Tunnel accumulated water containing structure

Abstract

The utility model discloses a tunnel accumulated water containing structure which comprises a tunnel and drainage ditches arranged on the two sides of the tunnel, a flood discharge ditch and a plurality of reservoirs are further arranged at the bottom of the tunnel, the flood discharge ditch is arranged in the axial direction of the tunnel and located in the middle of the tunnel, and the reservoirs are arranged along the tunnel at intervals. The water storage tanks are located on the two sides of the tunnel respectively, drainage pipes which are communicated with one another and obliquely arranged are arranged between the flood discharge ditches and the water storage tanks, the water storage tanks are communicated with the drainage ditches, movable well lids are arranged on the water storage tanks, and a plurality of drainage through holes are formed in the well lids. The water supply device is simple in structure and can cope with water drainage in flood disasters and water supply in fire disasters at the same time.

Description

Technical Field

[0001] The utility model relates to the field of tunnel engineering, in particular to a tunnel water accumulation retaining structure. Background Art

[0002] With the continuous development of the transportation network, there are more and more vehicles, which makes the roads more crowded. Therefore, many roads have been expanded. When encountering mountains, people use tunnels to build roads. In extra-long tunnels, drainage during the flood season and disaster relief are difficult. The existing tunnel drainage adopts a water storage cavity under the entire roadbed surface to store the infiltration water of the tunnel. However, when a major flood occurs, it is difficult for vehicles and personnel in the middle of the tunnel to escape. If rainwater floods in, casualties are likely to occur. Therefore, it is impossible to solve the drainage of the tunnel during the flood season and the self-rescue problem of the first time when a fire occurs in the tunnel at the same time. Summary of the invention

[0003] The utility model aims to provide a tunnel water accumulation retention structure in view of the deficiencies of the prior art. The structure is simple and can cope with floods and fires at the same time.

[0004] The technical solution adopted by the purpose of the utility model is:

[0005] A tunnel water retention structure comprises a tunnel and drainage ditches arranged on both sides of the tunnel, a flood discharge ditch and a plurality of water reservoirs are also arranged at the bottom of the tunnel, the flood discharge ditch is arranged along the axial direction of the tunnel, the flood discharge ditch is located in the middle of the tunnel, the plurality of water reservoirs are arranged at a distance along the tunnel, the plurality of water reservoirs are respectively located on both sides of the tunnel, a drainage pipe which is interconnected and inclined is arranged between the flood discharge ditch and the water reservoir, the water reservoir is connected to the drainage ditch, a movable manhole cover is arranged on the water reservoir, and a plurality of drainage through holes are opened on the manhole cover.

[0006] Furthermore, at least two drainage pipes are provided between the flood discharge ditch and the water reservoir.

[0007] Furthermore, the inclination gradients of the drain pipes are different.

[0008] Furthermore, the flood discharge ditch end of the drain pipe is lower than the water reservoir end.

[0009] Furthermore, a handle is provided on the manhole cover.

[0010] Furthermore, the side wall of the tunnel is provided with a partition for placing a bucket, and a bucket for drawing water is arranged on the partition.

[0011] Furthermore, the plurality of water storage ditches are arranged along the tunnel at intervals of 70 to 100 m.

[0012] Furthermore, plain concrete is filled between the flood discharge ditch and the roadbed of the tunnel.

[0013] Furthermore, the width of the flood discharge ditch is smaller than the width of the tunnel roadbed surface.

[0014] The above technical solution has the following beneficial effects:

[0015] The utility model has a simple structure. It utilizes the space at the lower end of the tunnel roadbed surface, adds a flood discharge ditch and several water storage tanks, and one end of the water storage tank is connected to the flood discharge ditch through a drain pipe, and the other end is connected to the drainage ditch of the tunnel, so that the water in the daily drainage ditch is discharged into the water storage tank, so that the water in the water storage tank can store water. When a fire occurs, the water in the water storage tank can be used to extinguish the fire and save oneself in the first time. When encountering a flood, the water in each water storage tank is introduced into the flood discharge ditch through the drain pipe, and each water storage tank is drained to the flood discharge ditch in sections and discharged through the flood discharge ditch, thereby effectively avoiding a large amount of water accumulation at the lower end of the tunnel.

[0016] The width of the flood discharge ditch is smaller than the width of the tunnel roadbed surface, ensuring the strength of the tunnel roadbed surface.

[0017] At least two drainage pipes are arranged between the flood discharge ditch and the water storage tank to avoid blockage of one of the drainage pipes and accelerate the discharge to the flood discharge ditch.

[0018] The inclination gradients of the drain pipes are different, with a low gradient causing slow water flow and a high gradient causing emergency water flow.

[0019] Further description is given below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a plan view of specific embodiment 1;

[0021] Figure 2 for Figure 1 Middle AA section view;

[0022] Figure 3 for Figure 1 Middle BB section view;

[0023] Figure 4 for Figure 1 BB cross-section with two drain pipes

[0024] Figure 5 for Figure 4 Schematic diagram of the two drain pipes.

