Plant slope protection partition construction method for preventing roadbed slope from being scoured

Abstract

The invention relates to the technical field of roadbed slope protection, and discloses a plant slope protection partition construction method for preventing roadbed slope erosion, which comprises the following steps: selecting a preset planting scheme based on the height of a roadbed and the construction season; when the height of the roadbed is smaller than 1.5 m, the roadbed slope is covered with planting soil, planting grids are drawn, undershrubs are transplanted or planted at nodes of the grids, and then lawn plants are sown in the grids; when the height of the roadbed is larger than or equal to 1.5 m, the roadbed slope is divided into an upper part and a lower part, lawn plants are planted in the upper area, planting grids are drawn in the lower area, undershrubs are transplanted or planted at nodes of the grids, and then the lawn plants are sown in the grids. The method is suitable for a soil filling roadbed and a roadbed side slope which is not larger than 3 m in height and is not provided with masonry protection, undershrubs and lawn plants are planted in a mixed and matched mode, slope surface soil is reinforced by means of the plant growth characteristic, the anti-scouring capacity of the roadbed side slope is improved, and meanwhile the effect of beautifying the road environment is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of roadbed slope protection, and in particular to a plant slope protection zoning construction method for preventing roadbed slope scouring. Background Art

[0002] For highway fill roadbed, when the fill height is ≤3m and there is no masonry protection on the roadbed slope, during construction in the rainy season or when heavy rainfall occurs after construction, the roadbed drainage system has insufficient anti-scouring capacity and rainwater can easily cause damage to the roadbed slope, affecting the safety of highway construction and operation. Summary of the invention

[0003] The present invention is made to solve the above technical problems, and its purpose is to provide a plant slope protection zoning construction method for preventing scouring of roadbed slopes, which can improve the scouring resistance of roadbed slopes.

[0004] In order to achieve the above object, the present invention provides a plant slope protection zoning construction method for preventing roadbed slope scour, comprising the following steps:

[0005] Select a preset planting plan based on the roadbed height and construction season;

[0006] When the roadbed height is less than 1.5 meters, cover the roadbed slope with cultivated soil, draw a planting grid, transplant or plant small shrubs at each grid node, and then sow lawn plants in each grid;

[0007] When the roadbed height is greater than or equal to 1.5 meters, the roadbed slope is divided into two parts, lawn plants are planted in the upper area, and a planting grid is drawn in the lower area. Small shrubs are transplanted or planted at each grid node, and then lawn plants are sown in each grid.

[0008] As an implementation method, when the roadbed height is greater than or equal to 1.5 meters, if the construction season is the dry season, the upper area of ​​the roadbed slope is covered with cultivated soil before planting lawn plants; when the roadbed height is greater than or equal to 1.5 meters, if the construction season is the rainy season, when planting lawn plants in the upper area of ​​the roadbed slope, first stack vegetation bags containing grass seeds in the upper area, and then fix the vegetation bags with bamboo strips or bamboo sticks or wooden wedges or corn stalks.

[0009] As an implementation mode, when the soil of the roadbed slope is clay, a loosening rake is used to trim the interface between the cultivated soil and the roadbed slope fill into a comb-tooth shape; when the soil of the roadbed slope is sandy, a flat rake is used to trim the interface between the cultivated soil and the roadbed slope fill into a sawtooth shape.

[0010] As an implementation mode, the small shrub is a perennial woody plant with a stem height of less than 0.5 m; the lawn plants include cool-season grasses and warm-season grasses.

[0011] As an implementation mode, when the roadbed height is less than 1.5 meters, the density of the lawn plants thereon is greater than the density of the lawn plants thereon when the roadbed height is greater than or equal to 1.5 meters.

[0012] As an embodiment, the upper and lower widths of the upper area are 0.5 meters to 0.75 meters.

[0013] As an implementation mode, the grid spacing of the planting grid is not less than the root diameter of the small shrubs.

[0014] According to the above description and practice, the plant slope protection zoning construction method for preventing erosion of roadbed slopes described in the present invention is suitable for fill roadbeds, roadbed slopes with a height of no more than 3 meters and no masonry protection. No supporting works are added. A mixed combination of perennial shrubs and lawn plants is planted, and the slope soil is reinforced by relying on the plant growth characteristics, thereby improving the anti-erosion ability of the roadbed slopes, while also having the effect of beautifying the road environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The present invention is a plan view of three planting schemes in a plant slope protection zoning construction method for preventing scour of roadbed slopes in one embodiment of the present invention.

