π型钢炮采放顶煤在复杂地质条件下的开采

Mining of Blasting Top-coal Caving Face with π-shape Steel Under the Complicated Geological Structure

新集二矿在大倾角、复杂地质条件下π型钢单体支柱炮采放顶煤开采过程中,总结积累了一套在大倾角、地质构造复杂、几何形状规则的工作面回采技术的处理经验,对同类条件下炮采放顶煤开采具有借鉴意义。

A series of handling experiences of the application of blasting top - coal caving face with single hydraulic prop in the complicated geological structure coal face with big tilt angle and regular shape are summarized in the No. 2 coal mine of the State - Run Xinji Energy Share Co Ltd. These experiences can be rationally used to the similar conditions.