Erosion gully development protection method using degradable soil fixation retaining wall and retaining wall module

By using biodegradable geogrids and eco-bags for interlocking and support structures, the problems of low stability and splicing efficiency of soil stabilization retaining walls in erosion gully protection are solved, achieving efficient construction and environmentally friendly degradation soil stabilization effects.

CN121827378APending Publication Date: 2026-04-10HEILONGJIANG PROVINCIAL HYDRAULIC RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-19
Publication Date
2026-04-10

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Abstract

A degradable soil fixing retaining wall module for erosion gully development protection comprises a first geocell and a second geocell, the second geocell is arranged at one end of the first geocell, cross-shaped ecological bags are arranged in the first geocell and the second geocell, hooks are arranged in the middles of the peripheries of the first geocell and the second geocell, and the first geocell and the second geocell are connected through a connecting rod. One end of the first geogrid and one end of the second geogrid are each provided with a first connecting block, the other end of the first geogrid and the other end of the second geogrid are each provided with a second connecting block, clamping blocks are arranged in the middles of one ends of the first connecting blocks, and clamping grooves are formed in the inner sides, corresponding to the clamping blocks, of the second connecting blocks; the clamping blocks are connected with the second connecting block in a clamped mode through the corresponding clamping grooves. The stability of the spliced geogrids is enhanced, the protection effect of the soil fixing retaining wall can be improved, splicing of the geogrids can be rapidly completed, and the construction efficiency is greatly improved.
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Description

Technical Field

[0001] This invention relates to the field of gully development protection, specifically to a method for gully development protection using a biodegradable soil retaining wall, and a biodegradable soil retaining wall module for gully development protection. Background Technology

[0002] Gullies are gullies formed by surface runoff erosion. They are widespread in the natural environment, especially in areas with severe soil erosion. The development of gullies can intensify, causing serious damage to land resources, the ecological environment, and agricultural production. Therefore, it is necessary to use biodegradable soil stabilization retaining walls to protect them, thereby effectively inhibiting the further development of gullies, reducing soil erosion, and protecting land resources and the ecological environment. When the soil stabilization retaining wall device is put into use, it may undergo large deformation due to poor inner support stability, which will affect the overall protective performance of the soil stabilization retaining wall. In addition, the retaining wall device cannot be quickly assembled during use, which increases the manpower and material costs and is relatively wasteful. Summary of the Invention

[0003] The purpose of this invention is to provide a method for protecting erosion gullies by using biodegradable soil retaining walls, and a biodegradable soil retaining wall module for protecting erosion gullies, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the following technical solution is provided: A method for protection using biodegradable soil stabilization retaining walls is characterized by: a locking block at one end of geogrid one is engaged in a locking groove at one end of geogrid two; after engagement, a limiting plate can be pushed downwards to move downwards within a movable groove to limit the locking block and prevent it from moving; as the limiting plate moves, it drives a T-shaped sliding strip to move within the T-shaped groove, making the movement of the limiting plate more stable and smooth; after the transverse geogrids are spliced, the T-shaped locking strip on one side of geogrid one can slide into it. In the T-shaped groove of another set of geogrids, the geogrids are quickly spliced ​​together, allowing workers to complete the splicing of geogrids rapidly, greatly improving construction efficiency and saving time and labor costs. After splicing, a cross-shaped eco-bag is placed inside geogrids one and two. Using the hooks on the inside of geogrids one and two and the hanging holes on the eco-bag, the eco-bag is securely hung inside geogrids one and two to prevent displacement. This ensures that geogrids one and the soil... The second geogrid forms a stable overall structure, enhancing the protective effect of the soil stabilization retaining wall. Then, within the grid formed by the upper and lower splicing of the two sets of geogrids (first and second), the sliders at both ends of the support bars are aligned with the grooves on the outer surfaces of geogrids one and two. This allows the sliders to move downwards along the grooves, enabling the two sets of support bars to be supported in an X-shape within the grid. This X-shaped support enhances the stability of the entire soil stabilization retaining wall module and effectively disperses soil pressure, preventing geogrids one and two from deforming due to soil compression. When the device is put into use... Soil or filler material can be filled into the grid, geogrid one, and geogrid two. The device can be naturally degraded after a period of use, without causing long-term pollution to the environment, which is in line with the concept of green environmental protection. During the rainy season, the drainage channels one and two on the inner side of geogrid one and geogrid two form a grid structure, which allows rainwater to be quickly discharged along the drainage channels one and two, preventing rainwater from accumulating in the geogrid and effectively preventing erosion of the geogrid due to water accumulation, thus enhancing the drainage effect of the geogrid.

