Water retaining wall with backwash drainage system

By introducing a backwashing drainage system into the hydraulic retaining wall, high-pressure water flow is used to remove blockages, solving the problem of easy clogging of the drainage system and ensuring the stability and safety of the retaining wall.

CN224678739UActive Publication Date: 2026-08-25HUAIYUAN COUNTY PENGKUN NEW BUILDING MATERIALS CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202521938385.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-09
Publication Date
2026-08-25
Estimated Expiration
2035-09-09

AI Technical Summary

Technical Problem

The drainage system of existing hydraulic retaining walls is prone to clogging, leading to water accumulation, increased lateral pressure, and potentially causing wall deformation or collapse.

Method used

Design a backwash drainage system including an intercepting filter screen, a high-pressure nozzle, a high-pressure water pipe, a high-pressure pump, a suction pipe, a filter element, an inclined guide pipe, a drainage orifice plate, permeable bricks, a layer of large-particle sand and gravel, a fiber filter screen, a metal filter screen, and a PVC pipe. The system uses high-pressure water flow to backwash away blockages and ensure smooth drainage.

Benefits of technology

It effectively removes blockages in drainage holes, prevents water accumulation, reduces erosion of the wall, and improves the stability and safety of the retaining wall.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224678739U_ABST
    Figure CN224678739U_ABST
Patent Text Reader

Abstract

The utility model provides a water conservancy retaining wall with backflushing drainage system, including retaining wall main part, high pressure pump and water storage tank, retaining wall main part left -hand end is fixed with heavy pressure board, and the drainage hole is opened between the inclined surface of heavy pressure board and retaining wall main part, and the interception filter screen is fixedly installed in the drainage hole, the high pressure shower head is installed in the interception filter screen right top, the drainage hole plate, the water seepage brick, the big granule sand and stone layer, the fibre filter screen, the metal filter screen and the PVC pipe are installed in retaining wall main part inside from top to bottom in proper order, and this design has solved the problem that the water inlet hole structure in the original device is too single, and once the blockage phenomenon occurs, it is inconvenient to carry out the problem of clearing and unblocking, the utility model designs a backflushing drainage structure, which can not only remove the blockage of the drainage hole, ensure the smoothness of the drainage system, prevent water accumulation from causing soil saturation, and effectively reduce the erosion of water on the inside of the wall.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model is a hydraulic retaining wall with a backwashing drainage system, belonging to the technical field of hydraulic retaining walls. Background Technology

[0002] Hydraulic retaining walls are specialized structures primarily used to support and stabilize soil or rock slopes, preventing landslides and collapses, and to some extent resisting water erosion. These structures are widely used in infrastructure projects such as riverbanks, reservoir perimeters, and road and bridge construction to protect the environment and human life and property. For hydraulic retaining walls, an effective drainage system is one of the key factors ensuring their long-term stability and proper functioning. Poor drainage can lead to soil saturation, increased lateral pressure, and even wall deformation or collapse. Therefore, implementing backwashing drainage measures is crucial.

[0003] Publication number CN212026124U discloses a hydraulic retaining wall. This device includes a wall body and a toe. Near the top of the wall body, a water-guiding hole is provided to direct water into the soil, and the water-guiding hole penetrates the wall body. This invention improves the long-term stability of the retaining wall. However, the structure of the water-guiding hole is too simple. If blockage occurs, it is difficult to clear, leading to water accumulation, soil saturation, increased lateral pressure, and even wall deformation or collapse. There is an urgent need for a hydraulic retaining wall with a backwashing drainage system to solve these problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a hydraulic retaining wall with a backwash drainage system to solve the problems mentioned in the background art. This utility model designs a backwash drainage structure that can not only remove blockages at the drainage holes and ensure the smooth flow of the drainage system, but also prevent water accumulation that could lead to soil saturation and effectively reduce the erosive effect of water on the interior of the wall.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a hydraulic retaining wall with a backwash drainage system, comprising a retaining wall body, a high-pressure pump, and a water storage tank. A heavy-duty plate is fixed to the left end of the retaining wall body, and a drainage hole is opened between the inclined surface of the heavy-duty plate and the retaining wall body. An intercepting filter screen is inclinedly fixed inside the drainage hole, and a high-pressure nozzle is installed on the upper right side of the intercepting filter screen. The retaining wall body is internally assembled from top to bottom with a drainage hole plate, permeable bricks, a layer of large-particle sand and gravel, a fiber filter screen, a metal filter screen, and a PVC pipe. A moisture-proof box is embedded in the right end of the retaining wall body, and a high-pressure pump is installed inside the moisture-proof box. The water outlet of the high-pressure pump is connected to the high-pressure nozzle through a high-pressure water pipe. A water storage tank is opened on the upper side of the right end of the retaining wall body. The water inlet of the high-pressure pump is connected to the inside of the water storage tank through a suction pipe, and the water outlet of the PVC pipe is connected to the water storage tank through an inclined guide pipe.

