Vegetation slope protection structure for arid area high-steep spray sowing slope

Abstract

The invention discloses a vegetation slope protection structure for an arid area high-steep spray sowing slope and a construction method of the vegetation slope protection structure. The vegetation slope protection structure is high in stability and water retention. The vegetation slope protection structure for the arid area high-steep spray sowing slope comprises at least one set of slope protection assemblies arranged on the spray sowing slope. The slope protection assemblies comprise slope protection bags, slope protection nets and anchor rods. The slope protection bags are filled with a planting matrix blended with grass seeds, the slope protection bags are placed on the slope face of the spray sowing slope, and impermeable layers are arranged on the inner surfaces, close to the lower side of the slope face, of the slope protection bags. The outer surfaces of the slope protection bags are wrapped by the slope protection nets, and the anchor rods are anchored in the spray slowing slope and fix the slope protection nets wrapping the slope protection bags to the slope face of the spray sowing slope. The slope protection bags are wrapped by the slope protection nets and anchored by the anchor rods, and stability is very good; and the planting medium with which the slope protection bags are filled meets soil conditions for plant growth, and the impermeable layers are arranged in the slope protection bags, so that the vegetation slope protection structure has good water retention, and the water requirements of plant growth are met.

Description

technical field [0001] The invention belongs to the field of slope protection, and in particular relates to a planting slope protection structure for high and steep spray-mixed slopes in arid areas and a construction method thereof. Background technique [0002] A high and steep slope refers to a slope with a soil slope height greater than 20m to less than 100m or a rock slope height greater than 30m to less than 100m, and a slope greater than 60°. In the process of infrastructure construction such as transportation, mining, water conservancy and municipal facilities, for unstable high and steep slopes, it is necessary to adopt large-scale hanging nets and spray mixing (spray mixing refers to the construction method of spraying and pouring fine stone concrete with a pressure spray gun) and other measures. However, the concrete slope formed after spraying does not have the basic material conditions required for plant growth, and also isolates the water and soil conditions fo...

AI Technical Summary

Problems solved by technology

These measures are for the attachment or laying of plant growth substrates on the existing spray-mixed slopes, but such measures are mainly applicable to slopes with a slope ratio not steeper than 1:0.75

For high and steep spray-mixed slopes, due to the steepness of the slope, if the above-mentioned vegetation slope protection measures are used for slope protection, not only the cost is very high, but also the sprayed substrate will usually slide down the slope under the action of gravity, which is difficult Covered on the spray-mixed slope; even if the spray protection is successful, the substrate layer formed by spraying is often very thin, with very poor stability and water retention. It is difficult to meet the requirements of long-term growth of plants, especially for the restoration of the ecological environment of high and steep spray-mixed slopes in arid areas

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