Underground passage anti-seepage structure

Abstract

The underground passage anti-seepage structure comprises an upper concrete layer, lower concrete, a water conveying pipe, a groove, a connecting pipe and a fixing bolt, the upper concrete layer is located at the position, making contact with an upper rock stratum, of an underground passage, and the bottom of the upper concrete layer is coated with an upper waterproof coating; the lower portion of the upper waterproof coating is filled with a lower concrete layer, the bottom of the lower concrete layer is coated with a lower waterproof coating, decorative bricks are fixedly installed at the bottom of the lower concrete layer, a plurality of grooves are formed in the contact face of the lower concrete layer and the upper waterproof coating, and the bottoms of the grooves communicate with water conveying pipes. The water conveying pipe penetrates through the lower concrete layer, the lower waterproof coating and the decorative bricks from the upper portion. According to the device, the double-layer concrete is arranged to prevent leakage, and the grooves are formed to discharge part of permeated water, so that the anti-leakage capability of the underground passage is improved.

Description

Technical Field

[0001] The present application relates to the technical field of underground passage construction, and in particular to an anti-leakage structure for an underground passage. Background Art

[0002] As an important part of urban transportation projects, the safety, stability and durability of underground passages are of great significance to ensuring smooth urban traffic and the safety of people's lives and property. Anti-leakage of underground passages is one of the important measures to ensure their safety and durability. After long-term use of underground passages, leakage may occur.

[0003] Application No. 202320595429.4 discloses an anti-leakage structure for an underground passage in subway construction, including a tunnel vault, an anti-seepage disk, a feed pipe, a hydraulic cylinder, a piston, a connecting pipe, a cavity, an inner pipe, a pressure pipe and a diversion pipe. When pouring concrete into the upper part of the tunnel vault, the piston is located at the lower side of the connecting pipe, and the connecting pipe is connected to a concrete pouring device. The concrete pouring device passes the concrete through the feed pipe, the inner pipe, the pressure pipe and the diversion pipe into the upper part of the tunnel vault. After the gap in the upper part of the tunnel vault is filled, the hydraulic cylinder is connected to an external hydraulic starting device. The output rod of the hydraulic cylinder drives the piston to move along the feed pipe and the inner pipe, squeezing the concrete in the feed pipe to the upper part. The concrete fills the gap between the inner pipe and the tunnel vault and the cavity, thereby playing an anti-leakage role.

[0004] However, in use, there are the following defects:

[0005] Since a lot of moisture accumulates in the soil and rock layers above the underground passage after long-term use, blocking the gaps may cause moisture to seep out from other gaps. It is difficult to prevent leakage by simply filling the gaps, resulting in poor anti-leakage effect. Utility Model Content

[0006] The purpose of the present application is to provide an anti-leakage structure for an underground passage, which solves the problem raised in the background technology that a lot of moisture accumulates in the soil and rock layers above the underground passage after long-term use. Blocking the gaps may cause moisture to seep out from other gaps, and it is difficult to prevent leakage by simply filling the gaps, thus resulting in poor anti-leakage effect.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solutions: an anti-leakage structure for an underground passage, comprising an upper concrete layer, a lower concrete, a water pipe, grooves, a connecting pipe and fixing bolts, wherein the upper concrete layer is located at a position where the underground passage contacts the upper rock layer, the bottom of the upper concrete layer is coated with an upper waterproof coating, the lower part of the upper waterproof coating is filled with a lower concrete layer, the bottom of the lower concrete layer is coated with a lower waterproof coating, decorative bricks are fixedly installed on the bottom of the lower concrete layer, a plurality of grooves are provided on the contact surface between the lower concrete layer and the upper waterproof coating, the bottom of the grooves are connected with a water pipe, and the water pipe passes through the lower concrete layer, the lower waterproof coating and the decorative bricks from above.

