Pumping drainage method for gushing water of high-speed rail tunnel

Abstract

The invention relates to the field of emergency drainage of high-speed rail tunnels, in particular to a pumping drainage method for gushing water of a high-speed rail tunnel, which comprises the following steps of: reasonably arranging a drainage pump truck, a first drainage pump group and a second drainage pump group, so that the drainage pump truck, the first drainage pump group and the second drainage pump group are used for pumping water in a relay manner; gushing water in the high-speed rail tunnel can be rapidly pumped and drained, and the pumping and draining efficiency of the gushing water in the high-speed rail tunnel is improved; the drainage function of the high-speed rail tunnel pump station in the high-speed rail tunnel can be quickly recovered, and high-speed rail tunnel construction can be quickly recovered; according to the pumping drainage method, the drainage process of gushing water of the high-speed rail tunnel is optimized, and the safety of drainage operation of the high-speed rail tunnel is guaranteed.

Description

Technical Field

[0001] The invention relates to the field of emergency drainage of high-speed railway tunnels, and in particular to a method for pumping and draining water gushing from high-speed railway tunnels. Background Art

[0002] Water gushing is a rare and difficult phenomenon to predict during the construction of high-speed railway tunnels in extremely cold regions. Once it occurs, the drainage system of the high-speed railway tunnel will be paralyzed because the tunnel drainage scheme cannot cope with the short-term large-scale water gushing during the tunnel construction process. In extremely cold regions, water gushing in high-speed railway tunnels is mainly caused by the development of cracks in the surrounding rock and their connection with the outside world. When it rains, it is very easy for linkage to occur, resulting in sudden water gushing in the tunnel and large instantaneous changes in water levels. The pumping capacity of the water pump installed in the high-speed railway tunnel pump station is unable to cope with the instantaneous large-scale pumping. In order to reduce losses, the water pumps of the high-speed railway tunnel pump station can only be dismantled, causing the high-speed railway tunnel to be flooded.

[0003] Currently, when pumping out water gushing from a flooded high-speed railway tunnel, we can only rely on the experience of the operators. During the pumping out process, the water level rises and falls repeatedly, and the pumping and drainage equipment and related pipelines need to be constantly adjusted by the operators, resulting in intermittent pumping and drainage of the high-speed railway tunnel. The pumping out of water gushing from the high-speed railway tunnel takes a long time, the drainage operation efficiency of the high-speed railway tunnel is low, and the high-speed railway tunnel suffers great losses after being flooded. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art in that when pumping out water from a flooded high-speed railway tunnel, it takes a long time to pump out the gushing water and the drainage efficiency of the high-speed railway tunnel is low, and to provide a method for pumping out water from a high-speed railway tunnel.

[0005] The present invention provides a method for pumping out water inrush in a high-speed railway tunnel, comprising the following steps: S1: Check water inflow: determine the water inflow volume in the high-speed railway tunnel; Check the water inflow of the high-speed railway tunnel, select appropriate drainage pump trucks, the first drainage pump group and the second drainage pump group according to the water inflow, calculate the drainage demand of the high-speed railway tunnel pump station after restoration according to the water inflow, select the high-speed railway tunnel pump station water pump with appropriate pumping capacity, so that the drainage pump truck can quickly reduce the water level of the inclined shaft, the first drainage pump group can quickly reduce the water level of the high-speed railway tunnel, and the second drainage pump group can intercept the water on both sides of the foundation pit of the main hole high-speed railway tunnel pump station, so that the high-speed railway tunnel pump station after restoration can pump out the water; S2: Lower the water level in the inclined well: Set up a drainage pump truck to drain the inclined well and lower the water level in the inclined well; The drainage pump truck is easy and quick to set up. However, due to its low lift, it is suitable for pumping out water in the higher elevation range of the inclined shaft. A section is left vacant in the inclined shaft for laying the first drainage pump unit. The drainage pump truck quickly lowers the water level in the inclined shaft to ensure the assembly environment of the first drainage pump unit and ensure construction safety. S3: Lowering the water level of the high-speed railway tunnel: Install the first drainage pump group in the inclined shaft to lower the water level of the high-speed railway tunnel to expose the foundation pit of the high-speed railway tunnel pump station in the main tunnel; The first drainage pump group has a high head. By continuously lowering the water level in the inclined shaft and the high-speed railway tunnel, the water level in the high-speed railway tunnel is lowered to expose the foundation pit of the main tunnel high-speed railway tunnel pump station, providing a good working environment for operators in the high-speed railway tunnel and facilitating the repair and restoration of the high-speed railway tunnel pump station; S4: Intercepting incoming water: Intercept the incoming water on both sides of the foundation pit of the Zhengdong high-speed railway tunnel pump station, and set up a second drainage pump group to pump out the incoming water on both sides of the foundation pit of the Zhengdong high-speed railway tunnel pump station; Intercept the water from both sides of the foundation pit of the Zhengdong high-speed railway tunnel pump station to prevent water from entering the foundation pit of the Zhengdong high-speed railway tunnel pump station, so that operators can quickly repair the high-speed railway tunnel pump station; S5: Restore drainage of high-speed rail tunnel pump station: Repair the high-speed rail tunnel pump station and activate the high-speed rail tunnel pump station to drain the high-speed rail tunnel; After the high-speed rail tunnel pump station is repaired, the water gushing out of the high-speed rail tunnel is discharged through the high-speed rail tunnel pump station.

