Tunnel anti-slope drainage system

Abstract

The utility model relates to tunnel drainage technical field, concretely relates to a tunnel reverse slope drainage system, including the water collecting pit, the water collecting pit is used for collecting the water of tunnel inside, mobile water tank, mobile water tank is adjustable along the position of tunnel main hole axis direction, pump station, at least two pump stations interval settings are in tunnel slope well, and the pump station includes water collecting bin and equipment platform, and the equipment platform sets up in water collecting bin top, between water collecting pit and mobile water tank, between mobile water tank and the water collecting bin closest to tunnel main hole and between adjacent two water collecting bins all are communicated through water delivery pipeline, and the water collecting bin closest to tunnel slope well mouth is connected with the drainage pipeline, in water collecting pit, in mobile water tank and on equipment platform all are provided with water pump, the utility model can overcome the technical problem that the existing tunnel reverse slope drainage system can occupy the large amount of space inside tunnel main hole, leads to the space utilization rate reduction of tunnel main hole, and can hinder the tunnel main hole construction.

Description

Technical Field

[0001] This utility model relates to the field of tunnel drainage technology, and in particular to a tunnel reverse slope drainage system. Background Technology

[0002] Water inrush can sometimes occur during the construction of the main tunnel, which can seriously affect the construction safety of the main tunnel. In addition, the main tunnel often has a certain slope, so it is necessary to set up a water collection tank in the main tunnel to collect the scattered water (sewage and clean water generated at various points along the length of the main tunnel) in the main tunnel. Then, the water collected in the water collection tank is pumped out in a centralized manner. Otherwise, the well flooding accident is very likely to occur.

[0003] However, tunnels in some high-altitude areas have huge elevation differences and water inflow volumes. For example, a tunnel with a total length of 881m has a continuous downhill slope along its entire length, with a maximum elevation difference of 40m and a maximum water inflow of 50,000 m³ / d in the inclined shaft section. The main tunnel section is a continuous uphill slope with a maximum elevation difference of 128m and a maximum water inflow of 75,000 m³ / d. The intersection of the inclined shaft and the main tunnel is the lowest point of the line, where water inflow reaches 125,000 m³ / d. For these tunnels, a large amount of space needs to be freed up inside the main tunnel to place a large number of water pumps and their auxiliary equipment (such as electrical cabinets) and to build multiple water collection tanks. This results in low space utilization inside the main tunnel, and the water pumps and water collection tanks also hinder other construction operations inside the main tunnel. At the same time, fixed water collection tanks also have the problem of not being able to advance with the tunnel face, resulting in a decrease in water collection efficiency. Therefore, it is urgent to develop a reverse slope drainage system with a more reasonable spatial layout. Utility Model Content

[0004] The purpose of this utility model is to overcome the technical problem that existing tunnel reverse slope drainage systems occupy a large amount of space inside the tunnel main tunnel, resulting in a reduction in the space utilization rate of the tunnel main tunnel and hindering the construction of the tunnel main tunnel, and to provide a tunnel reverse slope drainage system.

[0005] In a first aspect, the present invention provides a tunnel reverse slope drainage system, comprising:

[0006] A sump pit is used to collect runoff from inside the tunnel.

[0007] The mobile water tank is adjustable in position along the tunnel's main axis.

[0008] Pumping stations, at least two pumping stations are set at intervals in the tunnel inclined shaft. Each pumping station includes a water collection tank and an equipment platform, with the equipment platform located above the water collection tank.

[0009] Water supply pipelines connect the water collection pit and the mobile water tank, the mobile water tank and the water collection chamber closest to the main tunnel, and two adjacent water collection chambers. A drainage pipeline is connected to the water collection chamber closest to the tunnel inclined shaft entrance, and the drainage pipeline extends to the outside of the tunnel inclined shaft. Water pumps are installed in the water collection pit, the mobile water tank, and the equipment platform.

[0010] Preferably, a water collection ditch is also provided in the main tunnel, and / or a water collection ditch is provided in the inclined tunnel; the water collection ditch is provided along the length of the main tunnel or the inclined tunnel, and the water collection ditch is connected to the water collection pit, and the water collection ditch is used to collect the scattered water in the main tunnel and / or the scattered water in the inclined tunnel.

[0011] Preferably, the number of water collection ditches is at least two, with at least one water collection ditch used for collecting sewage and at least one water collection ditch used for collecting clean water; the number of water collection pits, the number of mobile water tanks, and the number of water collection chambers are all matched with the number of water collection ditches.

[0012] Preferably, a clear water pool and / or sedimentation pool are also provided outside the entrance of the tunnel inclined shaft; the drainage pipeline on the water collection tank for collecting clear water is connected to the clear water pool, and the drainage pipeline on the water collection tank for collecting sewage is connected to the sedimentation pool.

[0013] Preferably, the water collection ditch for collecting clean water inside the tunnel main tunnel includes a side wall ditch and a central ditch; the side wall ditch is set on both sides of the tunnel main tunnel along its transverse direction, and the side wall ditch is used to collect clean water seeping from the back of the tunnel main tunnel lining; the central ditch is set between the two side wall ditches, and the central ditch is connected to the side wall ditch through a transverse water pipe, and the central ditch is connected to the water collection pit.

[0014] Preferably, an equipment tunnel is provided on the side of the tunnel inclined shaft, and the equipment tunnel is connected to the tunnel inclined shaft, with the pump station located in the equipment tunnel.

[0015] Preferably, the mobile water tank is connected to a lifting lug.

[0016] Preferably, the water pumps on the equipment platform include a centrifugal pump and a vacuum pump. The centrifugal pump has an exhaust port on the top of its casing, and the vacuum pump's air inlet pipe is connected to the exhaust port.

[0017] Preferably, a gantry crane is also provided above the equipment platform, and the working range of the gantry crane covers at least the equipment platform.

[0018] Preferably, it also includes a dual-power transmission system, which includes:

[0019] A ring main unit (RMU) consists of an input terminal and an output terminal.

[0020] The first power supply line has one end electrically connected to the input terminal and the other end electrically connected to the mains power supply. An output detection module is installed on the first power supply line. The output detection module includes a current sensor and / or a voltage sensor.

[0021] A second power supply line has one end electrically connected to the input terminal and the other end electrically connected to a power generation module; the power generation module includes at least one generator.

