Waterproof and drainage device for tunnel leakage

Abstract

The utility model discloses a waterproof and drainage device for tunnel leakage, which comprises a lining layer, a waterproof and drainage mechanism is arranged on the outer side of the lining layer, the waterproof and drainage mechanism is used for drainage, the waterproof and drainage mechanism comprises a waterproof layer arranged on the outer side face of the lining layer, a supporting layer is arranged on the outer side face of the waterproof layer, and an annular longitudinal blind pipe is arranged on the upper end face of the waterproof layer. When water enters the tunnel, water flow can penetrate through the filter screen plate to flow downwards into the drainage outlet to be accumulated, the sealing plate and the pressing plate are pressed to move downwards, the water flow conveniently flows into the drainage ditch to be drained, the spring elastically supports the pressing plate to drive the sealing plate to block the drainage outlet, and peculiar smell in the drainage ditch can be prevented from polluting air in the tunnel; the exhaust pipe is arranged at the upper end of the lining layer, the exhaust fan is started, harmful gas in the tunnel is exhausted upwards, the quality of air in the tunnel can be effectively improved, the upper end of the exhaust pipe can be sheltered from rain through the design of the rain shade, and rainwater is prevented from entering the tunnel along the exhaust pipe to accumulate water.

Description

Technical Field

[0001] This utility model relates to the field of tunnel waterproofing and drainage technology, specifically a waterproofing and drainage device for tunnel leakage. Background Technology

[0002] With the increasing number of highway tunnels in my country, tunnel waterproofing and drainage technology is a crucial factor in ensuring a safe and stable operating environment, directly impacting the tunnel's operational environment and costs. The rationality of tunnel waterproofing and drainage structures is closely related to the engineering geological and hydrogeological conditions of the surrounding strata. Tunnel waterproofing and drainage should adhere to the principle of "combining prevention, drainage, blocking, and interception, adapting to local conditions, and comprehensive management" to ensure the normal use of tunnel structures and operating equipment, as well as traffic safety, achieving reliable waterproofing, smooth drainage, and economic rationality.

[0003] For example, the tunnel waterproofing and drainage structure disclosed in authorization announcement number CN216518060U includes: a waterproofing system and a drainage system. The waterproofing system, from the outer pebble layer inward, includes: an initial support layer, a waterproofing layer, and a secondary lining layer. The drainage system includes a circumferential longitudinal blind pipe and a tunnel bottom drainage structure, with the circumferential longitudinal blind pipe connected to the tunnel bottom drainage structure. The initial support layer includes: a steel mesh layer, a steel frame layer, and a shotcrete layer, arranged from top to bottom. The circumferential longitudinal blind pipe is located between the initial support layer and the waterproofing layer. The initial support layer is perforated with drainage anchors and grouting anchors. The tops of the drainage anchors and grouting anchors are located in the pebble layer, and the bottoms of the drainage anchors and grouting anchors are in contact with the circumferential longitudinal blind pipe.

[0004] The tunnel's drainage and waterproofing structure improves the drainage and waterproofing capacity of the pebble layer tunnel by using drainage anchors and grouting anchors for drainage and reinforcement, as well as a "three-layer combined" waterproofing layer.

[0005] As can be seen from the solutions disclosed in the existing patent documents, an arch foot drainage ditch is set up inside the tunnel, and a first transverse drainage pipe and a second transverse drainage pipe are connected to the two sides of the arch foot drainage ditch respectively for drainage of the initial support layer of the tunnel. However, it is unclear how to discharge the water accumulated inside the tunnel to prevent the water on the road from affecting vehicle driving. Furthermore, when vehicles drive inside the tunnel, the exhaust emissions of vehicles will produce harmful gases, and it is unclear how to discharge the harmful gases inside the tunnel. Therefore, the existing technology needs to be improved. Utility Model Content

[0006] The purpose of this invention is to provide a drainage and anti-seepage device for tunnels to solve the problems existing in the prior art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a drainage and waterproofing device for tunnel leakage, comprising a lining layer, a drainage and waterproofing mechanism provided on the outer side of the lining layer, the drainage and waterproofing mechanism being used for drainage, the drainage and waterproofing mechanism comprising a waterproof layer provided on the outer side of the lining layer, a support layer provided on the outer side of the waterproof layer, a circumferential longitudinal blind pipe provided on the upper end face of the waterproof layer, a drainage pipe connected to the lower end of the circumferential longitudinal blind pipe, and a drainage ditch connected to one end of the drainage pipe;

