Active leakage prevention structure of subway station
By setting up seepage pipes and water storage tanks outside the subway station, and using water pumps to pump water into the sewer pipes, the problem of seasonal leakage in the subway station is solved, and the effect of actively reducing the water content of the soil and discharging gas is achieved, effectively preventing leakage and prevent odor generation.
Patent Information
- Application Number
- CN202421286733.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-06-06
AI Technical Summary
In the season when the rain is frequent, the subway station has high moisture content, which leads to leakage problems at the joints of the main structure. The existing technology is difficult to effectively prevent this seasonal leakage.
Design an active leakage prevention structure, including a number of seepage pipes distributed around the main structure of the subway station. The lower end of the seepage pipe is connected to the water storage tank. The water pump pumps the water in the water storage tank into the city sewer pipe, and outside the seepage pipe Wrap filter cloth around to prevent clogging of soil particles.
By draining the water in the soil layer into the water storage tank and pumping it into the sewer pipe, the water content in the soil layer is actively reduced, effectively preventing leakage problems in subway stations. At the same time, the ventilation effect of the seepage pipe can discharge the gas in the water storage tank and prevent subway trains from running. There is an odor in the station.
Smart Images
Figure CN222375470U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of subway station leakage, in particular to an active leakage prevention structure of a subway station. Background Art
[0002] At present, most of the domestic subway stations are located underground. Although the main structure of the subway station adopts the underground continuous wall construction technology, leakage still occurs at the joints of the main structure. This leakage is seasonal, especially in the northern region.
[0003] The groundwater level in the north is usually over 16 meters, while the depth of most subway stations does not reach the groundwater level. The reasons for seasonal leakage are: in summer, there is a lot of rain and the soil has a high water content, which causes water seepage at the joints; in winter, there is less rain and the soil has a low water content, so there is no water seepage at the joints. Therefore, in the rainy season, the water content of the soil should be actively reduced to prevent leakage problems in subway stations from the source. Utility Model Content
[0004] In order to overcome the shortcomings of the background technology, the utility model discloses an active leakage prevention structure of a subway station, which adopts the following technical solutions:
[0005] An active leakage prevention structure of a subway station is provided. A drainage ditch and a water storage tank are arranged at the bottom of a main structure of the subway station. A plurality of seepage pipes are evenly distributed around the periphery of the main structure of the subway station. A plurality of seepage holes are arranged in an array on the pipe wall of the seepage pipe. The lower end of the seepage pipe is connected to the water storage tank and is used for draining water in a soil layer around the main structure of the subway station into the water storage tank. A water pump is arranged in the water storage tank and is used for pumping water in the water storage tank into a city sewer.
[0006] To further improve the technical solution, a filter cloth or a plastic filter screen is wound around the outside of the seepage pipe.
[0007] To further improve the technical solution, the filter cloth is a geotextile.
[0008] To further improve the technical solution, the upper end of the seepage pipe is higher than the ground, and a protective cover is provided above the seepage pipe.
[0009] To further improve the technical solution, a liquid level sensor is provided in the water storage tank, and the liquid level sensor is used to control the opening of the water pump.
[0010] To further improve the technical solution, the seepage pipe is vertically arranged, and the area of each seepage hole is 30-80 square millimeters.
[0011] After implementing the above technical solution, compared with the background technology, the beneficial effects produced by the utility model are:
[0012] The active leakage prevention structure is provided with a number of seepage pipes on the periphery of the main structure of the subway station, and the lower ends of the seepage pipes are connected with the water storage tank. Firstly, the seepage pipes can discharge the accumulated water in the soil layer outside the main structure of the subway station into the water storage tank, actively reducing the water content of the soil layer, and preventing leakage problems in the subway station from the source; secondly, the seepage pipes have a ventilation function, which can discharge the gas in the water storage tank out of the subway station, and prevent the generation of odor in the subway station. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Attached Figure 1 Shown is an overall schematic diagram of the active leakage prevention structure of this subway station.
[0014] Attached Figure 2 Shown is the distribution diagram of seepage pipes around the main structure of a subway station.
[0015] Attached Figure 3 Shown is a schematic cross-sectional view of a seepage pipe.
[0016] Attached Figure 4 The attached Figure 1 A partial enlarged view of .
[0017] In the attached figure: 1. Main structure of subway station; 2. Drainage ditch; 3. Water storage tank; 4. Seepage pipe; 5. Filter cloth; 6. Water pump; 7. Liquid level sensor; 8. Protective cover; 9. City sewer pipe. DETAILED DESCRIPTION
[0018] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. It should be noted that in the description of the present invention, the terms "front", "rear", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of description, rather than indicating or implying that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. It should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the internal connection of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.
[0019] Attached Figure 1The active leakage prevention structure of a subway station is shown, in which a drainage ditch 2 and a water storage tank 3 are arranged at the bottom of the subway station main structure 1, and a plurality of seepage pipes 4 are evenly distributed around the periphery of the subway station main structure 1. The structure and function thereof are described in detail below.