[0022] The control module communicates with the current sensor and the power generation module. The control module can receive the readings from the output detection module and control the start and stop of the power generation module based on the readings.

[0023] The output line has one end electrically connected to the output terminal and the other end electrically connected to the water pump.

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0025] This utility model provides a tunnel reverse slope drainage system. By setting up a pumping station in the tunnel inclined shaft, stacking the water collection tank and water pump of the pumping station in the vertical direction, and setting a mobile water tank in the tunnel main tunnel, it can avoid the pumping station from encroaching on the internal space of the tunnel main tunnel, improve the space utilization rate inside the tunnel inclined shaft, and ensure that this utility model can drain the tunnel efficiently and in a timely manner. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the plan layout of a tunnel reverse slope drainage system according to the present invention;

[0027] Figure 2 This is a schematic diagram of the cross-sectional structure of a tunnel reverse slope drainage system at a pumping station according to this utility model;

[0028] Figure 3 This is a partial three-dimensional cross-sectional view of a pump station for a tunnel reverse slope drainage system according to this utility model.

[0029] Figure 4 This is a three-dimensional structural diagram of the equipment platform of a tunnel reverse slope drainage system according to this utility model;

[0030] Figure 5 This is a three-dimensional structural diagram of a truss crane device for a tunnel reverse slope drainage system according to this utility model;

[0031] Figure 6 This is a three-dimensional structural diagram of a water pump for a tunnel reverse slope drainage system according to this utility model.

[0032] Figure 7 This is a front view structural diagram of a water pump for a tunnel reverse slope drainage system according to this utility model;

[0033] Figure 8 This is a partially enlarged three-dimensional structural diagram of a water pump in a tunnel reverse slope drainage system according to this utility model.

[0034] Figure 9 This is a simplified wiring diagram of a dual-power transmission system for a tunnel reverse slope drainage system according to this utility model.

[0035] Figure 10 This is a partially simplified wiring diagram of a dual-power transmission system for a tunnel reverse slope drainage system according to this utility model.

[0036] Figure 11 This is a wiring diagram of a dual-power transmission system for a tunnel reverse-slope drainage system according to this utility model. Figure 1 ;

[0037] Figure 12 This is a wiring diagram of a dual-power transmission system for a tunnel reverse-slope drainage system according to this utility model. Figure 2 ;

[0038] icon:

[0039] 1-Tunnel main tunnel; 2-Tunnel inclined shaft; 21-Equipment tunnel; 3-Water sump; 4-Mobile water tank;

[0040] 5-Pump station; 51-Water collection tank; 52-Equipment platform; 521-Observation port; 522-Guardrail; 523-Ladder; 531-Longitudinal beam; 532-Crossbeam; 533-Lifting trolley; 5331-Hook; 534-Connecting beam;

[0041] 61-Water supply pipeline; 62-Drainage pipeline;

[0042] 7-Water pump; 71-Centrifugal pump; 711-Pump casing; 72-Indicating water tank; 721-Drainage pipe; 7211-First right-angle elbow; 7212-First vertical section; 73-Vacuum pump; 731-Inlet pipe; 732-Outlet pipe; 7321-Second right-angle elbow; 7322-Second vertical section; 74-Enlarged base;

[0043] 8-Water collection ditch; 81-Side wall water ditch; 82-Central water ditch; 83-Horizontal water pipe;

[0044] 91-Ring mains unit; 911-Low-voltage busbar; 912-High-voltage busbar; 92-Main power; 93-Output detection module; 94-Generator module; 941-Generator; 9411-Parallel controller; 95-Control module; 96-Transformer; 97-Low-voltage side feeder; 9101-First power supply line; 9102-Second power supply line; 9103-Output line. Detailed Implementation

[0045] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0046] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0047] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0048] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0049] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0050] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0051] Example 1

[0052] like Figures 1 to 12 As shown, a tunnel reverse slope drainage system includes a sump 3, a mobile water tank 4, and a pumping station 5.

[0053] The sump pit 3 is used to collect the scattered water in the main tunnel 1, or the scattered water in the main tunnel 1 and the inclined shaft 2; the position of the mobile water tank 4 along the axis of the main tunnel 1 is adjustable; at least two pump stations 5 are spaced apart in the inclined shaft 2, each pump station 5 including a water collection chamber 51 and an equipment platform 52, with the equipment platform 52 located above the water collection chamber 51; the sump pit 3 and the mobile water tank 4, the mobile water tank 4 and the water collection chamber 51 closest to the main tunnel 1, and the two adjacent water collection chambers 51 are all connected by water supply pipelines 61; the water collection chamber 51 closest to the entrance of the inclined shaft 2 is connected to a drainage pipeline 62, which extends to the outside of the inclined shaft 2; water pumps 7 are installed in the sump pit 3, the mobile water tank 4, and the equipment platform 52.

[0054] exist Figures 1 to 5 The various directions in this embodiment are also marked using a Cartesian coordinate system, where the X-axis represents the length direction of the tunnel and the length direction of the main tunnel 1; the Y-axis represents the width direction of the main tunnel 1; and the Z-axis represents the height direction.

[0055] In this embodiment of the tunnel reverse slope drainage system, when draining the tunnel, the scattered water at various points along the tunnel is first collected through the sump pit 3, and then pumped to the mobile water tank 4 by the water pump 7 in the sump pit 3. The water is then pumped to the collection chamber 51 of the pumping station 5 by the water pump 7 in the mobile water tank 4. The water is then transported along the length of the tunnel inclined shaft 2 towards the entrance of the tunnel inclined shaft 2 by at least two pumping stations 5 until it reaches the collection chamber 51 of the last pumping station 5. The water then leaves the tunnel inclined shaft 2 through the drainage pipeline 62 and awaits further processing.

[0056] Compared with the prior art, this embodiment has two advantages. First, by setting the pump station 5 inside the tunnel inclined shaft 2, it can avoid the pump station 5 encroaching on the internal space of the tunnel main tunnel 1 and causing the construction of the tunnel main tunnel 1 to be hindered by the pump station 5. Second, this embodiment also arranges the water collection tank 51, equipment platform 52 and water pump 7 of the pump station 5 to be stacked sequentially from bottom to top. This can make use of the vertical space inside the tunnel inclined shaft 2 to greatly reduce the space occupied by the water collection tank 51 and water pump 7 along the longitudinal direction of the tunnel inclined shaft 2, thereby improving the space utilization rate inside the tunnel inclined shaft 2.