[0006] The invention discloses a method for pumping out water gushing in a high-speed railway tunnel. First, the accumulated water in the inclined shaft is pumped out by a drainage pump truck, so that the water level in the inclined shaft is lowered to a height suitable for personnel to perform construction work in the inclined shaft. Then, a first drainage pump unit is installed in the inclined shaft to lower the water level in the high-speed railway tunnel to expose the main tunnel high-speed railway tunnel pump station foundation pit. Then, the operating personnel enter the high-speed railway tunnel to intercept the water on both sides of the main tunnel high-speed railway tunnel pump station foundation pit to prevent the water from flooding the main tunnel high-speed railway tunnel pump station foundation pit. Finally, the high-speed railway tunnel pump station is restored to resume drainage. The drainage pump truck quickly lowers the water level in the inclined shaft, which is convenient for operators to install the first drainage pump group to further lower the water level to expose the main tunnel high-speed railway tunnel pump station foundation pit, and use the second drainage pump group to pump out water on both sides of the main tunnel high-speed railway tunnel pump station foundation pit, which is convenient for operators to restore the drainage performance of the high-speed railway tunnel pump station; a method for pumping water gushing in a high-speed railway tunnel of the present invention can quickly reduce the accumulated water in the high-speed railway tunnel and restore the drainage of the high-speed railway tunnel pump station through the cooperation of the first drainage pump group, the second drainage pump group and the drainage pump truck, so that the high-speed railway tunnel can quickly resume construction.

[0007] Preferably, in S2, the drainage pump truck lowers the water level of the inclined well by at least 10 m.

[0008] Provide sufficient space in the inclined shaft for installing and commissioning the first dewatering pump set.

[0009] Preferably, in S3, before the first drainage pump group is activated, the drainage pump truck is continuously operated to drain the inclined well; after the first drainage pump group is activated, the drainage pump truck is dismantled.

[0010] When installing and debugging the first drainage pump group, keep the drainage pump truck running to prevent the water level in the inclined well from rising; after the first drainage pump group is activated, use the first drainage pump group to quickly pump out the accumulated water, shut down the drainage pump truck, dismantle the drainage pump truck and withdraw it from the inclined well; prevent the water level from rising during the replacement of the drainage pump truck and the first drainage pump group.

[0011] Preferably, in S4, when the water gushing point is only on one side of the main tunnel high-speed railway tunnel pump station foundation pit, a dam is built between the main tunnel high-speed railway tunnel pump station foundation pit and the tunnel water gushing point to form a reservoir to intercept the incoming water, and the wellhead of the central inspection well in the reservoir is blocked; the accumulated water in the reservoir is pumped out by the second drainage pump group.

[0012] In the high-speed railway tunnel, a dam is built and the central inspection well between the dam and the water gushing point is blocked to prevent the gushing water from entering the foundation pit of the main tunnel high-speed railway tunnel pump station; in order to prevent the gushing water from overflowing the water storage tank, a second drainage pump group is used to pump out the accumulated water in the water storage tank to prevent the gushing water from affecting the workers working in the high-speed railway tunnel pump station, so that the workers can quickly restore the drainage performance of the high-speed railway tunnel pump station; in some embodiments, after the water storage tank is constructed, the first drainage pump group is moved into the water storage tank, and the first drainage pump group is used as the second drainage pump group to pump out the accumulated water in the water storage tank, thereby reducing the deployment time of the second drainage pump group.

[0013] Preferably, the second drainage pump group includes a first pump group and a second pump group, the first pump group is used to pump out the accumulated water in the water reservoir, and the second pump group is used to pump out the accumulated water on the side of the main hole high-speed railway tunnel pump station foundation pit away from the dam and discharge it into the water reservoir.

[0014] The first pump group and the second pump group respectively pump out the water on both sides of the dam to ensure that workers at the high-speed railway tunnel pump station can carry out construction quickly.

[0015] Preferably, in S5, before the high-speed railway tunnel pump station is put into use, the central water pipe located in the central inspection well of the high-speed railway tunnel pump station away from the water gushing point is blocked, and the wellhead of the central inspection well located in the water reservoir is unblocked; a third drainage pump group is arranged on the side of the main hole high-speed railway tunnel pump station foundation pit away from the water reservoir, and the accumulated water is pumped into the main hole high-speed railway tunnel pump station foundation pit through the third drainage pump group.

[0016] By blocking the central water pipe located in the central inspection well of the high-speed railway tunnel pump station, which is far away from the water gushing point, the high-speed railway tunnel pump station can only extract the water on the side of the water gushing point through the central inspection well, thereby enhancing the high-speed railway tunnel pump station's ability to pump out the gushing water; in order to prevent the water on the side of the main hole high-speed railway tunnel pump station's foundation pit far away from the dam from entering the high-speed railway tunnel pump station and affecting the operation of the high-speed railway tunnel pump station, a third drainage pump group is set to pump the water on the side of the main hole high-speed railway tunnel pump station's foundation pit far away from the dam into the main hole high-speed railway tunnel pump station's foundation pit.

[0017] Preferably, after the high-speed railway tunnel pump station is activated, when the water level in the reservoir drops to a point where the first pump unit can no longer pump water, the first pump unit and the dam are removed.

