CN112682074A - Tunnel waterproof structure and construction method thereof - Google Patents
Tunnel waterproof structure and construction method thereof Download PDFInfo
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- CN112682074A CN112682074A CN202110068049.0A CN202110068049A CN112682074A CN 112682074 A CN112682074 A CN 112682074A CN 202110068049 A CN202110068049 A CN 202110068049A CN 112682074 A CN112682074 A CN 112682074A
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- waterproof
- tunnel
- supporting
- guide groove
- supporting beam
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Abstract
The invention discloses a tunnel waterproof structure, which comprises a plurality of waterproof areas arranged along the depth direction of a tunnel, wherein each waterproof area comprises a plurality of waterproof boards connected end to end, supporting parts are arranged at two ends of the top of each waterproof board, a flow guide groove is arranged in the middle of each waterproof board, a waterproof membrane is laid at the joint of adjacent flow guide grooves, an inclined plane part is arranged between each flow guide groove and each supporting part, a supporting beam is arranged below each waterproof board and is positioned right below each flow guide groove, two ends of each supporting beam are fixed through a support, a drain pipe connected with the flow guide groove of the outermost waterproof board is arranged on each support, the supporting parts are contacted with the top of the tunnel, concrete prefabricated holes corresponding to the supporting parts one by one are arranged at the top of the tunnel, limit nuts are arranged in the concrete prefabricated holes, and fixing bolts penetrate through the supporting. The invention can improve the defects of the prior art, integrates tunnel supporting and waterproof construction into a whole, and simplifies the tunnel excavation construction process.
Description
Technical Field
The invention relates to the technical field of tunnel excavation construction, in particular to a tunnel waterproof structure and a construction method thereof.
Background
In the process of excavating the tunnel, if the moisture content of the geological environment is high, the problem that the tunnel enters water due to the fact that underground water invades an excavation surface can occur. In order to ensure the smooth construction, the tunnel needs to be subjected to waterproofing treatment. In the prior art, the support and the water prevention of the tunnel are two independent systems, and separate independent construction is needed, so that the construction structure in the tunnel is complex, and the construction period is long.
Disclosure of Invention
The invention aims to provide a tunnel waterproof structure and a construction method thereof, which can overcome the defects of the prior art, combine tunnel supporting and waterproof construction into a whole and simplify the tunnel excavation construction process.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows.
The utility model provides a tunnel waterproof construction, include the waterproof district of a plurality of that sets up along the tunnel direction of advancing, every waterproof district includes a plurality of waterproof board of end to end connection, the top both ends of waterproof board are provided with the supporting part, be provided with the guiding gutter in the middle of the waterproof board, the water proof membrane has been laid to the junction of adjacent guiding gutter, be provided with inclined plane portion between guiding gutter and the supporting part, a supporting beam is installed to the waterproof board below, it is located the guiding gutter under to prop up a supporting beam, it is fixed that the support frame is passed through at a supporting beam's both ends, install the drain pipe that links to each other with the guiding gutter of the waterproof board in the outside on the support frame, the supporting part contacts with the tunnel top, the tunnel top is provided with the precast hole of concrete with the supporting part one-.
Preferably, a sealing ring is arranged on the outer side of the waterproof membrane, and a mounting groove which is in sealed insertion connection with the sealing ring is formed in the supporting beam.
Preferably, the limiting nut comprises two nut pieces with internal threads, and the two nut pieces are connected through a rubber pad.
Preferably, the top of the fixing bolt is provided with a conical part, and the fixing bolt is internally provided with an axial pouring hole.
Preferably, the included angle between the axial direction of the concrete prefabricated hole and the supporting beam is 80 degrees, a steel cable is connected between the two fixing bolts on the same waterproof plate, a through hole for penetrating the steel cable is formed in the supporting beam, and a locking bolt is connected to the bottom of the through hole in a threaded mode.
The construction method of the tunnel waterproof structure comprises the following steps:
A. manufacturing a concrete prefabricated hole at the top of the tunnel, and installing a limit nut;
B. fixing the waterproof plate on the top of the tunnel by using a fixing bolt;
C. laying a waterproof film at the joint of the guide grooves on the waterproof board;
D. the supports are fixed on two sides of the tunnel, and the support beams are arranged on the supports.
Adopt the beneficial effect that above-mentioned technical scheme brought to lie in: the invention utilizes the waterproof board to carry out waterproof treatment on the tunnel, and simultaneously, the waterproof board is matched with the supporting beam and the bracket to synchronously carry out supporting treatment on the tunnel, thereby greatly simplifying the construction process of the tunnel. The waterproof board can concentrate and guide the water flow to the seeped underground water through the guide grooves, so that the laying area of the waterproof film can be reduced. Meanwhile, the sealing ring is used for sealing and protecting the waterproof membrane, so that the waterproof membrane can be effectively protected, and meanwhile, the sealing ring can also realize the second-level waterproof effect when the waterproof membrane is damaged. The fixing bolt is used for reinforcing and positioning the waterproof plate, and the structure of the limiting nut can reduce the radial torsional force generated by the fixing bolt. The fixing bolt is installed in an inclined mode, and forms a triangular fixing structure after being connected with the steel cable, so that the strength of the whole waterproof supporting structure is improved. The locking bolt can be used for clamping the steel cable and adjusting the tension of the steel cable.
