River levee turf slope protection device with multi-layer structure

Abstract

The utility model discloses a river levee turf slope protection device with a multilayer structure, which comprises a river levee body, a turf slope protection structure covers the surface of the river levee body, and the turf slope protection structure comprises a base layer covering the surface of the river levee body and a nutrient layer covering the base layer. The turf slope protection structure and the hydrophobic structure are arranged, the hydrophobic structure is pre-buried on the river levee body, then the turf slope protection structure is laid on the river levee body, nutrition can be provided for the grass seed layer through the nutrient layer, normal growth of the grass seed layer is guaranteed, and when heavy rainfall occurs, due to the fact that straw is mixed in the nutrient layer, the nutrient layer is loose; the water permeability of the nutrient layer can be improved, the water permeability can be further improved through the base layer composed of the stones, water in the saturated soil of the river bank body can permeate into the drain pipe through the geotechnical cloth and is discharged into a river channel, and therefore the hydrophobicity of the turf slope protection structure is improved, and the situation that a large amount of rainwater is accumulated on turf to cause turf death is avoided.

Description

Technical Field

[0001] This utility model relates to the field of riverbank slope protection, and in particular to a riverbank turf slope protection device with a multi-layer structure. Background Technology

[0002] Slope protection refers to the various paving and planting methods used on slopes to prevent erosion. Turf slope protection is a common slope protection measure with several advantages. First, from a soil and water conservation perspective, the root system of turf can firmly hold the soil, reducing the possibility of soil being washed away by rainwater and effectively preventing soil erosion. Second, ecologically, turf provides habitats for numerous small animals and insects, contributing to the maintenance of biodiversity. Third, from an aesthetic point of view, a lush green turf slope protection makes the entire area look more vibrant.

[0003] Traditional turf slope protection structures mostly involve sowing grass seeds on the riverbank and then attaching non-woven fabric to the seeds to prevent them from being washed away during the rainy season. However, this structure has the following drawbacks in practical application: once the grass seeds have grown into a dense patch, rainwater quickly seeps into the turf soil during heavy rainfall. When the soil becomes saturated, rainwater can no longer seep in, leading to a large accumulation of water under the turf, which can cause the turf to die and become susceptible to pests and diseases. To address these shortcomings, we propose a multi-layered turf slope protection device for riverbanks. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a multi-layered riverbank turf slope protection device.

[0005] To address the problems existing in the prior art, this utility model adopts the following technical solution: a multi-layered riverbank turf slope protection device, comprising a riverbank body, the surface of which is covered with a turf slope protection structure, the turf slope protection structure comprising a base layer covering the surface of the riverbank body, a nutrient layer covering the base layer, a seed layer sown on the nutrient layer, a seed protection layer placed on the seed layer, and a soil protection layer placed on the seed protection layer, a limiting structure for fixing the turf slope protection structure is provided above the turf slope protection structure, and a drainage structure is provided between the riverbank body and the turf slope protection structure.

[0006] Preferably, the base layer is composed of pebbles.

[0007] Preferably, the nutrient layer consists of straw mixed with soil, and the seed layer consists of grass seeds.

[0008] Preferably, the seed protection layer is made of biodegradable nonwoven fabric.

[0009] Preferably, the retaining layer is made of galvanized wire mesh.

[0010] Preferably, the limiting structure includes a pre-embedded nail and a plurality of inserts that are equidistantly fixed on the surface of the pre-embedded nail.

[0011] Preferably, the surface of the riverbank body is pre-embedded with a sleeve for inserting nails.

[0012] Preferably, the drainage structure includes a drainage pipe buried on the surface of the riverbank body, multiple permeable holes arranged in a circumferential array on the surface of the drainage pipe, and geotextile wrapped around the surface of the drainage pipe.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. By setting up a turf slope protection structure and a drainage structure, the drainage structure is pre-embedded in the river embankment body, and then the turf slope protection structure is laid on the river embankment body. The nutrient layer can provide nutrients to the grass seed layer to ensure the normal growth of the grass seed layer. When there is heavy rainfall, the nutrient layer is relatively loose because it is mixed with straw, which can improve the permeability of the nutrient layer. The base layer made of stones can further improve the permeability. After the soil in the river embankment body is saturated, the water will seep into the drainage pipe through the geotextile and be discharged into the river channel, thereby improving the drainage of the turf slope protection structure and preventing rainwater from accumulating on the turf and causing the turf to die.

[0015] 2. By setting a limiting structure, before laying the turf slope protection structure, the sleeve needs to be pre-embedded in the river embankment body. After the turf slope protection structure is laid on the river embankment body, the pre-embedded nails are inserted into the sleeves, and then concrete is poured into the sleeves to fix the pre-embedded nails in the sleeves. The nails will pass through the turf slope protection structure and be inserted into the river embankment body, thereby fixing the soil layer. At the same time, the soil layer made of galvanized mesh can fix the soil particles on the river embankment body, which can prevent the soil on the river embankment body from being washed away by water flow when the grass seed layer germinates. On the other hand, the soil layer can provide additional support for the lawn, which can reduce the damage to the lawn caused by external forces such as people trampling on the lawn. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention. The illustrative embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an undue limitation. In the drawings:

[0017] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0018] Figure 2 This is a three-dimensional schematic diagram of the hydrophobic structure of this utility model;

[0019] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0020] Figure 4 This is a schematic diagram of the limiting structure of this utility model;

[0021] Figure 5 This is a side sectional view of the hydrophobic structure of this utility model.