[0006] Furthermore, a wear-resistant sleeve is fixed to the left edge of the drain hole.

[0007] Furthermore, the high-pressure water pipe is buried inside the right end of the retaining wall body.

[0008] Furthermore, a grating plate is horizontally installed at the upper end of the water storage tank.

[0009] Furthermore, a filter element is installed at the lower end of the suction tube.

[0010] Furthermore, multiple ground nails are installed through the lower end of the main body of the retaining wall.

[0011] The beneficial effects of this utility model: This utility model provides a hydraulic retaining wall with a backwash drainage system. Because this utility model incorporates intercepting filter screens, high-pressure nozzles, high-pressure water pipes, high-pressure pumps, suction pipes, filter elements, inclined guide pipes, drainage orifice plates, permeable bricks, a layer of large-particle sand and gravel, fiber filter screens, metal filter screens, and PVC pipes, our design improvements and practical use have shown that this device has a reasonable structure and good practicality. The backwash drainage structure not only removes blockages at the drainage holes, ensuring smooth drainage and preventing water accumulation leading to soil saturation, but also effectively reduces the erosive effect of water on the interior of the wall. Attached Figure Description

[0012] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0013] Figure 1 This is a three-dimensional schematic diagram of the overall structure of a hydraulic retaining wall with a backwashing drainage system according to the present invention.

[0014] Figure 2This is a cross-sectional schematic diagram of a hydraulic retaining wall with a backwashing drainage system according to the present invention.

[0015] Figure 3 This is a schematic diagram of the connection of a high-pressure pump to a hydraulic retaining wall with a backwash drainage system according to the present invention.

[0016] In the diagram: 1-Main body of retaining wall, 2-Heavy pressure plate, 3-Drainage hole, 31-Wear-resistant sleeve, 4-Interception filter screen, 5-High pressure nozzle, 6-High pressure water pipe, 7-High pressure pump, 8-Suction pipe, 9-Filter element, 10-Moisture-proof box, 11-Water storage tank, 12-Grate plate, 13-Inclined guide pipe, 14-Ground nail, 15-Drainage hole plate, 16-Permeable brick, 17-Large particle sand and gravel layer, 18-Fiber filter screen, 19-Metal filter screen, 20-PVC pipe. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0018] Please see Figures 1-3 This utility model provides a technical solution: a hydraulic retaining wall with a backwashing drainage system, including a retaining wall body 1, a high-pressure pump 7, and a water storage tank 11. A heavy-duty plate 2 is fixed to the left end of the retaining wall body 1. A drainage hole 3 is opened between the inclined surface of the heavy-duty plate 2 and the retaining wall body 1, and an intercepting filter screen 4 is inclinedly fixed inside the drainage hole 3. A high-pressure nozzle 5 is installed on the upper right side of the intercepting filter screen 4. The retaining wall body 1 is assembled from top to bottom with a drainage hole plate 15, permeable bricks 16, a large-particle sand and gravel layer 17, a fiber filter screen 18, and a metal filter. The retaining wall body 1 has a filter screen 19 and a PVC pipe 20. A moisture-proof box 10 is embedded in the right end of the retaining wall body 1, and a high-pressure pump 7 is installed in the moisture-proof box 10. The water outlet of the high-pressure pump 7 is connected to the high-pressure nozzle 5 through a high-pressure water pipe 6. A water storage tank 11 is opened on the upper right side of the retaining wall body 1. The water inlet of the high-pressure pump 7 is connected to the inside of the water storage tank 11 through a suction pipe 8. The water outlet of the PVC pipe 20 is connected to the water storage tank 11 through an inclined guide pipe 13. This design solves the problem that the water inlet structure in the original device is too simple and it is inconvenient to clean the blockage once it is blocked.

