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机构地区:[1]河北联合大学河北省矿业开发与安全技术重点实验室,河北唐山063009 [2]开滦集团有限责任公司,河北唐山063018
出 处:《中州煤炭》2012年第9期54-56,共3页Zhongzhou Coal
摘 要:开滦集团林南仓矿-650 m轨道石门是矿井南区开拓的关键通道,由北向南2次穿越各开采煤层,9煤至8-1煤段属典型的泥质软岩巷道,受深井大地压作用及小构造引水的影响,巷道变形严重,常规锚喷支护难以应对该类条件下的非线性变形。采用锚注及马蹄碹浇筑等联合支护手段,实现了该类巷道的稳定修复。In Linnancang Coal Mine of Kailuan Group Limited Liability Company, -650 m railway erossdrift is the key channel to the developing of mine's southern district. It has passed through each mining coal layer from north to south for two times. The segment from 9# coal seam to 8-1# coal seam is typical muddy soft rock roadway,which is affected by underground pressure effect in deep mine and small structures diversion, so deformation of roadway is very serious, and it is difficult to deal with these large nonlinear deformation for the routine bolt shotcrete supporting in this conditions. Combined supporting was used in roadway,including the methods of bolt-grouting and horseshoe arch pouring, and achieved the stable repair of this roadway.
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