A highway subgrade slope grass-planting soil-fixing net pad
By designing an anti-detachment anchor point structure and lateral cross-restraint components, the problem of loosening and slippage of the grass-planted soil stabilization net mat on the roadbed slope was solved, ensuring the stable laying of the soil stabilization net and the growth conditions of the plants, thus improving the ecology and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 吴开杰
- Filing Date
- 2025-07-14
- Publication Date
- 2026-07-07
AI Technical Summary
During use, the grass-planted soil stabilization mats on highway subgrade slopes are prone to loosening and slippage, which can be blown away by the wind, affecting ecological stability and safety.
The anti-detachment anchor point structure, combined with lateral and cross restraint components, and the cooperation of threaded tie rods, swivels and anti-reverse plates, achieves stable installation of the soil stabilization net, prevents loosening and slippage, and provides conditions for plant growth.
It enables the stable laying of soil stabilization netting on the slope surface, preventing it from being blown away by the wind and enhancing ecological greening and slope stability.
Smart Images

Figure CN224468403U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of highway subgrade slope, and in particular relates to a grass planting and soil stabilization net mat for highway subgrade slope. Background Technology
[0002] Grass-planting soil-stabilizing net mats are a type of composite material specifically used for slope protection of highway and railway subgrades, as well as for water and soil conservation projects such as river channels and dams. They are mainly made of high-strength, aging-resistant synthetic materials to form a mesh structure, combined with grass seeds, fertilizers, and other substances to achieve the dual functions of stabilizing the soil and greening vegetation.
[0003] In highway maintenance, the ecological stability of vegetation on roadbed slopes determines soil stability. Exposed slopes are susceptible to natural factors such as rainwater erosion and wind erosion, leading to soil erosion and potentially geological disasters such as slope collapse, threatening the safe operation of highways. Therefore, it is necessary to provide a roadbed slope vegetation soil stabilization netting that uses an anti-detachment anchor point structure, combined with lateral and cross restraint components to achieve stable installation, preventing the netting from loosening or slipping during use. This effectively and stably lays the soil stabilization netting on the slope surface, preventing it from being blown away by the wind, while also providing good conditions for plant growth, achieving both ecological greening and slope stability. Utility Model Content
[0004] The purpose of this utility model is to provide a grass-planting and soil-stabilizing net mat for highway subgrade slopes. It adopts an anti-detachment anchor point structure and, together with lateral and cross restraint components, achieves stable installation, preventing the net mat from loosening or slipping during use. It effectively lays the soil-stabilizing net mat stably on the slope surface, preventing it from being blown away by the wind, while also providing good conditions for plant growth, achieving ecological greening and slope stability, thereby solving the above-mentioned technical problems.
[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A grass-planting and soil-stabilizing net mat for highway subgrade slopes, comprising a soil-stabilizing net: side cables are threaded through both sides of the soil-stabilizing net, and embedded pins are provided at the four corners of the soil-stabilizing net. A threaded pressure head is threadedly connected to the top of the embedded pin, and a threaded tie rod is threaded through one side of the threaded pressure head. The threaded tie rod is threadedly connected to the threaded pressure head. A backflow prevention component is provided in the inner cavity of the embedded pin. The backflow prevention component includes a backflow prevention plate rotatably connected to the inner cavity of the embedded pin. A rectangular slot adapted to the backflow prevention plate is opened on one side of the embedded pin. A rotating ring is rotatably connected to one end of the threaded tie rod, and the end of the side cable away from the soil-stabilizing net is bolted to the inner cavity of the rotating ring.
[0006] Preferably, a threaded push rod is fixedly connected to the bottom of the threaded pressure head, and a guide plate is fixedly connected to the inner cavity of the check plate, with the bottom end of the threaded push rod in close contact with the top of the guide plate.
[0007] Preferably, a wedge-shaped stop bar is fixedly connected to the top of the inner cavity of the rectangular slot, and the anti-reverse plate contacts the inclined surface of the wedge-shaped stop bar in a vertical state.
[0008] Preferably, the surface of the soil stabilization net is provided with cross-distributed inclined cables, and both ends of the inclined cables are connected to swivel bolts.
[0009] Preferably, U-shaped soil nails are inserted into the surfaces of the side cables and stay cables, and the U-shaped soil nails are implanted inside the slope.
