摘要
本文针对大同焦煤一矿4#8501工作面的具体情况,对坚硬岩石深孔松动爆破以及顶板垮落步距进行深入分析,并结合现场实际数据进行超前深孔松动爆破参数设计,为今后的综采面超前强制放顶提供参考。
According to the specific situation of Datong Coal Mine 4#8501 working face, the parameter of the deep holes loose blasting and the caving step distance of hard roof were analyzed in this paper, combined with the actual data, design the advanced deep hole loose blasting parameters, which provide reference for the deep holes loose blasting overhead caving technology of the hard roof in fully mechanized face.
出处
《山东煤炭科技》
2015年第8期20-21,23,共3页
Shandong Coal Science and Technology
关键词
综采工作面
坚硬顶板
强制放顶
深孔松动爆破
fully mechanized working face
hard roof
overhead caving
long hole loose blasting
