Tunnel crystallization flush water storage device and tunnel drainage system

Abstract

This invention belongs to the field of tunnel drainage engineering technology, specifically relating to a tunnel crystallization flushing water storage device and a tunnel drainage system, including a water storage tank, a regulating tank, a track-walking mechanism, and a water quality regulating device. Multiple regulating tanks are arranged in a straight line on the right side of the water storage tank. A first partition is provided between the regulating tanks and the water storage tank, and a water passage hole is provided on the first partition. A buoyancy valve mechanism for controlling the opening and closing of the water passage hole is provided at the water passage hole. The track-walking mechanism includes a track and a vehicle body. The track is laid on the right bank of the regulating tank. When the vehicle body passes through each regulating tank along the track, the free ends of the suction pipe and return pipe are dragged into the corresponding regulating tank. In this solution, the stored water is used to flush the tunnel drainage system during the dry season, reducing the probability of crystallization. Simultaneously, the water undergoes pH adjustment, sterilization, and chemical addition to make the water quality more suitable for flushing the tunnel drainage system.

Description

Technical Field

[0001] This invention belongs to the field of tunnel drainage engineering technology, specifically relating to a tunnel crystallization flushing water storage device and a tunnel drainage system. Background Technology

[0002] The tunnel drainage system is a crucial part of the safe operation of a tunnel. Normally, the water discharged from the tunnel drainage system is directly discharged into the river. However, in some tunnels, due to the high calcium content in the soil, crystals can easily form in hidden channels such as the tunnel's annular blind pipes. Therefore, it is often necessary to flush the annular blind pipes regularly.

[0003] Therefore, it is necessary to design a corresponding tunnel crystallization flushing water storage device to store water during the high water season, so as to facilitate flushing of the hidden water flow channels in the tunnel during the dry season. Summary of the Invention

[0004] To address the aforementioned problems in the existing technology, this solution provides a tunnel crystallization flushing water storage device and a tunnel drainage system.

[0005] The technical solution adopted in this invention is as follows:

[0006] A tunnel crystallization flushing water storage device includes a water storage tank, a regulating tank, a track-walking mechanism, and a water quality regulating device. A drainage channel is provided on the left side of the water storage tank, and a second baffle is provided between the water storage tank and the drainage channel, allowing water in the water storage tank to overflow into the drainage channel through the second baffle. Multiple regulating tanks are arranged in a straight line on the right side of the water storage tank. A first baffle is provided between the regulating tank and the water storage tank, and a water passage hole is provided on the first baffle. A buoyancy valve mechanism for controlling the opening and closing of the water passage hole is provided at the water passage hole. An overflow trough is provided on the right side of the first baffle, and adjacent overflow troughs... The pools are separated by a third partition, allowing the overflow from the overflow trough to flow evenly into each regulating pool. The track-walking mechanism includes a track and a vehicle body. The track is laid on the right bank of the regulating pool, and the vehicle body is mounted on the track. The water quality regulating device is mounted on the vehicle body, and its suction pipe and return pipe are both flexible hoses. The free ends of the suction pipe and return pipe extend into the regulating pool and can be dragged by the vehicle body. When the vehicle body passes through each regulating pool along the track, it drags the free ends of the suction pipe and return pipe into the corresponding regulating pool.

[0007] As an alternative structure or supplementary design for the aforementioned tunnel crystallization flushing water storage device: a pH value detector is installed on the wall of the regulating tank, the pH value detector is electrically connected to an industrial control computer, and the industrial control computer is electrically connected to the traveling vehicle body and the water quality regulating device; the water quality regulating device can add acid to the regulating tank through the return water pipe to adjust the pH value in the regulating tank.

[0008] As an alternative structure or supplementary design for the aforementioned tunnel crystallization flushing water storage device: the buoyancy valve mechanism includes a moving valve plate and a fixed valve plate; the fixed valve plate is fixed at the edge of the water passage hole, and the fixed valve plate is provided with a plurality of strip-shaped first water passage holes; the edge of the moving valve plate is slidably connected to the fixed valve plate; a plurality of strip-shaped second water passage holes are provided on the moving valve plate; the ridge between adjacent second water passage holes can cover the first water passage holes and block the water flow.

[0009] As an alternative structure or supplementary design for the aforementioned tunnel crystallization flushing water storage device: the buoyancy valve mechanism further includes a cross arm, a tie rod, and a float; the right end of the cross arm is rotatably connected to the upper edge of the fixed valve plate, and the left end of the cross arm extends to the center of the water storage tank and is connected to the float; multiple connection holes are provided at the right end of the cross arm, the lower end of the tie rod is rotatably connected to the upper edge of the movable valve plate, and the upper end of the tie rod is rotatably connected to the corresponding connection hole.

