Strip mine waste dump with ecological step slope structure

Abstract

The invention discloses a strip mine waste dump with an ecological step slope structure. The strip mine waste dump comprises a designed waste dump and an ecological waste dump, wherein the ecological waste dump is divided into a plurality of layers of ecological steps; the first layer of ecological step is built firstly, then the width of a one-way road of a mining engineering vehicle and a drainage channel are built on the ecological step, and water is collected into water collecting wells built at intervals along the drainage channel by utilizing the set flowing water slope; and after the first layer of ecological step is built, the second layer of ecological step is continuously built on the first layer of ecological step along the inner edge of the drainage channel, and so on until the last layer of ecological step is built. The ecological steps are formed in a reverse dumping mode, the material compaction effect is good, the sedimentation is small, and the water retention effect is good; the ecological steps can be directly used for driving the vehicle, so that the surface soil layer coverage and ecological restoration construction are facilitated, and the water and soil conservation effect is good; and the drainage channel and the water collecting wells are matched to collect rainwater, so that on one hand, the erosion of rainfall to the waste dump is reduced, and on the other hand, the drainage channel and the water collecting wells can be used for subsequent reclamation irrigation of the waste dump, and the reclamation effect is improved.

Description

technical field [0001] The invention relates to an open-pit mine dump, in particular to an open-pit mine dump with an ecological step slope structure, belonging to the field of open-pit mining and ecological restoration. Background technique [0002] At present, the slopes of most open-pit mine dumps in China are formed by the natural rolling of the discarded materials from the upper surface of the dumped steps. The angle is closely related to the natural repose angle of the materials, and basically exceeds 30°. The slope of the dump site with a large angle is prone to slope instability, and there are problems such as difficulty in water and soil conservation during the reclamation process of the dump site, and poor rock-soil differentiation, which in turn affects mine production safety and ecological restoration. At the same time, when the natural repose angles of rock and soil are different, it will also cause uneven thickness of covering soil on the top and bottom of the ...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems existing in the above-mentioned prior art, the present invention provides an open-pit mine dump with an ecological stepped slope structure, which solves the problem that the slope angle of the open-pit mine dump is relatively large at this stage, which affects mine production safety and ecological restoration. question

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