[0018] The first pump unit and the dam will be removed after the water level in the reservoir drops to prevent water from flooding into the high-speed railway tunnel pump station and affecting its operation; the construction environment of the high-speed railway tunnel can be restored by removing the first pump unit and the dam.

[0019] Preferably, in S5, repairing the high-speed railway tunnel pump station includes repairing the main high-speed railway tunnel pump station, repairing the auxiliary high-speed railway tunnel pump station in the inclined shaft, and repairing the tunnel pumping pipeline.

[0020] The drainage performance of the high-speed railway tunnel can be restored by repairing the main high-speed railway tunnel pump station, the auxiliary high-speed railway tunnel pump station in the inclined shaft and the tunnel pumping pipeline.

[0021] Preferably, the first drainage pump group and the second drainage pump group are respectively connected to a mobile base and placed in an inclined well, and the mobile base is provided with a pulley group, and the pulley group is rotatably connected to the mobile base.

[0022] Due to friction, it is difficult to move the first drainage pump group and the second drainage pump group in the inclined shaft. By moving the base and the pulley group, the first drainage pump group and the second drainage pump group can be quickly moved in the inclined shaft, thereby improving the drainage efficiency.

[0023] Preferably, the water pumped by the first drainage pump group and the second drainage pump group is discharged from the high-speed railway tunnel through a drainage pipe arranged in the inclined shaft, the drainage pipe includes a plurality of pipe sections, the ends of the pipe sections are provided with quick connectors, the quick connectors on adjacent pipe sections can be connected to each other, the first drainage pump group can be connected to the quick connectors, and the second drainage pump group can be connected to the quick connectors.

[0024] By combining multiple pipe sections, the length of the drainage pipe can be controlled. During the drainage process, the length of the drainage pipe can be increased or decreased according to the position of the first drainage pump group or the second drainage pump group, thereby avoiding folding and bending of the drainage pipe, facilitating the adjustment of the position of the first drainage pump group or the second drainage pump group, and accelerating the discharge of gushing water; the quick connector can achieve quick connection between pipe sections; the quick connector can achieve quick connection of the first drainage pump group or the second drainage pump group, thereby increasing the drainage efficiency of the high-speed railway tunnel.

[0025] Compared with the prior art, the present invention has the following beneficial effects: 1. A method for pumping out water gushing from a high-speed railway tunnel of the present invention comprises the following steps: firstly, the accumulated water in the inclined shaft is pumped out by a drainage pump truck, so that the water level in the inclined shaft is lowered to a height suitable for personnel to perform construction work in the inclined shaft; then, a first drainage pump unit is installed in the inclined shaft, so that the water level in the high-speed railway tunnel is lowered to expose the main tunnel high-speed railway tunnel pump station foundation pit; then, the operating personnel enter the high-speed railway tunnel to intercept the water on both sides of the main tunnel high-speed railway tunnel pump station foundation pit to prevent the water from flooding the main tunnel high-speed railway tunnel pump station foundation pit; finally, the high-speed railway tunnel pump station is restored to resume drainage; The water level in the inclined shaft is quickly lowered by using a drainage pump truck, which is convenient for operators to install the first drainage pump group to further lower the water level to expose the main tunnel of the high-speed railway tunnel pump station foundation pit, and the second drainage pump group is used to pump out the water on both sides of the main tunnel of the high-speed railway tunnel pump station foundation pit, which is convenient for operators to restore the drainage performance of the high-speed railway tunnel pump station; a method for pumping out water gushing in a high-speed railway tunnel of the present invention can quickly reduce the accumulated water in the high-speed railway tunnel and restore the drainage of the high-speed railway tunnel pump station through the cooperation of the first drainage pump group, the second drainage pump group and the drainage pump truck, so that the high-speed railway tunnel can quickly resume construction; 2. The present invention provides a method for pumping out water gushing in a high-speed railway tunnel. By reasonably arranging a drainage pump truck, a first drainage pump group and a second drainage pump group, the drainage pump truck, the first drainage pump group and the second drainage pump group relay pumping, so that the water gushing in the high-speed railway tunnel can be quickly pumped out, thereby improving the pumping out efficiency of the water gushing in the high-speed railway tunnel; the high-speed railway tunnel pump station in the high-speed railway tunnel can quickly restore the drainage function, which is convenient for quickly resuming the construction of the high-speed railway tunnel, and has good economic value and practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic flow chart of a method for pumping out water inrush from a high-speed railway tunnel according to the present invention; Figure 2 A schematic diagram of the arrangement of a drainage pump truck for a method of pumping water out of a high-speed railway tunnel according to the present invention; Figure 3 It is a schematic diagram of the arrangement of the first drainage pump group of a method for pumping water out of a high-speed railway tunnel according to the present invention; Figure 4 It is a schematic diagram of the arrangement of the second drainage pump group of a method for pumping water from a high-speed railway tunnel according to the present invention; Figure 5 It is a schematic diagram of the arrangement of the third drainage pump group of a method for pumping water from a high-speed railway tunnel according to the present invention; Figure 6 This is a schematic diagram of the implementation process of a method for pumping water out of a high-speed railway tunnel according to Example 1 of the present invention.