[0010] As an alternative structure or supplementary design for the above-mentioned tunnel crystallization flushing water storage device: a conical ridge is provided on the side of the ridge facing the first water permeable hole, and the ridge engages with the edge of the second water permeable hole.

[0011] A tunnel drainage system includes a circumferential blind pipe, a drainage ditch, and a tunnel crystallization flushing water storage device; the circumferential blind pipe is installed inside the tunnel wall, and several circumferential blind pipes are arranged along the depth direction of the tunnel; drainage ditches are provided on both the left and right sides of the tunnel; the two ends of the circumferential blind pipe are respectively connected to two drainage ditches; the outlet end of the drainage ditch is connected to the water storage tank of the tunnel crystallization flushing water storage device.

[0012] As an alternative structure or supplementary design for the aforementioned tunnel drainage system: the outlet end of the drainage ditch is connected to the inlet ditch, and a diversion mechanism is provided at the outlet of the inlet ditch; the diversion mechanism includes a diversion cavity, a guide channel, a force transmission rod, and a diversion expansion joint; the left side of the diversion cavity is connected to the inlet ditch, and a first diversion ditch and a second diversion ditch are provided on the right side of the diversion cavity, the outlet end of the second diversion ditch extends to the regulating pool, and the outlet end of the first diversion ditch extends to the storage pool; the guide channel is provided in the diversion cavity, and the left end of the guide channel is rotatably connected to the left side of the diversion cavity and connected to the inlet ditch; the two ends of the force transmission rod are rotatably connected to the extension end of the diversion expansion joint and the middle outer wall of the guide channel, respectively, and the guide channel can swing horizontally so that its right end can point to the first diversion ditch and the second diversion ditch.

[0013] As an alternative structure or supplementary design for the aforementioned tunnel drainage system: a reverse-feed pipe is installed on the lower side of the tunnel top, and an injection pipe is connected to the outer wall of the reverse-feed pipe. The upper end of the injection pipe is inserted into the tunnel wall and connected to the circumferential blind pipe. A reverse-feed water pump is installed on the traveling probe, and the inlet end of the reverse-feed water pump is connected to the regulating pool, and the outlet end is connected to the reverse-feed pipe. The injection pipe corresponds one-to-one with the circumferential blind pipe, and a solenoid valve is installed on the injection pipe.

[0014] As an alternative structure or supplementary design for the aforementioned tunnel drainage system: the injection pipe includes a left injection pipe and a right injection pipe; the upper ends of both the left and right injection pipes are inserted into the annular channel, and the left and right injection pipes spray water in opposite directions; a solenoid valve is installed on the left and right injection pipes respectively.

[0015] As an alternative structure or supplementary design for the aforementioned tunnel drainage system: flow meters are installed at the outlet ends of the drainage ditches on the left and right sides of the tunnel; the flow meters are linked with solenoid valves, and the industrial control computer controls the opening degree of the solenoid valves based on the difference between the two flow meters.

[0016] The beneficial effects of this invention are as follows:

[0017] 1. In this solution, the tunnel crystallization flushing water storage device can store the water discharged from the tunnel drainage system, which facilitates the use of stored water to flush the drainage system in the tunnel during the dry season, reducing the probability of crystallization in the drainage system; at the same time, since multiple parallel regulating tanks are set up, each regulating tank can store water separately, and the water quality regulating device can be used to adjust the pH value, sterilize, and add chemicals to the water, so that the water quality is more in line with the flushing requirements of the tunnel drainage system.

[0018] 2. In this scheme, the buoyancy valve mechanism can be used to easily control the flow of water between the storage tank and the regulating tank. The float of the buoyancy valve mechanism is set directly below the outlet of the first diversion channel, so that during the high water season, the water flow can be used to prevent the buoyancy valve mechanism from opening, thus preventing water in the storage tank from entering the regulating tank without settling and causing pollution.

