Ecological slope protection system for cliff wall

Abstract

A cliff wall ecological slope protection system comprises a cliff wall and a plurality of plant planting holes formed in the cliff wall, nutrient soil layers are arranged in the plant planting holes, the cliff wall ecological slope protection system further comprises soil blocking layers which are fixedly arranged in the plant planting holes, used for covering the nutrient soil layers and capable of allowing plant rhizomes to penetrate through and planting surface layers covering the soil blocking layers. According to the utility model, as long as the root system primarily grown in the planting surface layer can penetrate through the soil retaining layer and root in the nutrient soil layer, the root system can root on the cliff body subsequently, so that the survival rate of plants can be greatly improved.

Description

Technical Field

[0001] The utility model relates to a cliff ecological slope protection system, belonging to the field of cliff protection. Background Art

[0002] Cliff ecological management and restoration technology involves creating planting holes on the cliff and filling them with nutrient soil and plant seeds. Once the plants grow, they form a natural green barrier, ensuring the cliff's structural stability, safety, and strength, while reducing soil erosion on the slope. For example, patent authorization announcement number CN 219373201 U discloses this technology.

[0003] Nutrient soil is a soft soil with good air permeability and water retention, which is conducive to the growth and development of plant roots. Because of this soft nature, it is common for plant roots growing in this soil to be washed away by rain before they can officially take root in the cliff face. This causes the roots to slowly wither and become unable to take root in the cliff face. Simply put, the plant survival rate is relatively low. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the present application provides a cliff ecological slope protection system, which makes it easier for plant roots to take root on the cliff and increases the plant survival rate.

[0005] A cliff ecological slope protection system comprises a cliff, a plurality of plant planting holes arranged on the cliff, a nutrient soil layer is provided in the plant planting holes, a retaining layer fixedly arranged in the plant planting holes for covering the nutrient soil layer and allowing plant roots to pass through, and a planting surface layer covering the retaining layer.

[0006] Preferably, the retaining layer comprises a first gauze layer, a second gauze layer, and a straw layer arranged between the first gauze layer and the second gauze layer, and the first gauze layer and the second gauze layer are sutured and connected.

[0007] Preferably, the thickness of the retaining layer is 5 mm to 20 mm.

[0008] Preferably, the porosity of the first gauze layer and the second gauze layer are both 50% to 80%, and the pore size of the first gauze layer and the second gauze layer are both 10 mm to 30 mm.

[0009] Preferably, it further comprises a plurality of connecting nails which pass through the planting surface layer, the retaining layer, the nutrient soil layer and are connected to the bottom of the plant planting hole.

[0010] Preferably, a three-dimensional geonet is buried in the planting surface.

[0011] Preferably, a water-retaining layer made of water-absorbing resin particles is further provided at the bottom of the plant planting hole.

[0012] Preferably, a water diversion block connected to the cliff wall and used to guide rainwater on the cliff wall toward the outside of the plant planting hole is provided above the plant planting hole, and the water diversion block includes a water diversion slope inclined to the cliff wall and inclined downward, and the water diversion slope extends to the highest position corresponding to the plant planting hole.

[0013] In summary, the present invention has the following beneficial effects:

[0014] 1. The utility model provides a nutrient soil layer, a retaining soil layer and a planting surface layer in the plant planting hole, so that the plant roots are more likely to take root on the cliff wall, and the plant survival rate is higher.

[0015] 2. This utility model uses water diversion blocks to guide rainwater from the cliff wall toward the outside of the planting holes, reducing the impact on the soil in the planting holes and improving plant survival rates. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the cliff ecological slope protection system;

[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This is a schematic diagram of the retaining layer structure. DETAILED DESCRIPTION

[0019] The present invention will be further described below through specific embodiments in conjunction with the accompanying drawings.

[0020] Example: A cliff ecological slope protection system, such as Figure 1-2 As shown, it includes a cliff wall 1 and a plurality of plant planting holes 2 arranged on the cliff wall 1. A nutrient soil layer 3 is provided in the plant planting holes 2. The nutrient soil layer 3 contains peat soil, coconut husk, soil loosening agent, organic fertilizer and other substances.

[0021] It also includes a retaining layer 4 fixedly arranged in the plant planting hole 2 for covering the nutrient soil layer 3 and allowing plant roots to pass through, and a planting surface layer 5 covering the retaining layer 4. When the retaining layer 4 is fixed, it can be fixed by a plurality of connecting nails 6 that pass through the planting surface layer 5, the retaining layer 4, the nutrient soil layer 3 and are connected to the bottom of the plant planting hole 2. The connecting nails 6 can be wooden nails.

[0022] The planting surface layer 5 is used for shallow burying or sowing plant seeds, allowing the plant seeds to initially take root and germinate. The retaining layer 4 can prevent rainwater from directly eroding the nutrient soil layer 3, preventing the nutrient soil layer 3 from being lost. As long as the roots that have initially grown in the planting surface layer 5 can penetrate the retaining layer 4 and take root in the nutrient soil layer 3, they can subsequently take root in the cliff body, thereby significantly improving the plant survival rate. In the existing technology, the nutrient soil is often washed away by rainwater before the plant roots are officially rooted in the cliff wall 1, making it difficult for the plant roots to take root in the cliff wall 1, resulting in a low plant survival rate.