[0005] A biodegradable soil stabilization retaining wall module for protecting against erosion gullies includes geogrid one and geogrid two. Geogrid two is attached to one end of geogrid one. Both geogrid one and geogrid two are made of biodegradable materials and form a mesh. Each geogrid one and geogrid two contains a cross-shaped eco-bag. Hooks are located at the center of the perimeter of each geogrid one and geogrid two, and hanging holes are provided on the edges of the eco-bags corresponding to the hooks. The hooks are connected to the eco-bags through the hanging holes. A connecting block is provided at one end of each geogrid one and geogrid two, and the other end of each geogrid one and geogrid two... Each geogrid is equipped with a second connecting block. A locking block is located at the middle of one end of each connecting block, and a corresponding slot is located on one side of the second connecting block. The locking blocks engage with the second connecting block through these slots, creating cross-shaped ecological bags within both geogrids. This improves stability. X-shaped support strips are installed within the grid formed by their splicing, preventing deformation of geogrids due to soil compression. This enhances the protective effect of the soil stabilization retaining wall and allows for quick splicing between geogrids, significantly improving construction efficiency and saving time and manpower.

[0006] As a further technical solution of the present invention, both geogrid 1 and geogrid 2 are uniformly provided with transverse drainage channels 1 on their inner sides, and both geogrid 1 and geogrid 2 are uniformly provided with vertical drainage channels 2 on their inner sides, so that the drainage channels 1 and 2 on the inner sides of geogrid 1 and geogrid 2 are staggered to form a grid, which can effectively guide and divert rainwater during the rainy season, prevent rainwater from accumulating in the geogrid, and thus reduce the risk of gully development.

[0007] As a further technical solution of the present invention, inclined support strips are provided between the outer sides of geogrid one and geogrid two, and the support strips are X-shaped, so that the two sets of support strips are X-shaped and supported in the grid formed by splicing geogrid one and geogrid two, which can prevent geogrid one and geogrid two from being deformed by force and enhance their stability.

[0008] As a further technical solution of the present invention, a T-shaped retaining strip is provided at the middle position of one side of the outer surface of geogrid 1 and geogrid 2, and a T-shaped groove 2 corresponding to the T-shaped retaining strip is provided at the middle position of the other side of the outer surface of geogrid 1 and geogrid 2. The T-shaped groove 2 is slidably connected to the corresponding T-shaped retaining strip, so that when geogrid 1 and geogrid 2 are spliced ​​vertically, the T-shaped retaining strip can slide into the T-shaped groove 2, and they can be quickly spliced ​​vertically.

[0009] As a further technical solution of the present invention, each of the connecting blocks on the outer side of the card block is provided with a moving groove, and each of the moving grooves is provided with a limiting piece, and each limiting piece is slidably connected to the corresponding moving groove. After the card block is engaged, the limiting piece can move in the moving groove to limit the card block, which can prevent the card block from moving at will and make its engagement effect better.

[0010] As a further technical solution of the present invention, a T-shaped slide bar is provided at the middle position of the outer side of the limiting piece, and a T-shaped groove is provided in the connecting block 2 corresponding to the T-shaped slide bar. The T-shaped slide bar is slidably connected to the corresponding T-shaped groove, so that when the limiting piece moves, it can drive the T-shaped slide bar to slide in the T-shaped groove, which can make its movement more stable and smooth.

[0011] As a further technical solution of the present invention, both ends of the support strip are provided with sliders, and the outer surfaces of the geogrid 1 and geogrid 2 corresponding to the sliders are provided with grooves, and the sliders are slidably connected to the corresponding grooves, so that when the support strip is inserted into the grid, the sliders at both ends can be driven to slide into the grooves, and the support strip can be installed quickly. Beneficial effects

[0012] 1. By setting cross-shaped ecological bags inside geogrid one and geogrid two, a stable overall structure can be formed. After the geogrids are spliced ​​together, two sets of inclined support strips are set in the grid to form an X shape, which can effectively disperse soil pressure and prevent geogrid one and geogrid two from deforming due to soil compression, thereby enhancing the protective effect of the soil stabilization retaining wall. 2. By interlocking and fixing the horizontal geogrid 1 and geogrid 2, and connecting the upper and lower geogrids, the splicing of geogrids can be completed quickly, which greatly improves construction efficiency and saves time and manpower. Attached Figure Description

[0013] Figure 1 This is a top view of the structure of the present invention; Figure 2 This is a top sectional view of the structure of the present invention; Figure 3 This is a schematic diagram of the cross-sectional structure of one side of the geogrid and the connecting block of the present invention; Figure 4 For the present invention Figure 2 Enlarged structural diagram at point A in the middle; Figure 5 For the present invention Figure 2 Enlarged structural diagram at point B.

