Tunnel lining construction joint waterproof and drainage structure

Abstract

The utility model relates to the technical field of tunnel construction, in particular to a tunnel lining construction joint waterproof and drainage structure which comprises a tunnel primary lining, a concave-convex waterproof plate is arranged on one side of the tunnel primary lining and comprises a waterproof plate body arranged on the outer side of the tunnel primary lining, and a plurality of sets of connecting bosses are fixedly connected to the top end of the waterproof plate body. The interior of the connecting boss is in threaded connection with a threaded cylinder, the top end of the threaded cylinder is fixedly connected with a connecting nail, the top end of the waterproof plate body is fixedly connected with a plurality of sets of protruding hot melting gaskets, the bottom end of the waterproof plate body is provided with a plurality of sets of reinforcing grooves, and the reinforcing grooves correspond to the connecting boss in position. Through the cooperation of the tunnel primary lining and the concave-convex waterproof plate, the threaded cylinder drives the connecting nail to move towards the interior of the tunnel primary lining from the interior of the connecting boss, and then the connecting nail penetrates through the tunnel primary lining and the geotechnical cloth to improve the cohesiveness among the tunnel primary lining, the geotechnical cloth and the connecting nail. And connection between the elastic fastening blocks and the reinforcing grooves is facilitated through cooperation of the reinforcing grooves and the elastic fastening blocks.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, in particular to a tunnel lining construction joint anti-drainage structure. Background Art

[0002] Tunnel waterproofing and drainage refers to the waterproofing and drainage measures implemented to prevent tunnel construction from damage caused by water leakage, which could endanger traffic safety, corrode equipment within the tunnel, and reduce the service life of the structure. This is a comprehensive process that involves factors such as topography, climate, engineering strata and hydrogeology, structural design, construction methods, and material properties.

[0003] After searching, the patent document with announcement number CN216198171U proposes a new type of tunnel lining construction joint anti-drainage structure: the utility model discloses a new type of tunnel lining construction joint anti-drainage structure, which relates to the field of tunnel construction joint drainage structure, including tunnel primary support, geotextile, waterproof board, concave-convex anti-drainage board, secondary lining and drainage pipe. The tunnel primary support is cast on the tunnel wall and is used for the initial support of the tunnel wall after tunnel excavation. The outer wall of the tunnel primary support is paved with geotextile, the outer wall of the geotextile is provided with a waterproof board, the outer wall of the waterproof board is bonded with a concave-convex anti-drainage board, and the outer wall of the concave-convex anti-drainage board is cast with a secondary lining. A drainage outlet is opened at the short side wall of the secondary lining. One end of the drainage pipe passes through the drainage outlet and extends to the gap between the waterproof board and the concave-convex anti-drainage board and is connected to the gap. The other end of the drainage pipe extends into the drainage ditch. The drainage pipe is used to drain water that penetrates the gap between the waterproof board and the concave-convex anti-drainage board to the drainage ditch.

[0004] During use of the above technical solution, since the concrete of the secondary lining is directly poured on the waterproof board, the bonding effect between the waterproof board and the secondary lining is poor. During long-term use, it is easy to deform or crack, and there is a risk of water seepage.

[0005] Therefore, it is necessary to invent a tunnel lining construction joint anti-drainage structure to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a tunnel lining construction joint anti-drainage structure, which improves the connection effect between the tunnel primary lining and the concave-convex waterproof plate through the cooperation between the two, so as to solve the problems of easy deformation or rupture and the risk of water seepage in the prior art.

[0007] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a tunnel lining construction joint waterproofing structure, comprising a tunnel primary lining, a concave-convex waterproof plate provided on one side of the tunnel primary lining, the concave-convex waterproof plate comprising a waterproof plate body provided on the outside of the tunnel primary lining, the top of the waterproof plate body being fixedly connected with a plurality of connecting bosses, the internal threads of the connecting bosses being connected with threaded barrels, the top of the threaded barrels being fixedly connected with connecting nails, the top of the waterproof plate body being fixedly connected with a plurality of raised hot-melt washers, the bottom end of the waterproof plate body being provided with a plurality of reinforcement grooves, the reinforcement grooves corresponding to the positions of the connecting bosses, and the connection nails being able to be inserted into the interior of the tunnel primary lining through the cooperation of the reinforcement grooves, the connecting bosses and the threaded barrels to improve the stability of the connection.

[0008] Preferably, a geotextile is fixedly connected to the outer side of the primary tunnel lining, and the connecting nails are inserted into the interior of the primary tunnel lining and the geotextile. The cooperation between the geotextile and the connecting nails makes the fit closer to improve the waterproof performance.