[0057] Meanwhile, this embodiment also installs a mobile water tank 4 inside the main tunnel 1. The mobile water tank 4 can move forward accordingly as the tunnel face advances. On the one hand, this avoids the need to constantly dismantle and build new water tanks as the tunnel face advances. On the other hand, it also enables the mobile water tank 4 to collect sewage from the tunnel face in a timely manner with high efficiency, thereby ensuring that this embodiment can drain the main tunnel 1 efficiently and in a timely manner.

[0058] It should be noted that the specific location and dimensions of the sump pit 3 will be constructed based on the actual water inflow situation on site, and it may be dismantled after the corresponding drainage work is completed; while the position of the movable water tank 4 is adjustable, therefore Figure 1 The arrangement in the example is just one example; for instance, if sewage from the tunnel face is to be collected, a pit can be dug near the tunnel face as a collection pit 3; or an auxiliary tunnel can be added to the side of the main tunnel 1 and the collection pit 3 can be placed in the auxiliary tunnel.

[0059] In an optional embodiment, a water collection ditch 8 is also provided inside the main tunnel 1. The water collection ditch 8 is arranged along the length of the main tunnel 1 and is connected to the water collection pit 3. The water collection ditch 8 is used to collect the scattered water inside the main tunnel 1, including sewage generated during the excavation of the tunnel face and / or clean water seeping into the main tunnel 1 from behind the lining. This embodiment can use the water collection ditch 8 to collect scattered water from various places inside the main tunnel 1 along the length of the main tunnel 1 and collect it in the water collection pit 3 for subsequent centralized drainage.

[0060] It should be noted that the water collection ditch 8 and the water collection pit 3, as well as the subsequent side wall water ditch 81 and the drainage blind pipe, can be connected in various ways, including but not limited to being connected through rigid pipes or flexible hoses, or through slopes or water troughs, as long as the water in the water collection ditch 8 can be collected into the water collection pit 3.

[0061] In an optional embodiment, a water collection ditch 8 is provided inside the tunnel inclined shaft 2. The water collection ditch 8 is arranged along the length of the tunnel inclined shaft 2 and is connected to a water collection pit 3. The water collection ditch 8 is used to collect scattered water inside the tunnel inclined shaft 2, including clear water seeping from behind the lining of the tunnel inclined shaft 2 into the tunnel inclined shaft 2. This embodiment can use the water collection ditch 8 to collect scattered water from various places inside the tunnel inclined shaft 2 along the length of the tunnel inclined shaft 2 and collect it in the water collection pit 3 for subsequent centralized pumping.

[0062] In the above embodiments, the number of collection ditches 8 is at least two, with at least one collection ditch 8 used for collecting sewage and at least one collection ditch 8 used for collecting clean water; the number of collection pits 3, mobile water tanks 4, and collection chambers 51 are all matched with the number of collection ditches 8. Since the discharge standards and subsequent treatment methods for sewage and clean water are different, this embodiment suggests using different collection ditches 8 to collect sewage and clean water respectively, and then sequentially transporting them to different collection pits 3, mobile water tanks 4, and collection chambers 51, to facilitate subsequent different treatments for sewage and clean water.

[0063] It should be noted that in the above embodiments, the number of water collection pits 3, the number of mobile water tanks 4, and the number of water collection chambers 51 are all matched with the number of water collection ditches 8. This does not mean that the number of water collection pits 3, mobile water tanks 4, and water collection chambers 51 are all equal to the number of water collection ditches 8. Rather, it means that the water collection pits 3, mobile water tanks 4, and water collection chambers 51 are also divided into at least two types, one specifically for containing sewage and the other specifically for containing clean water. However, the specific number should be determined according to the actual situation. For example, one water collection pit 3 can correspond to multiple water collection ditches 8, or one water collection ditches 8 can correspond to multiple water collection pits 3.

[0064] In the above embodiments, the water pump 7 in the sump 3 and the mobile water tank 4 used for collecting sewage includes a submersible pump.

[0065] In an optional embodiment, a clear water pool and / or sedimentation pool are also provided outside the tunnel shaft 2; the drainage pipeline 62 of the water collection tank 51 for collecting clear water is connected to the clear water pool, and the clear water in the clear water pool can be directly discharged into the adjacent water body; the drainage pipeline 62 of the water collection tank 51 for collecting sewage is connected to the sedimentation pool, and the sewage is then transported to the sewage treatment plant for treatment before being discharged.

[0066] In an optional embodiment, the water collection ditch 8 for collecting clean water inside the tunnel main tunnel 1 includes a sidewall ditch 81 and a central ditch 82; the sidewall ditch 81 is respectively provided on both sides of the tunnel main tunnel 1 along its transverse direction, and the sidewall ditch 81 is used to collect clean water seeping from the back of the tunnel main tunnel 1 lining, for example, by connecting the sidewall ditch 81 to the drainage blind pipe in the tunnel lining or the tunnel floor; the central ditch 82 is provided between the two sidewall ditches 81, and the central ditch 82 is connected to the sidewall ditch 81 through a number of transverse water pipes 83; the length of the transverse water pipes 83 is set along the transverse direction of the tunnel, and the number of transverse water pipes 83 is distributed at intervals along the length direction of the tunnel; the central ditch 82 is connected to the water collection pit 3.

[0067] In an optional embodiment, an equipment tunnel 21 is provided on the side of the tunnel inclined shaft 2, the equipment tunnel 21 is connected to the tunnel inclined shaft 2, and the pump station 5 is located in the equipment tunnel 21.

[0068] In optional embodiments, the position adjustment of the mobile water tank 4 can be achieved in various ways, including but not limited to setting a wheeled walking device, a tracked walking device, or a footed walking device under the mobile water tank 4.

[0069] In the above embodiment, the mobile water tank 4 is connected to a lifting lug, which allows the mobile water tank 4 to be lifted and its position adjusted using a crane, excavator, or other means. This embodiment ensures the stability of the mobile water tank 4 after it is lowered, preventing it from slipping.

[0070] In an optional embodiment, at least one check valve is provided in the water supply pipeline 61 to prevent water from flowing back into the tunnel.

