Optimization design of layered mining under extra thick coal seam in No.2502 mining area of Yanbei Coal Mine
In order to further optimize the production layout of the mine,implement the measures of"one optimization,three reduc-tions",and green coal mining,improve the coal resource recovery rate,and solve the problems of unreasonable layout of the working face in the original design plan of the No.2502 mining area,as well as excessive reservation of isolated coal pillars such as triangular coal,the layout of the lower layered comprehensive mining working face in No.2502 mining area was optimized and designed,and a safe,fea-sible,green and energy-saving design optimization plan was proposed.This provides technical reference for the layout of working faces in other mining areas under the same occurrence conditions.
extra thick coal seamoptimization designone well and one sidebreaking the bottom
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维普