[0008] The drainage ditch is symmetrically equipped with an odor-proof mechanism to prevent odors from polluting the air inside the tunnel. The odor-proof mechanism includes a guide rod installed inside the drainage ditch, a pressure plate slidably sleeved on the outside of the guide rod, a sealing plate glued to the upper end of the pressure plate, and a spring fixedly connected to the lower end of the pressure plate. The inner side of the lining layer is paved with a road surface, and drainage outlets are provided on both sides of the road surface. A filter screen is installed inside the drainage outlet.

[0009] An exhaust mechanism is provided inside the upper end of the lining layer for discharging air from inside the tunnel. The exhaust mechanism includes an exhaust pipe sleeved inside the upper end of the lining layer, a support rod connected to the inner wall of the exhaust pipe, a support cylinder connected to one end of the support rod, a telescopic rod slidably sleeved inside the support cylinder, a limit block connected to the lower end of the telescopic rod, an installation hole provided inside the telescopic rod, a screw threaded inside the support cylinder, and a rain cover connected to the upper end of the telescopic rod.

[0010] Preferably, drainage ditches are symmetrically arranged on the inner side of the lining layer, the bottom of the drainage ditch is connected to a spring, the upper end of the drainage ditch is connected to a road surface, a drainage pipe is arranged inside the lining layer, and a drainage pipe is arranged inside the waterproof layer.

[0011] Preferably, the lower end face of the drain outlet is tightly abutted with a sealing plate, the top of the drain ditch is pressed with a sealing plate, and the guide rod is slidably connected inside the sealing plate.

[0012] Preferably, a telescopic rod is sleeved inside the exhaust pipe, a limit block is sleeved inside the exhaust pipe, and a screw is threaded inside the mounting hole.

[0013] Preferably, an exhaust pipe is provided inside the upper end of the waterproof layer, an exhaust pipe is provided inside the upper end of the support layer, and an exhaust fan is installed inside the exhaust pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This drainage device for tunnel leakage allows water to flow through the filter screen and down into the drain outlet when water enters the tunnel. The sealing plate and pressure plate are pressed down to facilitate the water flow into the drainage ditch for drainage. The pressure plate is elastically supported by a spring, which drives the sealing plate to block the drain outlet, thus preventing odors from polluting the air inside the tunnel.

[0016] By installing an exhaust pipe at the top of the lining layer and turning on the exhaust fan, harmful gases inside the tunnel can be exhausted upwards, which can effectively improve the air quality inside the tunnel. The design of the rain cover can block rain from the top of the exhaust pipe and prevent rainwater from entering the tunnel and accumulating. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is an enlarged view of the drainage ditch of this utility model;

[0019] Figure 3 This is an enlarged perspective view of the exhaust pipe of this utility model.

[0020] In the diagram: 1 Lining layer, 11 Waterproof layer, 12 Support layer, 13 Circumferential longitudinal blind pipe, 14 Drainage pipe, 15 Drainage ditch, 16 Guide rod, 17 Pressure plate, 18 Sealing plate, 19 Spring, 110 Road surface, 111 Drain outlet, 112 Filter screen, 2 Exhaust pipe, 21 Support rod, 22 Support cylinder, 23 Telescopic rod, 24 Limiting block, 25 Mounting hole, 26 Screw, 27 Rain cover. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-3 The diagram shows a drainage device for tunnel leakage prevention, including a lining layer 1, a drainage mechanism on the outside of the lining layer 1 for drainage, the drainage mechanism including a waterproof layer 11 on the outer side of the lining layer 1, a support layer 12 on the outer side of the waterproof layer 11, a circumferential longitudinal blind pipe 13 on the upper end of the waterproof layer 11, a drainage pipe 14 connected to the lower end of the circumferential longitudinal blind pipe 13, and a drainage ditch 15 connected to one end of the drainage pipe 14.

