Erosion-proof energy dissipation system used for net hanging external-soil spray seeding protection layer

Abstract

The invention discloses an anti-scour energy dissipation system for hanging netting soil spraying protection layer. The energy dissipation system is composed of multiple parallel energy dissipation sills, and each layer of energy dissipation sill is composed of a plurality of energy dissipation devices at the head and tail. The energy-dissipating device is positioned through the supporting anchor rod, and the horizontal baffle is used to extend out of the slope to form an energy-dissipating sill, and the outriggers and iron wires are used to bind and fix the horizontal baffle. The energy dissipating device realizes the secondary utilization of waste wood formwork, saves energy, protects the environment, and is low in cost, and can effectively improve the anti-scouring ability and stability of the protective layer of hanging net soil spraying. In addition, the energy dissipating device, galvanized barbed wire, and support anchors can be connected as a whole to further improve the stability of the protective layer of sprayed soil sprayed with hanging nets. It is also possible to adjust the longitudinal position of the horizontally adjacent support anchors to make the energy dissipation device form a horizontal drainage channel to intercept and divert the runoff on the slope to further improve the anti-scour performance of the hanging net soil spraying protective layer.

Description

technical field [0001] The invention relates to the field of slope protection by spraying soil with hanging nets, in particular to an anti-scouring energy dissipation system for a protective layer of spraying soil with hanging nets. Background technique [0002] As an effective spraying planting technology, spraying soil with hanging nets has been widely used in biological slope protection of highway slopes. The general construction sequence of hanging net guest soil spraying is to set anchor rods first, hang galvanized wire mesh, and then spread soil. When the vegetation completely covers the slope, it can effectively withstand the erosion and damage of heavy rain and slope surface runoff, ensuring that the slope Stablize. However, the following problems often occur in the actual construction of slope protection by alien soil spraying: First, there is a contradiction between the construction period and the vegetation period. Damaged by scouring, some grass species were lo...

AI Technical Summary

Problems solved by technology

However, the following problems often occur in the actual construction of slope protection by alien soil spraying: First, there is a contradiction between the construction period and the vegetation period. Damaged by scouring, some grass species were lost, resulting in low vegetation coverage, further causing erosion and shedding of the guest soil layer; second, after experiencing special growth stages such as overwintering and summering, some of the slope plants degenerated, resulting in the direct exposure of some guest soil layers In the air, after a period of weathering and rain erosion damage, the guest soil layer is completely peeled off, which is extremely unfavorable to slope stability.

[0004] One is to cover non-woven geotextiles. This method can reduce the scouring damage of rainwater to a certain extent in the early stage, but when the slope length is long and the rainstorm continues, it still cannot effectively prevent the scouring damage of slope runoff

[0005] The 2nd, adopt three-dimensional net to replace galvanized barbed wire, and this method uses slope to be less than 60 ° generally, compared with hanging barbed wire, the scope of use of guest soil spraying is small, and cost is high; A kind of anti-scouring substrate layer slope protection is provided in the Chinese patent CN100393948C specification method, but its applicable slope is less than 50°, not suitable for high and steep slopes

[0006] The third is to use it in combination with other masonry structures such as frame beams. This method requires a large amount of masonry materials, which will cause great damage to the natural ecological environment and landscape along the road, and the cost is high

But at the same time, the number of waste wood formwork is also increasing rapidly. How to reuse waste wood formwork has attracted more and more attention and discussion. At present, the use of waste wood formwork is mainly used to make green belt edge decoration, environmental protection garbage bins, etc. , but there are not many studies on its application in slope protection

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