Open pit mine inner dump aquifer communication method

Abstract

The invention discloses an open pit mine inner dump aquifer communication method. The open pit mine inner dump aquifer communication method comprises the work procedures of plugging an original aquifer, building an artificial water-resisting layer, building an artificial aquifer, dredging the aquifer, conducting artificial water replenishing and the like. According to the open pit mine inner dumpaquifer communication method, the original aquifer is plugged with degradable plastics, water resource loss is reduced, and the safety of a pit is guaranteed; construction raw materials of the artificial water-resisting layer come from the mine lot, the construction difficulty is low, cost is low, and the waterproof effect is guaranteed; the aquifer adopts the manner that the middle part bulges, and it is avoided that natural settling of the inner dump causes the aquifer to be compacted, sink and even be blocked; the artificial aquifer is arranged into multiple strips, a water retaining wall is built to reduce the influence of the internal water pressure on the stability of the inner dump, artificial water replenishing according to regions in a later period can be achieved, and water cannot flow into the pit; the artificial water replenishing manner is adopted to accelerate communication between the artificial aquifer and the original aquifer of the inner dump, underground water circulation in the mine lot is guaranteed, pit water can be utilized, and pit water waste is reduced.

Description

technical field [0001] The invention relates to a method for penetrating water layers in coal mining, in particular to a method for penetrating aquifers in dump sites in open-pit mines, and belongs to the field of coal mining. Background technique [0002] Open-pit mining refers to a mining method in which the upper layer of covering is stripped and transported away, and the lower layer of coal resources is directly mined. The way of soil is internal discharge, and the formed dump is called internal dump. [0003] In the process of open-pit mining, the direct excavation of the soil (rock) layer destroys the shallow aquifer and water-resisting layer, and the deep-seated open-pit mining will also cause serious damage to the deep aquifer and water-resisting layer . The direct exposure of the aquifer at the end makes a large amount of water resources directly flow into the open pit, which is not only a waste of water resources, but also a threat to the safety of the mine. Aft...

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Problems solved by technology

[0004] For the problems existing in the above-mentioned prior art, the purpose of the present invention is to provide a method for penetrating the aquifer of the dump in the open-pit mine, to solve the waste of water resources in the open-pit mine, and to improve the stability of the dump in the open-pit mine, thereby Improve mining production safety

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