[0019] 3. The tunnel drainage system in this scheme can use a water pump to extract water from the regulating pool and inject it into the corresponding annular channel through the back-feeding pipe and the water injection pipe, thereby achieving corresponding flushing of the annular channel. At the same time, due to the use of two water injection pipes spraying water in opposite directions, the speed of water injection can be reduced, while the width of the water flow can be increased, thus improving the flushing effect. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this scheme or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0021] Figure 1 This is a cross-sectional structural diagram of the tunnel crystallization flushing water storage device in this scheme;

[0022] Figure 2 This is a top view of the tunnel crystallization flushing water storage device in this scheme;

[0023] Figure 3 This is a structural diagram showing the fit between the moving valve plate and the stationary valve plate in this design.

[0024] Figure 4 This is a diagram of the tunnel drainage system in this plan;

[0025] Figure 5 This is a structural diagram of the diversion mechanism in this scheme;

[0026] Figure 6 It is a combination structure of a circumferential blind pipe and a water injection pipe.

[0027] In the diagram: 1-Circular blind pipe; 2-Drainage ditch; 3-Flow meter; 4-Diversion mechanism; 401-Guide channel; 402-Connecting rod; 403-Force transmission rod; 404-Diversion expansion joint; 405-Inlet ditch; 406-First diversion ditch; 407-Second diversion ditch; 5-Reverse feed pipe; 501-Left water injection pipe; 502-Right water injection pipe; 6-Drainage channel; 7-Buoyancy valve mechanism; 701-Moving valve plate; 702-Fixed valve plate; 704-Horizontal arm; 705-Pull rod; 706-Float body; 8-Regulating tank; 801-Overflow trough; 9-Storage tank; 10-pH detector; 11-Railway walking mechanism; 1101-Traveling track; 1102-Traveling vehicle body; 12-Reverse feed pump; 13-Water quality regulating device; 14-First partition; 1401-Water passage hole. Detailed Implementation

[0028] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are only a part of the embodiments, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments in this solution without creative effort are within the protection scope of this solution.

[0029] Example 1

[0030] like Figures 1 to 3 As shown, this embodiment designs a tunnel crystallization flushing water storage device, including a water storage tank 9, an adjustment tank 8, a track walking mechanism 11, and a water quality adjustment device 13.

[0031] A drainage channel 6, which can be a river, is provided on the left side of the water storage tank 9. A second baffle is installed between the water storage tank 9 and the drainage channel 6. When the water storage tank 9 is full, the water in the water storage tank 9 can overflow into the drainage channel 6 through the second baffle. Multiple regulating tanks 8 are arranged in a straight line on the right side of the water storage tank 9. Adjacent regulating tanks 8 are separated by a third baffle. When one regulating tank 8 is full, it can overflow into the adjacent regulating tank 8 to replenish the water. A first baffle 14 is provided between the regulating tank 8 and the water storage tank 9. The height of the upper edge of the first baffle 14 should be higher than the second and third baffles to separate the water between the regulating tank 8 and the water storage tank 9. A water passage hole 1401 is provided on the first baffle 14. A buoyancy valve mechanism 7 is provided at the water passage hole 1401 to control its opening and closing. When the buoyancy valve mechanism 7 opens under the control of the buoyancy of the water in the water storage tank 9, water can flow into the regulating tank 8. An overflow trough 801 is provided on the right side of the first partition 14. The water overflowing from the overflow trough 801 can flow evenly into each regulating tank 8, thereby ensuring uniform water intake in each regulating tank 8.

[0032] The track-walking mechanism 11 includes a track 1101 and a vehicle body 1102. The track 1101 is laid on the right bank of the regulating pool 8, and the vehicle body 1102 is mounted on the track 1101. The water quality regulating device 13 is mounted on the vehicle body 1102, and both its suction pipe and return pipe are flexible hoses. The water quality regulating device 13 can use existing dosing devices. The water quality regulating device 13 draws water from the regulating pool 8 through the suction pipe, and after adding acidic agents, flocculants, bactericides, and other agents to the water quality regulating device 13, it is returned to the corresponding regulating pool 8 through the return pipe. The free ends of the suction pipe and the return pipe extend into the regulating pool 8 and can be towed by the traveling vehicle 1102. When the traveling vehicle 1102 passes through each regulating pool 8 along the traveling track 1101, the free ends of the suction pipe and the return pipe are towed into the corresponding regulating pool 8. Through the towing of the traveling vehicle 1102, the water quality state in each regulating pool 8 can be different, thereby meeting the water quality requirements of different flushing stages in the tunnel drainage system. Acidic water can be used for the initial flushing, followed by neutral water, which can improve the crystal removal rate and reduce the corrosion of the tunnel drainage system by acidic water.

