深部软岩巷道支护控制对策研究  

Research for Support and Control Strategies of Deep and Soft Rock Roadway

作　　者：刘红旗[1] 刘建庄[1,2] 郭立稳[1] 谷守云 董可第 

机构地区：[1]华北理工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：《煤炭技术》2017年第2期41-43,共3页Coal Technology

基　　金：国家自然科学基金资助项目(51374089);河北省高校科学研究项目(Z2003144)

摘　　要：针对林南仓矿-650 m轨道石门巷道围岩破碎软弱、长期流变、底鼓、顶板下沉和两帮内挤严重的问题,为提高巷道围岩支护强度,保障巷道的正常生产需求,设计采用反拱底梁+壁后充填+注浆支护方式对巷道进行支护加固。通过FLAC^(3D)对支护设计进行了模拟,并对模拟结果进行了深入的分析,设计在轨道石门进行了工程实践,经过后期的表面收敛观测表明:反拱底梁+壁后充填+注浆加固的支护技术对两帮严重内挤、顶、底收敛量大等巷道失稳问题具有显著的效果,对维持巷道整体稳定性具有很大的作用。For the serious problem of roadway broken weak, long-term evolution, floor heave, roof subsidence and the both sides in the crowded in the -650 m track shimen of linnancang mine. In order to improve the supporting strength of the roadway, ensure the normal needs of the production activities of the roadway. Designed with an inverted arch bottom beam ＋ backfilling support ＋ grouting support to reinforcement and support the roadway. By means of numerical simulation FLAG3D analyze the support effect, combine the engineering practice and the observation of convergence surface. The results show the support technology can effectively control the surface deformation of the roadway, maintaining the overall stability of the roadway.

关 键 词：软岩支护 变形 壁后充填 数值模拟 

分 类 号：TD353[矿业工程—矿井建设]