Underground water diversion structure of underground diaphragm wall

Abstract

The utility model relates to the technical field of underground water diversion, in particular to an underground diaphragm wall underground water diversion structure which comprises a foundation and a diaphragm wall body arranged in the foundation. Water collecting and flow guiding pipes are arranged on the two sides of the continuous wall body, a plurality of water collecting holes are formed in the surfaces of the water collecting and flow guiding pipes, and pressure-resistant water filtering components are arranged outside the water collecting and flow guiding pipes. The lower ends of the water collecting and guiding pipes communicate with guiding channel pipes, and the lower ends of the guiding channel pipes communicate with a plurality of water outlet pipes. According to the utility model, the steel wire mesh sleeve is arranged outside the water collecting and flow guiding pipe, the steel wire mesh sleeve not only is favorable for strengthening the firmness of the inner filtering sleeve outside the water collecting and flow guiding pipe, but also is better in strength, so that the water collecting and flow guiding pipe can be protected against pressure, and the situation that the water collecting and flow guiding pipe is broken due to insufficient strength is effectively avoided; and the service life of the water collection flow guide pipe is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of groundwater diversion, in particular to an underground continuous wall groundwater diversion structure. Background Art

[0002] In today's municipal engineering, more and more underground structures are being constructed. With the increase in underground structures, the number of structures with greater depths has also increased a lot. During the construction of these ultra-deep underground structures, some require deeper support structures, especially underground continuous walls, which are often constructed at a deeper depth. After construction, the underground continuous walls are often not demolished. This support structure has a great impact on groundwater, often cutting off part of the groundwater and affecting the flow of groundwater. Therefore, underground diversion construction measures are often taken to address this situation.

[0003] An underground continuous wall underground water diversion structure and construction method disclosed in Chinese patent application No. 202311588141.5 includes an underground continuous wall, variable diameter filter material water collection areas for variable diameter diversion are arranged on both sides of the underground continuous wall, a diversion reserved opening is arranged at the bottom of the underground continuous wall, underground continuous wall steel bars are installed at the diversion reserved opening, the diversion reserved opening corresponds to the diversion channel pipe, and before the pipeline is installed, a water-blocking rubber gasket is placed in the diversion reserved opening, and the water-blocking rubber gasket is inserted into the water-blocking plug of the water collection and diversion pipe. The invention reserves holes in the continuous wall, and no more holes need to be drilled after the construction is completed. The variable diameter water collection area and the water collection and diversion pipe are arranged on the outside to ensure the diversion efficiency, and the filtration structure ensures the smoothness of water flow.

[0004] By looking at the existing patents that have been published, it can be known that although the diversion method can be used to divert groundwater, when diverting groundwater through a water collecting and diversion pipe, there are many openings on the surface of the water collecting and diversion pipe, but there is a lack of measures to protect the water collecting and diversion pipe. If the strength of the water collecting and diversion pipe is insufficient, it is easy to cause the water collecting and diversion pipe to rupture after long-term use, seriously affecting the service life of the water collecting and diversion pipe. After the groundwater is diverted, the diverted groundwater is directly discharged into the ground, but there is a lack of measures to assist water seepage during groundwater discharge. This may easily cause groundwater to accumulate in the water collecting and diversion pipe and the diversion channel pipe, which may cause the groundwater diversion to be not smooth. Utility Model Content

[0005] The utility model provides an underground continuous wall groundwater diversion structure, which is beneficial to effectively guaranteeing the service life of a water collecting and diversion pipe and is beneficial to better guaranteeing the smoothness of groundwater diversion.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] An underground continuous wall groundwater diversion structure comprises a foundation and a continuous wall, wherein the continuous wall is arranged in the foundation;

[0008] Water collecting and guiding pipes are arranged on both sides of the continuous wall, a plurality of water collecting holes are opened on the surface of the water collecting and guiding pipes, and pressure-resistant water filtering components are arranged outside the water collecting and guiding pipes;

[0009] The lower ends of the water collecting and diversion pipes are connected to diversion channel pipes, and the lower ends of the diversion channel pipes are connected to a plurality of water outlet pipes. A sand and gravel filling layer, an upper water filter cloth, a steel mesh, a lower water filter cloth and a seepage gravel layer are arranged below the diversion channel pipes.

[0010] Furthermore, the pressure-resistant water filtering components are composed of an inner filter sleeve, a wire mesh sleeve and a gauze sleeve, and the inner filter sleeve is wrapped around the outside of the water collecting and guiding pipe.

[0011] Furthermore, the steel mesh sleeve is wrapped around the inner filter sleeve, and the gauze sleeve is wrapped around the steel mesh sleeve.

[0012] Furthermore, an interconnecting pipe is provided between the two guide channel pipes.

[0013] Furthermore, the water-permeable gravel layer is laid in the foundation, the lower water filter cloth is laid on the water-permeable gravel layer, and the steel mesh is laid on the lower water filter cloth.

