Geogrid slope protection structure for expansive soil channels

By designing modular components and a rainwater harvesting system, the problem of repairing local damage to geogrid slope protection structures and irrigating vegetation has been solved, enabling rapid replacement and automatic irrigation, and improving the stability and environmental friendliness of expansive soil channels.

CN224431469UActive Publication Date: 2026-06-30GUANGXI CONSTR VOCATIONAL & TECH COLLEGE

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGXI CONSTR VOCATIONAL & TECH COLLEGE
Filing Date
2025-07-30
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing geogrid slope protection structures suffer from impaired overall reinforcement performance and are difficult to repair after local fractures. Furthermore, the vegetation requires time-consuming and labor-intensive manual irrigation, resulting in high maintenance costs and low efficiency.

Method used

A modular component was designed, including ground-breaking columns, sliding columns, rotating columns, and locking columns, to enable the rapid disassembly and replacement of the grid and to automatically irrigate the vegetation through a rainwater collection and pumping system, reducing human intervention.

Benefits of technology

It enables rapid replacement of damaged sections of the grating, reduces maintenance costs, decreases the time and labor required for manual watering of vegetation, and improves the stability and environmental friendliness of the slope protection structure.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of ecological slope protection technology and discloses a geogrid slope protection structure for expansive soil channels. The structure includes a slope body, a waterproof wall fixedly connected to the upper surface of the slope body, a water outlet pipe fixedly connected to the upper surface of the slope body, a water pump fixedly connected to the upper surface of the slope body, and modular components provided on the outer wall of the slope body. Each modular component includes a shell, the lower surface of which is fixedly connected to the outer wall of the slope body, a geogrid fixedly connected to the inner wall of the shell, a soil-breaking column fixedly connected inside the shell, a sliding column slidably connected to the inner wall of the soil-breaking column, a rotating column fixedly connected to the upper surface of the sliding column slidably ...
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Description

Technical Field

[0001] This utility model relates to the field of ecological slope protection technology, and in particular to a geogrid slope protection structure for expansive soil channels. Background Technology

[0002] In expansive soil channel engineering, the use of geogrid slope protection structure is to solve the stability problem caused by the special engineering properties of expansive soil. Through the friction between the high tensile strength geogrid and the soil, the lateral deformation of the soil is restrained, forming an overall stable structure. It has a good effect on slope stabilization and can significantly improve the long-term stability of expansive soil channel slopes. It is especially suitable for areas with frequent alternation of dry and wet climates or strong expansibility of the channel foundation.

[0003] Existing geogrid slope protection achieves the stability of expansive soil channels through a structure of layered reinforcement and surface protection. After using a large area of ​​geogrid for paving, expansive soil is added and then ordinary soil is laid on top. The geogrid is fixed to the ground by reinforcement to achieve the purpose of slope stabilization and soil fixation.

[0004] The core problem with existing technology is that once a section of the grid breaks, the overall reinforcement performance is compromised and it is difficult to repair in situ. Repairing it would require too much manpower and resources. In addition, for the sake of ecological protection, the vegetation planted on the grid needs to be watered manually, which is time-consuming and labor-intensive. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a geogrid slope protection structure for expansive soil channels, which aims to improve the problem of excessive difficulty in repairing and high replacement costs when the entire geogrid is damaged in a localized manner.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a geogrid slope protection structure for expansive soil channels, including a slope body, a waterproof wall fixedly connected to the upper surface of the slope body, a water outlet pipe fixedly connected to the upper surface of the slope body, a water pump fixedly connected to the upper surface of the slope body, and modular components provided on the outer wall of the slope body.

[0007] The modular component includes an outer shell, the lower surface of which is fixedly connected to the outer wall of the slope, a grid fixedly connected to the inner wall of the outer shell, a soil-breaking column fixedly connected inside the outer shell, a sliding column one slidably connected to the inner wall of the soil-breaking column, a rotating column fixedly connected to the upper surface of the sliding column one, a locking column fixedly connected to the outer wall of the sliding column one, a cone head one fixedly connected to the lower surface of the sliding column, a sliding column two slidably connected to the inner wall of the soil-breaking column, a spring fixedly connected to the outer wall of the sliding column two, a cone head two fixedly connected to one end of the sliding column two, one end of the spring fixedly connected to the inner wall of the soil-breaking column, and a cone head three fixedly connected to the lower surface of the soil-breaking column.