[0009] Preferably, a water channel is provided between the geotextile and the waterproof board body, and a drainage channel is provided below the water channel to guide the water flow to a designated location.

[0010] Preferably, an elastic fastening block is clamped inside the reinforcement groove, and a flow channel is opened on the outer side wall of the elastic fastening block. While reinforcing the connection between the elastic fastening block and the concave-convex waterproof plate, the flow channel on the surface of the elastic fastening block is used to guide the water flow.

[0011] Preferably, the elastic fastening block is fixedly connected to a back-attached waterstop on the side away from the concave-convex waterproof plate, and the back-attached waterstop is fixedly connected to a secondary lining on the side away from the primary lining of the tunnel, and the elastic fastening block is fixed by the back-attached waterstop.

[0012] Preferably, a plurality of annular grooves are provided on the outer side of the waterproof board body, and the drainage channel is provided inside the back-attached waterstop, and the annular grooves are used to guide water flow into the interior of the drainage channel.

[0013] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0014] Through the cooperation between the primary lining of the tunnel and the concave-convex waterproof board, the reinforcement groove is used to make it possible for the concave-convex waterproof board to be installed at the right time by rotating the threaded cylinder inside the reinforcement groove, so that the threaded cylinder drives the connecting nails inside the connecting boss to move toward the interior of the primary lining of the tunnel, thereby achieving the connection between the primary lining of the tunnel and the geotextile to improve the adhesion between the three, and the cooperation between the reinforcement groove and the elastic fastening block is used to facilitate the connection between the elastic fastening block and the reinforcement groove, so that water can enter the interior of the secondary lining through the waterway and the drainage channel and finally be discharged without affecting the structure of the concave-convex waterproof board. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0016] Figure 1 This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0017] Figure 2 This is a partial structural diagram of the concave-convex waterproof board of the present invention from a first-view perspective;

[0018] Figure 3 This is a partial structural diagram of the concave-convex waterproof board of the present invention from a second perspective;

[0019] Figure 4 This is a schematic diagram of the internal side structure of the secondary lining of the present invention.

[0020] Description of reference numerals:

[0021] 1. Tunnel primary lining; 2. Concave-convex waterproofing board; 201. Waterproofing board body; 202. Connecting boss; 203. Threaded barrel; 204. Connecting nail; 205. Waterway; 206. Reinforcement groove; 207. Raised hot-melt gasket; 3. Geotextile; 4. Elastic fastening block; 5. Back-attached waterstop; 6. Secondary lining; 7. Annular groove; 8. Drainage channel. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0023] The utility model provides Figure 1-4The tunnel lining construction joint waterproofing structure shown in the figure includes a tunnel primary lining 1, a concave-convex waterproof plate 2 is provided on one side of the tunnel primary lining 1, the concave-convex waterproof plate 2 includes a waterproof plate body 201 provided on the outside of the tunnel primary lining 1, the top of the waterproof plate body 201 is fixedly connected with a plurality of connecting bosses 202, the internal thread of the connecting boss 202 is connected with a threaded barrel 203, the top of the threaded barrel 203 is fixedly connected with a connecting nail 204, and the connecting nail 204 is moved by rotating the threaded barrel 203, the top of the waterproof plate body 201 is fixedly connected with a plurality of raised hot-melt washers 207, and the bottom of the waterproof plate body 201 is provided with a plurality of reinforcing Groove 206, the reinforcement groove 206 corresponds to the position of the connecting boss 202. Through the cooperation of the reinforcement groove 206, the connecting boss 202 and the threaded cylinder 203, the connecting nail 204 can be inserted into the interior of the tunnel primary lining 1 to improve the stability of the connection. The outer side of the tunnel primary lining 1 is fixedly connected with the geotextile 3. The connecting nail 204 is inserted into the interior of the tunnel primary lining 1 and the geotextile 3. Through the cooperation of the geotextile 3 and the connecting nail 204, the fit is tighter to improve the waterproof performance. A waterway 205 is provided between the geotextile 3 and the waterproof board body 201. A drainage channel 8 is connected below the waterway 205, and the drainage channel 8 is used to guide the water flow to the designated position.