[0014] Furthermore, the upper water filter cloth is laid between the steel mesh and the water outlet pipe, and the sand and gravel filling layer is filled between the upper water filter cloth and the diversion channel pipe.

[0015] Beneficial effects of the utility model:

[0016] 1. By arranging an inner filter sleeve and a gauze sleeve outside the water collecting and diversion pipe, it is beneficial to double filter the groundwater entering the water collecting and diversion pipe, thereby effectively preventing impurities from entering the water collecting and diversion pipe, avoiding blockage caused by impurities in the water collecting and diversion pipe, and ensuring the smoothness of the water collecting and diversion pipe in diverting groundwater;

[0017] 2. By arranging a steel wire mesh sleeve outside the water collecting and guiding pipe, the steel wire mesh sleeve is not only conducive to reinforcing the firmness of the inner filter sleeve outside the water collecting and guiding pipe, but also the steel wire mesh sleeve has good strength, thereby facilitating the pressure protection of the water collecting and guiding pipe, effectively avoiding the water collecting and guiding pipe from being broken due to insufficient strength, and ensuring the service life of the water collecting and guiding pipe;

[0018] 3. By setting up a sand and gravel filling layer, an upper water filter cloth, a steel mesh, a lower water filter cloth and a seepage gravel layer, auxiliary seepage is performed for the discharge of groundwater to avoid the accumulation of groundwater in the diversion channel pipe and the water collection and diversion pipe. This is conducive to discharging the diverted groundwater into the ground in time, and better ensuring the smoothness of groundwater diversion. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 A is a schematic diagram of the enlarged structure of the local area of ​​the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the water collecting and guiding pipe of the utility model;

[0022] Figure 4 It is a schematic diagram of the enlarged structure of the B part of the utility model.

[0023] Description of reference numerals:

[0024] Foundation 1, continuous wall 2, diversion channel pipe 3, water collecting diversion pipe 4, seepage gravel layer 5, inner filter sleeve 6, wire mesh sleeve 7, gauze sleeve 8, water collecting hole 9, sand and gravel filling layer 10, water outlet pipe 11, steel mesh 12, upper water filter cloth 13, lower water filter cloth 14, interconnecting pipe 15. DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings. The contents mentioned in the implementation modes are not intended to limit the present invention.

[0026] like Figure 1 , 3 As shown in , 4, in this embodiment, it includes a foundation 1 and a continuous wall 2, the continuous wall 2 is arranged in the foundation 1, and water collecting and guiding pipes 4 are arranged on both sides of the continuous wall 2. The surface of the water collecting and guiding pipes 4 is opened with a plurality of water collecting holes 9, and the outside of the water collecting and guiding pipes 4 is provided with a pressure-resistant water filtering component, and the pressure-resistant water filtering component is composed of an inner filter sleeve 6, a wire mesh sleeve 7 and a gauze sleeve 8. The inner filter sleeve 6 is wrapped around the outside of the water collecting and guiding pipe 4, the wire mesh sleeve 7 is wrapped around the outside of the inner filter sleeve 6, and the gauze sleeve 8 is wrapped around the outside of the wire mesh sleeve 7.

[0027] When the groundwater is diverted through the water collecting and diversion pipe 4, before the groundwater enters the water collecting and diversion pipe 4 through the water collecting hole 9, the gauze sleeve 8 first performs a preliminary filter on the groundwater to prevent impurities from clogging the mesh holes of the wire mesh sleeve 7, so that the filtered groundwater can smoothly pass through the mesh holes of the wire mesh sleeve 7 and contact the inner filter sleeve 6, and then the inner filter sleeve 6 will filter the groundwater again, and the groundwater after re-filtration enters the water collecting and diversion pipe 4 through the water collecting hole 9, thereby achieving the effect of preliminary diversion of the groundwater.

[0028] like Figure 4 As shown, in this embodiment, the inner filter sleeve 6 is wrapped around the outside of the water collecting and guiding pipe 4 , the wire mesh sleeve 7 is wrapped around the outside of the inner filter sleeve 6 , and the gauze sleeve 8 is wrapped around the outside of the wire mesh sleeve 7 .

[0029] Since the inner filter sleeve 6 and the gauze sleeve 8 are arranged outside the water collecting and diversion pipe 4, it is beneficial to double filter the groundwater entering the water collecting and diversion pipe 4, thereby effectively preventing impurities from entering the water collecting and diversion pipe 4, avoiding blockage caused by impurities in the water collecting and diversion pipe 4, and ensuring the smoothness of the water collecting and diversion pipe 4 to divert the groundwater, and a wire mesh sleeve 7 is arranged outside the water collecting and diversion pipe 4. The wire mesh sleeve 7 not only helps to strengthen the firmness of the inner filter sleeve 6 outside the water collecting and diversion pipe 4, but also the wire mesh sleeve 7 has good strength, thereby facilitating the pressure protection of the water collecting and diversion pipe 4, effectively avoiding the water collecting and diversion pipe 4 from rupture due to insufficient strength, and ensuring the service life of the water collecting and diversion pipe 4.

