mechanism comprises a locking screw and a locking groove on the waterproof board, the locking screws are in threaded connection with the waterproof board, the locking grooves are perpendicular to the shield tunnel, and the locking screws penetrate through the locking grooves and are connected with the waterproof board to press the waterproof board on the bottom surface of the waterproof board.
Furthermore, waterproof rubber pads are adhered to the upper end face and the outer side of the waterproof plate.
In the technical scheme, at least one layer of waterproof spray film is arranged in the waterproof structure, and waterproof coatings are arranged on the inner surface and the outer surface of the waterproof structure.
Preferably, the track is provided with a plurality of foundation jacks, and the foundation jacks are positioned between the supports on the bottom surfaces of the two sides of the waterproof structure.
Preferably, the drain pipe is made of hard materials.
Preferably, the waterproof structure is also provided with a driving device, and the driving device is connected with a pulley on a support.
The beneficial effects of the invention are as follows:
1. A drainage space is formed between the waterproof structure and the lining structure and is used as a drainage channel of water leakage in the shield tunnel, so that the waterproof performance is effectively improved, the waterproof structure is separated from the lining structure, interference of the shield tunnel is avoided, and the operation and maintenance stability is high;
2. The pulley and the track are arranged, so that the waterproof structure can move in the shield tunnel, can be arranged in a specific area in the shield tunnel according to actual conditions, is easy to replace after failure, and has high flexibility;
3. the waterproof board is installed through the sliding locking mechanism, so that the waterproof board can move in the horizontal direction perpendicular to the shield tunnel, when the waterproof structure moves, the locking screw is loosened, the contact part of the side surface of the waterproof board and the inner wall of the lining structure is separated, and friction interference between the waterproof board and the lining structure can be avoided;
4. at least one layer of waterproof spray film is arranged in the waterproof structure and is used as a waterproof secondary barrier, so that the waterproof and drainage effects of the whole structure are enhanced.
Drawings
FIG. 1 is a front view of a water-repellent structure of the present invention;
FIG. 2 is an enlarged view of region B of FIG. 1;
FIG. 3 is an enlarged view of area A of FIG. 1;
FIG. 4 is a perspective view of the waterproof and drainage structure of the present invention;
FIG. 5 is a schematic structural view of the waterproof board of the present invention;
FIG. 6 is a side view of the drainage structure of the present invention;
Fig. 7 is a schematic structural view of the waterproof sealing gasket of the present invention.
Labeling and describing: 1. lining structure, 2, waterproof construction, 3, a mouthful word spare, 4, support, 5, side sill, 6, track, 7, drain pipe, 8, anticollision wall, 9, water drainage canal, 10, waterproof spouting membrane, 11, waterproof board, 12, waterproof rubber pad, 13, outlet, 14, locking screw, 15, locking groove, 16, foundation jack, 17, drive arrangement, 18, waterproof sealing washer.
Detailed Description
Referring to fig. 1-5, a waterproof and drainage structure of a shield tunnel is disclosed, the shield tunnel comprises a lining structure 1 and a mouth word piece 3 arranged at the bottom of the lining structure 1, the lining structure 1 is formed by splicing duct pieces along the circumferential direction and the longitudinal direction of the shield tunnel, the mouth word piece 3 is used for providing evacuation space, pipeline arrangement space and equipment arrangement space, anti-collision walls 8 extending along the longitudinal direction of the shield tunnel are arranged on two sides of the mouth word piece 3, the anti-collision walls 8 are used for protecting the stability of the lining structure 1, the waterproof structure 2 is an arc-shaped concrete slab with the radius smaller than the lining structure 1 and the length not larger than the lining structure 1, a drainage space is formed between the waterproof structure 2 and the lining structure 1, two ends of two side end faces of the waterproof structure 2 are respectively provided with a support 4, the support 4 and the waterproof structure 2 are connected through a lower longitudinal beam 5, the pressure of the waterproof structure 2 is evenly transmitted to the support 4, two sides of the drainage space are respectively sealed through waterproof plates 11, two end faces of the drainage space are respectively sealed through waterproof sealing gaskets 18, a plurality of drainage channels 9 are arranged on the inner sides of the anti-collision walls 8, the bottoms of the waterproof plates 11 are connected with the drainage pipes 7 along the longitudinal direction, and the drainage pipes 7 are communicated with the anti-collision walls 8 through the waterproof structures, and the drainage channels 9.