[0014] Numbered in the diagram: 1. Geogrid 1; 2. Geogrid 2; 3. Ecological bag; 4. Connecting block 1; 5. Connecting block 2; 6. Hook; 7. Support strip; 8. Slide groove; 9. Locking block; 10. Moving groove; 11. T-slot 1; 12. T-slot 2; 13. Sliding block; 14. Drainage channel 1; 15. Locking groove; 16. Limiting piece; 17. Hanging hole; 18. T-slide strip; 19. Drainage channel 2; 20. T-slot strip. Detailed Implementation

[0015] Please see Figures 1-5 An embodiment of the present invention provides a biodegradable soil stabilization retaining wall module for erosion gully development protection, comprising geogrid 1 and geogrid 2. One end of geogrid 1 is provided with geogrid 2, and both geogrid 1 and geogrid 2 are made of biodegradable materials. Geogrid 1 and geogrid 2 form a mesh, and both geogrid 1 and geogrid 2 are provided with cross-shaped ecological bags 3. Hooks 6 are provided in the middle of the four sides of geogrid 1 and geogrid 2, and the edges of the ecological bags 3 corresponding to the hooks 6 are provided with hanging holes 17. The hooks 6 are all connected to the ecological bags 3 through the hanging holes 17. The outer sides of geogrid 1 and geogrid 2 are provided with inclined support strips 7, and the support strips 7 are X-shaped. Both ends of the support strips 7 are provided with sliders 13, and the outer surfaces of geogrid 1 and geogrid 2 corresponding to the sliders 13 are provided with grooves 8, and the sliders 13 are all slidably connected to the corresponding grooves 8. Specifically, such as Figure 1 , Figure 2 and Figure 5 As shown, geogrid 1 and geogrid 2 are spliced ​​together after maintaining a certain distance. After splicing, the cross-shaped eco-bag 3 is placed inside geogrid 1 and geogrid 2. The eco-bag 3 is securely hung inside geogrid 1 and geogrid 2 by using the hooks 6 on the inside of geogrid 1 and geogrid 2 and the hanging holes 17 on the eco-bag 3, preventing displacement of the eco-bag 3 and forming a stable overall structure between geogrid 1 and geogrid 2, thus enhancing the protective effect of the soil stabilization retaining wall. Then, the support strips 7 are placed at both ends within the grid where the two sets of geogrid 1 and geogrid 2 are spliced ​​together. The slider 13 is aligned with the groove 8 on the outer surface of geogrid 1 and geogrid 2, so that the slider 13 moves downward along the groove 8. This allows the two sets of support bars 7 to be supported in the grid in an X shape. The X-shaped support bars 7 enhance the stability of the entire soil stabilization retaining wall module and effectively disperse soil pressure, preventing geogrid 1 and geogrid 2 from deforming due to soil compression. When the device is put into use, soil or filler can be filled into the grid, geogrid 1 and geogrid 2. The device can also be naturally degraded after a period of use, without causing long-term pollution to the environment, which is in line with the concept of green environmental protection. One end of geogrid 1 and geogrid 2 is provided with a connecting block 4, and the other end of geogrid 1 and geogrid 2 is provided with a connecting block 5. A locking block 9 is provided in the middle of one end of the connecting block 14, and a locking groove 15 is provided on one side of the connecting block 25 corresponding to the locking block 9. The locking block 9 is engaged with the connecting block 25 through the corresponding locking groove 15. A moving groove 10 is provided in the connecting block 25 outside the locking block 9, and a limiting piece 16 is provided in the moving groove 10. The limiting piece 16 is slidably connected to the corresponding moving groove 10. Specifically, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the locking block 9 of the connecting block 4 at one end of geogrid 1 is engaged in the slot 15 of the connecting block 5 at one end of geogrid 2. After the engagement is completed, the limiting piece 16 can be pushed down to move downward in the moving groove 10 to limit the locking block 9 and prevent it from moving. This allows workers to quickly complete the splicing between geogrids during the installation of geogrid 1 and geogrid 2, which greatly improves construction efficiency and saves time and labor costs. Both geogrid 1 and geogrid 2 have horizontal drainage channels 14 evenly distributed on their inner sides, and both geogrid 1 and geogrid 2 have vertical drainage channels 19 evenly distributed on their inner sides. Specifically, such as Figure 2 and Figure 5 As shown, the drainage channels 14 and 29 on the inner sides of geogrid 1 and geogrid 2 are interwoven to form a grid structure. During rainfall, rainwater can be quickly discharged along the drainage channels 14 and 29 to prevent rainwater from accumulating inside the geogrid, effectively preventing erosion of the geogrid by water accumulation and enhancing the drainage effect of the geogrid. T-shaped clips 20 are provided at the middle position of one side of the outer surface of geogrid 1 and geogrid 2, and T-shaped grooves 22 corresponding to the T-shaped clips 20 are provided at the middle position of the other side of the outer surface of geogrid 1 and geogrid 2, and the T-shaped grooves 22 are slidably connected to the corresponding T-shaped clips 20. Specifically, such as Figure 1 and Figure 2 As shown, when geogrid 1 and geogrid 2 are spliced ​​together, the T-shaped clip 20 on one side of geogrid 1 can slide into the T-shaped groove 2 12 of another set of geogrid 1, which can quickly splice the geogrids together and improve the working speed. T-shaped slide bars 18 are provided at the middle position of the outer side of the limiting piece 16, and T-shaped grooves 11 are provided in the connecting block 2 5 corresponding to the T-shaped slide bars 18, and the T-shaped slide bars 18 are slidably connected to the corresponding T-shaped grooves 11. Specifically, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, when the limiting piece 16 moves, it can drive the T-shaped slide bar 18 to move within the T-shaped groove 11, which can make the movement of the limiting piece 16 more stable and smooth.