Drawings
Fig. 1 is an overall schematic view of a waterproof structure in one embodiment of the present invention.
Fig. 2 is a structural view of a mounting position of a waterproof board and a support beam according to an embodiment of the present invention.
In the figure: 1. a waterproof sheet; 2. a support portion; 3. a diversion trench; 4. an inclined plane part; 5. a water-resistant film; 6. a support beam; 7. a support; 8. a drain pipe; 9. prefabricating holes in concrete; 10. fixing the bolt; 11. a limit nut; 12. a seal ring; 13. mounting grooves; 14. a nut slice; 15. a rubber pad; 16. a tapered portion; 17. pouring holes; 18. a wire rope; 19. a through hole; 20. and locking the bolt.
Detailed Description
The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description and the description of the attached drawings, and the specific connection mode of each part adopts the conventional means of mature bolts, rivets, welding, sticking and the like in the prior art, and the detailed description is not repeated.
Referring to fig. 1-2, a specific embodiment of the present invention includes a plurality of waterproof regions arranged along a depth direction of a tunnel, each waterproof region includes a plurality of waterproof boards 1 connected end to end, supporting portions 2 are arranged at two ends of a top of each waterproof board 1, a flow guide groove 3 is arranged in the middle of each waterproof board 1, a waterproof membrane 5 is laid at a joint of adjacent flow guide grooves 3, an inclined plane portion 4 is arranged between each flow guide groove 3 and each supporting portion 2, a supporting beam 6 is arranged below each waterproof board 1, the supporting beam 6 is positioned right below each flow guide groove 3, two ends of each supporting beam 6 are fixed by a bracket 7, a drain pipe 8 connected with each flow guide groove 3 of the outermost waterproof board 1 is arranged on each bracket 7, the supporting portions 2 are in contact with the top of the tunnel, concrete prefabricated holes 9 corresponding to the supporting portions 2 one by one are arranged on the top of the tunnel, a limit nut 11 is arranged in each concrete prefabricated hole 9, and a fixing. The outer side of the waterproof membrane 5 is provided with a sealing ring 12, and the supporting beam 6 is provided with a mounting groove 13 which is in sealed insertion connection with the sealing ring 12. The limiting nut 11 comprises two nut pieces 14 with internal threads, and the two nut pieces 14 are connected through a rubber pad 15. The top of the fixing bolt 10 is provided with a tapered portion 16, and an axial casting hole 17 is formed in the fixing bolt 10. The included angle between the axial direction of the concrete prefabricated hole 9 and the supporting beam 6 is 80 degrees, a steel cable 18 is connected between two fixing bolts 10 on the same waterproof plate 1, a through hole 19 for passing the steel cable 18 is formed in the supporting beam 6, and a locking bolt 20 is connected to the bottom of the through hole 19 in a threaded mode.
The construction method of the tunnel waterproof structure is characterized by comprising the following steps of:
A. manufacturing a concrete prefabricated hole 9 at the top of the tunnel, and installing a limit nut 11;
B. fixing the waterproof plate 1 on the top of the tunnel by using a fixing bolt 10; after the fixing bolts 10 are installed, concrete is poured into the concrete prefabricated holes 9 again through the pouring holes 17 until the concrete overflows from the concrete prefabricated holes 9;
C. laying a waterproof film 5 at the joint of the guide grooves 3 on the waterproof board 1;
Finally, two fixing bolts 10 on the same flashing 1 are connected using a wire rope 18, the wire rope 18 is passed through the through hole 19, and the tension of the wire rope 18 is adjusted by means of a locking bolt 20. When the tension of the wire rope 18 is changed during the tunnel construction, the tension of the wire rope 18 is adjusted again by adjusting the locking bolt 20.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a tunnel waterproof construction which characterized in that: comprises a plurality of waterproof areas arranged along the depth direction of a tunnel, each waterproof area comprises a plurality of waterproof boards (1) connected end to end, supporting parts (2) are arranged at two ends of the top of each waterproof board (1), a guide groove (3) is arranged in the middle of each waterproof board (1), a waterproof membrane (5) is laid at the joint of the adjacent guide grooves (3), an inclined plane part (4) is arranged between each guide groove (3) and each supporting part (2), a supporting beam (6) is arranged below each waterproof board (1), the supporting beam (6) is positioned under each guide groove (3), two ends of each supporting beam (6) are fixed through a support (7), a drain pipe (8) connected with each guide groove (3) of the outermost waterproof board (1) is arranged on each support (7), the supporting parts (2) are contacted with the top of the tunnel, concrete prefabricated holes (9) corresponding to the supporting parts (2) one by one are arranged at the top of the tunnel, and a limiting nut (11) is installed in the concrete prefabricated hole (9), and a fixing bolt (10) penetrates through the supporting part (2) and then is fixedly connected with the limiting nut (11).