The flashing 11 is provided with a drain opening 13 for mounting the drain pipe 7, and the shield tunnel is typically provided with a certain inclination, so that the flashing 11 is also provided with a certain inclination, and the water seepage flowing down the flashing 2 will flow down the flashing 11 and fall into the drain opening 13 and then along with the drain pipe 7 into the drain canal 9. When the drain pipe 7 is blocked, the drain pipe can be replaced at any time. The waterproof sealing gasket 18 is made of rubber material, and is designed to be wedge-shaped along the longitudinal direction of the shield tunnel, so that the waterproof sealing gasket is easy to install and embed into a drainage space.
And a drainage space is formed between the waterproof structure 2 and the lining structure 1 and is used as a drainage channel of water leakage in the shield tunnel, so that the waterproof performance is effectively improved, and the waterproof structure 2 is separated from the lining structure 1, so that the interference of the shield tunnel is avoided, and the operation and maintenance stability is high.
Referring to fig. 3, at least one layer of waterproof spray film 10 is disposed in the waterproof structure 2, and waterproof coatings are disposed on the inner and outer surfaces of the waterproof structure 2. In actual selection, a layer of waterproof spray film 10 is arranged in the waterproof structure 2, the waterproof structure 2 is prefabricated in advance, and the waterproof spray film 10 is cast in the middle layer of the waterproof structure 2. The waterproof spray film 10 serves as a waterproof secondary barrier, enhancing the waterproof and drainage effects of the entire structure.
Be equipped with the pulley on the support 4, the anti-collision wall 8 up end is equipped with supplies the rolling track 6 of pulley, and the length of track 6 is not greater than the length of lining structure 1, and sufficient length can be laid in advance to track 6, also can erect when removing waterproof structure 2, through setting up pulley and track 6, makes waterproof structure 2 can remove in the shield tunnel, can arrange in shield tunnel specific area according to actual conditions, easily change after the inefficacy, and the flexibility ratio is high.
Preferably, the drain pipe 7 is made of a hard material. The strength of the hard pipe is higher, and when the waterproof structure 2 moves, the drain pipe 7 moves synchronously while being attached to the anti-collision wall 8, and the hard pipe cannot bend, so that blockage is avoided.
The waterproof plates 11 on two sides of the drainage space are respectively connected with the end surfaces on two sides of the waterproof structure 2 through the sliding locking mechanism, so that the waterproof plates 11 have the freedom of horizontal movement. The number of the sliding locking mechanisms is at least two, and when the sliding locking mechanisms are actually selected, the sliding locking mechanisms are respectively positioned at two ends of the waterproof board 11, so that the sliding locking mechanisms are easy to control. The sliding locking mechanism comprises a locking screw 14 and a locking groove 15 on the waterproof board 11, the locking screw 14 is in threaded connection with the waterproof structure 2, the locking groove 15 is perpendicular to the shield tunnel, and the locking screw 14 penetrates through the locking groove 15 and is connected with the waterproof structure 2 to press the waterproof board 11 on the bottom surface of the waterproof structure 2.
In specific use, the locking screw 14 is loosened, the waterproof board 11 is close to or far away from the inner wall of the lining structure, and the locking screw 14 is screwed. The waterproof board 11 is installed through the sliding locking mechanism, so that the waterproof board can move in the horizontal direction perpendicular to the shield tunnel, when the waterproof structure 11 moves, the waterproof sealing gaskets 18 at the two ends of the drainage space are removed firstly, and then the locking screw 14 is loosened, so that the contact part of the side surface of the waterproof board 11 and the inner wall of the lining structure 2 is separated, and friction interference between the waterproof board 11 and the lining structure can be avoided. Waterproof rubber pad 12 has all been stuck to waterproof board 11 up end and outside, screws down locking screw 14 after, waterproof rubber pad 12 compresses tightly lining structure 1 inner wall and waterproof structure 2 bottom surface, optimizes the leakproofness in drainage space, prevents to appear the seepage.
Referring to fig. 6, preferably, the track 6 is provided with a plurality of foundation jacks 16, and the foundation jacks 16 are located between the supports 4 on the bottom surfaces of two sides of the waterproof structure 2, and are used for supporting the waterproof structure 2, so as to play a reinforcing role and avoid deformation or fracture of the waterproof structure 2. The number of foundation jacks 16 is selected according to the actual length of the waterproof structure 2.
As shown in fig. 6, preferably, the waterproof structure 2 is further provided with a driving device 17, and the driving device 17 is connected with a pulley on a support 4 thereof. The driving device 17 is used for driving the pulley to rotate, so as to drive the waterproof structure 2 to move, and compared with manual pushing, the efficiency is higher.