[0016] The locking block 9 of one end of geogrid 1 connecting block 4 is engaged in the slot 15 of one end of geogrid 2 connecting block 2 5. After engagement, the limiting piece 16 can be pushed downward to move downward within the moving groove 10 to limit the locking block 9 and prevent it from moving. When the limiting piece 16 moves, it can drive the T-shaped sliding strip 18 to move within the T-shaped groove 11, making the movement of the limiting piece 16 more stable and smooth. After the horizontal geogrid splicing is completed, the T-shaped locking strip 20 on one side of geogrid 1 can slide into the T-shaped groove of another set of geogrid 1. Within geogrid 1 and geogrid 2, the upper and lower sections can be quickly spliced ​​together, allowing workers to quickly complete the splicing between geogrids, greatly improving construction efficiency and saving time and labor costs. After splicing, the cross-shaped ecological bag 3 can be placed inside geogrid 1 and geogrid 2. Using the cooperation of the hooks 6 on the inner side of geogrid 1 and geogrid 2 and the hanging holes 17 on the ecological bag 3, the ecological bag 3 is securely hung inside geogrid 1 and geogrid 2, preventing displacement of the ecological bag 3 and ensuring the geogrid 1 and geogrid 2 form a stable shape. To form a stable overall structure and enhance the protective effect of the soil stabilization retaining wall, the sliders 13 at both ends of the support strips 7 are aligned with the grooves 8 on the outer surfaces of the geogrids 1 and 2 within the grid formed by the upper and lower splicing of the two sets of geogrids 1 and 2. This allows the sliders 13 to move downwards along the grooves 8, enabling the two sets of support strips 7 to be supported in an X-shape within the grid. This X-shaped support strip enhances the stability of the entire soil stabilization retaining wall module and effectively disperses soil pressure, preventing the geogrids 1 and 2 from deforming due to soil compression. When the device is put into use... Soil or filler material can be filled into the grid, geogrid 1 and geogrid 2, and the device can be naturally degraded after a period of use, without causing long-term pollution to the environment, which is in line with the concept of green environmental protection. During the rainy season, the drainage channels 14 and 29 on the inner side of geogrid 1 and geogrid 2 can be interwoven to form a grid structure, and rainwater can be quickly discharged along the drainage channels 14 and 29 to prevent rainwater from accumulating in the geogrid, effectively preventing the geogrid from being eroded by water accumulation and enhancing the drainage effect of the geogrid.