[0008] Furthermore, a foot protection wall is fixedly connected to the outer wall of the slope, a rain-collecting pipe is fixedly connected to the inside of the slope, a drain pipe is fixedly connected to the outer wall of the rain-collecting pipe, a water-collecting pool is fixedly connected to the outer wall of the drain pipe, the outer wall of the water-collecting pool is fixedly connected to the inside of the slope, an inlet pipe is attached to the inside of the water-collecting pool, a filter cover is attached to the inner wall of the inlet pipe, a pipe cap is threaded to the outer wall of the filter cover, the lower surface of the pipe cap is attached to the upper surface of the inlet pipe, the input end of the water pump is fixedly connected to the outer surface of the inlet pipe, a U-shaped pipe is fixedly connected to the output end of the water pump, and a second outlet pipe is fixedly connected to one end of the U-shaped pipe.

[0009] Furthermore, the sliding column two is slidably connected inside the slope, and the soil-breaking column is slidably connected inside the slope.

[0010] Furthermore, the lower surface of the grid is attached to the outer wall of the slope, and the water pump is located inside the waterproof wall.

[0011] Furthermore, the outer wall of the rain-collecting pipe is fixedly connected to the inside of the slope, and the outer wall of the water-leaking pipe is fixedly connected to the inside of the slope.

[0012] Furthermore, the outer wall of the water inlet pipe is fixedly connected to the inside of the slope, and the water collection pool is located inside the slope.

[0013] Furthermore, one end of the second water outlet pipe is fixedly connected to the outer wall of the first water outlet pipe.

[0014] Furthermore, a nozzle is fixedly connected to the outer wall of the water outlet pipe.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, when it is necessary to replace the damaged part, the rotating column is pulled upward to release the locking of the sliding column one inside the soil breaking column to the sliding column two. Then the spring on the outer wall of column two will retract the sliding column two into the soil breaking column to release the fixation to the soil layer. Then the entire device can be replaced. This solves the problem of the difficulty of repairing and the high cost of replacement when the whole grid is partially damaged.

[0017] 2. In this utility model, a rainwater recycling and reuse device is set up. During the rainy season, the water flowing down the slope will flow from the water collection pipe under the retaining wall into the water collection pool set up in the slope. When the dry season arrives, the water pump on the slope will be started to pump the water from the water collection pool to irrigate the vegetation layer on the grid, ensuring the survival of the vegetation. This not only reduces manpower and material resources but also effectively prevents soil erosion. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the geogrid slope protection structure for expansive soil channels proposed in this utility model.

[0019] Figure 2This is a schematic diagram of the pump section of the geogrid slope protection structure for expansive soil channels proposed in this utility model.

[0020] Figure 3 This is a schematic diagram of the geogrid portion of the geogrid slope protection structure for expansive soil channels proposed in this utility model.

[0021] Figure 4 This is a schematic diagram of the water collection pool part of the geogrid slope protection structure for expansive soil channels proposed in this utility model.

[0022] Figure 5 for Figure 1 Enlarged view of point A in the middle.

[0023] Legend:

[0024] 1. Footing wall; 2. Slope; 3. Outer shell; 4. Rotating column; 5. Waterproof wall; 6. Water pump; 7. Outlet pipe one; 8. Sprinkler head; 9. Grille; 10. Locking column; 11. Sliding column one; 12. Cone head one; 13. Sliding column two; 14. Spring; 15. Cone head two; 16. Cone head three; 17. Breaking column; 18. Rainwater collection pipe; 19. Water collection pool; 20. Inlet pipe; 21. Filter cover; 22. Pipe cover; 23. U-shaped pipe; 24. Outlet pipe two; 25. Leakage pipe. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figure 1 , Figure 2 , Figure 3 and Figure 5 An embodiment of this utility model provides: a geogrid slope protection structure for expansive soil channels, including a slope body 2, the slope body 2 for fixing the soil breaking column 17, a waterproof wall 5 fixedly connected to the upper surface of the slope body 2, the waterproof wall 5 for shielding the water pump 6 from rainwater, a water outlet pipe 7 fixedly connected to the upper surface of the slope body 2, the water outlet pipe 7 for connecting the nozzle 8, a water pump 6 fixedly connected to the upper surface of the slope body 2 for pumping out water from the water collection pool 19, and modular components provided on the outer wall of the slope body 2;

