Technology for treating construction dreg site and side slope accumulation with vetiver grass

Abstract

The invention discloses a technology for treating a construction dreg site and a side slope accumulation with vetiver grass. The method comprises the following steps: leveling the slope tops of the construction dreg site and the accumulation according to a certain gradient; backfilling planting soil on the slope tops after leveling; grading the slope surfaces and dressing; arranging a medium platform between the slope surfaces; forming transverse drainage ditches in the side edges close to the slope tops and the bottom of the slope surface at each grade; forming longitudinal drainage ditches along the ridges and valleys in order to connect the transverse drainage ditches to form a passageway; arranging concrete grid beams on the slope surfaces if the angles of the slope surfaces are not less than 45 degrees; planting vetiver grass in gaps of the grid beams or the slope surfaces without the grid beams, wherein the planting density of the vetiver grass is that the plant spacing is 12cm, the line spacing is 100cm, and 3 to 5 plants form one clump; planting crops in the slope tops and the medium platform. The technology has the beneficial effects that the dreg site treatment costs less, the water and soil conservation effect is good, and the ecological restoration can be achieved.

Description

technical field [0001] The invention belongs to the technical field of traffic engineering and water conservancy project slag field and side slope accumulation, and relates to a technology for treating engineering slag field and side slope accumulation by using vetiver grass. Background technique [0002] In the construction of traffic engineering, tunnel excavation construction will produce a large amount of waste slag, which will be piled up intensively to form slag yard and loose accumulation body. Similarly, large-scale stone quarries are often required in the construction of water conservancy projects. The topsoil, gravel, overburden stripped materials and useless materials stripped during the mining process of the stone quarry are accumulated to form a slag yard. As most of the waste slag is stacked naturally, the amount of slag is large, and the slag body has not been rolled, forming an exposed loose accumulation slope. The slope is in a critical state, and it is very...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a technology for utilizing vetiver to control engineering slag yards and slope deposits, which solves the problem that the traditional treatment method uses concrete to build a retaining wall as a whole, which has high cost and poor soil and water conservation effect, and cannot play a role The problem of ecological restoration

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