[0008] In this technical solution, the upper concrete layer, the lower concrete layer, the upper waterproof coating and the lower waterproof coating can block the moisture in the rock layer. The upper concrete layer blocks the moisture from entering the first layer. If the moisture passes through the upper concrete layer to the lower concrete layer, the upper waterproof coating and the lower waterproof coating below can intercept the moisture, thereby improving the moisture blocking effect and the anti-leakage ability. The moisture accumulated between the upper concrete layer and the lower concrete layer can be discharged through the groove and the water pipe. After the moisture passes through the upper concrete layer and the upper waterproof coating and contacts the lower concrete layer, the moisture will move into the groove and then be discharged downward along the water pipe through the groove, thereby avoiding the accumulation of moisture and increasing the risk of leakage, and improving the anti-leakage effect of the device. At the same time, the discharged water can be collected through the water receiving trough, connecting pipe, three-way joint and drain pipe, and discharged to the sewer system through the drain pipe, thereby avoiding moisture caused by moisture accumulation in the underground passage and keeping it dry.

[0009] As an optional solution of the technical solution of the present application, a water receiving trough is opened below the bottom of the water pipe, and the bottom of the water pipe is located on the inner side of the water receiving trough.

[0010] As an optional solution of the technical solution of the present application, a fixing plate is fixedly connected to the upper left and right side walls of the water receiving trough, a bolt groove is opened on the top of the fixing plate, and the fixing bolt passes through the bolt groove from below and is detachably connected to the decorative brick above.

[0011] As an optional solution of the technical solution of the present application, connecting pipes are connected below the left and right side walls of the water receiving trough.

[0012] As an optional solution of the technical solution of the present application, the other end of the connecting pipe is connected to a three-way joint, and the bottom of the three-way joint is connected to a drain pipe.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The present application can block the moisture in the rock layer through the upper concrete layer, the lower concrete layer, the upper waterproof coating and the lower waterproof coating. The upper concrete layer blocks the moisture from entering the first layer, and the upper waterproof coating and the lower waterproof coating on the surface of the lower concrete layer can intercept the moisture, thereby improving the moisture blocking effect and the anti-leakage ability.

[0015] 2. The present application can drain the moisture accumulated between the upper concrete layer and the lower concrete layer through the grooves and the water pipes. The moisture will move into the grooves and then be drained downward along the water pipes through the grooves, thereby avoiding the accumulation of moisture and increasing the risk of leakage, and improving the anti-leakage effect of the device.

[0016] 3. The present application can collect the discharged water through the water tank, connecting pipe, three-way joint and drain pipe, and discharge it to the sewer system through the drain pipe, thereby avoiding moisture caused by water accumulation in the underground passage and keeping it dry. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the overall structural diagram of the local underground channel anti-leakage structure;

[0018] Figure 2 This is a partial enlarged view of point A of the local underground channel anti-leakage structure.

[0019] Among them, 1. upper concrete layer; 2. groove; 3. water pipe; 4. lower concrete layer; 5. lower waterproof coating; 501, upper waterproof coating; 6. decorative bricks; 7. water receiving trough; 8. connecting pipe; 9. three-way joint; 10. drainage pipe; 11. fixing plate; 12. bolt groove; 13. fixing bolt. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects of the utility model easier to understand, they are further explained below in conjunction with specific implementation methods.

[0021] like Figure 1 As shown, an underground passage anti-seepage structure includes an upper concrete layer 1, a lower concrete layer 4, a water pipe 3, a groove 2, a connecting pipe 8 and a fixing bolt 13. The upper concrete layer 1 is located at a position where the underground passage contacts the upper rock layer. The bottom of the upper concrete layer 1 is coated with an upper waterproof coating 501, and the lower part of the upper waterproof coating 501 is filled with a lower concrete layer 4. The bottom of the lower concrete layer 4 is coated with a lower waterproof coating 5, and a decorative brick 6 is fixedly installed on the bottom of the lower concrete layer 4. The sand and gravel density of the upper concrete layer 1 and the lower concrete layer 4 is the same.

[0022] like Figure 1As shown, the contact surface between the lower concrete layer 4 and the upper waterproof coating 501 is provided with a plurality of grooves 2, the bottom of the grooves 2 is connected with a water pipe 3, the water pipe 3 penetrates the lower concrete layer 4, the lower waterproof coating 5 and the decorative brick 6 from above, and the water pipe 3 can be made of plastic.

