Externally-mounted drainage device for tunnel vault leakage water

Abstract

The utility model relates to the technical field of tunnel engineering leakage water treatment, in particular to a tunnel vault leakage water external installation type guiding and discharging device which comprises a water receiving tank, a slope-shaped water guiding base is arranged at the inner bottom of the water receiving tank, two sets of water outlet structures are arranged at the inner bottom of the water receiving tank, and each water outlet structure is provided with a plurality of water outlet holes. A water diversion slope is arranged above the multiple water outlet holes, drainage pipes are communicated with the lower portions of the multiple water outlet holes, two sets of water outlet structures are arranged at the inner bottom of the water receiving tank, each set comprises multiple water outlet holes, and the drainage speed can be increased; meanwhile, the lowest ends of the slope-shaped water diversion base and the auxiliary water diversion bases face the corresponding water outlet holes, water flow can be guided to rapidly flow to the water outlet holes, the water outlet efficiency is further improved, due to the design, when much accumulated water is gathered, water can be rapidly discharged through the water outlet holes, the accumulated water is prevented from overflowing the groove body and dripping on the tunnel road surface, and the service life of the tunnel is prolonged. Therefore, tunnel traffic safety is guaranteed, and other facilities in the tunnel are prevented from being damaged.

Description

Technical Field

[0001] This utility model relates to the field of tunnel engineering seepage control technology, and in particular to an external drainage device for seepage in tunnel arch. Background Technology

[0002] Tunnel water leakage control refers to a series of repair and protection measures taken to address water leakage in tunnel structures caused by various reasons. The aim is to restore the tunnel's waterproof performance and ensure its structural safety and service life. Tunnel leakage not only affects the normal use of the tunnel but may also pose a threat to traffic safety. Long-term leakage can also accelerate the corrosion of the tunnel's internal structure and shorten its service life. The control process typically includes precise location of the leakage point, analysis of the leakage cause, development of a targeted repair plan, and subsequent waterproofing effect testing and long-term maintenance planning. Through scientific and effective water leakage control, the tunnel's waterproofing capacity can be significantly improved, ensuring the safe operation of the tunnel.

[0003] Existing patent CN221742708U discloses an external drainage device for water leakage in tunnel arches, including a water receiving trough. The water receiving trough includes a trough body, which is located below the water leakage point in the tunnel arch. The trough body has a gap with the tunnel arch lining structure and is fixedly connected to the tunnel arch lining structure. The lower part of the trough body is connected to a water outlet pipe, which is fixedly connected to a drainage pipe. The drainage pipe extends downward along the inner surface of the tunnel lining structure to the corner and is connected to the tunnel drainage system.

[0004] However, in the aforementioned existing technologies, since the water receiving tank has only one outlet and the overall water discharge efficiency of the water receiving tank is relatively slow, it cannot quickly drain when a large amount of water accumulates, causing the water to easily overflow the tank and drip directly onto the tunnel surface. This not only affects the safety of tunnel traffic but may also damage other facilities inside the tunnel. Utility Model Content

[0005] The purpose of this utility model is to provide an external drainage device for water leakage in tunnel arches, which aims to solve the technical problem in the prior art where the water receiving tank has only one outlet and the overall water discharge efficiency of the water receiving tank is slow. As a result, when a large amount of water accumulates, it cannot be discharged quickly, causing the water to easily overflow the tank and drip directly onto the tunnel surface. This not only affects the safety of tunnel traffic but may also damage other facilities inside the tunnel.

[0006] To achieve the above objectives, this utility model employs an external drainage device for tunnel arch seepage, comprising a water receiving trough. The inner bottom of the water receiving trough is provided with a sloping water intake seat. The inner bottom of the water receiving trough has two sets of water outlet structures, each consisting of multiple water outlet holes. Above each of the multiple water outlet holes is a water-guiding slope, and below each of the multiple water outlet holes is a drain pipe. The drain pipe is installed on the inner wall of the lining structure via a semi-circular clip, and the outlet end of the drain pipe extends directly above the drainage trough of the lining structure. The water receiving trough is installed directly below the seepage point of the lining structure via angle brackets and bolts.

[0007] The two sets of water outlet structures are symmetrically arranged on both sides of the sloping water inlet seat, and the lowest end of the sloping water inlet seat is arranged towards the direction of the plurality of water outlet holes.

[0008] The water receiving tank has multiple auxiliary water inlet seats at its four inner bottom feet, with the lowest point of each auxiliary water inlet seat facing the corresponding water outlet.

[0009] The external drainage device for seepage water in the tunnel arch also includes two side sealing plates and multiple long screws. Nuts are provided at both ends of the long screws. The two side sealing plates are supported by the water receiving trough through the multiple long screws and are symmetrically arranged on both sides of the water receiving trough. The multiple long screws all penetrate the water receiving trough, and the nuts support the outer end face of the corresponding side sealing plate.

[0010] The inner end face of the side sealing plate is provided with a sealing strip, and both sides of the water receiving tank have sealing grooves, with the sealing strip abutting within the sealing grooves.