[0025] In the attached drawings, 1 is a tunnel, 2 is a drainage ditch, 3 is a flood discharge ditch, 4 is a reservoir, 5 is plain concrete, 6 is a drain pipe, and 7 is a manhole cover. DETAILED DESCRIPTION Specific embodiment 1:

[0027] See also Figures 1 to 5 As shown, a tunnel water retention structure includes a tunnel 1 and drainage ditches 2 arranged on both sides of the tunnel. The bottom of the tunnel 1 is also provided with a flood discharge ditch 3 and a plurality of water storage tanks 4. The flood discharge ditch 3 is arranged along the axial direction of the tunnel 1. The flood discharge ditch 3 is located in the middle of the tunnel 1. The flood discharge ditch 3 is a rectangular ditch. The width of the flood discharge ditch 3 is smaller than the width of the roadbed surface of the tunnel 1. If the span of the flood discharge ditch is too large, the compressive strength of the tunnel roadbed surface is seriously affected. This structure ensures the strength of the roadbed surface. Plain concrete 5 is filled between the flood discharge ditch 3 and the roadbed of the tunnel 1 to further enhance the strength of the roadbed.

[0028] The plurality of water reservoirs 4 are arranged at a certain distance along the tunnel. In the specific embodiment, the plurality of water reservoirs 4 are arranged at a distance of 70 to 100 m along the tunnel. This spacing avoids the inconvenience of water collection due to the long distance.

[0029] The several water reservoirs 4 are respectively located on both sides of the tunnel, and a mutually connected and inclined drain pipe 6 is provided between the flood discharge ditch 3 and the water reservoir 4, and the flood discharge ditch end of the drain pipe 6 is lower than the water reservoir end. In this specific embodiment, a mutually connected and inclined drain pipe 6 is provided between the flood discharge ditch 3 and the water reservoir 4, and the water inlet end of the drain pipe 6 is located at the upper end of the water reservoir, and the water outlet end of the drain pipe 6 is located at the upper end of the flood discharge ditch, and the water inlet end of the drain pipe 6 is higher than the water outlet end, so that it is convenient for the water in the water reservoir to automatically flow into the flood discharge ditch when there is more water. The water reservoir 4 is connected to the drainage ditch 2, and the side wall and bottom of the drainage ditch 2 are provided with a plurality of through holes connected to the water reservoir 4, so that the accumulated water in the drainage ditch can flow into the water reservoir 4. A movable manhole cover 7 is provided on the water reservoir 4, and a plurality of drainage through holes are opened on the manhole cover 7, and a handle is provided on the manhole cover 7, so that the manhole cover can be taken out by the handle, so as to facilitate water collection. The side wall of the tunnel 1 is provided with a partition for placing a bucket, and a bucket for drawing water is provided on the partition. A bucket is provided for each water reservoir, and the bucket is located on the side wall of the tunnel corresponding to the water reservoir. The rainwater stored in the tunnel is used to extinguish the fire, and it is convenient to extinguish or reduce the fire in time after the fire accident occurs, which prolongs the rescue time. In order to facilitate the management of the bucket, an emergency box is set on the partition, and the bucket is placed in the emergency box. An emergency hammer is set next to the emergency box for opening the emergency box. A prompt bar is also provided in the tunnel to facilitate guidance to quickly find the water reservoir.

[0030] Possibly, two drainage pipes 6 are provided between the flood discharge ditch and the water storage tank, and the two drainage pipes 6 have different inclination slopes, and the greater the slope, the faster the drainage. In this specific embodiment: two drainage pipes are arranged side by side, one high and one low, and the drainage pipes are located at the upper end of the water storage tank. When there is less water in the water storage tank in the dry season, the water in the water storage tank does not flow to the flood discharge ditch. When there is a flood in the rainy season, a large amount of flood water gathers in the water storage tank and is quickly discharged into the flood discharge ditch through the two drainage pipes, thereby preventing the flood water from gathering on the lower side of the tunnel, thereby preventing large-scale water collection on the road surface in the tunnel. At the same time, it can also ensure that after one drainage pipe is blocked, the other drainage pipe can drain water normally.

Claims

1. A tunnel water retention structure, comprising a tunnel and drainage ditches arranged on both sides of the tunnel, characterized in that: A flood discharge ditch and a plurality of water reservoirs are also provided at the bottom of the tunnel. The flood discharge ditch is arranged along the axial direction of the tunnel, the flood discharge ditch is located in the middle of the tunnel, the plurality of water reservoirs are arranged at a certain distance along the tunnel, and the plurality of water reservoirs are respectively located on both sides of the tunnel. A mutually connected and inclined drainage pipe is provided between the flood discharge ditch and the water reservoir, the water reservoir is connected with the drainage ditch, a movable manhole cover is provided on the water reservoir, and a plurality of drainage holes are opened on the manhole cover.

2. A tunnel water retention structure according to claim 1, characterized in that: At least two drainage pipes are arranged between the flood discharge ditch and the water reservoir.

3. A tunnel water retention structure according to claim 1 or 2, characterized in that: The inclination gradients of the drain pipes are different.

4. A tunnel water retention structure according to claim 1 or 2, characterized in that: The flood discharge ditch end of the drain pipe is lower than the water storage tank end.

5. The tunnel water retention structure according to claim 1, characterized in that: A handle is provided on the manhole cover.

6. The tunnel water retention structure according to claim 1, characterized in that: The side wall of the tunnel is provided with a partition for placing a bucket, and the partition is provided with a bucket for drawing water.

7. The tunnel water retention structure according to claim 1, characterized in that: The plurality of water reservoirs are arranged along the tunnel at intervals of 70 to 100 meters.

8. The tunnel water retention structure according to claim 1, characterized in that: Plain concrete is filled between the flood discharge ditch and the roadbed of the tunnel.

9. The tunnel water retention structure according to claim 1, characterized in that: The width of the flood discharge ditch is smaller than the width of the tunnel roadbed surface.

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