[0027] Markings in the figure: 1-drainage pump truck, 2-large flow and light miniaturized permanent magnet variable frequency submersible electric pump, 3-pump truck control cabinet, 4-pump truck drainage pipe, 5-first drainage pump group, 6-zhengdong high-speed railway tunnel pump station foundation pit, 7-first drainage pump group control cabinet, 8-drainage pipeline, 9-second drainage pump group, 91-first pump group, 92-second pump group, 10-second drainage pump group control cabinet, 11-high-speed railway tunnel pump station, 12-third drainage pump group, 13-dam, 14-reservoir, 100-generator set, 101-grid cabinet, 102-transformer, 103-inclined shaft, 104-high-speed railway tunnel. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with specific embodiments. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0029] Unless otherwise specified, in the description of the specific embodiments of the present invention, the terms indicating the orientation or position relationship such as "up", "down", "left", "right", "center", "inside", "outside", etc. are all expressions based on the orientation or position relationship shown in the drawings, or are the orientation or position relationship when the invented product / equipment / device is usually used. These terms of orientation or position relationship are only for the convenience of describing the scheme of the present invention or simplifying the description in the specific embodiments, so as to facilitate the technicians to quickly understand the scheme, 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 position relationship, and therefore cannot be understood as a limitation on the present invention.

[0030] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simplified to mean that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the scheme of the present invention.

[0031] In addition, the expressions “first”, “second”, “third”, etc., which appear in the terms, are merely used to distinguish the description of the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.

[0032] In addition, in the description of the embodiments of the present invention, "several", "plurality" and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0033] In addition, in the description of the technical solution of the present invention, unless otherwise clearly specified / defined / restricted, the terms "set", "install", "connect", "connected", "provided with", "laid", and "arranged" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be welding, riveting, bolting, threading, and other commonly used connection means in the field. This connection can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal connection of two elements.

[0034] Example 1 like Figure 1 As shown, a method for pumping out water inrush in a high-speed railway tunnel comprises the following steps: S1: Check the water inflow situation: determine the water inflow volume of the high-speed railway tunnel 104; S2: Lowering the water level of the inclined well 103: Setting a drainage pump truck 1 to drain the inclined well 103 and lower the water level in the inclined well 103; S3: lowering the water level of the high-speed railway tunnel 104: installing a first drainage pump group 5 in the inclined shaft 103 to lower the water level of the high-speed railway tunnel 104 to expose the main tunnel high-speed railway tunnel pump station foundation pit 6; S4: intercepting incoming water: intercepting the incoming water on both sides of the foundation pit 6 of the main tunnel high-speed railway tunnel pump station, and setting up a second drainage pump group 9 to pump out the incoming water on both sides of the foundation pit 6 of the main tunnel high-speed railway tunnel pump station; S5: Restore drainage of high-speed rail tunnel pump station 11: Repair high-speed rail tunnel pump station 11 and activate the high-speed rail tunnel pump station to drain high-speed rail tunnel 104.

[0035] First, the accumulated water in the inclined shaft 103 is pumped out by the drainage pump truck 1, so that the water level in the inclined shaft 103 is lowered to a height suitable for personnel to carry out construction work in the inclined shaft 103, and then the first drainage pump group 5 is installed in the inclined shaft 103 to lower the water level in the high-speed railway tunnel 104 to expose the main hole high-speed railway tunnel pump station foundation pit 6, and then the operating personnel enter the high-speed railway tunnel 104 to intercept the water on both sides of the main hole high-speed railway tunnel pump station foundation pit 6 to prevent the water from flooding the main hole high-speed railway tunnel pump station foundation pit 6, and finally restore the high-speed railway tunnel pump station 11 to resume drainage of the high-speed railway tunnel pump station 11; the drainage pump truck 1 is used to quickly lower the water level in the inclined shaft 103, which is conducive to the operating personnel installing the first drainage pump group 5 to further lower the water level to expose the main hole high-speed railway tunnel pump station foundation pit 6 of the high-speed railway tunnel 104, and the second drainage pump group 9 is used to pump out the water on both sides of the main hole high-speed railway tunnel pump station foundation pit 6, so that the operating personnel can restore the drainage performance of the high-speed railway tunnel pump station 11.

[0036] A method for pumping out water gushing from a high-speed railway tunnel of the present invention can quickly reduce the accumulated water in the high-speed railway tunnel 104 and restore the drainage of the high-speed railway tunnel pump station 11 through the cooperation of the first drainage pump group 5, the second drainage pump group 9 and the drainage pump vehicle 1, so that the high-speed railway tunnel 104 can quickly resume construction.

[0037] In one or several embodiments, in S2, the drainage pump truck 1 lowers the water level of the inclined well 103 by 10 m, so that there is enough space in the inclined well 103 for laying out and debugging the first drainage pump group 5. The elevation of about 10 m enables the drainage pump truck 1 to operate efficiently and quickly lower the water level in the inclined well 103.

[0038] In one or several embodiments, in S3, before the first drainage pump group 5 is activated, the drainage pump truck 1 is continuously operated to drain the inclined well 103 to avoid the water level in the inclined well 103 from rising before the first drainage pump group 5 is activated, to ensure the construction safety of the workers and to ensure that the commissioning of the first drainage pump group 5 can be carried out quickly; after the first drainage pump group 5 is activated, the drainage pump truck 1 is shut down and dismantled to avoid the water level in the inclined well 103 from rising after the drainage pump truck 1 is shut down.

