摘要
针对某煤矿Ⅱ61采区Ⅱ6119工作面开切眼、极易离合复合顶板且沿空掘进,采取了综合掘进机切割、沿空留设4.6m窄煤柱、锚杆支护施工作业线,在保证巷道支护效果和安全的前提下,成功取得了煤巷导硐法、大断面、沿空锚杆支护效果。
in a coal mining area of 61 II 6119 working face cut open, easy clutch and composite roof roadway driving along gob, adopt comprehensive tunneling machine cutting, reuesed 4.6m narrow coal pillar and supporting construction of the anchor line, to ensure the effect of roadway support and security under the premise of success pilot tunnel method, coal roadway with large section, the effect of the air anchor.
出处
《煤矿现代化》
2017年第2期33-35,共3页
Coal Mine Modernization
关键词
极易离合复合顶板
窄煤柱
掘进机
导硐法
锚杆支护
设计方法
extremely easy clutch composite roof
narrow coal pillar
road-header
pilot tunnel method
bolt support
design method