[0071] In an optional embodiment, the water pump 7 on the equipment platform 52 includes a centrifugal pump 71 and a vacuum pump 73. The top of the pump casing 711 of the centrifugal pump 71 is provided with an exhaust port, and the air inlet pipe 731 of the vacuum pump 73 is connected to the exhaust port. When the centrifugal pump 71 needs to be started, the vacuum pump 73 is started first. The vacuum pump 73 can efficiently remove the air from the top of the pump casing 711 and generate negative pressure in the pump casing 711, so that water can be gradually drawn into the pump casing 711 until the starting conditions of the centrifugal pump 71 are met. Compared with the prior art that requires manual water injection into the pump casing 711 of the centrifugal pump 71, this embodiment uses the vacuum pump 73 to generate negative pressure and then draw water, which has higher water injection efficiency and water injection speed, and is conducive to achieving rapid response in case of emergencies.

[0072] In the above embodiment, the water pump 7 on the equipment platform 52 also includes an indicator water tank 72, which has a water inlet. The air outlet pipe 732 of the vacuum pump 73 is connected to the water inlet of the indicator water tank 72. When the vacuum pump 73 is working, the water level in the pump casing 711 will continuously rise. Since the vent is located at the top of the pump casing 711, water will only enter the vent after the pump casing 711 is completely filled with water, and then enter the indicator water tank 72 through the air inlet pipe 731, the vacuum pump 73, and the air outlet pipe 732. Therefore, when it is observed that the indicator water tank 72 begins to fill with water, it indicates that the pump casing 711 is completely filled with water, which makes it convenient for operators to judge the start-up timing of the centrifugal pump 71.

[0073] In the above embodiments, both the centrifugal pump 71 and the vacuum pump 73 can be existing products. For example, the centrifugal pump 71 can be a single-stage centrifugal pump 71 or a multi-stage centrifugal pump 71, and the vacuum pump 73 can be a mechanical positive displacement vacuum pump 73 or a jet vacuum pump 73. However, it is necessary to use a model with waterproof function.

[0074] In the above embodiments, considering interference factors such as water waves and residual air bubbles in the dead corners inside the pump casing 711, for safety reasons, the centrifugal pump 71 should only be started after the water volume inside the indicator tank 72 reaches a specified volume (i.e., more water than the volume of the pump casing 711 has flowed through the pump casing 711). Therefore, the indicator tank 72 needs to have a certain volume. According to the inventor's practical experience, the volume of the indicator tank 72 can be greater than or equal to 0.5 to 1 times the volume of the pump casing 711. That is, if the indicator tank 72 is full, at least 1.5 to 2 times the volume of the pump casing 711 has flowed through the pump casing 711, thereby ensuring that the pump casing 711 is indeed filled with water and avoiding the vacuum pump 73 from operating for too long.

[0075] In the above embodiment, the indicator water tank 72 is also provided with a drain outlet, and a drain pipe 721 is connected to the drain outlet; this embodiment can facilitate the staff to drain the water accumulated in the indicator water tank 72.

[0076] In the above embodiment, a switch valve is connected to the drain outlet or drain pipe 721. The switch valve can be an existing product, and its specific form includes, but is not limited to, ball valve, gate valve or stop valve. This embodiment can facilitate the operator to control the opening and closing of the drain pipe 721.

[0077] In the above embodiment, the drain outlet is located on the side wall of the indicating water tank 72, and the height of the drain outlet from the bottom surface of the indicating water tank 72 is greater than zero. The specific height of the drain outlet matches the specified volume, so that when the water level in the indicating water tank 72 rises to the drain outlet, it indicates that the pump casing 711 is indeed filled with water; and as Figures 7 to 8As shown, the drain pipe 721 and the vent pipe 732 can be connected to the same side of the indicator water tank 72, or they can be connected to different sides of the indicator water tank 72 respectively.

[0078] In the above embodiment, the drainage pipe 721 includes a first vertical section 7212 and a first right-angle bend 7211. One end of the first right-angle bend 7211 is connected to the drain outlet, and the other end of the first right-angle bend 7211 is connected to the first vertical section 7212. The first vertical section 7212 extends downward along the height direction of the indicator water tank 72.

[0079] In the above embodiment, the top opening of the water tank 72 is indicated.

[0080] In the above embodiments, a scale can also be set on the indicator water tank 72, with the scale extending along the height direction of the indicator water tank 72, so that the staff can directly read the accurate water level inside the indicator water tank 72 through the scale.

[0081] The above embodiment also includes an enlarged base 74, which is connected to the bottom of the indicator water tank 72. The cross-sectional dimension of the enlarged base 74 is larger than that of the indicator water tank 72, thereby ensuring the stability of the indicator water tank 72.

[0082] In the above embodiment, the vacuum pump 73 is connected to the enlarged base 74, and the vacuum pump 73 is located on one side of the indicator tank 72.

[0083] In the above embodiment, the water inlet is located on the side wall of the indicator water tank 72; the air outlet pipe 732 includes a second vertical section 7322 and a second right-angle bend 7321. One end of the second vertical section 7322 is connected to the vacuum pump 73, and the other end of the second vertical section 7322 extends towards the water inlet along the height direction of the indicator water tank 72; one end of the second right-angle bend 7321 is connected to the end of the air outlet pipe 732 away from the vacuum pump 73, and the other end of the second right-angle bend 7321 is connected to the water inlet.

[0084] In the above embodiments, the enlarged base 74 is a square frame structure assembled from steel profiles, including but not limited to angle steel, channel steel, I-beams, or square steel.

[0085] In the above embodiment, the intake pipe 731 is a flexible hose, such as a rubber hose or a silicone hose, so as to enable... Figure 6 and Figure 7 As shown, the relative positions of the centrifugal pump 71 and the vacuum pump 73 can be freely changed.

[0086] When it is necessary to start this vacuum suction-assisted pumping system, the following steps can be taken:

[0087] S1. Start the vacuum pump 73. The vacuum pump 73 will draw air out of the pump housing 711 and discharge it through the air outlet pipe 732. At the same time, it will cause a negative pressure in the pump housing 711, so that the water in the water collection tank 51 will be drawn into the pump housing 711 through the water inlet pipe until the pump housing 711 is filled and enters the indicator water tank 72 in sequence through the exhaust hole, the air inlet pipe 731, the vacuum pump 73 and the air outlet pipe 732.