[0011] This utility model discloses an external drainage device for seepage in a tunnel arch, comprising a water receiving trough. The inner bottom of the trough has a sloping water intake seat. The inner bottom of the trough has two sets of water outlet structures, each consisting of multiple water outlet holes. Above each water outlet hole is a water-guiding slope, and below each water outlet hole is a drain pipe. The drain pipe is secured to the inner wall of the lining structure via a semi-circular clip, and its outlet end extends directly above the drainage channel of the lining structure. The water receiving trough is positioned directly below the seepage point in the lining structure using angle brackets and bolts. By providing two sets of water outlet structures, each with multiple water outlet holes, at the inner bottom of the trough, compared to a single outlet end, the multiple outlet holes increase the water flow channel. This design accelerates drainage. Furthermore, the sloping water inlet and the multiple auxiliary water inlets, with their lowest points facing the corresponding water outlets, help guide water flow quickly towards the outlets, further improving drainage efficiency. These designs ensure that when a large amount of water accumulates, it can be quickly discharged through multiple outlets, preventing overflow and dripping onto the tunnel surface. This ensures tunnel safety and prevents damage to other facilities within the tunnel. This approach solves the technical problem that because the water inlet has only one outlet and the overall drainage efficiency is slow, large amounts of water cannot be quickly discharged, causing overflow and dripping onto the tunnel surface, affecting tunnel safety and potentially damaging other facilities. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a cross-sectional view of the water receiving trough installed on the lining structure in this utility model.

[0014] Figure 2 This is the utility model Figure 1 A magnified view of a portion of point A in the middle.

[0015] Figure 3 This is a three-dimensional view of the water receiving tank in this utility model.

[0016] Figure 4 This is a schematic diagram of the water receiving tank in this utility model.

[0017] Figure 5 This is a schematic diagram of the structure of the side sealing plate in this utility model.

[0018] 1-Water receiving trough, 2-Sloping water intake seat, 3-Water outlet, 4-Water intake slope, 5-Drainage pipe, 6-Semi-circular buckle, 7-Drainage trough of lining structure, 8-Angle bracket, 9-Bolt, 10-Leakage point of lining structure, 11-Lining structure, 12-Auxiliary water intake seat, 13-Side sealing plate, 14-Long screw, 15-Nut, 16-Sealing strip, 17-Sealing groove. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0020] Please see Figures 1-5 This utility model provides an external drainage device for water leakage in tunnel arches, including a water receiving trough 1. The bottom of the water receiving trough 1 is provided with a sloping water intake seat 2. The bottom of the water receiving trough 1 has two sets of water outlet structures, and the water outlet structures are multiple water outlet holes 3. Above the multiple water outlet holes 3 is a water intake slope 4. The bottom of the multiple water outlet holes 3 is connected to a drain pipe 5. The drain pipe 5 is set on the inner wall of the lining structure 11 by a semi-circular buckle 6, and the water outlet end of the drain pipe 5 extends to the top of the drainage trough 7 of the lining structure. The water receiving trough 1 is set directly below the water leakage point 10 of the lining structure by an angle bracket 8 and a bolt 9.

[0021] In this embodiment, the sloping water inlet seat 2 allows seepage water to converge along it, facilitating subsequent drainage. The inner bottom has two sets of multiple water outlet holes 3, and the upper part has a water-guiding slope 4, which increases the water-receiving area and guides the water flow quickly towards the outlet holes 3. The multiple outlet holes 3 are connected to the drain pipe 5 below, and the drain pipe 5 is fixed to the inner wall of the lining structure 11 by a semi-circular buckle 6. The outlet end extends directly above the drainage trough 7 of the lining structure. This design allows seepage water to be discharged efficiently and directionally, preventing accumulation in the water-receiving trough 1. The water-receiving trough 1 is positioned directly below the seepage point 10 of the lining structure using angle brackets 8 and bolts 9, ensuring accurate installation and precise collection of seepage water. This effectively prevents seepage water from flowing freely, ensuring the dryness and safety of the tunnel structure.

[0022] Furthermore, the two sets of water outlet structures are symmetrically arranged on both sides of the slope-shaped water inlet seat 2, and the lowest end of the slope-shaped water inlet seat 2 is arranged in the direction of the plurality of water outlet holes 3.

[0023] In this embodiment, the symmetrical layout allows the water flow from the sloping water inlet 2 to flow more evenly and quickly to the water outlet structures on both sides, further improving drainage efficiency, avoiding local water accumulation caused by uneven water flow distribution, ensuring that leaked water can be discharged more smoothly from the water receiving tank 1, and enhancing the overall drainage performance of the device.

[0024] Furthermore, each of the four inner bottom feet of the water receiving tank 1 is provided with a plurality of auxiliary water inlet seats 12, and the lowest end of the auxiliary water inlet seats 12 is arranged in the direction of the corresponding water outlet 3.