[0019] As the first embodiment of this utility model: a wear-resistant sleeve 31 is fixed to the left edge of the drain hole 3. By adding the wear-resistant sleeve 31, the left edge of the drain hole 3 can be prevented from being easily damaged.

[0020] A high-pressure water pipe 6 is buried inside the right end of the retaining wall body 1. A grating plate 12 is horizontally installed on the upper end of the water storage tank 11. The grating plate 12 prevents fallen leaves from entering the water storage tank 11. A filter element 9 is installed at the lower end of the suction pipe 8. The filter element 9 allows the suction pipe 8 to draw water from the water storage tank 11 for filtration, preventing it from clogging the high-pressure pump 7 and the high-pressure nozzle 5 during use. Multiple ground nails 14 are installed through the lower end of the retaining wall body 1. The addition of multiple ground nails 14 improves the retaining stability of the retaining wall body 1.

[0021] As a second embodiment of this utility model: In actual use, external water enters the PVC pipe 20 through the drain hole 3, and also seeps downwards sequentially into the drain plate 15, the permeable bricks 16, the large-particle sand and gravel layer 17, the fiber filter screen 18, and the metal filter screen 19, finally falling into the PVC pipe 20. The water in the PVC pipe 20 is temporarily stored in the water storage tank 11 through the inclined guide pipe 13. The sequential arrangement of the drain plate 15, the permeable bricks 16, the large-particle sand and gravel layer 17, the fiber filter screen 18, and the metal filter screen 19 can effectively prevent seepage. The incoming water undergoes multiple filtration processes. Larger impurities entering through the drain hole 3 are intercepted and filtered by the filter screen 4. When the screen becomes clogged, the high-pressure pump 7 is activated. The suction end of the high-pressure pump 7 draws water from the water storage tank 11 through the suction pipe 8 and the filter element 9, and sprays it onto the surface of the filter screen 4 through the high-pressure water pipe 6 and the high-pressure nozzle 5. Most of the high-pressure water flow passes through the mesh of the filter screen 4, impacting the intercepted impurities. Due to the high pressure, the intercepted impurities can be pushed out through the drain hole 3 in the opposite direction, thus achieving the backwashing function.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0023] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A hydraulic retaining wall with a backwashing drainage system, comprising a retaining wall body (1), a high-pressure pump (7), and a water storage tank (11), characterized in that: A heavy pressure plate (2) is fixed at the left end of the main body (1) of the retaining wall. A drainage hole (3) is provided between the inclined surface of the heavy pressure plate (2) and the main body (1) of the retaining wall. An intercepting filter (4) is fixed in the drainage hole (3) at an angle. A high-pressure nozzle (5) is installed on the upper right side of the intercepting filter (4). The retaining wall body (1) is constructed from top to bottom with a drainage hole plate (15), permeable bricks (16), a large-particle sand and gravel layer (17), a fiber filter screen (18), a metal filter screen (19), and a PVC pipe (20). A moisture-proof box (10) is embedded at the right end of the retaining wall body (1), and a high-pressure pump (7) is installed inside the moisture-proof box (10). The outlet of the high-pressure pump (7) is connected to the high-pressure nozzle (5) through a high-pressure water pipe (6). A water storage tank (11) is provided on the upper right side of the retaining wall body (1). The inlet of the high-pressure pump (7) is connected to the inside of the water storage tank (11) through a suction pipe (8). The outlet of the PVC pipe (20) is connected to the water storage tank (11) through an inclined guide pipe (13).

2. A hydraulic retaining wall with a backwashing drainage system according to claim 1, characterized in that: A wear-resistant sleeve (31) is fixed to the left edge of the drainage hole (3).

3. A hydraulic retaining wall with a backwashing drainage system according to claim 1, characterized in that: The high-pressure water pipe (6) is buried inside the right end of the retaining wall body (1).

4. A hydraulic retaining wall with a backwashing drainage system according to claim 1, characterized in that: A grating plate (12) is horizontally installed at the upper end of the water storage tank (11).

5. A hydraulic retaining wall with a backwashing drainage system according to claim 1, characterized in that: A filter element (9) is installed at the lower end of the suction tube (8).

6. A hydraulic retaining wall with a backwashing drainage system according to claim 1, characterized in that: Multiple ground nails (14) are installed through the lower end of the main body (1) of the retaining wall.

Citation Information

Patent Citations

  • Water conservancy retaining wall

    CN212026124U