[0030] like Figure 1 , 2 As shown, in this embodiment, the lower ends of the water collecting and diversion pipes 4 are connected to the diversion channel pipes 3, and the lower ends of the diversion channel pipes 3 are connected to a plurality of outlet pipes 11. A sand and gravel filling layer 10, an upper water filter cloth 13, a steel mesh 12, a lower water filter cloth 14 and a water seepage gravel layer 5 are provided below the diversion channel pipes 3. The water seepage gravel layer 5 is laid in the foundation 1, the lower water filter cloth 14 is laid on the water seepage gravel layer 5, the steel mesh 12 is laid on the lower water filter cloth 14, the upper water filter cloth 13 is laid between the steel mesh 12 and the outlet pipe 11, and the sand and gravel filling layer 10 is filled between the upper water filter cloth 13 and the diversion channel pipe 3.

[0031] When groundwater is guided into the diversion channel pipe 3 through the water collecting and diversion pipe 4, the diversion channel pipe 3 discharges the groundwater through the outlet pipe 11. In this process, a small part of the groundwater discharged from the outlet pipe 11 penetrates into the sand and gravel filling layer 10 through the upper water filter cloth 13 and is discharged, while most of the groundwater will contact the lower water filter cloth 14 through the steel mesh 12, and then be filtered into the seepage gravel layer 5 by the lower water filter cloth 14. Since the seepage gravel layer 5 has certain gaps, the gaps in the seepage gravel layer 5 are used to assist in diversion and seepage, which is beneficial to assist in the seepage of groundwater, and avoids the situation where groundwater accumulates in the diversion channel pipe 3 and the water collecting and diversion pipe 4. Therefore, it is beneficial to discharge the diverted groundwater into the ground in time, and the upper water filter cloth 13 and the lower water filter cloth 14 are set to filter the groundwater, so as to avoid the unfiltered groundwater in the ground from flowing back into the diversion channel pipe 3 through the outlet pipe 11. In summary, the smoothness of groundwater diversion is better guaranteed.

[0032] like Figure 1 As shown, in this embodiment, two of the guide channel tubes 3 are connected by an interconnecting tube 15 .

[0033] When the groundwater diversion amount in one of the diversion channel tubes 3 is large and the groundwater diversion amount in the other diversion channel tube 3 is small, since the interconnecting pipe 15 is connected between the two diversion channel tubes 3, the large amount of groundwater in one of the diversion channel tubes 3 will enter the other diversion channel tube 3 through the interconnecting pipe 15, and then be assisted in diversion through the other diversion channel tube 3, thereby effectively ensuring the diversion efficiency of the groundwater.

[0034] All technical features in this embodiment can be freely combined according to actual needs.

[0035] The above embodiments are preferred implementation schemes of the present invention. In addition, other implementation schemes are also included. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. An underground continuous wall groundwater diversion structure, comprising a foundation (1) and a continuous wall (2), wherein the continuous wall (2) is arranged in the foundation (1), and is characterized in that: Water collecting and guiding pipes (4) are provided on both sides of the continuous wall (2), a plurality of water collecting holes (9) are opened on the surface of the water collecting and guiding pipes (4), and pressure-resistant water filtering components are provided outside the water collecting and guiding pipes (4); The lower ends of the water collecting and guiding pipes (4) are connected to the guiding channel pipes (3), the lower ends of the guiding channel pipes (3) are connected to a plurality of water outlet pipes (11), and a sand and gravel filling layer (10), an upper water filter cloth (13), a steel mesh (12), a lower water filter cloth (14) and a water-permeable gravel layer (5) are provided below the guiding channel pipes (3).

2. The underground continuous wall groundwater diversion structure according to claim 1, characterized in that: The pressure-resistant water filtering components are composed of an inner filter sleeve (6), a steel mesh sleeve (7) and a gauze sleeve (8), and the inner filter sleeve (6) is wrapped around the outside of the water collecting and guiding pipe (4).

3. The underground continuous wall groundwater diversion structure according to claim 2, characterized in that: The steel wire mesh sleeve (7) is wrapped around the inner filter sleeve (6), and the gauze sleeve (8) is wrapped around the steel wire mesh sleeve (7).

4. The underground continuous wall groundwater diversion structure according to claim 1, characterized in that: An interconnecting pipe (15) is provided between the two guide channel pipes (3).

5. The underground continuous wall groundwater diversion structure according to claim 1, characterized in that: The water-permeable gravel layer (5) is laid in the foundation (1), the lower water filter cloth (14) is laid on the water-permeable gravel layer (5), and the steel mesh (12) is laid on the lower water filter cloth (14).

6. The underground continuous wall groundwater diversion structure according to claim 5, characterized in that: The upper water filter cloth (13) is laid between the steel mesh (12) and the water outlet pipe (11), and the sand and gravel filling layer (10) is filled between the upper water filter cloth (13) and the diversion channel pipe (3).

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