安全高效通过68302工作面大断层探讨

Passing through the Giant Fault on 68302 Working Face Safely and Efficiently with Various Measures

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.