[0023] Odor-proof mechanisms are symmetrically arranged inside the drainage ditch 15. The odor-proof mechanisms are used to prevent odors inside the drainage ditch 15 from polluting the air inside the tunnel. The odor-proof mechanisms include guide rods 16 arranged inside the drainage ditch 15, pressure plates 17 slidingly sleeved on the outer side of the guide rods 16, sealing plates 18 glued to the upper end face of the pressure plates 17, and springs 19 fixedly connected to the lower end face of the pressure plates 17. Road surface 110 is laid on the inner side of the lining layer 1. Drainage outlets 111 are arranged inside both sides of the road surface 110. Filter screens 112 are installed inside the drainage outlets 111.

[0024] An exhaust mechanism is installed inside the upper end of the lining layer 1. The exhaust mechanism is used to exhaust air inside the tunnel. The exhaust mechanism includes an exhaust pipe 2 sleeved inside the upper end of the lining layer 1. A support rod 21 is connected to the inner wall of the exhaust pipe 2. One end of the support rod 21 is connected to a support cylinder 22. A telescopic rod 23 is slidably sleeved inside the support cylinder 22. A limiting block 24 is connected to the lower end of the telescopic rod 23. An installation hole 25 is provided inside the telescopic rod 23. A screw 26 is threaded inside the support cylinder 22. A rain cover 27 is connected to the upper end of the telescopic rod 23.

[0025] Please see Figure 1-2 Drainage ditches 15 are symmetrically arranged on the inner side of the lining layer 1. The bottom of the drainage ditch 15 is connected to a spring 19, and the upper end of the drainage ditch 15 is connected to the road surface 110. Drainage pipes 14 are arranged inside the lining layer 1 and inside the waterproof layer 11.

[0026] When water enters the tunnel, the water can flow through the filter screen 112 and flow downwards into the drain outlet to accumulate. The sealing plate 18 and the pressure plate 17 are pressed downwards to facilitate the water flow into the drainage ditch 15 for drainage.

[0027] Please see Figure 1-2 The lower end face of the drain outlet 111 is in close contact with the sealing plate 18, the top of the drain ditch 15 presses against the sealing plate 18, and the guide rod 16 is slidably connected inside the sealing plate 18.

[0028] With this setup, the spring 19 provides elastic support to the pressure plate 17, which in turn causes the sealing plate 18 to block the drain outlet 111. This prevents odors inside the drainage ditch 15 from polluting the air inside the tunnel. When the support layer 12 leaks water, the water flows through the drainage pipe 14 into the drainage ditch 15 for drainage. This effectively solves the seepage problem that occurs during the construction and operation of tunnel waterproofing and drainage.

[0029] Please see Figure 1 and Figure 3 The internal sleeve of the exhaust pipe 2 is a telescopic rod 23, the internal sleeve of the exhaust pipe 2 is a limiting block 24, and the internal thread of the mounting hole 25 is a screw 26.

[0030] With this setup, the rain cover 27 is moved longitudinally to drive the telescopic rod 23 longitudinally, and the screw 26 is rotated to connect the threaded support cylinder 22 and the mounting hole 25, making it easy to adjust the distance between the rain cover 27 and the exhaust pipe 2.

[0031] Please see Figure 1 and Figure 3 An exhaust pipe 2 is installed inside the upper end of the waterproof layer 11 and the upper end of the support layer 12. An exhaust fan is installed inside the exhaust pipe 2. The tunnel exhaust fan brings fresh air into the tunnel through the ventilation system and discharges polluted air to ensure the quality of the air inside. When the exhaust fan discharges air outward, it will cause the air pressure inside the tunnel to drop, the air inside the tunnel to become thin, and a negative pressure zone will be formed. Air flows into the tunnel due to the air pressure difference compensation.

[0032] With this setup, by installing an exhaust pipe 2 at the top of the lining layer 1 and starting the exhaust fan, harmful gases inside the tunnel can be exhausted upwards, which can effectively improve the air quality inside the tunnel. The design of the rain cover 27 can block rain from the top of the exhaust pipe 2 and prevent rainwater from entering the tunnel and accumulating water along the exhaust pipe 2.

[0033] The working principle of this embodiment is as follows: When water enters the tunnel, the water flow can pass through the filter screen 112 and flow downward into the drain outlet to accumulate. The sealing plate 18 and the pressure plate 17 are pressed downward to facilitate the water flow into the drainage ditch 15 for drainage. When the support layer 12 seeps water, the water flows through the drainage pipe 14 into the drainage ditch 15 for drainage. This can effectively solve the seepage problem that occurs during the construction and operation of tunnel waterproofing and drainage.

