摘要
在煤矿的开采过程中,工作面初采顶板悬顶面积较大的问题一直制约着回采的顺利进行,通过常规经验方法并结合关键层的理论知识分析了深孔爆破的炮孔深度,为深孔爆破提供理论依据。
In the process of coal mining,the larger roof suspension at working face has always restricted the smooth progress of the stoping during the primary mining,so it has important significance to carry out deep-hole pre-splitting blasting.Based on the conventional empirical methods and combined with the key layer theoretical knowledge,the paper analyzes the deep hole blasting＇s hole depth,which provides a theoretical basis for the deep hole blasting.
出处
《煤矿安全》
CAS
北大核心
2013年第7期205-207,共3页
Safety in Coal Mines
关键词
初采
深孔爆破
关键层
炮孔深度
primary mining
deep hole blasting
key layer
depth of blast holes