[0023] Retaining layer 4, see Figure 3 The method comprises a first gauze layer 41, a second gauze layer 42, and a straw layer 43 arranged between the first gauze layer 41 and the second gauze layer 42. The first gauze layer 41 and the second gauze layer 42 are sewn together to prevent the straw layer 43 from spreading. The straw in the straw layer 43 can be straw. This structure is designed based on comprehensive consideration of the penetration performance and soil retaining performance of plant roots. Specifically, the first gauze layer 41, the grass layer 43, and the second gauze layer 42 are combined to form a reliable thickness that can prevent soil loss. In this case, the thickness of the retaining layer 4 is 5mm~20mm. At the same time, the two thin layers of gauze and the grass in the grass layer 43 will not have a particularly large adverse effect on the penetration of plant roots. Moreover, due to the presence of the grass layer 43 (note that the grass layer 43 is not grass powder), the porosity and pore size of the first gauze layer 41 and the second gauze layer 42 can be designed to be larger. In this case, the porosity of the first gauze layer 41 and the second gauze layer 42 are both 50%~80%, and the pore size of the first gauze layer 41 and the second gauze layer 42 are both 10mm~30mm. In addition, the grass in the grass layer 43 can provide nutrition after being decomposed by microorganisms, which is beneficial to plant growth.

[0024] Of course, in other embodiments, the retaining layer 4 may also be made directly of gauze, which has a slightly worse effect than the retaining layer 4 described above, but has the advantage of a simple structure.

[0025] A three-dimensional geonet is also buried in the planting surface layer 5. The three-dimensional geonet has a high soil solidification and retardation rate, and is loose and flexible in texture, which is conducive to the rooting and germination of plant seeds in the planting surface layer 5 and allows roots to pass through.

[0026] The bottom of the plant planting hole 2 is also provided with a water-retaining layer made of water-absorbing resin particles. The water-retaining layer is not shown in the accompanying drawings. The water-retaining layer can store a certain amount of water and release a certain amount of water when the nutrient soil layer 3 is relatively dry to ensure the survival of the plants.

[0027] A water diversion block 7 is provided above the plant planting hole 2, which is connected to the cliff wall 1 and is used to guide rainwater on the cliff wall 1 toward the outside of the plant planting hole 2. Specifically, the water diversion block 7 includes a water diversion slope 71 inclined to the cliff wall 1 and inclined downward. The water diversion slope 71 extends to the highest position corresponding to the plant planting hole 2. When rainwater rushes downward along the cliff wall 1, the water diversion slope 71 guides the rainwater on the cliff wall 1 toward the outside of the plant planting hole 2, reducing the impact on the soil in the plant planting hole 2 and improving the survival rate of the plants.

[0028] The above embodiments are merely descriptions of preferred implementations of the present invention and are not intended to limit the concept and scope of the present invention. Any modifications and improvements to the technical solution of the present invention made by a person of ordinary skill in the art without departing from the design concept of the present invention shall fall within the scope of protection of the present invention. The technical content sought to be protected by the present invention is fully set forth in the claims.

Claims

1. A cliff ecological slope protection system, comprising a cliff (1), a plurality of plant planting holes (2) arranged on the cliff (1), a nutrient soil layer (3) being provided in the plant planting holes (2), and characterized in that: It also comprises a retaining layer (4) fixedly arranged in the plant planting hole (2) for covering the nutrient soil layer (3) and allowing plant roots to pass through, and a planting surface layer (5) covering the retaining layer (4).

2. The cliff ecological slope protection system according to claim 1, characterized in that: The retaining layer (4) comprises a first gauze layer (41), a second gauze layer (42), and a grass layer (43) arranged between the first gauze layer (41) and the second gauze layer (42); the first gauze layer (41) and the second gauze layer (42) are connected by sewing.

3. The cliff ecological slope protection system according to claim 2 is characterized in that: The thickness of the retaining layer (4) is 5 mm to 20 mm.

4. The cliff ecological slope protection system according to claim 2, characterized in that: The porosity of the first gauze layer and the second gauze layer are both 50% to 80%, and the pore diameters of the first gauze layer and the second gauze layer are both 10 mm to 30 mm.

5. The cliff ecological slope protection system according to claim 1, characterized in that: It also comprises a plurality of connecting nails (6) that pass through the planting surface layer (5), the retaining layer (4), the nutrient soil layer (3) and are connected to the bottom of the plant planting hole (2).

6. The cliff ecological slope protection system according to claim 1, characterized in that: A three-dimensional geonet is embedded in the planting surface layer (5).

7. The cliff ecological slope protection system according to claim 1, characterized in that: The bottom of the plant planting hole (2) is also provided with a water-retaining layer formed by paving water-absorbing resin particles.

8. The cliff ecological slope protection system according to claim 1, characterized in that: A water diversion block (7) is provided above the plant planting hole (2), which is connected to the cliff wall (1) and is used to guide rainwater on the cliff wall (1) toward the outside of the plant planting hole (2). The water diversion block (7) includes a water diversion slope (71) that is inclined toward the cliff wall (1) and inclined downward. The water diversion slope (71) extends to the highest position corresponding to the plant planting hole (2).

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