2. The tunnel waterproofing structure according to claim 1, wherein: and a sealing ring (12) is arranged on the outer side of the waterproof membrane (5), and a mounting groove (13) which is in sealed insertion connection with the sealing ring (12) is arranged on the supporting beam (6).
3. The tunnel waterproofing structure according to claim 1, wherein: the limiting nut (11) comprises two nut pieces (14) with internal threads, and the two nut pieces (14) are connected through a rubber pad (15).
4. The tunnel waterproofing structure according to claim 3, wherein: the top of the fixing bolt (10) is provided with a conical part (16), and an axial pouring hole (17) is formed in the fixing bolt (10).
5. The tunnel waterproofing structure according to claim 4, wherein: the concrete prefabricated hole (9) is characterized in that the included angle between the axial direction of the concrete prefabricated hole and the supporting beam (6) is 80 degrees, a steel cable (18) is connected between two fixing bolts (10) on the same waterproof plate (1), a through hole (19) used for penetrating through the steel cable (18) is formed in the supporting beam (6), and a locking bolt (20) is connected to the bottom of the through hole (19) in a threaded mode.
6. A construction method of a tunnel waterproofing structure according to any one of claims 1 to 5, characterized by comprising the steps of:
A. manufacturing a concrete prefabricated hole (9) at the top of the tunnel, and installing a limit nut (11);
B. fixing the waterproof plate (1) at the top of the tunnel by using a fixing bolt (10);
C. laying a waterproof film (5) at the joint of the guide groove (3) on the waterproof board (1);
D. brackets (7) are fixed on two sides of the tunnel, and supporting beams (6) are arranged on the brackets (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110068049.0A CN112682074B (en) | 2021-01-19 | 2021-01-19 | Tunnel waterproof structure and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110068049.0A CN112682074B (en) | 2021-01-19 | 2021-01-19 | Tunnel waterproof structure and construction method thereof |
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| Publication Number | Publication Date |
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| CN112682074A true CN112682074A (en) | 2021-04-20 |
| CN112682074B CN112682074B (en) | 2023-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110068049.0A Active CN112682074B (en) | 2021-01-19 | 2021-01-19 | Tunnel waterproof structure and construction method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000064795A (en) * | 1998-08-25 | 2000-02-29 | Iwano Bussan Kk | Fixing device for hanging reinforcing bar fitting in waterproof sheet for tunnel work |
| CN203584438U (en) * | 2013-11-26 | 2014-05-07 | 曹宝珍 | Water-resisting and reinforcing support for tunnels |
| CN209040168U (en) * | 2018-10-25 | 2019-06-28 | 中铁九局集团第七工程有限公司 | A kind of subway tunnel side wall waterproof structure for deformation seams |
| CN210049913U (en) * | 2019-03-04 | 2020-02-11 | 中交三公局第二工程有限公司 | Intelligent stepping type tunnel entrance construction supporting device |
| CN111577320A (en) * | 2020-05-22 | 2020-08-25 | 河南城建学院 | High security civil engineering tunnel support |
| CN111827592A (en) * | 2020-07-21 | 2020-10-27 | 高飞飞 | Architectural design roof eaves mouth waterproof construction |
-
2021
- 2021-01-19 CN CN202110068049.0A patent/CN112682074B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000064795A (en) * | 1998-08-25 | 2000-02-29 | Iwano Bussan Kk | Fixing device for hanging reinforcing bar fitting in waterproof sheet for tunnel work |
| CN203584438U (en) * | 2013-11-26 | 2014-05-07 | 曹宝珍 | Water-resisting and reinforcing support for tunnels |
| CN209040168U (en) * | 2018-10-25 | 2019-06-28 | 中铁九局集团第七工程有限公司 | A kind of subway tunnel side wall waterproof structure for deformation seams |
| CN210049913U (en) * | 2019-03-04 | 2020-02-11 | 中交三公局第二工程有限公司 | Intelligent stepping type tunnel entrance construction supporting device |
| CN111577320A (en) * | 2020-05-22 | 2020-08-25 | 河南城建学院 | High security civil engineering tunnel support |
| CN111827592A (en) * | 2020-07-21 | 2020-10-27 | 高飞飞 | Architectural design roof eaves mouth waterproof construction |
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| Publication number | Publication date |
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| CN112682074B (en) | 2023-01-20 |
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