摘要
突出煤层岩巷掘进防止误揭煤是突出矿井的一大攻关难题。根据龙山煤矿的基本情况,对几种防止误揭煤技术进行了对比,详细叙述了上下山掘进利用间隔40 m的躲避硐室钻探顶底煤层防止误揭煤的设计、技术、方法及意义。
Mistaken exposing coal in rock drift driving is a tackle key problem. This article introduced the basic situation of Longshan Coal Mine, and several methods of mistaken exposing coal prevention were compared. This article also described the design, technology, method and significance on mistaken exposing coal prevention by drilling holes in roof and floor coal seam in 40 meters internal manholes during the rise and dip driving.
出处
《中州煤炭》
2009年第3期72-73,共2页
Zhongzhou Coal
关键词
岩巷
掘进
躲避硐室
钻探
误揭煤
rock drift
driving
manhole
drilling
mistaken exposing coal