[0010] The beneficial effects of this utility model are:
[0011] 1. This utility model uses a backstop component to pre-embed and fix the pre-embedded pins. Then, the side cables and threaded tie rods are used together to tighten and fix the soil stabilization net, so that the soil stabilization net can stably cover the slope. Finally, the threaded tie rods and swivel rings are used together to tighten and fix the side cables and inclined cables, thus achieving the purpose of stable and reliable installation and preventing the soil stabilization net from being blown away by the wind.
[0012] 2. This utility model uses the combined use of threaded push rod and guide inclined plate to squeeze and rotate the anti-reverse plate, causing the anti-reverse plate to rotate inside the soil, thereby preventing the pre-embedded pin from slipping out of the soil and enhancing the stability of the pre-embedded pin after installation.
[0013] 3. By setting a wedge-shaped stop bar, the anti-reverse plate is limited in a vertical state, thereby preventing the anti-reverse plate from rotating on its own during the process of inserting the pre-embedded pin into the slope, which would affect the smooth insertion of the pre-embedded pin. Attached Figure Description
[0014] in:
[0015] Figure 1 This is a top view schematic diagram of one embodiment of the present utility model;
[0016] Figure 2 This is a three-dimensional schematic diagram of a pre-embedded pin, threaded tie rod, and anti-reverse assembly according to an embodiment of the present invention;
[0017] Figure 3 This is an exploded perspective view of a pre-embedded pin, threaded tie rod, and anti-reverse assembly according to an embodiment of the present invention.
[0018] Figure 4 This is a front sectional view of a pre-embedded pin, threaded pressure head, and anti-reverse assembly according to an embodiment of the present invention.
[0019] The attached diagram lists the components represented by each number as follows:
[0020] 1. Soil stabilization mesh; 2. Edge cable; 3. Embedded pin; 4. Threaded pressure head; 5. Threaded tie rod; 6. Anti-reverse component; 61. Anti-reverse clamp; 62. Rectangular groove; 63. Threaded push rod; 64. Guide inclined plate; 65. Wedge-shaped stop bar; 7. Rotary ring; 8. Cable tie; 9. U-shaped soil nail. Detailed Implementation
[0021] In the following description, embodiments of the roadbed slope grass planting and soil stabilization netting of this utility model will be described with reference to the accompanying drawings.
[0022] Figure 1-4 This invention illustrates an embodiment of a roadbed slope stabilization net mat, comprising a stabilization net 1. Side cables 2 are threaded through both sides of the stabilization net 1. Cross-shaped inclined cables 8 are arranged on the surface of the stabilization net 1, with both ends of the inclined cables 8 bolted to swivel rings 7. U-shaped soil nails 9 are inserted into the surfaces of the side cables 2 and inclined cables 8, and are embedded into the slope. Pre-embedded pins 3 are provided at each of the four corners of the stabilization net 1. A threaded pressure head 4 is threaded to the top of the pre-embedded pin 3, and a threaded push rod 63 is fixedly connected to the bottom of the threaded pressure head 4. A guide inclined plate 64 is fixedly connected to the inner cavity of a check plate 61. The bottom end of the threaded push rod 63 is in close contact with the top of the guide inclined plate 64. Through the combined use of the threaded push rod 63 and the guide inclined plate 64, the check plate 61 is squeezed and rotated, causing it to rotate within the soil, thereby preventing the pre-embedded pins 3 from slipping out of the soil. This enhances the stability of the pre-embedded pin 3 after installation. A wedge-shaped stop bar 65 is fixedly connected to the top of the inner cavity of the rectangular slot 62. The anti-reverse plate 61 contacts the inclined surface of the wedge-shaped stop bar 65 in a vertical state. The wedge-shaped stop bar 65 limits the anti-reverse plate 61 in a vertical state, thereby preventing the anti-reverse plate 61 from rotating on its own during the process of implanting the pre-embedded pin 3 into the slope, which would affect the smooth implantation of the pre-embedded pin 3. A threaded tie rod 5 is provided through one side of the threaded pressure head 4. The threaded tie rod 5 is threadedly connected to the threaded pressure head 4. An anti-reverse component 6 is provided in the inner cavity of the pre-embedded pin 3. The anti-reverse component 6 includes an anti-reverse plate 61 rotatably connected to the inner cavity of the pre-embedded pin 3. A rectangular slot 62 adapted to the anti-reverse plate 61 is opened on one side of the pre-embedded pin 3. A rotating ring 7 is rotatably connected to one end of the threaded tie rod 5. The end of the side cable 2 away from the soil stabilization net 1 is bolted to the inner cavity of the rotating ring 7.