[0027] The modular component includes a housing 3 for fixing the grid 9 and modular splicing. The lower surface of the housing 3 is fixedly connected to the outer wall of the slope 2. The grid 9 is fixedly connected to the inner wall of the housing 3 for fixing the slope 2. A soil-breaking column 17 is fixedly connected inside the housing 3 for insertion into the slope 2. A sliding column 11 is slidably connected to the inner wall of the soil-breaking column 17 for pushing out the sliding column 2 13. A rotating column 4 is fixedly connected to the upper surface of the sliding column 11 for pushing the sliding column 11 and rotating and locking it. A locking column 10 is fixedly connected to the outer wall of the sliding column 11 for locking the soil-breaking column 17. The groove inside forms a lock. A cone head 12 is fixedly connected to the lower surface of the sliding column 11. The cone head 12 is used to push open the sliding column 2 13. The inner wall of the soil breaking column 17 is slidably connected to the sliding column 2 13. The sliding column 2 13 is used to fix the soil breaking column 17 and the soil. A spring 14 is fixedly connected to the outer wall of the sliding column 2 13. The spring 14 is used to push the sliding column 2 13 back to its original state. A cone head 2 15 is fixedly connected to one end of the sliding column 2 13. The cone head 2 15 is used to break the soil. One end of the spring 14 is fixedly connected to the inner wall of the soil breaking column 17. A cone head 3 16 is fixedly connected to the lower surface of the soil breaking column 17. The cone head 3 16 is used to break the soil.

[0028] Reference Figure 1 - Figure 4 A protective wall 1 is fixedly connected to the outer wall of slope 2 to prevent objects from rolling down slope 2. A rainwater collection pipe 18 is fixedly connected inside slope 2 to collect rainwater. A drain pipe 25 is fixedly connected to the outer wall of rainwater collection pipe 18 to introduce rainwater from rainwater collection pipe 18 into a water collection tank 19. The water collection tank 19 is fixedly connected to the outer wall of drain pipe 25 to store rainwater. The outer wall of water collection tank 19 is fixedly connected inside slope 2. An inlet pipe 20 is attached to the inside of water collection tank 19 to cooperate with water pump 6 to draw water from water collection tank 19. A filter cover 21 is attached to the inner wall of inlet pipe 20 to filter water. A pipe cap 22 is threadedly connected to the outer wall of filter cover 21 to connect filter cover 21 and seal inlet pipe 20. The lower surface of pipe cap 22 is attached to inlet pipe. On the upper surface of 20, the input end of water pump 6 is fixedly connected to the outer surface of water inlet pipe 20, and the output end of water pump 6 is fixedly connected to U-shaped pipe 23. U-shaped pipe 23 is used to connect to water outlet pipe 24. One end of U-shaped pipe 23 is fixedly connected to water outlet pipe 24. Water outlet pipe 24 is used to connect to water outlet pipe 7. Sliding column 13 is slidably connected inside slope 2. Soil breaking column 17 is slidably connected inside slope 2. The lower surface of grid 9 is attached to the outer wall of slope 2. Water pump 6 is set inside waterproof wall 5. Rain collection pipe 18 is fixedly connected to the outer wall of slope 2. Leakage pipe 25 is fixedly connected to the outer wall of slope 2. Water inlet pipe 20 is fixedly connected to the outer wall of slope 2. Water collection pool 19 is set inside slope 2. One end of water outlet pipe 24 is fixedly connected to the outer wall of water outlet pipe 7. Sprinkler 8 is fixedly connected to the outer wall of water outlet pipe 7. Sprinkler 8 is used to spray water on vegetation.