[0039] In one or several embodiments, in S4, when the water gushing point is only on one side of the main hole high-speed railway tunnel pump station foundation pit 6, a dam 13 is built in the high-speed railway tunnel 104 to form a water reservoir 14 to intercept the incoming water. The water reservoir 14 is used to store the incoming water. The dam 13 is located between the main hole high-speed railway tunnel pump station foundation pit 6 and the tunnel water gushing point to prevent the incoming water from entering the high-speed railway tunnel pump station 11; the central inspection well between the dam 13 and the water gushing point is blocked to prevent the gushing water from entering the high-speed railway tunnel pump station from the middle inspection well; the second drainage pump group 9 is enabled to continuously pump out the accumulated water in the water reservoir 14 to prevent the accumulated water from overflowing the dam 13.

[0040] In an optional embodiment, the second drainage pump group 9 is composed of a first pump group 91 and a second pump group 92. The first pump group 91 is installed in the water reservoir 14. The first pump group 91 is used to pump out the accumulated water in the water reservoir 14, and the second pump group 92 is used to pump out the accumulated water on the side of the main hole high-speed railway tunnel pump station foundation pit 6 away from the dam 13 and discharge it into the water reservoir 14.

[0041] In an optional implementation, in S5, before the high-speed railway tunnel pump station is put into use, the central water pipe located in the central inspection well of the high-speed railway tunnel pump station away from the water gushing point is blocked, and the central inspection well opening between the dam 13 and the water gushing point is dredged, so that the accumulated water on the side of the water gushing point can quickly enter the high-speed railway tunnel pump station 11 and be pumped out by the high-speed railway tunnel pump station 11, and the central water pipe away from the side of the water gushing point is blocked to reduce the partial pressure of the non-water gushing point side on the high-speed railway tunnel pump station 11, so that the high-speed railway tunnel pump station 11 has better pumping and drainage ability for the gushing water on the side of the water gushing point. force; a third drainage pump group 12 is arranged on the side of the zhengdong high-speed railway tunnel pump station foundation pit 6 far away from the dam 13. The third drainage pump group 12 is used to pump out the accumulated water into the zhengdong high-speed railway tunnel pump station foundation pit 6. Since the central water pipe on the side far away from the water gushing point is blocked, the third drainage pump group 12 is used to pump out the accumulated water on the side of the zhengdong high-speed railway tunnel pump station foundation pit 6 far away from the dam 13 into the high-speed railway tunnel pump station 11, thereby avoiding water accumulation on the side of the zhengdong high-speed railway tunnel pump station foundation pit 6 far away from the dam 13 and ensuring the pumping performance of the high-speed railway tunnel pump station 11 for the gushing water.

[0042] In an optional embodiment, after the high-speed rail tunnel pump station is activated, the water in the water reservoir 14 is pumped out by the first pump group 91 and the high-speed rail tunnel pump station 11 at the same time. As the water level in the water reservoir 14 decreases, when the first pump group 91 is unable to pump water, the first pump group 91 and the dam 13 are removed, and the high-speed rail tunnel 104 is drained by the high-speed rail tunnel pump station 11.

[0043] In one or several embodiments, in S5, repairing the high-speed railway tunnel pump station 11 includes repairing the main high-speed railway tunnel pump station, repairing the auxiliary high-speed railway tunnel pump station in the intersection inclined shaft 103, and repairing the tunnel pumping pipeline; repairing the main high-speed railway tunnel pump station in the high-speed railway tunnel 104, the auxiliary high-speed railway tunnel pump station in the intersection inclined shaft, and the tunnel pumping pipeline, so that the tunnel drainage system can restore its drainage function, and the high-speed railway tunnel pump station sets a pump according to the amount of water gushing, so that the high-speed railway tunnel pump station can cope with the water gushing and pumping to avoid the tunnel being flooded by the gushing water.

[0044] In one or several embodiments, the first drainage pump group 5 and the second drainage pump group 9 are respectively connected to a mobile base and placed in the inclined shaft 103. The mobile base is provided with a pulley group, which is rotatably connected to the mobile base. The pulley group is easy to carry, so that the first drainage pump group 5 and the second drainage pump group 9 are conveniently lowered from the inclined shaft 103, thereby saving the setting time of the first drainage pump group 5 and the second drainage pump group 9 and realizing rapid drainage of the high-speed railway tunnel 104.

[0045] In one or several embodiments, the water pumped by the first drainage pump group 5 and the second drainage pump group 9 is discharged from the high-speed railway tunnel 104 through the drainage pipe 8 arranged in the inclined shaft 103. The drainage pipe 8 includes a plurality of pipe sections. Quick connectors are provided at the ends of the pipe sections. The quick connectors on adjacent pipe sections can be connected to each other. The first drainage pump group 5 can be connected to the quick connector, and the second drainage pump group 9 can be connected to the quick connector. By combining a plurality of pipe sections, the length of the drainage pipe 8 can be controlled. During the drainage process, the length of the drainage pipe 8 can be adjusted according to the position of the first drainage pump group 5 or the second drainage pump group 9 to avoid folding and bending of the drainage pipe 8 and accelerate the discharge of gushing water. The quick connector can realize quick connection between pipe sections. The quick connector can realize quick connection of the first drainage pump group 5 and the second drainage pump group 9.