[0088] S2. Wait for the water level in the indicator tank 72 to reach the specified volume, such as when the water level in the indicator tank 72 reaches the height of the drain outlet, or when the water level in the indicator tank 72 reaches the scale corresponding to the specified volume; at this time, start the centrifugal pump 71 and turn off the vacuum pump 73; then the centrifugal pump 71 can continuously pump water from the water collection chamber 51 using its own power.

[0089] In an optional embodiment, a gantry crane is also provided above the equipment platform 52, and the working range of the gantry crane covers at least the equipment platform 52; the gantry crane includes a longitudinal beam 531, a crossbeam 532, and a lifting trolley 533; the longitudinal beam 531 is arranged along the longitudinal direction of the tunnel, the crossbeam 532 is arranged along the transverse direction of the tunnel, the crossbeam 532 is slidably connected to the longitudinal beam 531, and the crossbeam 532 can move along the longitudinal beam 531; the lifting trolley 533 is slidably connected to the crossbeam 532, and the lifting trolley 533 can move along the crossbeam 532; a winch and a hook 5331 are provided on the lifting trolley 533.

[0090] In this embodiment, a gantry crane is further provided above the equipment platform 52. On the one hand, it can further utilize the vertical space inside the tunnel inclined shaft 2 and significantly reduce the space occupied by the gantry crane along the longitudinal direction of the tunnel inclined shaft 2, thereby improving the space utilization rate inside the tunnel inclined shaft 2. On the other hand, compared with the prior art of using multiple fixed lifting devices to relay the water pump 7, the gantry crane in this embodiment includes a crossbeam 532 that can move along the longitudinal beam 531 (tunnel longitudinal direction) and a lifting trolley 533 that can move along the crossbeam 532 (tunnel transverse direction). Thus, a single gantry crane can cover all areas below it, thereby quickly lifting and transporting the water pump 7 on the equipment platform 52. This not only reduces the equipment cost and maintenance cost of the water pump 7 lifting equipment, but also improves the transportation efficiency of the water pump 7.

[0091] In the above embodiments, the equipment platform 52 can be directly connected to the tunnel structure by means of expansion bolts, anchor bolts or embedded parts, or it can be supported above the water collection tank 51 by outriggers.

[0092] In the above embodiment, the equipment platform 52 includes a steel panel and an orthogonal frame. The orthogonal frame is connected to the sidewall of the tunnel. The orthogonal frame includes several orthogonally arranged steel sections (such as channel steel, I-beams, or square steel). That is, the orthogonal frame includes at least two longitudinal steel sections and at least two transverse steel sections. The length of the longitudinal steel sections is set along the longitudinal direction of the tunnel, and each longitudinal steel section is distributed at intervals along the transverse direction of the tunnel. The length of the transverse steel sections is set along the transverse direction of the tunnel, and each transverse steel section is distributed at intervals along the longitudinal direction of the tunnel. The longitudinal steel sections and transverse steel sections intersect each other to form a grid-like frame structure, that is, the orthogonal frame. The steel panel is connected to the top surface of the orthogonal frame.

[0093] In the above embodiment, the equipment platform 52 is also provided with an observation port 521, which is connected to the water collection tank 51. For example Figure 4 As shown, a rectangular opening is provided on the equipment platform 52 as an observation port 521, which allows staff to easily observe the water storage status of the lower water collection tank 51 on the equipment platform 52, so as to adjust the drainage plan accordingly.

[0094] In the above embodiment, at least one ladder 523 is provided on the edge of the observation port 521. One end of the ladder 523 leads to the equipment platform 52, and the other end of the ladder 523 leads to the water collection tank 51. This embodiment can facilitate the staff to go down from the equipment platform 52 into the water collection tank 51 to inspect and maintain the water collection tank 51, and return smoothly to the equipment platform 52 after completing the inspection and maintenance work.

[0095] In the above embodiment, a guardrail 522 is provided around the observation port 521; this embodiment can prevent staff from accidentally falling from the observation port 521 into the water collection tank 51.

[0096] In the above embodiment, a gate is provided near the ladder 523 on the guardrail 522. The gate can be opened and closed so that staff can reach the ladder 523.

[0097] In the above embodiment, a lifebuoy is hung on the guardrail 522 to rescue people who accidentally fall into the water collection tank 51.

[0098] In the above embodiments, the longitudinal beam 531 can be directly connected to the tunnel structure by means of expansion bolts, anchor bolts or embedded parts, or it can be supported above the equipment platform 52 by outriggers.

[0099] In the above embodiments, the longitudinal beam 531 is connected to the top of the tunnel. For example, it can be suspended from the top of the tunnel by a hanger or a gantry, or it can be directly connected to the top of the tunnel by means of expansion bolts, anchor bolts, or embedded parts.

[0100] In the above embodiments, there are at least two longitudinal beams 531, which are distributed at intervals along the width direction of the tunnel, and the crossbeams 532 are simultaneously slidably connected to at least two longitudinal beams 531.

[0101] In the above embodiment, at least one end of the longitudinal beam 531 extends beyond the equipment platform 52 along the longitudinal direction of the tunnel.

[0102] In the above embodiment, a connecting beam 534 is also connected between two adjacent longitudinal beams 531. The length of the connecting beam 534 is set along the transverse direction of the tunnel, and the two ends of the connecting beam 534 are respectively connected to the longitudinal beam 531 on the corresponding side.

[0103] In the above embodiments, the number of connecting beams 534 is at least two, and the connecting beams 534 are distributed at intervals along the longitudinal direction of the tunnel.

[0104] In the above embodiments, the sliding connection between the crossbeam 532 and the longitudinal beam 531 includes, but is not limited to: setting a slide rail slider mechanism, screw nut mechanism or gear rack mechanism extending longitudinally along the tunnel on the longitudinal beam 531 to connect the crossbeam 532 to the slider, nut or gear; or directly setting rollers on the crossbeam 532 so that the crossbeam 532 can travel on the longitudinal beam 531 via the rollers.

[0105] In the above embodiment, there are at least two crossbeams 532, which are distributed at intervals along the longitudinal direction of the tunnel; the crane trolley 533 is slidably connected between two adjacent crossbeams 532.

[0106] In the above embodiments, the longitudinal beam 531, the transverse beam 532 and the connecting beam 534 are all steel structural members, such as channel steel, double channel steel, I-beam or square steel.

