Structure and method for soil conservation and water storage of flat land type waste dump

Abstract

The invention discloses a structure for soil conservation and water storage of a flat land type waste dump. The structure comprises a soil stone pile body, wherein the soil stone pile body comprises aslope top, a slope and a slope toe from top to bottom, the edge of the slope top is provided with a water retaining surrounding ridge, the water retaining surrounding ridge surrounds one circle alongthe edge of the slope top, a water storage area is formed in the water retaining surrounding ridge, a plurality of water dividing ridges are arranged in the water storage area, and the water dividingridges divide the water storage area into a plurality of water dividing grids. The invention also discloses a method for soil conservation and water storage of the flat land type waste dump. The structure and the method for soil conservation and water storage of the flat land type waste dump provided by the invention have the advantages of soil conservation and water storage, good ecological restoration effect and favorable environmental protection.

Description

technical field [0001] The invention relates to the field of ecological restoration of spoil grounds, in particular to a structure and a method for soil conservation and water storage of flat land spoil grounds. Background technique [0002] Flat-land spoil sites are mostly found in abandoned soil and rock piles in development and construction projects such as roads, railways, underground mines, etc., and are mostly set in areas with relatively gentle surrounding terrain, with small confluence areas and relatively gentle flow rates. Most of the flat land type spoil sites are earth-rock mixtures, the volume of a single spoil is less than 200,000 m3, and the stacking height is less than 15 meters. The stacking process is relatively simple, and its natural repose angle is small, between 30 and 35 degrees, stable sex is better. Currently, the ecological restoration technology adopted for the flat land type spoil site is relatively simple, usually planting trees and grass after ...

AI Technical Summary

Problems solved by technology

It takes a certain amount of time for the plants planted to grow after filling the soil. Before the planted plants have fully exerted their water and soil conservation effects, in the rainy season, the erosion of rainwater will cause a large amount of soil nutrients and water on the slope top and side slope of the flat land type spoil site. Loss, the soil after the loss of nutrients and water cannot sustain the growth of planted plants; due to the erosion of rainwater, a large amount of rainwater on the top of the slope will flow down with the slope to form gullies, and the density of erosion trenches will increase with rainfall, and the erosion gullies The length and depth of the slope will also increase, and the amount of water and soil loss will also increase with the increase in the number, length and depth of erosion trenches, and the grass coverage rate will decrease year by year; the soil washed by the rain will flow down from the foot of the slope to the abandoned On the ground outside the soil dump, and piled up on the ground, the slope expands, increasing the occupied area of ​​the spoil dump, and causing damage to the surrounding environment again

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