Ecological restoration method for mine slope

Abstract

The invention discloses an ecological restoration method for a mine slope. The ecological restoration method comprises the steps of slope stability analysis, retaining wall supporting, drainage system arrangement, blocking net laying, green manure plant planting, regular inspection, maintenance and the like. A retaining wall structure is designed according to a slope stability coefficient, a masonry retaining wall is built on the outer side of each stage of platform, a planting groove is formed in the inner side of each stage of platform. and the planting grooves are backfilled with planting soil. In order to prevent potential safety hazards caused by falling of pumice stones, a slope surface is cleaned and strictly checked, and dangerous rocks and the pumice stones are removed. Grass seeds such as alfalfa grass, ryegrass, bluegrass, festuca arundinacea, astragalus adsurgens pall, amorpha fruticosa and the like are sowed between tree rows, manual sowing is adopted, the sowing density is about 30 g/m<2>, and proper compaction is conducted after sowing. After a restoration project is finished, the retaining wall is reinforced, a metal blocking net is repaired, a drainage ditch is cleaned and defective green plants are supplemented in the later period. The soil, vegetation and biological conditions of a mine area can be remarkably improved, and the ecological function of a mine is restored.

Description

technical field [0001] The invention belongs to the field of ecological restoration, and in particular relates to a method for ecological restoration of mine slopes. Background technique [0002] As the demand for ore resources continues to increase, the long-term disorderly quarrying has led to the destruction of the ecological environment of the mine, causing a series of natural disasters such as soil erosion, landslides, and mud-rock flows. Therefore, the restoration of the ecological environment of quarries has increasingly become one of the issues of general concern to the society. After a long period of over-exploitation in mines, geological instability usually occurs, and there are safety hazards such as mountain collapses; secondly, the vegetation and soil microorganisms on the slopes of mines have been destroyed, and soil animals have the ability to decompose dead branches and residual branches. It can not only improve the fertility of the soil, but also help soil ...

AI Technical Summary

Problems solved by technology

However, this method is suitable for relatively gentle soil slopes, and due to the poor growth of plants in the early stage of construction, the artificial soil matrix has limited anti-scourability, and it is difficult to resist heavy rainfall erosion. Even if techniques such as vegetation blankets are used to assist in improving the anti-scourability, However, due to the thin artificial soil layer, it is difficult to resist the seasonal drought conditions of continuous high temperature in the original slope conditions such as soil, stone or stone, which will affect the growth of plants.

[0004] Therefore, according to construction management experience, it is found that the applicability of each process to rock conditions, soil composition, slope, and rain and heat conditions is different.

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