[0024] Refer to the instruction manual Figure 1-4 , an elastic fastening block 4 is clamped inside the reinforcement groove 206, and a flow channel is opened on the outer wall of the elastic fastening block 4. While reinforcing the connection between the elastic fastening block 4 and the concave-convex waterproof plate 2, the flow channel on the surface of the elastic fastening block 4 is used to guide the water flow. The side of the elastic fastening block 4 away from the concave-convex waterproof plate 2 is fixedly connected with a back-attached waterstop 5, and the side of the back-attached waterstop 5 away from the primary lining 1 of the tunnel is fixedly connected with a secondary lining 6. The elastic fastening block 4 is fixed by the back-attached waterstop 5. Several groups of annular grooves 7 are opened on the outside of the waterproof plate body 201, and a drainage channel 8 is opened inside the back-attached waterstop 5. The annular groove 7 is used to guide the water flow into the interior of the drainage channel 8, and passes through the primary lining 1 of the tunnel. In cooperation with the concave-convex waterproof board 2, the reinforcement groove 206 is used to enable the concave-convex waterproof board 2 to be installed at the right time, so that the threaded cylinder 203 can be rotated through the inside of the reinforcement groove 206, so that the threaded cylinder 203 drives the connecting nail 204 to move inside the connecting boss 202 toward the inside of the tunnel primary lining 1, thereby realizing that the connecting nail 204 penetrates the tunnel primary lining 1 and the geotextile 3 to improve the adhesion between the three, and the cooperation between the reinforcement groove 206 and the elastic fastening block 4 is convenient for the connection between the elastic fastening block 4 and the reinforcement groove 206, so that it can allow the water flow to enter the interior of the secondary lining 6 through the waterway 205 and the drainage channel 8 and finally be discharged without affecting the structure of the concave-convex waterproof board 2.

[0025] This utility works as follows:

[0026] Refer to the instruction manual Figure 1-4When it is necessary to install the structure outside the construction joint, the geotextile 3 is first combined with the tunnel primary lining 1, and then the waterproof board body 201 is attached to the outside of the geotextile 3. The threaded cylinder 203 can be rotated inside the reinforcement groove 206 to make the threaded cylinder 203 drive the connecting nail 204 to move inside the connecting boss 202 toward the inside of the tunnel primary lining 1, thereby achieving the connection nail 204 penetrating the tunnel primary lining 1 and the geotextile 3 to improve the adhesion between the three, and the cooperation between the reinforcement groove 206 and the elastic fastening block 4 is utilized to facilitate the connection between the elastic fastening block 4 and the reinforcement groove 206, so that it can allow the water flow to enter the interior of the secondary lining 6 through the waterway 205 and the drainage channel 8 without affecting the structure of the concave-convex waterproof board 2. And finally be discharged.

[0027] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A tunnel lining construction joint drainage structure, comprising a tunnel primary lining (1), characterized in that: A concave-convex waterproof plate (2) is provided on one side of the tunnel primary lining (1), and the concave-convex waterproof plate (2) comprises a waterproof plate body (201) provided on the outside of the tunnel primary lining (1), the top end of the waterproof plate body (201) is fixedly connected with a plurality of connection bosses (202), the internal thread of the connection boss (202) is connected with a threaded barrel (203), the top end of the threaded barrel (203) is fixedly connected with a connection nail (204), the top end of the waterproof plate body (201) is fixedly connected with a plurality of raised hot-melt washers (207), and the bottom end of the waterproof plate body (201) is provided with a plurality of reinforcement grooves (206), and the reinforcement grooves (206) correspond to the positions of the connection bosses (202).

2. A tunnel lining construction joint anti-drainage structure according to claim 1, characterized in that: The outer side of the tunnel primary lining (1) is fixedly connected to a geotextile (3), and the connecting nails (204) are inserted into the interior of the tunnel primary lining (1) and the geotextile (3).

3. A tunnel lining construction joint anti-drainage structure according to claim 2, characterized in that: A waterway (205) is provided between the geotextile (3) and the waterproof board body (201), and a drainage channel (8) is communicated below the waterway (205).

4. The tunnel lining construction joint anti-drainage structure according to claim 1, characterized in that: An elastic fastening block (4) is clamped inside the reinforcement groove (206), and a flow channel is provided on the outer side wall of the elastic fastening block (4).

5. The tunnel lining construction joint anti-drainage structure according to claim 4, characterized in that: The side of the elastic fastening block (4) away from the concave-convex waterproof plate (2) is fixedly connected to a back-attached waterstop (5), and the side of the back-attached waterstop (5) away from the tunnel primary lining (1) is fixedly connected to a secondary lining (6).

6. The tunnel lining construction joint anti-drainage structure according to claim 3, characterized in that: The outer side of the waterproof board body (201) is provided with a plurality of annular grooves (7), and the drainage channel (8) is provided inside the back-attached waterstop (5).

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