Abstract:
Aiming at the problem that mining at 5310 large mining height working face of Chengzhuang Coal Mine is seriously effected by collapse column with a detailed exploration, we clear the position and range of collapse column, find out the collapse column without water, we propose the feasible method for passing collapse column in large mining height working face. We pass collapse column by controlling the mining height, using shearer to directly cut gangue and vibration blasting, and the mining technology of shallow-frustum. The results show that the scheme for passing collapse column reduces moving workload, saves the cost, extends mining face continuous propulsion, improves the recovery rate of coal resources.