[0046] like Figure 2-Figure 6 As shown, the specific implementation method is as follows: 1. Construction preparation Before the formal construction, the water inflow of the high-speed railway tunnel 104 is measured, and the type of tooling equipment and the amount of water pumping are designed according to the water inflow; the required water pumping capacity and lift are calculated, as well as the specifications and quantity of the transformer 102, the specifications and length of the cables, the distribution cabinet, the control cabinet, and the step-up and step-down cabinets; the diameter and length of the drainage pipe 8 and other required equipment and materials are calculated, and the mobile base is processed; the site is planned and arranged, the installation positions of the transformer 102 and the generator are determined, the installation positions of the first drainage pump group 5, the second drainage pump group 9, the third drainage pump group 12 and the drainage pump vehicle 1 are determined, and the placement positions of the drainage pipe 8, cables and control cabinets are determined; the debris and garbage on site are cleaned up accordingly, and electrical equipment such as the transformer 102 and the control cabinet are placed at a height higher than the original ground. The placement position of the transformer 102 and the control cabinet should avoid obstructing the construction movement of large equipment.

[0047] The power supply includes a generator set 100 , a transformer 102 and a grid cabinet 101 .

[0048] 2. Drainage pump truck 1 is in place and connected to the power supply The drainage pump truck 1 is a large-flow drainage rescue truck, which is equipped with a matching pump truck control cabinet 3, quick-connect cable, quick-connect hose and six large-flow light-small permanent magnet variable frequency submersible electric pumps 2; the large-flow light-small permanent magnet variable frequency submersible electric pumps 2 can be used in models including QQ400-30, QQ600-30 and QQ1000-30, and different models can be used in combination according to specific pumping and drainage volume requirements, so that the drainage pump truck 1 can adapt to different terrains; the quick-connect cable and quick-connect hose can achieve fast connection, speed up the commissioning of the drainage pump truck 1, and enable continuous pumping construction; the large-flow light-small permanent magnet variable frequency submersible electric pump 2 has the characteristics of low head, large flow and light weight, and has the characteristics of single-person movement and arbitrary adjustment of pumping and drainage power, which is convenient for layout and control of pumping volume; drive the drainage pump truck 1 to the entrance of the inclined shaft 103 and park it, use a cable to connect the rescue vehicle and the transformer 102 and then drive Start to supply power; after power is turned on, debug various equipment of the drainage pump truck 1 to ensure that they are in normal working condition; remove the large-flow, light-small, permanent-magnetic variable-frequency submersible electric pump 2 from the rescue vehicle and place it at the entrance of the inclined shaft 103, connect the corresponding diameter quick-connect hose to the water outlet of the water pump, each quick-connect hose is 20 meters long, and when the quick-connect hose is installed, the adjacent quick-connect hoses can be aligned and connected and quickly locked to form a pump truck drainage pipe 4, one end of the pump truck drainage pipe 4 is placed at the centralized drainage outlet of the high-speed railway tunnel 104 to avoid the impact of the discharged water flow on the rock mass or the building, so that the accumulated water pumped out by the drainage pump truck 1 is discharged after sedimentation; during the construction process, hang the cable on the wall of the inclined shaft 103 to ensure that there are no safety hazards; the cable connects the large-flow, light-small, permanent-magnetic variable-frequency submersible electric pump 2 and the corresponding electric control cabinet, and starts the large-flow, light-small, permanent-magnetic variable-frequency submersible electric pump 2 one by one for testing to ensure normal operation.

[0049] Place a large-flow, light-minimized permanent-magnetic variable-frequency submersible electric pump 2 into the accumulated water of the inclined well 103 to pump out the accumulated water. As the water level drops, the large-flow, light-minimized permanent-magnetic variable-frequency submersible electric pump 2 is moved manually at any time to ensure that the large-flow, light-minimized permanent-magnetic variable-frequency submersible electric pump 2 does not appear above the water surface. When placing the large-flow, light-minimized permanent-magnetic variable-frequency submersible electric pump 2 into the water, the pump power and placement position should be fully considered. Different large-flow, light-minimized permanent-magnetic variable-frequency submersible electric pumps 2 are arranged in an alternating manner. As the water level drops to the limit of the depth of the large-flow, light-minimized permanent-magnetic variable-frequency submersible electric pump 2, stop responding to the operation of the pump and move it to a new position. Install a water hose to extend the water pump, increase the length of the water lifting pipe, and then start the large-flow, light-minimized permanent-magnetic variable-frequency submersible electric pump 2 to pump water. Through the above cycle operation, ensure that the water level drops steadily to prevent the water level from rising again.

[0050] 3. Install the first drainage pump set 5 and accessories to pump water After the drainage pump truck 1 has been pumping water for a certain period of time, as the water level drops, the pumping capacity decreases accordingly; before the pumping of the drainage pump truck 1 and the water inflow of the high-speed railway tunnel 104 reach a balance, prepare a plurality of high-lift water pumps in advance as the first drainage pump group 5 to enter the inclined shaft 103 to pump water; assemble the high-lift water pump with the mobile base and the pulley, and fasten and bind the high-lift water pump to the mobile base.

