林南仓矿软岩巷道壁后充填支护技术  

Soft Rock Roadway Backfilling Support Technology in Linnancang Coal Mine

作　　者：浑宝炬[1,2] 陈晓坡[1,2] 

机构地区：[1]河北联合大学矿业工程学院,河北唐山063009 [2]河北省矿业开发与安全技术重点实验室,河北唐山063009

出　　处：《煤矿安全》2014年第2期123-126,共4页Safety in Coal Mines

摘　　要：通过对林南仓矿-650 m水平轨道石门变形破坏机理的研究,发现巷道变形破坏主要是由于围岩岩性弱化,使支护区域发生结构性失稳,巷道变形严重。基于此,设计出了壁后充填的巷道支护方式,通过FLAC3D模拟计算,该支护方式能很好地控制帮顶破碎区,将巷道围岩的应力场和位移场趋于均匀化,控制了围岩的破碎大变形。Through the deformation failure mechanism study of the - 650 m level track cross - cut in Linnancang Coal Mine, the road- way deformation and failure of surrounding rock is mainly due to the composition of clay minerals, the structural instability in supporting region. On this basis, the study designs a backfilling support way. Through the FLAC3D simulation calculation, the supporting method can well control the broken zone of roadway surrounding rock, the stress field and displacement field tends to equalization, and can well control large deformation of the broken surrounding rock.

关 键 词：软岩巷道 变形机理 壁后充填 数值模拟 巷道支护 巷道变形破坏 结构性失稳 

分 类 号：TD353[矿业工程—矿井建设]