[0023] like Figure 1 As shown, a water receiving trough 7 is provided below the bottom of the water delivery pipe 3, and the bottom of the water delivery pipe 3 is located on the inner side of the water receiving trough 7, and a connecting pipe 8 is connected below the left and right side walls of the water receiving trough 7, and the other end of the connecting pipe 8 is connected to a three-way joint 9, and the bottom of the three-way joint 9 is connected to a drainage pipe 10, and the side wall of the water receiving trough 7 is higher than the bottom of the water delivery pipe 3, so as to ensure that water will not splash out during the discharge process.

[0024] like Figure 2 As shown, a fixing plate 11 is fixedly connected to the upper left and right side walls of the water receiving trough 7, a bolt groove 12 is opened on the top of the fixing plate 11, and a fixing bolt 13 passes through the bolt groove 12 from below and is detachably connected to the decorative brick 6 above. The water receiving trough 7 can be removed for replacement and cleaning by loosening the fixing bolt 13.

[0025] In actual use, the upper concrete layer 1, the lower concrete layer 4, the upper waterproof coating 501 and the lower waterproof coating 5 can block the moisture in the rock layer. The upper concrete layer 1 blocks the moisture from entering the first layer. If the moisture passes through the upper concrete layer 1 to the lower concrete layer 4, the upper waterproof coating 501 and the lower waterproof coating 5 below can intercept the moisture, thereby improving the moisture blocking effect and the anti-leakage ability. In addition, the groove 2 and the water pipe 3 can be used to collect the accumulated moisture in the upper concrete layer 1 and the lower concrete layer. 4 is drained away. After the moisture passes through the upper concrete layer 1 and the upper waterproof coating 501 and contacts the lower concrete layer 4, the moisture will move to the groove 2, and then be drained downward along the water pipe 3 through the groove 2, thereby avoiding the accumulation of moisture and increasing the risk of leakage, and improving the anti-leakage effect of the device. At the same time, the discharged moisture can be collected through the water receiving trough 7, the connecting pipe 8, the three-way joint 9 and the drain pipe 10, and uniformly discharged to the sewer system through the drain pipe 10, thereby avoiding the moisture caused by the accumulation of moisture in the underground passage and keeping it dry.

Claims

1. An anti-leakage structure for an underground passage, comprising an upper concrete layer (1), a lower concrete layer (4), a water pipe (3), a groove (2), a connecting pipe (8) and fixing bolts (13), characterized in that: The upper concrete layer (1) is located at a position where the underground passage contacts the upper rock layer; the bottom of the upper concrete layer (1) is coated with an upper waterproof coating (501); the lower concrete layer (4) is filled below the upper waterproof coating (501); the bottom of the lower concrete layer (4) is coated with a lower waterproof coating (5); the bottom of the lower concrete layer (4) is fixedly installed with decorative bricks (6); the contact surface between the lower concrete layer (4) and the upper waterproof coating (501) is provided with a plurality of grooves (2); the bottom of the grooves (2) is connected with a water pipe (3); the water pipe (3) passes through the lower concrete layer (4), the lower waterproof coating (5) and the decorative bricks (6) from above.

2. The underground passage anti-leakage structure according to claim 1, characterized in that: A water receiving groove (7) is provided below the bottom of the water delivery pipe (3), and the bottom of the water delivery pipe (3) is located inside the water receiving groove (7).

3. The underground passage anti-leakage structure according to claim 2, characterized in that: A fixing plate (11) is fixedly connected to the upper left and right side walls of the water receiving trough (7), a bolt groove (12) is provided at the top of the fixing plate (11), and the fixing bolt (13) passes through the bolt groove (12) from below and is detachably connected to the decorative brick (6) above.

4. The underground passage anti-leakage structure according to claim 2, characterized in that: A connecting pipe (8) is connected below the left and right side walls of the water receiving trough (7).

5. The underground passage anti-leakage structure according to claim 4, characterized in that: The other end of the connecting pipe (8) is in communication with a three-way joint (9), and the bottom of the three-way joint (9) is in communication with a drainage pipe (10).

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