[0107] In the above embodiments, the sliding connection between the trolley 533 and the crossbeam 532 includes, but is not limited to: setting a slide rail slider mechanism, screw nut mechanism or gear rack mechanism extending laterally along the tunnel on the crossbeam 532 to connect the trolley 533 to the slider, nut or gear; or directly setting rollers on the trolley 533 so that the trolley 533 can travel on the crossbeam 532 via the rollers.

[0108] In the above embodiments, the hook 5331 is connected to the winch via an iron chain, thereby ensuring a reliable connection between the hook 5331 and the winch.

[0109] In an optional embodiment, a dual-power transmission system is also included. The dual-power transmission system includes a ring main unit 91, a first power supply line 9101, a second power supply line 9102, a control module 95, and an output line 9103. The ring main unit 91 includes an input terminal and an output terminal. One end of the first power supply line 9101 is electrically connected to the input terminal, and the other end of the first power supply line 9101 is electrically connected to the mains power 92. An output detection module 93 is provided on the first power supply line 9101. The output detection module 93 includes a current sensor and / or a voltage sensor. One end of the second power supply line 9102 is electrically connected to the input terminal, and the other end of the second power supply line 9102 is electrically connected to a generator module 94. The generator module 94 includes at least one generator 941. The control module 95 is communicatively connected to the current sensor and the generator module 94. The control module 95 can receive the readings from the output detection module 93 and control the start and stop of the generator module 94 according to the readings. One end of the output line 9103 is electrically connected to the output terminal, and the other end of the output line 9103 is electrically connected to the water pump 7.

[0110] The dual-power transmission system of this embodiment connects two power sources in parallel: the mains power 92 and the generator module 94. When the mains power 92 fails, the control module 95 can detect a change in the reading of the current sensor in the first power supply line 9101, thereby automatically starting the generator 941 and supplying power to the ring mains cabinet 91 through the second power supply line 9102 instead of the mains power 92. This allows the ring mains cabinet 91 to quickly restore its power supply to the water pump 7 in the tunnel through the output line 9103, thus preventing the tunnel from flooding.

[0111] In the above embodiment, the power generation module 94 includes at least two generators 941 connected in parallel. The control module 95 can control the number of generators 941 started and / or the output power of the generators 941 in the power generation module 94. In addition to increasing the power generation redundancy and robustness of the power generation module 94, this embodiment also enables the control module 95 to control the total output power of the power generation module 94 by controlling the number of generators 941 started and stopped, so as to accurately match the actual power demand of the tunnel, thereby improving the utilization rate of the generators 941, reducing power waste and corresponding additional operation and maintenance costs.

[0112] In the above embodiment, the generator 941 further includes a parallel controller 9411, which includes at least one of a voltage regulation module (also known as an AVR or voltage regulator), a frequency regulation module, a phase regulation module, and a speed regulation module (also known as a GOV). The parallel controllers 9411 of each generator 941 are interconnected, so that the parallel controllers 9411 can synchronize the operating states of each generator 941. The operating states include at least one of voltage, frequency, and phase. This embodiment can avoid circulating current or equipment abnormalities caused by asynchronous operating states of each generator 941, thereby ensuring that each generator 941 can safely and smoothly transition to the parallel operation state. The speed regulation module can facilitate the power generation module 94 to allocate different speeds to each generator 941 according to the actual power demand, thereby realizing load distribution on demand. The voltage regulation module, frequency regulation module, phase regulation module, and speed regulation module can all directly adopt existing products or existing circuit designs.

[0113] In the above embodiments, the generator 941 further includes a diagnostic module, which includes at least one of a speed sensor, a voltage sensor, a current sensor, a temperature sensor, and a vibration sensor. The control module 95 is communicatively connected to the diagnostic module. The control module 95 can determine the operating status of the corresponding generator 941 based on the detection data of the diagnostic module. When the detection data of the diagnostic module exceeds the set safety range, such as the speed exceeding the maximum speed given by the manufacturer, or the temperature exceeding the maximum temperature given by the manufacturer, the control module 95 determines that the generator 941 is faulty and shuts down the faulty generator 941 by, for example, cutting off the fuel supply.

[0114] In the above embodiments, the ring main unit 91 also includes a display module, which is communicatively connected to the diagnostic module and can display the test data of the diagnostic module. The display module can use existing products, including but not limited to pointer dials, digital tubes, LED screens or OLED screens. The display module can also integrate a sound alarm system or an optical alarm system, so that when an abnormality occurs in the test data, the display module can directly remind staff to take refuge or come for inspection.

[0115] In the above embodiments, a transformer 96 is also provided between the mains power 92 and the output line 9103, and / or a transformer 96 is also provided between the power generation module 94 and the output line 9103, so that the voltage of the mains power 92 and / or the generator 941 can be converted into the required voltage, such as raising the 220V voltage of the mains power 92 to 10KV, or raising the 400V voltage output by the generator 941 to 10KV.

[0116] In the above embodiments, the specific number and location of transformers 96 depend on whether the output of the mains power 92 and the generator 941 meets the demand. For example, if only the voltage of the mains power 92 is insufficient, a transformer 96 can be installed between the first power supply line 9101 and the ring main unit 91; if only the voltage of the generator 941 is insufficient, a transformer 96 can be installed between the generator 941 and the ring main unit 91; if neither the voltage of the mains power 92 nor the voltage of the generator 941 meets the demand, then... Figure 9 As shown, a transformer 96 is installed in front of the ring main unit 91. The first power supply line 9101 and the second power supply line 9102 are both connected in parallel to the transformer 96. The transformer 96 is then electrically connected to the input terminal of the ring main unit 91. Thus, the transformer 96 can simultaneously handle the transformation of the first power supply line 9101 and the second power supply line 9102, thereby saving the hardware cost of the transformer 96.

[0117] In the above embodiments, the ring main unit 91 includes a heating module; the heating module enables the ring main unit 91 to withstand low temperatures, and the heating module can be an existing product, including but not limited to resistance wire heaters, ceramic heaters or quartz tube heaters.

[0118] In the above embodiments, the ring main unit 91 includes a dehumidification module, which enables the ring main unit 91 to resist humid environments. The dehumidification module can be an existing product, including but not limited to condenser dehumidifiers, rotary dehumidifiers or semiconductor dehumidifiers.

