Cross-stepped type slope surface treatment method for mine dump

Abstract

The invention discloses a cross-stepped type slope surface treatment method for a mine dump. The method comprises the following steps that a slope surface A of the mine dump is trimmed to make the overall slope gradient less than 50 degrees; a staggered stepped structure is arranged on the slope surface A of the mine dump, specifically, at least two groups of multiple rows of arc-shaped steps withthe middles arched upwards are dug from the slope top to the slope bottom in sequence, and one ends of the two groups of multiple rows of arc-shaped steps are arranged in a one-to-one correspondenceand mutually-staggered mode; maize straw or reed straw subjected to soaking and rolling is laid on the bottoms of arc-shaped containing grooves to form straw layers; cultivation sheet bodies are sequentially laid from arc-shaped steps N close to the slope bottom to arc-shaped steps I of the slope top; and shrubs are transplanted on the table boards at the two ends of a plurality of arc-shaped containing grooves. According to the method, vegetation coverage of the mine dump can be quickly recovered, water and soil can be effectively kept, natural disasters can be avoided, and certain washing treatment can be carried out on heavy metal-polluted soil.

Description

technical field [0001] The invention relates to the technical field of water and soil conservation and ecological restoration, in particular to a cross-step slope treatment method for mine dumps. Background technique [0002] The development and utilization of mine mineral resources has effectively promoted the development of the national and local economy and society, but a large amount of spoil is produced in the process of mineral resource development, and a series of large-scale dumps are formed. Loss is a prominent ecological and environmental problem in the process of mineral resource development and construction. In addition, because the mine spoil contains a lot of gravel, its water holding capacity is poor, and its nutrient content is low. Although the soil of the spoil platform is mechanically compacted, the slope soil is loose and lacks the cohesion between natural soil particles. Poor erosion and anti-scourability; the spoil is artificially piled up, with large ...

AI Technical Summary

Problems solved by technology

For a long time, due to the lack of effective governance responsibility system and vegetation restoration model, the above-mentioned serious soil erosion, geological disasters and other ecological and environmental problems have occurred, and soil pollution and water pollution have been caused, affecting the social stability around the mine and the local people. normal production and life and physical health, etc.

Images