An internal drainage method and construction method of an open-pit mine with inclined base

Abstract

The invention discloses an internal drainage method and construction method of an open-pit mine with an inclined base. The inclined coal seam base is divided into several water collection areas, and water collection ditches are arranged along the inclined direction of the coal seam base in each water collection area, and along the Arrange a series of hydrophobic anti-skid ditch connected to the water collection ditch in the direction oblique to the coal seam base; at the same time, arrange reverse grooves along the coal seam base trend at the lower end of the step area, and construct anti-skid stops for soil discharge steps on the reverse grooves , and then discard the stripping material in the step area where the water collection ditch, the hydrophobic anti-skid ditch, the reverse groove, and the anti-slip stop of the soil discharge step have been formed. The invention solves the problems of small friction force in the slope base dump, slope stability affected by water erosion, low steps in the inner dump, and small internal displacement; and the anti-slip retaining platform of the dump is constructed with stripping materials and concrete, taking into account It improves economy and environmental protection, and is conducive to popularization.

Description

technical field [0001] The invention relates to an internal drainage method and a construction method of an open-pit mine with an inclined base, belonging to the field of open-pit mining. Background technique [0002] During the mining process of open-pit coal mines, a large amount of rock or soil will be stripped, and the stacking of the stripped materials will occupy a large amount of land, which will increase the mining cost of the enterprise and occupy precious land resources, which is contrary to the current sustainable development ideas. Therefore, for near-horizontal or inclined open-pit coal mines, the internal drainage method is often used to discharge the stripped objects, that is, the stripped rock and soil in the advancing direction of the open-pit mine are discharged to the rear goaf. The inner row of the open-pit mine shortens the transportation distance of the stripped material, reduces the land occupation of the stripped material, and can restore the open-pit...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an internal drainage method and construction method of an inclined base open-pit mine to solve the problems of low friction of the inclined open-pit mine base, slope stability affected by water erosion, low steps of the inner dump site, and small internal displacement.

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