高瓦斯留顶煤巷道过断层群联合支护技术研究

Research on Combined Supporting Technology of High Gas Coal Roof Roadway Crossing Fault

针对大同煤矿集团大同矿区云冈矿高瓦斯留顶煤掘进巷道过断层群顶板极易破碎问题,严重影响了巷道的正常使用和工作面正常回采,通过现场观测与理论分析相结合的方式,提出了以钢梁棚、锚杆锚索、马丽散固化顶板的联合支护与探巷等施工工艺,有效解决了高瓦斯留顶煤掘进巷道过断层群中顶板极易破碎、瓦斯管理、探巷等难题。

Datong Coal Mine Group in Yungang Mine for high gas coal roof roadway crossing fault group roof is easy broken, seriously affected the normal use and roadway of mining, through on-site observation, a combination of theoretical analysis, put forward by stell shed, anchor rope, steel Mali powder curing roof joint supporting and exploration lane construction technology, an effective solution to the high gas coal roof roadway crossing fault group in the roof is easy broken, gas management,exploration lane problem.