[0029] Working principle: When using this expansive soil channel geogrid slope protection structure, firstly, the slope surface of slope 2 needs to be leveled. Then, align the soil-breaking columns 17 under the outer shell 3 with the plane, and use the cone head 3 16 to drive the four soil-breaking columns 17 into the soil. Then, push the rotating column 4 downwards. The rotating column 4 pushes the sliding column 11 downwards. Use the cone head 12 under the sliding column 11 to push the sliding column 2 13 inside the soil-breaking column 17 to both sides, so that it is inserted into the soil layer. When the rotating column 4 is pressed to the bottom, slightly twist the rotating column 4 to lock the locking column 10 with the locking groove inside the soil-breaking column 17, so as to firmly fix the outer shell 3 and the geogrid 9. Then, fill the outer shell 3 with soil, and then sow grass seeds or plant dwarf vegetation to further reinforce the slope with the root system of the plants. When the facility is damaged, twist the rotating column 4 again to fix it. After releasing the locking mechanism from the soil-breaking column 17, the sliding column 11 is pulled upwards. Then, the spring 14 on the outer wall of the sliding column 2 13 will cause the sliding column 2 13 to retract back into the soil-breaking column 17, thus releasing the soil-breaking column 17 from fixing the soil, allowing the damaged facility to be replaced. This design solves the problem of difficulty in repairing damaged facilities. At the same time, it utilizes ecological resources for soil stabilization, which is more environmentally friendly and aesthetically pleasing. When it rains, rainwater will flow down the slope and be collected in the water collection pool 19 inside the slope 2 through the rainwater collection pipe 18. During the dry season, the water pump 6 can be used to pump the rainwater up through the inlet pipe 20 and the filter cover 21 inside the filter, and spray it down through the nozzle 8 on the outlet pipe 1 7 to prevent the vegetation inside the outer shell 3 from dying due to lack of water. This design solves the problem of time-consuming and labor-intensive manual water transportation and can effectively prevent soil erosion.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An earthwork geogrid revetment structure for an expansive soil channel, comprising a slope body (2), characterized in that: A waterproof wall (5) is fixedly connected to the upper surface of the slope (2), a water outlet pipe (7) is fixedly connected to the upper surface of the slope (2), a water pump (6) is fixedly connected to the upper surface of the slope (2), and modular components are provided on the outer wall of the slope (2). The modular component includes a shell (3), the lower surface of which is fixedly connected to the outer wall of the slope (2), a grid (9) is fixedly connected to the inner wall of the shell (3), a soil-breaking column (17) is fixedly connected inside the shell (3), a sliding column one (11) is slidably connected to the inner wall of the soil-breaking column (17), a rotating column (4) is fixedly connected to the upper surface of the sliding column one (11), a locking column (10) is fixedly connected to the outer wall of the sliding column one (11), a cone head one (12) is fixedly connected to the lower surface of the sliding column one (11), a sliding column two (13) is slidably connected to the inner wall of the soil-breaking column (17), a spring (14) is fixedly connected to the outer wall of the sliding column two (13), a cone head two (15) is fixedly connected to one end of the sliding column two (13), one end of the spring (14) is fixedly connected to the inner wall of the soil-breaking column (17), and a cone head three (16) is fixedly connected to the lower surface of the soil-breaking column (17).

2. The expansive soil channel geogrid revetment structure according to claim 1, wherein: The slope (2) is fixedly connected to the outer wall of the slope (2) and toe wall (1). The slope (2) is fixedly connected to the inside of the slope (2). The rain collection pipe (18) is fixedly connected to the outer wall of the rain collection pipe (18) and to the outside of the rain collection pipe (18). The water collection pool (19) is fixedly connected to the outer wall of the water collection pipe (25). The water collection pool (19) is fixedly connected to the inside of the slope (2). The water collection pool (19) is fitted with an inlet pipe (20) on the inner wall. The filter cover (21) is fitted to the inner wall of the inlet pipe (20). The filter cover (21) is threadedly connected to a pipe cover (22). The lower surface of the pipe cover (22) is fitted to the upper surface of the inlet pipe (20). The input end of the water pump (6) is fixedly connected to the inner wall of the inlet pipe (20). The output end of the water pump (6) is fixedly connected to a U-shaped pipe (23). One end of the U-shaped pipe (23) is fixedly connected to an outlet pipe (24).

3. The expansive soil channel geogrid revetment structure according to claim 1, wherein: The outer wall of the sliding column (13) is slidably connected to the inside of the slope (2), and the outer wall of the soil-breaking column (17) is slidably connected to the inside of the slope (2).

4. The geogrid slope protection structure for expansive soil channels according to claim 1, characterized in that: The lower surface of the grid (9) is attached to the outer wall of the slope (2), and the water pump (6) is located inside the waterproof wall (5).

5. The geogrid slope protection structure for expansive soil channels according to claim 2, characterized in that: The outer wall of the rain-collecting pipe (18) is fixedly connected to the inside of the slope (2), and the outer wall of the water-leaking pipe (25) is fixedly connected to the inside of the slope (2).

6. The geogrid slope protection structure for expansive soil channels according to claim 2, characterized in that: The outer wall of the water inlet pipe (20) is fixedly connected to the inside of the slope (2), and the water collection pool (19) is set inside the slope (2).

7. The geogrid slope protection structure for expansive soil channels according to claim 2, characterized in that: One end of the second water outlet pipe (24) is fixedly connected to the outer wall of the first water outlet pipe (7).

8. The geogrid slope protection structure for expansive soil channels according to claim 2, characterized in that: A nozzle (8) is fixedly connected to the outer wall of the water outlet pipe (7).