[0033] A pH detector 10 is installed on the wall of the equalization tank 8. The pH detector 10 is electrically connected to an industrial control computer, which is electrically connected to the vehicle body 1102 and the water quality adjustment device 13. The water quality adjustment device 13 can add acid to the equalization tank 8 through a return water pipe to adjust the pH level. Based on the detection value of the pH detector 10, the system can provide feedback control over the dosage and rate of the water quality adjustment device 13, thereby ensuring that the water quality in the equalization tank 8 meets the requirements.

[0034] The buoyancy valve mechanism 7 includes a movable valve plate 701 and a fixed valve plate 702. The fixed valve plate 702 is fixed at the edge of the water passage hole 1401, and a plurality of strip-shaped first water passage holes are provided on the fixed valve plate 702. The edge of the movable valve plate 701 is slidably connected to the fixed valve plate 702. A plurality of strip-shaped second water passage holes are provided on the movable valve plate 701. The ridge between adjacent second water passage holes can cover the first water passage holes and block the water flow. By moving the relative positions of the movable valve plate 701 and the fixed valve plate 702, the second water passage holes can be misaligned, intersected, or directly opposite the first water passage holes, thereby realizing the opening degree control of the buoyancy valve mechanism 7. When the second water passage hole is misaligned with the first water passage hole, the buoyancy valve mechanism 7 is in the closed state. When the second water passage hole is directly opposite the first water passage hole, the buoyancy valve mechanism 7 is in the maximum opening state.

[0035] The buoyancy valve mechanism 7 further includes a horizontal arm 704, a pull rod 705, and a float 706. The right end of the horizontal arm 704 is rotatably connected to the upper edge of the fixed valve plate 702, and the left end of the horizontal arm 704 extends to the center of the water storage tank 9 and is connected to the float. Multiple connection holes are provided at the right end of the horizontal arm 704. The lower end of the pull rod 705 is rotatably connected to the upper edge of the movable valve plate 701, and the upper end of the pull rod 705 is rotatably connected to the corresponding connection hole. When the float 706 controls the position of the movable valve plate 701 under the combined action of the buoyancy of the water in the water storage tank 9 and its own weight, when the float 706 rises, the horizontal arm 704 rotates upward and pulls the movable valve plate 701 upward via the pull rod 705, thereby opening the buoyancy valve mechanism 7. Conversely, when it falls, the movable valve plate 701 moves downward and closes the buoyancy valve mechanism 7.

[0036] Furthermore, the position of the float 706 is set directly below the outlet of the drainage system that delivers water to the storage tank 9. This ensures that during the high-water season when the water volume is large and the water quality is relatively turbid, the impact of the water flow from the drainage system will prevent the buoyancy valve mechanism 7 from opening, thus avoiding excessive water containing large particles from entering the regulating tank 8. After the water flow from the drainage system decreases, the water in the storage tank 9 will settle, allowing the buoyancy valve mechanism 7 to open and allow water with fewer impurities in the middle layer of the storage tank 9 to enter the regulating tank 8.

[0037] The spine has a tapered ridge on the side facing the first water-permeable hole, which engages with the edge of the second water-permeable hole. The ridge allows the moving valve plate 701 to gradually move away from the fixed valve plate 702, thereby reducing the contact area and frictional resistance between them. This also reduces the increase in the opening of the buoyancy valve mechanism 7 when the float 706 moves upwards and the torque decreases.

[0038] Example 2

[0039] like Figures 1 to 6 As shown, this embodiment designs a tunnel drainage system, including a circumferential blind pipe 1, a drainage ditch 2, and a tunnel crystallization flushing water storage device. The tunnel crystallization flushing water storage device can adopt the structure shown in Embodiment 1.

[0040] The circumferential blind pipe 1 is installed inside the tunnel wall, and several circumferential blind pipes 1 are arranged along the depth direction of the tunnel; drainage ditches 2 are provided on both the left and right sides of the tunnel; the two ends of the circumferential blind pipe 1 are respectively connected to two drainage ditches 2; the water outlet of the drainage ditch 2 is connected to the water storage tank 9 of the tunnel crystallization flushing water storage device.