[0023] Working Principle: When using this invention, the user inserts the pre-embedded pin 3 into the slope, then rotates the threaded pressure head 4. During rotation, the threaded pressure head 4 drives the threaded push rod 63 to descend within the cavity of the pre-embedded pin 3, causing the bottom end of the threaded push rod 63 to press against the surface of the guide inclined plate 64. Guided by the inclined surface at the top of the guide inclined plate 64, the anti-reverse clamp 61 rotates within the cavity of the pre-embedded pin 3. This causes the wedge-shaped stop strip 65 to deform under the pressure of the anti-reverse clamp 61, simultaneously disengaging the top of the anti-reverse clamp 61 from the wedge-shaped stop strip 65, thus stably locking the anti-reverse clamp 61 into the soil. The user then... The soil stabilization net 1 is laid on the slope surface. Then, the end of the side cable 2 is fastened to the inner cavity of the swivel ring 7. At the same time, the inclined cable 8 is laid on the surface of the soil stabilization net 1, and the end of the inclined cable 8 is fastened to the inner cavity of the swivel ring 7. Next, the user rotates the threaded rod 5. During the rotation, the threaded rod 5 pulls the swivel ring 7, which tightens the side cable 2 and the inclined cable 8, thereby allowing the soil stabilization net 1 to be stably laid on the slope surface. Finally, the user drives U-shaped soil nails 9 into the surface of the side cable 2 and the inclined cable 8, so that the U-shaped soil nails 9 are inserted into the inside of the slope, further fixing the soil stabilization net 1, the side cable 2, and the inclined cable 8.
[0024] In summary, this roadbed slope grass planting and soil stabilization mat, through the setting of the anti-reverse component 6, pre-embeds and fixes the pre-embedded pin 3. Then, through the cooperation of the side cable 2 and the threaded tie rod 5, the soil stabilization net 1 is tightened and fixed, so that the soil stabilization net 1 can stably cover the slope surface. Finally, through the cooperation of the threaded tie rod 5 and the swivel ring 7, the side cable 2 and the inclined cable 8 are tightened and fixed, thus achieving the purpose of stable and reliable installation and preventing the soil stabilization net 1 from being blown away by the wind.
Claims
1. A grass-planting and soil-stabilizing net mat for highway subgrade slopes, characterized in that, The structure includes a soil stabilization net (1): both sides of the soil stabilization net (1) are provided with side cables (2), and the four corners of the soil stabilization net (1) are provided with embedded pins (3). The top of the embedded pin (3) is threadedly connected to a threaded pressure head (4). A threaded pull rod (5) is provided through one side of the threaded pressure head (4). The threaded pull rod (5) is threadedly connected to the threaded pressure head (4). The inner cavity of the embedded pin (3) is provided with a backstop assembly (6). The backstop assembly (6) includes a backstop plate (61) rotatably connected to the inner cavity of the embedded pin (3). A rectangular slot (62) adapted to the backstop plate (61) is opened on one side of the embedded pin (3). One end of the threaded pull rod (5) is rotatably connected to a rotating ring (7). The end of the side cable (2) away from the soil stabilization net (1) is bolted to the inner cavity of the rotating ring (7).
2. The roadbed slope stabilization netting according to claim 1, characterized in that, The bottom of the threaded pressure head (4) is fixedly connected to a threaded push rod (63), and the inner cavity of the check plate (61) is fixedly connected to a guide plate (64). The bottom end of the threaded push rod (63) is in close contact with the top of the guide plate (64).
3. The roadbed slope stabilization netting according to claim 2, characterized in that, A wedge-shaped baffle (65) is fixedly connected to the top of the inner cavity of the rectangular slot (62), and the anti-reverse plate (61) contacts the inclined surface of the wedge-shaped baffle (65) in a vertical state.
4. The roadbed slope stabilization netting according to claim 3, characterized in that, The surface of the soil stabilization net (1) is provided with cross-distributed inclined cables (8), and both ends of the inclined cables (8) are bolted and connected to the swivel ring (7).
5. The roadbed slope stabilization netting according to claim 4, characterized in that, The surface of the side cable (2) and the inclined cable (8) is fitted with U-shaped soil nails (9), which are implanted into the interior of the slope.