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

作　　者：王学奎[1] 

机构地区：[1]国投新集能源股份有限公司新集二矿,安徽淮南232181

出　　处：《煤炭技术》2006年第5期54-56,共3页Coal Technology

摘　　要：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.

关 键 词：Π型钢 炮采放顶煤 大倾角 

分 类 号：TD823[矿业工程—煤矿开采]