[0020] Refer to the attached Figure 2 , attached Figure 2 1 is a distribution diagram of the seepage pipes around the main structure of the subway station. In this embodiment, there are 18 seepage pipes 4 in total, which are evenly arranged in the soil layer around the main structure 1 of the subway station.
[0021] Refer to the attached Figure 3 , attached Figure 3 : is a schematic cross-sectional view of a seepage pipe. A plurality of seepage holes are arranged in an array on the pipe wall of the seepage pipe 4, and the function of the seepage holes is to introduce water in the soil layer outside the main structure 1 of the subway station into the seepage pipe 4. In this embodiment, the seepage pipe 4 is made of corrosion-resistant engineering plastic, the diameter of the seepage pipe 4 is 16 cm, and the area of each seepage hole is 30-80 square millimeters.
[0022] In order to prevent the particles in the soil layer from clogging the seepage holes, a filter cloth 5 or a plastic filter screen is wound around the outside of the seepage pipe 4. The function of the filter cloth 5 or the plastic filter screen is to prevent the particles in the soil layer from clogging the seepage holes. In this embodiment, the filter cloth 5 used is a geotextile. The geotextile is woven from polyester fibers and has good strength and corrosion resistance in both dry and wet environments. The characteristics of the geotextile are good water permeability, high temperature resistance, freezing resistance, no insect infestation, long life, and low price.
[0023] Refer to the attached Figure 4 , attached Figure 4 Yes Figure 1 The seepage pipe 4 is vertically arranged, and the lower end of the seepage pipe 4 is connected to the water storage tank 3. The main function of the seepage pipe 4 is to discharge the water in the soil layer outside the main structure 1 of the subway station into the water storage tank 3. After the seepage pipe 4 is arranged, the accumulated water in the soil layer outside the main structure 1 of the subway station can be discharged into the water storage tank 3, actively reducing the water content of the soil layer, and preventing leakage problems in the subway station from the source.
[0024] In this embodiment, the upper end of the seepage pipe 4 is above the ground. In this way, the seepage pipe 4 also has a secondary function, which is to discharge the gas in the water tank 3 out of the subway station. Usually, a cleaning room and a toilet are set in the subway station. Clean water and underground seepage water have basically no odor, and generally enter the water tank 3 through the drain ditch 2. However, toilet sewage has a peculiar smell, and toilet sewage enters the water tank 3 through a closed pipe. Therefore, the peculiar smell in the water tank 3 is still relatively strong. Although the liquid in the existing water tank 3 is discharged into the city sewer pipe 9 through a pump and a pipeline, the peculiar smell cannot be discharged cleanly, and the subway station is a relatively closed space, which is easy to cause a bad taste. After the seepage pipe 4 is set, the seepage pipe 4 has a ventilation effect similar to a chimney, which can discharge the gas in the water tank 3 out of the subway station and prevent the generation of peculiar smell in the subway station.
[0025] For safety and to prevent foreign matter from falling into the water seepage pipe 4 , a protective cover 8 is provided above the water seepage pipe 4 .
[0026] A pump 6 is provided in the water tank 3, and the pump 6 is used to pump the water in the water tank 3 into the city sewer pipe 9. Usually, the depth of the water tank 3 is greater than the depth of the city sewer pipe 9, so the pump 6 is needed to pump the water in the water tank 3 into the city sewer pipe 9.
[0027] In addition, a liquid level sensor 7 is also provided in the water storage tank 3, and the liquid level sensor 7 is used to control the opening of the water pump 6. When the liquid level in the water storage tank 3 is higher than a specified value, the liquid level sensor 7 senses it and turns on the water pump 6 to pump water.
[0028] Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the protection scope of the present invention is defined by the attached claims and their equivalents.
Claims
1. An active leakage prevention structure for a subway station, wherein a drainage ditch and a water storage tank are provided at the bottom of the main structure of the subway station, and wherein: A number of seepage pipes are evenly distributed on the periphery of the main structure of the subway station; a plurality of seepage holes are arranged in an array on the pipe wall of the seepage pipe, and the lower end of the seepage pipe is connected to a water storage tank, which is used to discharge the water in the soil layer outside the main structure of the subway station into the water storage tank; a water pump is arranged in the water storage tank, and the water pump is used to pump the water in the water storage tank into the city sewer.
2. The active leakage prevention structure of a subway station as claimed in claim 1, characterized in that: A filter cloth or a plastic filter is wound around the outside of the seepage pipe.
3. The active leakage prevention structure of a subway station as claimed in claim 2, characterized in that: The filter cloth is a geotextile.
4. The active leakage prevention structure of a subway station as claimed in claim 1, characterized in that: The upper end of the seepage pipe is higher than the ground, and a protective cover is arranged above the seepage pipe.
5. The active leakage prevention structure of a subway station as claimed in claim 1, characterized in that: A liquid level sensor is also provided in the water storage tank, and the liquid level sensor is used to control the opening of the water pump.
6. The active leakage prevention structure of a subway station as claimed in claim 1, characterized in that: The seepage pipe is arranged vertically, and the area of each seepage hole is 30-80 square millimeters.