[0051] Use equipment to move the assembled high-lift water pump and mobile base to the water surface of the tunnel, install a water-lifting pipe of corresponding diameter as the drainage pipe 8 and a joint to connect to the water outlet of the high-lift water pump. The water-lifting pipe is composed of several pipe sections, each of which is 20m long. A quick connector is set at the end of the water-lifting pipe. The other end of the water-lifting pipe is placed at the originally set centralized drainage outlet of the tunnel. Test the first drainage pump to ensure normal operation; start the water pump to start pumping and drainage; the first drainage pump group 5 is controlled by the first drainage pump group control cabinet 7, and the first drainage pump group control cabinet 7 is installed in the inclined shaft 103.

[0052] After the high-lift water pump starts pumping construction, observe the water level changes. When the gushing and drainage reach a balance or the water level slowly drops, shut down and remove the large-flow, lightweight, permanent-magnet, variable-frequency, submersible electric pump 2 and its pipelines and cables one by one. According to the actual gushing situation, shut down and remove a set of large-flow, lightweight, permanent-magnet, variable-frequency, submersible electric pump 2, and put a set of high-lift water pumps into use to start pumping and drainage.

[0053] After the required high-lift water pump is put into use, the pumping position of the high-lift water pump shall be adjusted in time according to the actual water level drop; when moving the high-lift water pump, the power supply of the water pump shall be turned off first, and the high-lift water pump shall be pushed to the designated position by an excavator, and the pumping pipes and cables shall be assembled manually; after the installation is completed, the high-lift water pump shall be started for pumping until the water level drops to the location of the foundation pit 6 of the main tunnel high-speed railway tunnel pump station.

[0054] Due to the large size of the high-lift water pump, it is necessary to completely enter the water when pumping water and maintain a maximum distance of 1 meter from the water surface. In addition, the pump body is heavy and it is difficult to adjust its position at any time according to the water level. For this reason, a mobile base is made; the high-lift water pump is fixed on the mobile base, and a pulley block is installed under the mobile base. At the entrance of the inclined shaft 103 of the excavator parking station, an iron hook is welded on the back of the shovel and connected to the winch. One end of the winch is connected to a steel cable, and the other end of the steel cable is connected to the mobile base. When the high-lift water pump is started for pumping and drainage, it moves as the water surface position drops and the winch is turned on. The mobile base slides forward automatically due to the forward tilt of the center of gravity, reducing the workload of personnel adjusting the length of the water pumping pipe and ensuring the continuity of pumping and drainage. The cooperation of the excavator, the winch and the steel cable can effectively control the forward speed of the mobile base of the high-lift water pump to prevent the high-lift water pump from moving too fast and causing the water pumping pipe and cable to break.

[0055] 4. Build the dam 13 and drain water by the second drainage pump group 9 Because the slope in the main tunnel of the high-speed railway tunnel 104 is relatively gentle, the high-lift water pump needs to immerse the pump head in water for drainage. In order to avoid the water level moving too fast and causing the high-lift water pump to start and stop frequently, a dam 13 is built in the high-speed railway tunnel 104 to form a reservoir 14 for storing water, intercepting the water flow into the high-speed railway tunnel pump station 11; the dam 13 uses woven bags filled with river sand and stacked in a row, and the water-facing surface is waterproofed with waterproof boards to form a dam 13; an air bag is used to block the central inspection well on the water-facing surface to prevent the gushing water from flowing into the high-speed railway tunnel pump station from the central ditch; the second drainage pump group 9 is controlled by the second drainage pump group control cabinet 10.

[0056] According to the actual water inflow on site and the pumping capacity of the water pump, the number of high-lift water pumps required is determined, and the corresponding number of high-lift water pumps are placed in the first pump group 91 in the dam 13 as the second drainage pump group 9. The high-lift water pump is leaning against the sandbag of the dam 13 with the pump head at the bottom and the drainage end connected to the pumping pipe. The pumping capacity of the high-lift water pump must meet the requirement that the water cannot reach the high-speed railway tunnel pump station. When it cannot be met, high-lift water pumps must continue to be put into the water reservoir 14 until the pumping capacity of the first pump group 91 meets the requirements; the second pump group 92 is a low-lift water pump, and the second pump group 92 pumps the accumulated water on the side of the high-speed railway tunnel pump station foundation pit away from the dam 13 into the water reservoir 14.

[0057] 5. Restore high-speed rail tunnel pump station 11 As the pumping and drainage volume of the high-speed tunnel pump station 11 has increased, the size of the central inspection well cannot meet the installation requirements of the high-speed tunnel pump station pump, so the invert is excavated and filled with concrete; when excavating, considering the subsequent construction, only half of the invert on one side of the high-speed tunnel pump station is excavated and filled with concrete; the debris at the installation location of the high-speed tunnel pump station control cabinet and the high-speed tunnel pump station pump is cleaned up. The base of the high-speed tunnel pump station control cabinet and the high-speed tunnel pump station pump are welded with I-beams and steel plate steel bars. The size must meet the requirements for the placement of the control cabinet and the motor, and it is more than 30cm above the ground. The welded base is installed. The high-speed tunnel pump station control cabinet and the high-speed tunnel pump station pump are installed, and the transformer 102, the high-speed tunnel pump station control cabinet and the high-speed tunnel pump station pump are connected by cables; the high-speed tunnel pump station pump is connected to the tunnel pumping pipeline.