[0025] In this embodiment, the auxiliary water inlet seat 12 can further guide the water flow at the bottom corner of the water receiving tank 1, so that the water flow that might otherwise be difficult to drain due to its low position can also flow smoothly to the water outlet 3. This effectively reduces the dead corners of water accumulation in the water receiving tank 1, improves the overall drainage capacity of the water receiving tank 1, and ensures that water can be drained quickly and effectively in various leakage situations, preventing water from accumulating in the water receiving tank 1.

[0026] Furthermore, the external drainage device for seepage water in the tunnel arch also includes two side sealing plates 13 and multiple long screws 14. Nuts 15 are provided at both ends of the long screws 14. The two side sealing plates 13 are supported by the water receiving trough 1 through the multiple long screws 14 and are symmetrically arranged on both sides of the water receiving trough 1. The multiple long screws 14 all penetrate the water receiving trough 1, and the nuts 15 support the outer end face of the corresponding side sealing plate 13.

[0027] In this embodiment, the two water receiving troughs 1 can be spliced ​​together without the side sealing plate 13 installed, thus adapting to water leakage points 10 of lining structures of different lengths, thereby improving the water receiving effect. When using one water receiving trough 1, the two sides of the water receiving trough 1 can be effectively sealed by the structure of the two side sealing plates 13 and the multiple long screws 14, preventing water leakage from overflowing from the side of the water receiving trough 1, thereby enhancing the sealing and overflow prevention capabilities of the device.

[0028] Furthermore, a sealing strip 16 is provided on the inner end face of the side sealing plate 13, and sealing grooves 17 are provided on both sides of the water receiving tank 1, with the sealing strip 16 abutting and disposed in the sealing grooves 17.

[0029] In this embodiment, the sealing strip 16 can effectively prevent water from seeping out from the gap between the two, ensuring that the device will not leak during the drainage process.

[0030] When using this utility model, first, according to the location of the water leakage point 10 in the lining structure, accurately install the water receiving trough 1 directly below the water leakage point using angle brackets 8 and bolts 9. The sloping water-guiding seat 2 at the bottom of the water receiving trough 1 allows the leaking water to converge. Two sets of water outlet structures symmetrically arranged on both sides of the sloping water-guiding seat 2 with their lowest ends facing the water outlet 3, together with the water-guiding inclined surface 4 above, can guide the water flow quickly to multiple water outlets 3. Multiple auxiliary water-guiding seats 12 are set at the four inner bottom feet of the water receiving trough 1, with their lowest ends facing the corresponding water outlets 3, further... The bottom water flow is guided through the outlet hole 3 and flows into the drain pipe 5 connected below. The drain pipe 5 is fixed to the inner wall of the lining structure 11 by a semi-circular buckle 6. The outlet end extends to the top of the drainage trough 7 of the lining structure, realizing the discharge of leaked water. This method solves the technical problem that the water receiving trough 1 has only one outlet end and the overall water discharge efficiency of the water receiving trough 1 is slow. As a result, when a lot of water accumulates, it cannot be discharged quickly, which makes it easy for the water to overflow the trough and drip directly onto the tunnel surface. This not only affects the traffic safety of the tunnel, but may also damage other facilities in the tunnel.

[0031] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. An externally mounted drainage device for water leakage in tunnel arches, characterized in that, The system includes a water receiving trough, the inner bottom of which is provided with a sloping water intake seat. The inner bottom of the water receiving trough has two sets of water outlet structures, and each water outlet structure has multiple water outlet holes. Above each of the multiple water outlet holes is a water-guiding slope, and below each of the multiple water outlet holes is a drain pipe. The drain pipe is set on the inner wall of the lining structure by a semi-circular buckle, and the water outlet end of the drain pipe extends directly above the drainage trough of the lining structure. The water receiving trough is set directly below the water leakage point of the lining structure by angle brackets and bolts.

2. The external drainage device for tunnel arch leakage as described in claim 1, characterized in that, The two sets of water outlet structures are symmetrically arranged on both sides of the sloping water inlet seat, and the lowest end of the sloping water inlet seat is arranged towards the direction of the plurality of water outlet holes.

3. The external drainage device for tunnel arch leakage as described in claim 2, characterized in that, The water receiving tank is provided with multiple auxiliary water inlet seats at each of the four inner bottom feet, and the lowest end of each auxiliary water inlet seat is set towards the corresponding water outlet.

4. The external drainage device for tunnel arch leakage as described in claim 3, characterized in that, The external drainage device for water leakage in the tunnel arch also includes two side sealing plates and multiple long screws. Nuts are provided at both ends of the long screws. The two side sealing plates are supported by the water receiving trough through the multiple long screws and are symmetrically arranged on both sides of the water receiving trough. The multiple long screws all penetrate the water receiving trough, and the nuts support the outer end face of the corresponding side sealing plate.

5. The external drainage device for tunnel arch leakage as described in claim 4, characterized in that, The inner end face of the side sealing plate is provided with a sealing strip, and both sides of the water receiving tank have sealing grooves, with the sealing strip abutting within the sealing grooves.

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