[0041] The outlet of the drainage ditch 2 is connected to the inlet ditch 405, and a diversion mechanism 4 is provided at the outlet of the inlet ditch 405. The diversion mechanism 4 includes a diversion cavity, a guide channel 401, a force transmission rod 403, and a diversion expansion joint 404. The left side of the diversion cavity is connected to the inlet ditch 405, and a first diversion ditch 406 and a second diversion ditch 407 are provided on the right side of the diversion cavity. The outlet of the second diversion ditch 407 extends to the regulating tank 8. The outlet of 06 extends to the water storage tank 9; the guide channel 401 is disposed in the diversion cavity, and the left end of the guide channel 401 is rotatably connected to the left side of the diversion cavity and connected to the inlet ditch 405; the two ends of the force transmission rod 403 are rotatably connected to the telescopic end of the diversion expansion joint 404 and the middle outer wall of the guide channel 401, respectively. The guide channel 401 can swing horizontally so that its right end can point to the first diversion ditch 406 and the second diversion ditch 407. The diversion mechanism 4 can send the normal drainage of the drainage system to the water storage tank 9, while the flushing water in the regulating tank 8 after water quality regulation is directly returned to the regulating tank 8, thereby reducing the waste of the chemicals added by the water quality regulation mechanism.

[0042] A backfeed pipe 5 is installed on the lower side of the tunnel top. An injection pipe is connected to the outer wall of the backfeed pipe 5. The upper end of the injection pipe is inserted into the tunnel wall and connected to the circumferential blind pipe 1. A backfeed water pump 12 is installed on the vehicle body. The inlet of the backfeed water pump 12 is connected to the regulating tank 8, and the outlet is connected to the backfeed pipe 5. The injection pipe corresponds one-to-one with the circumferential blind pipe 1, and a solenoid valve is installed on the injection pipe. The opening and closing of the solenoid valve can control the backfeed pipe 5 to send flushing water into the corresponding circumferential blind pipe 1.

[0043] The injection pipe includes a left water injection pipe 501 and a right water injection pipe 502; the upper ends of both the left and right water injection pipes 501 and 502 are inserted into the annular channel, and the left and right water injection pipes 501 and 502 spray water in opposite directions; a solenoid valve is installed on each of the left and right water injection pipes 501 and 502. The opposing flow of water from the left and right water injection pipes 501 and 502 facilitates the slowing down of the water flow, ensuring the flow rate of flushing water within the annular blind pipe 1, and allowing for more precise control of the flushing water speed, increasing the width of the water flow, improving the flushing effect, and also facilitating the control of the outflow direction after the water flow converges. That is, when the water volume from the left water injection pipe 501 is greater than that from the right water injection pipe 502, the water flows out to the right side of the annular pipe, and vice versa.

[0044] Flow meters 3 are installed at the outlets of drainage ditches 2 on both sides of the tunnel. The flow meters 3 are linked to solenoid valves, and the industrial control computer controls the opening of the solenoid valves based on the difference between the two flow meters 3. The flow meters 3 facilitate the monitoring of the flushing water volume and drainage water volume on both sides of the tunnel, thereby enabling the industrial control computer to perform periodic flushing and other operations of the drainage system according to the set program.

[0045] The above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation; it is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom remain within the scope of this technology.