[0058] 6. Pumping of water from high-speed railway tunnel pump station and removal of dam 13 and second drainage pump unit 9 An air bag is used to seal the central inspection well at the water storage pit of the high-speed railway tunnel pump station, and the air bag in the central inspection well upstream of the dam 13 is removed, so that the upstream water flows into the water storage pit of the high-speed railway tunnel pump station through the central ditch; the first pump group 91 in the dam 13 continues to pump and discharge to lower the water level in the dam 13, and the first pump group 91 is stopped after it can no longer pump and discharge, and the dam 13, the first pump group 91 and the second pump group 92 are removed; as the water level in the water storage pit of the high-speed railway tunnel pump station rises and meets the pumping needs of the water pumps of the high-speed railway tunnel pump station, the water pumps of the high-speed railway tunnel pump station are started one by one to perform reverse slope pumping; at the same time, a low-lift and high-flow water pump is used as the third drainage pump group 12 to pump water from the heading area into the water storage pit of the high-speed railway tunnel pump station; the third drainage pump group 12 is controlled by the high-speed railway tunnel pump station 11.

[0059] 7. Remove the auxiliary equipment The water in high-speed railway tunnel 104 has been pumped out, the water pipes and related power supply equipment have been removed, the silt and debris in high-speed railway tunnel 104 have been cleaned up, and the emergency rescue and pumping operations for the water in high-speed railway tunnel 104 have been completed.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for pumping out water in a high-speed railway tunnel, characterized in that: The following steps are involved: S1: Check water inflow: determine the water inflow volume in the high-speed railway tunnel; S2: Lower the water level in the inclined well: Set up a drainage pump truck to drain the inclined well and lower the water level in the inclined well; S3: Lowering the water level of the high-speed railway tunnel: Install the first drainage pump group in the inclined shaft to lower the water level of the high-speed railway tunnel to expose the foundation pit of the high-speed railway tunnel pump station in the main tunnel; S4: Intercepting incoming water: Intercept the incoming water on both sides of the foundation pit of the Zhengdong high-speed railway tunnel pump station, and set up a second drainage pump group to pump out the incoming water on both sides of the foundation pit of the Zhengdong high-speed railway tunnel pump station; S5: Restore drainage of high-speed rail tunnel pump station: Repair the high-speed rail tunnel pump station and activate the high-speed rail tunnel pump station to drain the high-speed rail tunnel.

2. A method for pumping out water inrush from a high-speed railway tunnel according to claim 1, characterized in that: In S2, the drainage pump truck lowers the water level of the inclined well by at least 10m.

3. A method for pumping out water inrush from a high-speed railway tunnel according to claim 1, characterized in that: In S3, before the first drainage pump group is activated, the drainage pump truck is continuously operated to drain the inclined well; after the first drainage pump group is activated, the drainage pump truck is dismantled.

4. A method for pumping out water inrush from a high-speed railway tunnel according to claim 1, characterized in that: In S4, when the water gushing point is only on one side of the main tunnel high-speed railway tunnel pump station foundation pit, a dam is built between the main tunnel high-speed railway tunnel pump station foundation pit and the tunnel water gushing point to form a reservoir to intercept the incoming water, and the wellhead of the central inspection well in the reservoir is blocked; the accumulated water in the reservoir is pumped out by the second drainage pump group.

5. A method for pumping out water inrush from a high-speed railway tunnel according to claim 4, characterized in that: The second drainage pump group includes a first pump group and a second pump group. The first pump group is used to pump out the accumulated water in the water reservoir, and the second pump group is used to pump out the accumulated water on the side of the main hole high-speed railway tunnel pump station foundation pit away from the dam and discharge it into the water reservoir.

6. A method for pumping out water inrush from a high-speed railway tunnel according to claim 5, characterized in that: In S5, before the high-speed railway tunnel pump station is put into use, the central water pipe located in the central inspection well of the high-speed railway tunnel pump station away from the water gushing point is blocked, and the wellhead of the central inspection well located in the water reservoir is unblocked; a third drainage pump group is set on the side of the main hole high-speed railway tunnel pump station foundation pit away from the water reservoir, and the accumulated water is pumped into the main hole high-speed railway tunnel pump station foundation pit through the third drainage pump group.

7. A method for pumping out water inrush from a high-speed railway tunnel according to claim 6, characterized in that: After the high-speed rail tunnel pump station is put into use, when the water level in the reservoir drops to a point where the first pump unit can no longer pump water, the first pump unit and the dam will be dismantled.

8. A method for pumping out water inrush from a high-speed railway tunnel according to claim 1, characterized in that: In S5, repairing the high-speed railway tunnel pump station includes repairing the main high-speed railway tunnel pump station, repairing the auxiliary high-speed railway tunnel pump station in the intersection inclined shaft, and repairing the tunnel pumping pipeline.

9. A method for pumping out water inrush from a high-speed railway tunnel according to claim 1, characterized in that: The first drainage pump group and the second drainage pump group are respectively connected to a mobile base and placed in an inclined well. The mobile base is provided with a pulley group, and the pulley group is rotatably connected to the mobile base.

10. A method for pumping out water inrush from a high-speed railway tunnel according to any one of claims 1 to 9, characterized in that: The water pumped by the first drainage pump group and the second drainage pump group is discharged from the high-speed railway tunnel through a drainage pipe arranged in the inclined shaft. The drainage pipe includes a plurality of pipe sections. Quick connectors are provided at the ends of the pipe sections. The quick connectors on adjacent pipe sections can be connected to each other. The first drainage pump group can be connected to the quick connectors, and the second drainage pump group can be connected to the quick connectors.

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