[0016] Figure 2 for Figure 1 Vertical section view of .

[0017] Figure 3 The present invention is a flowchart of a method for constructing plant slope protection zones for preventing erosion of roadbed slopes in one embodiment of the present invention.

[0018] 1. Small shrubs

[0019] 2. Lawn plants

[0020] 3. Cultivated soil

[0021] 4. Planting bags

[0022] 5. Bamboo

[0023] 6. Planting Grid DETAILED DESCRIPTION

[0024] The exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the disclosure will be more comprehensive and complete and fully convey the concepts of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0025] like Figures 1 to 3 As shown, in this embodiment, a plant slope protection zoning construction method for preventing roadbed slope scouring is disclosed. The plant slope protection zoning construction method for preventing roadbed slope scouring mainly includes the following steps:

[0026] Step S1: Select a preset planting plan based on the height of the roadbed and the construction season.

[0027] Step S2, when the roadbed height is less than 1.5 meters, the roadbed slope is covered with cultivated soil 3, a planting grid 6 is drawn, small shrubs 1 are transplanted or planted at each grid node, and then lawn plants 2 are sown at each grid.

[0028] Step S3, when the roadbed height is greater than or equal to 1.5 meters, the roadbed slope is divided into an upper and lower part, lawn plants 2 are planted in the upper area, a planting grid 6 is drawn in the lower area, small shrubs 1 are transplanted or planted at each grid node, and then lawn plants 2 are sown in each grid.

[0029] The plant slope protection zoning construction method for preventing scouring of roadbed slopes is suitable for fill roadbeds, roadbed slopes with a height of no more than 3 meters and no masonry protection, and does not increase retaining works. It adopts a mixed planting of perennial small shrubs 1 and lawn plants 2, and relies on the growth characteristics of plants to reinforce the slope soil, improve the anti-scouring ability of the roadbed slope, and at the same time has the effect of beautifying the road environment.

[0030] As an implementation method, when the roadbed height is greater than or equal to 1.5 meters, if the construction season is the dry season, the upper area of ​​the roadbed slope is covered with cultivated soil 3 before the lawn plants 2 are planted; when the roadbed height is greater than or equal to 1.5 meters, if the construction season is the rainy season, when the lawn plants 2 are planted in the upper area of ​​the roadbed slope, firstly, a vegetation bag 4 containing grass seeds is stacked in the upper area, and then the vegetation bag 4 is fixed with bamboo pieces 5 or bamboo sticks or wooden wedges or corn stalks, so that the roadbed slopes that are higher in the dry season and rainy season can be adaptively protected. The bamboo pieces 5, bamboo sticks, wooden wedges, and corn stalks are all easily available, relatively cheap, and naturally degradable materials, and will not cause pollution to the environment while fixing the vegetation bag 4.

[0031] As an implementation method, when the soil of the roadbed slope is clay soil, a loosening harrow is used to trim the joint surface between the cultivated soil 3 and the roadbed slope fill soil into a comb-tooth shape; when the soil of the roadbed slope is sandy soil, a flat harrow is used to trim the joint surface between the cultivated soil 3 and the roadbed slope fill soil into a sawtooth shape. The bonding strength between the roadbed slope and the cultivated soil 3 can be improved according to different soil types.

[0032] As an implementation method, the small shrub 1 is a perennial woody plant with a stem height of less than 0.5m. While fixing the slope, its root system will not affect the roadbed; the lawn plant 2 includes cold-season grass and warm-season grass. According to the climate of the area where the roadbed slope is located, you can choose it yourself to improve the survival rate and life of the lawn plant 2. For example, during construction, cold-season grass is suitable for lawn plants 2 in the northern region, and warm-season grass is suitable for the southern region. In addition, when planting small shrubs 1 on the slope, it is advisable to select perennial woody plants with short stems and relatively developed root systems that are suitable for local growth. Among them, construction in the northern region needs to focus on drought and cold resistance.

[0033] As an embodiment, when the roadbed height is less than 1.5 meters, the density of the lawn plants 2 thereon is greater than the density of the lawn plants 2 thereon when the roadbed height is greater than or equal to 1.5 meters. Figure 1 As shown, when the roadbed height is less than 1.5 meters, it is covered with lawn plants 2. When the roadbed height is greater than or equal to 1.5 meters, it is divided into two parts, upper and lower areas, and different planting schemes are adopted. Therefore, the planting density of lawn plants 2 can be moderately reduced compared to when the roadbed height is less than 1.5 meters, which can improve the survival rate and lifespan of lawn plants 2.

