Open-pit mining ecological loss reduction method

Abstract

The invention discloses an open-pit mining ecological loss reduction method. The method comprises the following steps that S10, geological layer information, soil information and ecological information of a mining area are acquired; S20, according to the early-stage planning and technology, the stripped surface soil and the rock-soil layer are subjected to mining, drainage and classified storage, and land occupation is reduced; stratum reconstruction is realized through logistics transportation and allocation, so that the reconstructed water-bearing stratum and the water-resisting stratum are close to the original stratum in property and are effectively connected with the surrounding original horizon; S30, when the pit of a strip mine is closed, residual discharged rock soil is discharged into the pit, and an artificial reservoir is built depending on the terrain; and S40, after the pit of the strip mine is closed, the landform and vegetation of the mining area are restored, and water storage irrigation devices are built cooperatively to improve the ecological stability of the area.

Description

technical field [0001] The invention relates to the field of open-pit mining and ecological restoration, in particular to an ecological damage reduction method for open-pit mining. Background technique [0002] Compared with underground mining, open-pit mining has the advantages of simple production process, low cost and large scale. The overlying aquifer, water-resisting layer, and surface ecology are subversively damaged due to the method of stripping the overlying strata of the resources and then exploiting them. At present, the ecological protection mode of natural restoration, artificial restoration or comprehensive restoration of dumps after mining is commonly used. These methods change the pre-mining morphology and landscape pattern of the surface, destroy the original stratigraphic sequence, and change the water resource cycle required by the ecology. It destroys the regional ecological structure and poses a threat to regional ecological security. Contents of the ...

AI Technical Summary

Problems solved by technology

The overlying aquifer, water-resisting layer, and surface ecology are subversively damaged due to the method of stripping the overlying strata of the resources and then exploiting them.

At present, the ecological protection mode of natural restoration, artificial restoration or comprehensive restoration of dumps after mining is commonly used. These methods change the pre-mining morphology and landscape pattern of the surface, destroy the original stratigraphic sequence, and change the water resource cycle required by the ecology. Destroy the regional ecological structure and pose a threat to regional ecological security

Images