[0119] In the above embodiments, the ring main unit 91 includes an uninterruptible power supply module; the uninterruptible power supply module, also known as a UPS module, can provide the ring main unit 91 with the basic power required for operation after the mains power 92 is cut off and before the generator 941 is started, so as to prevent the ring main unit 91 from being unable to switch normally between the first power supply line 9101 and the second power supply line 9102 due to a complete power outage.

[0120] In the above embodiments, an electrical interlock and / or mechanical interlock are provided between the first power supply line 9101 and the second power supply line 9102 to prevent the risk of electric shock caused by accidental contact by personnel. The specific design of the electrical and mechanical interlocks can refer to existing specifications and use existing products. For example, normally closed auxiliary contacts can be provided on the contactors of the first power supply line 9101 and the second power supply line 9102, and the normally closed auxiliary contacts of the first power supply line 9101 and the second power supply line 9102 can be connected to the second power supply line 9102 and the first power supply line 9101, respectively. This way, when the first power supply line 9101 is turned on, the auxiliary contacts of the second power supply line 9102 are turned off and cannot be energized. When the second power supply line 9102 is connected, the auxiliary contact of the first power supply line 9101 is disconnected and cannot be energized, thereby achieving electrical interlocking between the first power supply line 9101 and the second power supply line 9102; or a mechanical interlocking device is set between the operating handles of the first power supply line 9101 and the second power supply line 9102. When the operating handle of the first power supply line 9101 is connected, the mechanical interlocking device will lock the operating handle of the second power supply line 9102, and vice versa.

[0121] In the above embodiments, at least one of the first power supply line 9101, the second power supply line 9102, and the output line 9103 is provided with a feeder protection module so as to automatically cut off the power protection device when the first power supply line 9101, the second power supply line 9102, and the output line 9103 are damaged. The feeder protection module can refer to existing circuit design and use existing products. Taking the first power supply line 9101 as an example, an air circuit breaker with overload protection or an existing feeder protection relay can be installed in the first power supply line 9101.

[0122] In the above embodiments, the generator 941 includes a diesel generator 941, which can ensure the reliable operation of the generator 941 and generate electricity for a long time, and can adapt to harsh environments such as high temperature, high humidity and high altitude, and is especially suitable for the construction of high-altitude tunnels.

[0123] In the above embodiments, the current sensor can be an existing product, and its specific form includes, but is not limited to, current transformers, voltage transformers, ammeters, or Hall current sensors.

[0124] In the above embodiment, the output detection module 93 includes a voltage transformer, which can detect whether the mains power 92 is interrupted by detecting the voltage in the first power supply line 9101.

[0125] In the above embodiment, a power detection module is provided in the output line 9103. The power detection module includes a current sensor and / or a voltage sensor. The power detection module is used to detect the total power of the electrical appliances in the tunnel. The power detection module is communicatively connected to the control module 95, so that the control module 95 can automatically change the number of generators 941 to start and / or the output power of generators 941 according to the total power of the electrical appliances in the tunnel, thereby further improving the automation level of this embodiment.

[0126] like Figure 11 The diagram shown is a more detailed electrical wiring diagram of a dual-power intelligent network power supply system according to this embodiment (only a part of the electrical connections are shown, so the control module 95 and the output detection module 93 are not shown); it can be seen that the mains power 92 is electrically connected to the high-voltage busbar 912 of the ring network cabinet 91 through the first power supply line 9101, and then electrically connected to the tunnel transformer 96 through the high-voltage busbar 912, thereby providing power to the tunnel.

[0127] The power generation module 94 includes three generators 941, which are connected via MSC communication so that the parallel controller 9411 can synchronize the operating status of each generator 941. Each of the three generators 941 has an independent switch to switch the number of generators 941 connected to the grid. All three generators 941 are electrically connected to the low-voltage busbar 911 of the ring main unit 91, and then electrically connected to the high-voltage busbar 912 through the transformer 96 and the second power supply line 9102, thereby providing power to the tunnel and ensuring that the voltage output by the generators 941 can meet the power demand of the tunnel.

[0128] And as Figure 11 As shown, the contacts of the first power supply line 9101 and the second power supply line 9102 are also interlocked to prevent the first power supply line 9101 and the second power supply line 9102 from being accidentally connected at the same time.

[0129] A low-voltage side feeder 97 is also connected to one side of the ring main unit 91 so that the power supply protection device can be automatically cut off when the line is damaged.

[0130] like Figure 12The diagram shown is a more detailed electrical wiring diagram of another dual-power intelligent network power supply system in this embodiment (only a portion of the electrical connections are shown, therefore the control module 95 and output detection module 93 are not shown); it can be seen that the mains power 92 is electrically connected to the input terminal of the ring main unit 91 through the first power supply line 9101, and the generator module 94 is electrically connected to the other input terminal of the ring main unit 91 through the second power supply line 9102. The ring main unit 91 is equipped with a switching switch to allow switching between the two input terminals (i.e., switching between the first power supply line 9101 and the second power supply line 9102); the output terminal of the ring main unit 91 is connected to the cable branch box through the output line 9103, and then transformed by the transformer 96 for tunnel power supply.

[0131] The operating principle of this embodiment is as follows:

[0132] When the mains power 92 is supplying power normally, the current sensor can detect normal input (e.g., 220V power input). At this time, the control module 95 does not send a start signal to any generator 941. The ring mains cabinet 91 only receives the mains power 92 through the first power supply line 9101 and supplies power to the equipment in the tunnel, such as the pump station 5 and lighting equipment, through the output line 9103.

[0133] When the mains power 92 fails, the current sensor can detect that there is no output in the first power supply line 9101. At this time, the control module 95 sends a start signal to the corresponding number of generators 941 according to the actual power demand. The generators 941 generate electricity and input the power into the ring network cabinet 91 through the second power supply line 9102, and then supply power to the equipment in the tunnel, such as the pump station 5 and lighting equipment, through the output line 9103.

[0134] When the mains power 92 is restored, the current sensor can detect normal input (e.g., 220V power input) again. At this time, the control module 95 sends a shutdown signal to the generator 941, and the second power supply line 9102 stops outputting power to the ring mains cabinet 91, so that the ring mains cabinet 91 switches back to the working mode of receiving mains power 92 through the first power supply line 9101 and supplying power to the equipment in the tunnel through the output line 9103.

