Water-preserved mining method

Abstract

The invention discloses a water-preserved mining method, which comprises the following steps of: performing geological survey in a mining region to obtain geological parameters; calculating water-preserved mining condition parameters according to the geological parameters; calculating underground water distribution trend data according to the geological parameters; determining the mining sequence of each block in the mining region according to the water-preserved mining condition parameters and the underground water distribution trend data; and determining the mining sequence of each working surface in each block according to the water-preserved mining condition parameters and the underground water distribution trend data. Due to the adoption of the water-preserved mining method disclosed by the invention, the geological and hydrogeological conditions of the mining region can be accurately explored, and the situations of coal thickness variation, an overlying rock structure and the like are comprehended; and different mining ways and mining parameters are adopted specific to different geological conditions, so that the influences of coal mining on underground water resources and the ecological environment are reduced.

Description

technical field [0001] The invention relates to the geological mining technology of the aquifer, in particular to a water conservation mining method. Background technique [0002] The surface ecological environment in some areas rich in coal resources is very fragile, and the phreatic water near the shallow coal seam is easily lost due to the impact of mining, which will lead to further deterioration of the environment. key security technologies. [0003] The research shows that the mining of the shallow coal seam makes the roof breakage directly affect the surface, the roof breakage angle is large, the surface subsidence is fast, and the incoming pressure is obvious and difficult to control. However, in terms of water resources protection in mining, there are very few research results, and no mining concepts and mining methods related to water conservation mining have been clearly proposed so far. [0004] The traditional mining method is basically "harvesting first and t...

AI Technical Summary

Problems solved by technology

[0005] In the past, before coal mining, it was not possible to accurately detect its internal geological structure and grasp the changes in coal thickness and the structural conditions of the overlying strata. Therefore, coal mining will lead to damage to water resources and ecological environment

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