摘要
顶煤预破碎问题是坚硬厚煤层综合机械化放顶煤开采亟待解决的关键技术难题。本文介绍一种弱化坚硬顶煤的新技术——远离煤壁深孔预爆破与大直径空孔补偿相结合弱化顶煤技术。该技术已经在大同忻州窑矿试验和应用两年多。
Pre breaking top coal body is the key and difficult technique problem to be urgently solved in full mechanized top coal caving system of hard thicker coal seam. In the paper, we introduce a new kind of technque weakening top hard coal body-deep holes pre blast one taking hollow holes of large diameter as compensation space and being far away from faceline. The technique has be tested and applied for more than two years in Xinzhouyao colliery of Datong Mining Administration, and yield good results.
出处
《西安矿业学院学报》
北大核心
1996年第4期377-379,共3页
Journal of Xi'an University of Science & Technology
基金
煤炭部一般科研项目
关键词
采煤
顶煤
综合机械化采煤
深孔预爆破
top hard coal body deep holes pre blast far away from faceline hollow holes of large diameter mining pressure
