摘要
杜儿坪矿北三68302工作面在回采过程中,遇到一条落差H为3.0m～3.1m、横贯工作面正副巷的大断层。该矿采取了沿断层面掘送探巷提前支护断层破碎带顶板、工作面预挑顶、煤壁注浆等手段,安全高效地回采,通过了该大断层。
In the course of stoping,there is a giant fault with fault throw of 3.0 m～3.1 m traversing 68302 working face of Du＇erping Coal mine.And Du＇erping Coal mine adopt various measures such as pre-supporting the fault broken roof along fault surface,pre-roof-brushing on working face,and grouting on coal wall,etc.,passing through the giant fault safely and efficiently.
出处
《科技情报开发与经济》
2010年第24期222-224,共3页
Sci-Tech Information Development & Economy
关键词
过断层技术
方案选择
煤炭开采
technique for passing through fault
scheme selection
coal mining