[0135] When a parallel controller 9411 is installed on the motor, after the motor starts, the parallel controller 9411 will first ensure that the operating status of each motor is synchronized. Then, each generator 941 will be electrically connected to the ring main unit 91 one by one, thereby ensuring that each generator 941 can safely and smoothly transition to the parallel operation state and reducing the impact of the generator 941 grid connection on the power grid. The criteria for judging the synchronization of the operating status are: frequency difference less than 0.5Hz, voltage difference less than 10%, and phase difference less than 20°. The speed of each motor may be adjusted separately according to the power demand, so it can not be used as a basis for judging whether the operating status is synchronized.

[0136] When the power demand of electrical appliances in the tunnel changes, the control module 95 can match the corresponding power demand by changing the number of generators 941 that are started. For example, when the power demand increases, the number of generators 941 that are started increases, and when the power demand decreases, the number of generators 941 that are started decreases. Alternatively, the speed of each generator 941 can be adjusted. For example, when the power demand increases, the average speed of the generators 941 increases, and when the power demand decreases, the average speed of the generators 941 decreases. It should be noted that when a parallel controller 9411 is installed on the motor, the speed of each generator 941 can also be adjusted according to the load of each generator 941 through the speed adjustment module. For example, when the load of a certain generator 941 is too high, the speed of that generator 941 can be reduced and the speed of the other generators 941 can be increased, thereby avoiding the overload or underload of a certain generator 941 and maintaining load balance.

[0137] After testing, this embodiment can quickly restore power within five minutes after a power outage of 92 kilowatts, thereby effectively preventing tunnel flooding accidents.

[0138] The above content is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tunnel counter-slope drainage system, characterized in that, include: Water collection pit (3), the water collection pit (3) is used to collect the scattered water in the tunnel; The position of the mobile water tank (4) along the axis of the tunnel main tunnel (1) is adjustable; Pumping stations (5), at least two pumping stations (5) are spaced apart in the tunnel inclined shaft (2), each pumping station (5) includes a water collection tank (51) and an equipment platform (52), the equipment platform (52) being located above the water collection tank (51); The water collection pit (3) and the mobile water tank (4), the mobile water tank (4) and the water collection chamber (51) closest to the main tunnel (1), and the two adjacent water collection chambers (51) are all connected by water supply pipelines (61); the water collection chamber (51) closest to the tunnel inclined shaft (2) is connected to a drainage pipeline (62), which extends to the outside of the tunnel inclined shaft (2); water pumps (7) are installed in the water collection pit (3), the mobile water tank (4) and the equipment platform (52).

2. A tunnel counter-slope drainage system according to claim 1, wherein, A water collection ditch (8) is also provided in the main tunnel (1), and / or a water collection ditch (8) is provided in the inclined shaft (2) of the tunnel. The water collection ditch (8) is set along the length of the tunnel main tunnel (1) or the tunnel inclined shaft (2). The water collection ditch (8) is connected to the water collection pit (3). The water collection ditch (8) is used to collect the scattered water in the tunnel main tunnel (1) and / or the scattered water in the tunnel inclined shaft (2).

3. A tunnel reverse slope drainage system according to claim 2, characterized in that, The number of water collection ditches (8) is at least two, at least one of the water collection ditches (8) is used to collect sewage, and at least one of the water collection ditches (8) is used to collect clean water; the number of water collection pits (3), the number of mobile water tanks (4) and the number of water collection chambers (51) are all matched with the number of water collection ditches (8).

4. A tunnel reverse slope drainage system according to claim 3, characterized in that, Outside the opening of the tunnel inclined shaft (2), there is also a clear water pool and / or a sedimentation pool; the drainage pipeline (62) on the water collection tank (51) for collecting clear water is connected to the clear water pool, and the drainage pipeline (62) on the water collection tank (51) for collecting sewage is connected to the sedimentation pool.

5. A tunnel reverse slope drainage system according to claim 3, characterized in that, The water collection ditch (8) for collecting clean water in the main tunnel (1) includes a side wall ditch (81) and a central ditch (82); the side wall ditch (81) is provided on both sides of the main tunnel (1) along its transverse direction, and the side wall ditch (81) is used to collect clean water seeping from the back of the lining of the main tunnel (1); the central ditch (82) is provided between the two side wall ditches (81), and the central ditch (82) is connected to the side wall ditch (81) through a transverse water pipe (83), and the central ditch (82) is connected to the water collection pit (3).

6. A tunnel reverse slope drainage system according to any one of claims 1 to 5, characterized in that, The side of the tunnel inclined shaft (2) is provided with an equipment tunnel (21), which is connected to the tunnel inclined shaft (2), and the pump station (5) is located in the equipment tunnel (21).

7. A tunnel reverse slope drainage system according to any one of claims 1 to 5, characterized in that, The mobile water tank (4) is connected to a lifting lug.

8. A tunnel reverse slope drainage system according to any one of claims 1 to 5, characterized in that, The water pump (7) on the equipment platform (52) includes a centrifugal pump (71) and a vacuum pump (73). The centrifugal pump (71) has an exhaust port on the top of its pump casing (711), and the vacuum pump (731) is connected to the exhaust port.

9. A tunnel reverse slope drainage system according to any one of claims 1 to 5, characterized in that, A gantry crane is also provided above the equipment platform (52), and the working range of the gantry crane covers at least the equipment platform (52).

10. A tunnel reverse slope drainage system according to any one of claims 1 to 5, characterized in that, It also includes a dual-power transmission system, which comprises: Ring main unit (91), wherein the ring main unit (91) includes an input terminal and an output terminal; A first power supply line (9101) is provided, one end of which is electrically connected to the input terminal, and the other end of which is electrically connected to the mains power (92). An output detection module (93) is provided on the first power supply line (9101). The output detection module (93) includes a current sensor and / or a voltage sensor. A second power supply line (9102) is connected at one end to the input terminal and at the other end to a power generation module (94); the power generation module (94) includes at least one generator (941). The control module (95) is communicatively connected to the current sensor and the power generation module (94). The control module (95) can receive the readings from the output detection module (93) and control the start and stop of the power generation module (94) according to the readings. Output line (9103), one end of the output line (9103) is electrically connected to the output terminal, and the other end of the output line (9103) is electrically connected to the water pump (7).

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