[0034] It is worth noting that: by using the spring 19 to elastically support the pressure plate 17, the sealing plate 18 is driven to block the drain outlet 111, which can prevent the odor inside the drainage ditch 15 from polluting the air inside the tunnel.

[0035] By moving the rain cover 27 longitudinally, the telescopic rod 23 is driven longitudinally. The screw 26 is rotated to connect the support cylinder 22 and the mounting hole 25, which facilitates the adjustment of the distance between the rain cover 27 and the exhaust pipe 2. By setting the exhaust pipe 2 at the upper end of the lining layer 1 and starting the exhaust fan, harmful gases inside the tunnel are exhausted upwards, which can effectively improve the air quality inside the tunnel.

[0036] It is worth noting that the design of the rain cover 27 can block rain from the upper part of the exhaust pipe 2, preventing rainwater from entering the tunnel and accumulating water along the exhaust pipe 2.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drainage and waterproofing device for tunnel seepage, characterized in that: The system includes a lining layer (1), and a drainage mechanism is provided on the outside of the lining layer (1). The drainage mechanism is used for drainage. The drainage mechanism includes a waterproof layer (11) provided on the outer side of the lining layer (1), a support layer (12) provided on the outer side of the waterproof layer (11), a circumferential longitudinal blind pipe (13) provided on the upper end of the waterproof layer (11), a drain pipe (14) connected to the lower end of the circumferential longitudinal blind pipe (13), and a drainage ditch (15) connected to one end of the drain pipe (14). The drainage ditch (15) is symmetrically equipped with an odor-proof mechanism inside. The odor-proof mechanism is used to prevent odors inside the drainage ditch (15) from polluting the air inside the tunnel. The odor-proof mechanism includes a guide rod (16) installed inside the drainage ditch (15). A pressure plate (17) is slidably sleeved on the outside of the guide rod (16). A sealing plate (18) is glued to the upper end face of the pressure plate (17). A spring (19) is fixedly connected to the lower end face of the pressure plate (17). A road surface (110) is laid on the inner side of the lining layer (1). Drainage outlets (111) are provided inside both sides of the road surface (110). A filter screen (112) is installed inside the drainage outlet (111). An exhaust mechanism is provided inside the upper end of the lining layer (1). The exhaust mechanism is used for air discharge inside the tunnel. The exhaust mechanism includes an exhaust pipe (2) sleeved inside the upper end of the lining layer (1). A support rod (21) is connected to the inner wall of the exhaust pipe (2). A support cylinder (22) is connected to one end of the support rod (21). A telescopic rod (23) is slidably sleeved inside the support cylinder (22). A limit block (24) is connected to the lower end of the telescopic rod (23). An installation hole (25) is provided inside the telescopic rod (23). A screw (26) is threaded inside the support cylinder (22). A rain cover (27) is connected to the upper end of the telescopic rod (23).

2. The anti-leakage and drainage device for tunnels according to claim 1, characterized in that: The inner side of the lining layer (1) is symmetrically provided with drainage ditches (15), the bottom of the drainage ditch (15) is connected with a spring (19), the upper end of the drainage ditch (15) is connected with a road surface (110), the interior of the lining layer (1) is provided with a drainage pipe (14), and the interior of the waterproof layer (11) is provided with a drainage pipe (14).

3. A drainage and waterproofing device for tunnel leakage according to claim 1, characterized in that: The lower end face of the drain outlet (111) is tightly attached to the sealing plate (18), the top of the drain ditch (15) is pressed with the sealing plate (18), and the guide rod (16) is slidably connected inside the sealing plate (18).

4. A drainage and waterproofing device for tunnel leakage according to claim 1, characterized in that: The exhaust pipe (2) is fitted with a telescopic rod (23), the exhaust pipe (2) is fitted with a limit block (24), and the mounting hole (25) is threaded with a screw (26).

5. A drainage and waterproofing device for tunnel leakage according to claim 1, characterized in that: An exhaust pipe (2) is provided inside the upper end of the waterproof layer (11), and an exhaust pipe (2) is provided inside the upper end of the support layer (12). An exhaust fan is installed inside the exhaust pipe (2).

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