Of course, the above embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so that all equivalent modifications made in the principles of the present invention are included in the scope of the present invention.
Claims (6)
1. The utility model provides a shield tunnel's waterproof and drainage structure, shield tunnel includes lining structure (1) and sets up mouth word spare (3) in lining structure (1) bottom, and lining structure (1) are formed by the section of jurisdiction along shield tunnel hoop and vertical concatenation, and mouth word spare (3) are used for providing evacuation space, pipeline arrangement space and equipment arrangement space, and mouth word spare (3) both sides are equipped with along shield tunnel longitudinal extension's anticollision wall (8), its characterized in that: the waterproof structure (2) is an arc concrete slab with the radius smaller than that of the lining structure (1) and the length not larger than that of the lining structure (1), a drainage space is formed between the waterproof structure (2) and the lining structure (1), two ends of the bottom surfaces of two sides of the waterproof structure (2) are respectively provided with a support (4), the supports (4) and the waterproof structure (2) are fixedly connected through a lower longitudinal beam (5), the bottom surfaces of two sides of the drainage space are respectively sealed through waterproof plates (11), the end surfaces of two ends of the drainage space are respectively sealed through waterproof sealing gaskets (18), drainage channels (9) are arranged on the inner sides of the anti-collision walls (8), the bottoms of the waterproof plates (11) are connected with a plurality of drainage pipes (7) longitudinally arranged along the shield tunnel, and the drainage pipes (7) penetrate through gaps between the waterproof structure (2) and the anti-collision walls (8) and are communicated with the drainage channels (9);
The support (4) is provided with pulleys, the upper end face of the anti-collision wall (8) is provided with a track (6) for the pulleys to roll, the length of the track (6) is not greater than that of the lining structure (1), and waterproof plates (11) on two sides of the drainage space are respectively connected with the bottom surfaces on two sides of the waterproof structure (2) through sliding locking mechanisms;
at least one layer of waterproof spray film (10) is arranged in the waterproof structure (2), and waterproof coatings are arranged on the inner surface and the outer surface of the waterproof structure (2).
2. The waterproof and drainage structure of a shield tunnel according to claim 1, wherein: the sliding locking mechanisms are at least two groups, each sliding locking mechanism comprises a locking screw (14) and a locking groove (15) on the waterproof board (11), the locking screws (14) are in threaded connection with the waterproof structure (2), the locking grooves (15) are perpendicular to the shield tunnel, and the locking screws (14) penetrate through the locking grooves (15) and are connected with the waterproof structure (2) to compress the waterproof board (11) on the bottom surface of the waterproof structure (2).
3. The waterproof and drainage structure of a shield tunnel according to claim 2, wherein: waterproof rubber pads (12) are adhered to the upper end face and the outer side of the waterproof plate (11).
4. A shield tunnel waterproof and drainage structure according to any one of claims 1 to 3, wherein: the track (6) is provided with a plurality of foundation jacks (16), and the foundation jacks (16) are positioned between the supports (4) on the bottom surfaces of the two sides of the waterproof structure (2).
5. A shield tunnel waterproof and drainage structure according to any one of claims 1 to 3, wherein: the drain pipe (7) is made of hard materials.
6. A shield tunnel waterproof and drainage structure according to any one of claims 1 to 3, wherein: the waterproof structure (2) is also provided with a driving device (17), and the driving device (17) is connected with a pulley on a support (4) thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910651944.8A CN110410144B (en) | 2019-07-18 | 2019-07-18 | Waterproof and drainage structure of shield tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910651944.8A CN110410144B (en) | 2019-07-18 | 2019-07-18 | Waterproof and drainage structure of shield tunnel |
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| CN110410144A CN110410144A (en) | 2019-11-05 |
| CN110410144B true CN110410144B (en) | 2024-05-10 |
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| CN201910651944.8A Active CN110410144B (en) | 2019-07-18 | 2019-07-18 | Waterproof and drainage structure of shield tunnel |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111188648A (en) * | 2020-03-24 | 2020-05-22 | 西安建筑科技大学 | Tunnel water-proof and drainage system and construction method thereof |
| CN112343603A (en) * | 2020-09-30 | 2021-02-09 | 中交第二公路勘察设计研究院有限公司 | Comprehensive construction method suitable for tunneling of shield tunnel with ultra-large section |
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| CN110410144A (en) | 2019-11-05 |
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