Claims

1. A method for protection using biodegradable soil-stabilizing retaining walls, characterized by: One end of geogrid one connects to the locking block of block one, which engages with the locking groove of one end of geogrid two. After engagement, the limiting plate can be pushed downwards to move downwards within the moving groove, limiting the locking block and preventing it from moving. As the limiting plate moves, it drives the T-shaped sliding strip to move within the T-shaped groove one, making the movement of the limiting plate more stable and smooth. After the transverse geogrid splicing is completed, the T-shaped locking strip on one side of geogrid one can slide into the T-shaped groove two of another set of geogrid one, quickly aligning the geogrids. Geogrids are spliced ​​together vertically, allowing workers to quickly complete the splicing process, greatly improving construction efficiency and saving time and labor costs. After splicing, cross-shaped eco-bags are placed inside geogrid one and geogrid two. The eco-bags are securely attached to geogrids one and two by using the hooks on the inside of geogrids one and two and the hanging holes on the eco-bags, preventing displacement and ensuring a stable overall structure between geogrids one and two. The structure enhances the protective effect of the soil stabilization retaining wall. Then, within the grid formed by the upper and lower splicing of two sets of geogrids (Geogrid 1 and Geogrid 2), the sliders at both ends of the support strips are aligned with the grooves on the outer surfaces of Geogrid 1 and Geogrid 2. This allows the sliders to move downwards along the grooves, enabling the two sets of support strips to be supported in an X-shape within the grid. This X-shaped support enhances the stability of the entire soil stabilization retaining wall module and effectively disperses soil pressure, preventing Geogrid 1 and Geogrid 2 from deforming due to soil compression. When the device is put into use, soil or filler can be filled into the grid, Geogrid 1, and Geogrid 2. The device can naturally degrade after a period of use, preventing long-term environmental pollution and conforming to the concept of green environmental protection. During the rainy season, the drainage channels 1 and 2 on the inner sides of Geogrid 1 and Geogrid 2 interweave to form a grid structure, allowing rainwater to drain quickly along these channels, preventing rainwater accumulation within the geogrids and effectively preventing erosion caused by accumulated water, thus enhancing the drainage effect of the geogrids.

2. A biodegradable soil stabilization retaining wall module for erosion gully development protection using the method according to claim 1, comprising geogrid one (1) and geogrid two (2), characterized in that: One end of the geogrid 1 (1) is provided with geogrid 2 (2), and both geogrid 1 (1) and geogrid 2 (2) are made of biodegradable materials. The geogrid 1 (1) and geogrid 2 (2) form a mesh, and both geogrid 1 (1) and geogrid 2 (2) are provided with cross-shaped ecological bags (3). Hooks (6) are provided in the middle of the four sides of the geogrid 1 (1) and geogrid 2 (2), and the edges of the ecological bags (3) corresponding to the hooks (6) are provided with hanging holes (17). (6) All are connected to the ecological bag (3) through the hanging hole (17). One end of the geogrid one (1) and the geogrid two (2) are provided with a connecting block one (4), and the other end of the geogrid one (1) and the geogrid two (2) are provided with a connecting block two (5). The middle position of one end of the connecting block one (4) is provided with a card block (9), and the inner side of the connecting block two (5) corresponding to the card block (9) is provided with a card groove (15). The card block (9) is connected to the connecting block two (5) through the corresponding card groove (15).

3. A biodegradable soil stabilization retaining wall module for protecting against erosion gullies according to claim 2, characterized in that: Both geogrid 1 (1) and geogrid 2 (2) have horizontal drainage channels 1 (14) evenly distributed on their inner sides, and both geogrid 1 (1) and geogrid 2 (2) have vertical drainage channels 2 (19) evenly distributed on their inner sides; both geogrid 1 (1) and geogrid 2 (2) have inclined support bars (7) between their outer sides, and the support bars (7) are X-shaped.

4. A biodegradable soil stabilization retaining wall module for protecting against erosion gullies according to claim 2 or 3, characterized in that: T-shaped clips (20) are provided at the middle position of the outer surface on one side of both geogrid 1 (1) and geogrid 2 (2), and T-shaped grooves (12) corresponding to the T-shaped clips (20) are provided at the middle position of the outer surface on the other side of both geogrid 1 (1) and geogrid 2 (2), and the T-shaped grooves (12) are slidably connected to the corresponding T-shaped clips (20).

5. A biodegradable soil stabilization retaining wall module for protecting against erosion gullies according to claim 2, 3, or 4, characterized in that: Each of the connecting blocks (5) on the outer side of the card block (9) is provided with a moving groove (10), and each of the moving grooves (10) is provided with a limiting piece (16), and each of the limiting pieces (16) is slidably connected to the corresponding moving groove (10).

6. A biodegradable soil stabilization retaining wall module for protecting against erosion gullies according to claim 5, characterized in that: The middle position of the outer side of the limiting piece (16) is provided with a T-shaped slide bar (18), and the connecting block two (5) corresponding to the T-shaped slide bar (18) is provided with a T-shaped groove one (11), and the T-shaped slide bar (18) is slidably connected to the corresponding T-shaped groove one (11).

7. A biodegradable soil stabilization retaining wall module for protecting against erosion gullies according to claim 6, characterized in that: Both ends of the support bar (7) are provided with sliders (13), and the outer surfaces of the geogrid one (1) and geogrid two (2) corresponding to the sliders (13) are provided with grooves (8), and the sliders (13) are slidably connected to the corresponding grooves (8).