Shallow coal reservoir retention method and its application

摘要

The present invention discloses a water retention mining method of “five-three zones-both divisions” and analyzes the data of mining engineering and hydrogeological characteristics, so that the figure of rock cover type, the contour map of the thickness of the rock mass Determine the aquifer division map of the aquifer, the contour map of the thickness of the non-aquifer and the contour map of the coal seam thickness (abbreviated as "five figure"), and different rock cover based on "five figure" Calculate the height of collapse zone, permeable fracture zone and protective zone (abbreviated as “three zones”) in full mining of the coal seam of the division, and also the thickness of the bedrock, the thickness of the non-aquifer and the aquifer Along with the characteristics of aquifers, the classification of the impact of coal mining on groundwater and the applicability classification of retained water mining technology (abbreviated as “both categories”) will be determined. The method provides a novel, full and systematic research method for water retention coal mining, which makes the water retention coal mining research process more standardized, practical, simple to operate, easy to understand and promote Is the method.