Claims

1. A tunnel drainage system, characterized in that, Includes a circumferential blind pipe (1), a drainage ditch (2), and a tunnel crystallization flushing water storage device; The tunnel crystallization flushing water storage device includes a water storage tank (9), an regulating tank (8), a track walking mechanism (11), and a water quality regulating device (13); a drain channel (6) is provided on the left side of the water storage tank (9), and a second partition is provided between the water storage tank (9) and the drain channel (6), so that the water in the water storage tank (9) can overflow into the drain channel (6) through the second partition; multiple regulating tanks (8) are arranged in a straight line on the right side of the water storage tank (9), and a first partition (14) is provided between the regulating tank (8) and the water storage tank (9), and a water passage hole (1401) is provided on the first partition (14), and a buoyancy valve mechanism (7) for controlling its opening and closing is provided at the water passage hole (1401); an overflow trough (801) is provided on the right side of the first partition (14), and adjacent overflow troughs (801) are connected. Separated by the third partition, the water overflowing from the overflow trough (801) can flow evenly into each regulating pool (8); the track walking mechanism (11) includes a walking track (1101) and a walking vehicle (1102); the walking track (1101) is laid on the right bank of the regulating pool (8), and the walking vehicle (1102) is set on the walking track (1101); the water quality regulating device (13) is set on the walking vehicle (1102), and its suction pipe and return pipe are both made of flexible hose. The free ends of the suction pipe and return pipe extend into the regulating pool (8) and can be dragged by the walking vehicle (1102); when the walking vehicle (1102) passes through each regulating pool (8) along the walking track (1101), the free ends of the suction pipe and return pipe are dragged into the corresponding regulating pool (8); The buoyancy valve mechanism (7) includes a movable valve plate (701) and a fixed valve plate (702); the fixed valve plate (702) is fixed at the edge of the water passage hole (1401), and the fixed valve plate (702) is provided with a plurality of strip-shaped first water passage holes; the edge of the movable valve plate (701) is slidably connected to the fixed valve plate (702); the movable valve plate (701) is provided with a plurality of strip-shaped second water passage holes; the ridge between adjacent second water passage holes can cover the first water passage holes and block the water flow; The buoyancy valve mechanism (7) also includes a cross arm (704), a pull rod (705), and a float (706); the right end of the cross arm (704) is rotatably connected to the upper edge of the fixed valve plate (702), and the left end of the cross arm (704) extends to the center of the water storage tank (9) and is connected to the float; multiple connection holes are provided at the right end of the cross arm (704), the lower end of the pull rod (705) is rotatably connected to the upper edge of the moving valve plate (701), and the upper end of the pull rod (705) is rotatably connected to the corresponding connection hole; The circumferential blind pipe (1) is installed inside the tunnel wall, and several circumferential blind pipes (1) are arranged along the depth direction of the tunnel; drainage ditches (2) are provided on the left and right sides of the tunnel; the two ends of the circumferential blind pipe (1) are respectively connected to two drainage ditches (2); the water outlet of the drainage ditch (2) is connected to the water storage tank (9) of the tunnel crystallization flushing water storage device. The outlet of the drainage ditch (2) is connected to the inlet ditch (405), and a diversion mechanism (4) is provided at the outlet of the inlet ditch (405). The diversion mechanism (4) includes a diversion cavity, a guide channel (401), a force transmission rod (403), and a diversion expansion joint (404). The left side of the diversion cavity is connected to the inlet ditch (405), and a first diversion ditch (406) and a second diversion ditch (407) are provided on the right side of the diversion cavity. The outlet of the second diversion ditch (407) extends to the regulating tank (8), and the first diversion ditch... The outlet end of the ditch (406) extends to the water storage tank (9); the guide trough (401) is set in the diversion cavity, and the left end of the guide trough (401) is rotatably connected to the left side of the diversion cavity and connected to the inlet ditch (405); the two ends of the force transmission rod (403) are rotatably connected to the telescopic end of the diversion expansion joint (404) and the middle outer wall of the guide trough (401), respectively. The guide trough (401) can swing horizontally so that its right end can point to the first diversion ditch (406) and the second diversion ditch (407).

2. The tunnel drainage system according to claim 1, characterized in that: A pH detector (10) is installed on the wall of the regulating tank (8). The pH detector (10) is electrically connected to an industrial control computer. The industrial control computer is electrically connected to the vehicle body (1102) and the water quality regulating device (13). The water quality regulating device (13) can add acid to the regulating tank (8) through the return water pipe to regulate the pH of the regulating tank (8).

3. The tunnel drainage system according to claim 2, characterized in that: The ridge has a tapered ridge on the side facing the first water-permeable hole, and the ridge engages with the edge of the second water-permeable hole.

4. The tunnel drainage system according to any one of claims 1-3, characterized in that: A reverse feed pipe (5) is provided on the lower side of the top of the tunnel. An injection pipe is connected to the outer wall of the reverse feed pipe (5). The upper end of the injection pipe is inserted into the tunnel wall and connected to the circumferential blind pipe (1). A reverse feed water pump (12) is provided on the traveling probe. The inlet end of the reverse feed water pump (12) is connected to the regulating pool (8), and the outlet end is connected to the reverse feed pipe (5). The injection pipe corresponds one-to-one with the circumferential blind pipe (1), and a solenoid valve is provided on the injection pipe.

5. The tunnel drainage system according to claim 4, characterized in that: The injection pipe includes a left water injection pipe (501) and a right water injection pipe (502); the upper ends of the left water injection pipe (501) and the right water injection pipe (502) are inserted into the annular channel, and the left water injection pipe (501) and the right water injection pipe (502) spray water in opposite directions; a solenoid valve is provided on the left water injection pipe (501) and the right water injection pipe (502) respectively.

6. The tunnel drainage system according to claim 5, characterized in that: Flow meters (3) are installed at the outlet of the drainage ditches (2) on the left and right sides of the tunnel respectively; the flow meters (3) are linked with the solenoid valves, and the industrial control computer controls the opening degree of the solenoid valves according to the difference between the two flow meters (3).

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