[0034] As an implementation method, when the roadbed height is greater than or equal to 1.5 meters, the upper and lower widths of the upper area are 0.5 meters to 0.75 meters. The planting areas of the upper and lower parts can be reasonably allocated, combined with different planting plans for the upper and lower parts, so that the protection capacity can be optimized.

[0035] As an embodiment, the grid spacing of the planting grid 6 is not less than the root diameter of the small shrubs 1, which can ensure that adjacent small shrubs 1 will not affect each other and can all reproduce vigorously. The specific grid size can be adjusted according to the degree of humidity or dryness of the climate and the fertility of the soil.

[0036] In a specific embodiment, when the roadbed slope is less than 1.5 meters, slope protection is implemented according to the following steps: ① The joint surface between the cultivated soil 3 and the roadbed fill is trimmed into a comb or sawtooth shape; ② Evenly cover the cultivated soil 3 and draw a planting grid 6; ③ Transplant or plant small shrubs 1 at the grid nodes; ④ Sow lawn plants 2 in the grid.

[0037] When the roadbed slope is greater than or equal to 1.5 meters, during dry season construction, slope protection is implemented according to the following steps: ① Divide the slope into two parts, the upper part of which should be 0.5 to 0.75 m wide; ② Trim the interface between the cultivated soil 3 in the upper area and the roadbed fill into a comb or sawtooth shape, and evenly cover the cultivated soil 3; ③ Trim the upper and lower parts of the slope to the same plane; ④ Draw a planting grid 6 in the lower area; ⑤ Transplant or plant small shrubs 1 at the grid nodes; ⑥ Sow lawn plants 2 in the upper area and in the grid.

[0038] When the roadbed slope is greater than or equal to 1.5 meters, during the rainy season, slope protection is implemented according to the following steps: ① Divide the slope into two parts, the upper part is stacked with vegetation bags 4 containing grass seeds, and fixed with bamboo pieces 5, bamboo sticks or corn stalks; ② Trim the upper and lower parts of the slope to the same plane; ③ Draw a planting grid 6 in the lower area; ④ Transplant or plant small shrubs 1 at the grid nodes; ⑤ Sow lawn plants 2 within the grid.

[0039] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A method for constructing plant slope protection zones to prevent roadbed slope scour, characterized in that: include: Select a preset planting plan based on the roadbed height and construction season; When the roadbed height is less than 1.5 meters, cover the roadbed slope with cultivated soil, draw a planting grid, transplant or plant small shrubs at each grid node, and then sow lawn plants in each grid; When the roadbed height is greater than or equal to 1.5 meters, the roadbed slope is divided into two parts, lawn plants are planted in the upper area, and a planting grid is drawn in the lower area. Small shrubs are transplanted or planted at each grid node, and then lawn plants are sown in each grid.

2. The construction method according to claim 1, characterized in that: When the roadbed height is greater than or equal to 1.5 meters, if the construction season is dry season, the upper area of ​​the roadbed slope should be covered with cultivated soil before planting lawn plants; When the roadbed height is greater than or equal to 1.5 meters, if the construction season is the rainy season, when planting lawn plants in the upper area of ​​the roadbed slope, first stack vegetation bags containing grass seeds in the upper area, and then fix the vegetation bags with bamboo strips or bamboo sticks or wooden wedges or corn stalks.

3. The construction method according to claim 2, characterized in that: When the soil of the roadbed slope is clay soil, a loosening harrow is used to trim the joint surface between the cultivated soil and the roadbed slope fill into a comb-tooth shape; When the soil of the roadbed slope is sandy soil, a flat harrow is used to trim the joint surface between the cultivated soil and the roadbed slope fill into a serrated shape.

4. The construction method according to claim 1, characterized in that: The small shrubs are perennial woody plants with a stem height of less than 0.5 m; The lawn plants include cool-season grasses and warm-season grasses.

5. The construction method according to claim 1, characterized in that: When the roadbed height is less than 1.5 meters, the density of the lawn plants thereon is greater than the density of the lawn plants thereon when the roadbed height is greater than or equal to 1.5 meters.

6. The construction method according to claim 1, characterized in that: The upper and lower widths of the upper area are 0.5 m to 0.75 m.

7. The construction method according to claim 1, characterized in that: The grid spacing of the planting grid is not less than the root diameter of the small shrubs.

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