[0022] The numbers in the diagram are: 10 Riverbank body, 20 Base layer, 21 Nourishing layer, 22 Grass seed layer, 23 Seed protection layer, 24 Soil protection layer, 30 Embedded nail, 31 Inserted nail, 32 Sleeve, 40 Drainage pipe, 41 Permeable hole, 42 Geotextile. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] Please see Figure 1-5 The present invention provides a technical solution: a multi-layered riverbank turf slope protection device, including a riverbank body 10, the surface of which is covered with a turf slope protection structure. The turf slope protection structure includes a base layer 20 covering the surface of the riverbank body 10, a nutrient layer 21 covering the base layer 20, a grass seed layer 22 sown on the nutrient layer 21, a seed protection layer 23 placed on the grass seed layer 22, and a soil protection layer 24 placed on the seed protection layer 23. The base layer 20 is made of gravel, the nutrient layer 21 is made of straw mixed with soil, the grass seed layer 22 is made of grass seeds, the seed protection layer 23 is made of biodegradable non-woven fabric, and the soil protection layer 24 is made of galvanized mesh.

[0025] First, a base layer 20 made of gravel is laid on the riverbank body 10. Then, a nutrient layer 21 made of straw mixed with soil is laid on the base layer 20. Next, grass seeds are sown on the nutrient layer 21. The nutrient layer 21 provides nutrients to the grass seed layer 22, ensuring its normal growth. Then, a seed protection layer 23 made of non-woven fabric is laid on the grass seed layer 22. The seed protection layer 23 protects the grass seeds and prevents them from being washed away by rainwater. Finally, a soil protection layer 24 made of galvanized mesh is laid on the seed protection layer 23.

[0026] See Figure 4 The turf slope protection structure is provided with a limiting structure above it to fix the turf slope protection structure. The limiting structure includes a pre-embedded nail 30 and a plurality of insert nails 31 that are fixedly installed at equal intervals on the surface of the pre-embedded nail 30. The surface of the river embankment body 10 is pre-embedded with a sleeve 32 for inserting the insert nails 31.

[0027] Before laying the turf slope protection structure, the sleeve 32 needs to be pre-embedded on the river embankment body 10. After the turf slope protection structure is laid on the river embankment body 10, the pre-embedded nail 30 is inserted into the sleeve 32. Then, concrete is poured into the sleeve 32, so that the pre-embedded nail 30 can be fixed in the sleeve 32. The nail 31 will pass through the turf slope protection structure and be inserted into the river embankment body 10, so that the soil protection layer 24 can be fixed.

[0028] The soil protection layer 24, which is made of galvanized mesh, can fix the soil particles on the riverbank body 10, thus preventing the soil on the riverbank body 10 from being washed away by water flow when the grass seed layer 22 germinates. On the other hand, the soil protection layer 24 can provide additional support for the lawn, which can reduce the damage to the lawn caused by external forces such as people walking on the lawn.

[0029] See Figure 2 and Figure 5 A drainage structure is provided between the river embankment body 10 and the turf slope protection structure. The drainage structure includes a drainage pipe 40 buried on the surface of the river embankment body 10, multiple permeable holes 41 arranged in a circular array on the surface of the drainage pipe 40, and geotextile 42 wrapped on the surface of the drainage pipe 40.

[0030] Before laying the turf slope protection structure, drainage pipes 40 need to be pre-buried in the river embankment body 10. When there is heavy rainfall, the nutrient layer 21 is relatively loose because it is mixed with straw, which can improve the permeability of the nutrient layer 21. The base layer 20, which is made of gravel, can further improve the permeability, allowing water to quickly infiltrate into the river embankment body 10. After the soil in the river embankment body 10 is saturated, the water will flow into the drainage pipes 40 through the permeable holes 41 after the geotextile 42 infiltrates, and then be discharged into the river channel, thereby improving the permeability of the turf slope protection structure and preventing rainwater from accumulating on the turf and causing the turf to die.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art based on the technical solution and concept of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-layered riverbank turf slope protection device, comprising a riverbank body (10), characterized in that: The surface of the river embankment body (10) is covered with a turf slope protection structure, which includes a base layer (20) covering the surface of the river embankment body (10), a nutrient layer (21) covering the base layer (20), a grass seed layer (22) sown on the nutrient layer (21), a seed protection layer (23) set on the grass seed layer (22), and a soil protection layer (24) set on the seed protection layer (23). A limiting structure that can fix the turf slope protection structure is provided above the turf slope protection structure, and a drainage structure is provided between the river embankment body (10) and the turf slope protection structure.

2. The riverbank turf slope protection device with a multi-layer structure according to claim 1, characterized in that: The base layer (20) is composed of stones.

3. The riverbank turf slope protection device with a multi-layer structure according to claim 1, characterized in that: The nutrient layer (21) is composed of straw mixed with soil, and the grass seed layer (22) is composed of grass seeds.

4. The riverbank turf slope protection device with a multi-layer structure according to claim 1, characterized in that: The seed protection layer (23) is made of biodegradable nonwoven fabric.

5. The riverbank turf slope protection device with a multi-layer structure according to claim 1, characterized in that: The protective soil layer (24) is made of galvanized wire mesh.

6. The riverbank turf slope protection device with a multi-layer structure according to claim 1, characterized in that: The limiting structure includes a pre-embedded nail (30) and a plurality of inserts (31) that are fixedly installed at equal intervals on the surface of the pre-embedded nail (30).

7. The riverbank turf slope protection device with a multi-layer structure according to claim 6, characterized in that: The surface of the riverbank body (10) is pre-embedded with a sleeve (32) for inserting a nail (31).

8. The riverbank turf slope protection device with a multi-layer structure according to claim 1, characterized in that: The drainage structure includes a drainage pipe (40) buried on the surface of the riverbank body (10), multiple permeable holes (41) arranged in a circular array on the surface of the drainage pipe (40), and geotextile (42) wrapped on the surface of the drainage pipe (40).

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