强膨胀型软岩巷道支护技术研究
China Coal(2013)
Abstract
泥质岩体的膨胀软化是造成巷道变形失稳的重要原因,采用SEM、TEM和XRD等现代化分析测试手段,查明了林南仓矿-650m石门巷道围岩的微观弱化机理,结合巷道支护设计的关键点分析,确定采用双层布筋混凝土浇筑技术为主的联合支护进行修复施工,较好解决了煤9至煤8间高蒙脱石强膨胀型围岩巷道稳定支护与安全施工。
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Key words
concrete pouring,roadway support,intensive support,montmorillonite,expansive soft rock
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