极弱胶结泥岩大变形巷道联合支护数值模拟  

Numerical Simulation for Combined Support of Large Deformation in Road Way Very Weak Cementation Mudstone

作　　者：李伟[1,2] 乔卫国[1,2] 林登阁[1,2] 李豪[1,2] 

机构地区：[1]山东科技大学土木工程与建筑学院,山东青岛266590 [2]山东省土木工程防灾减灾重点实验室,山东青岛266590

出　　处：《煤矿安全》2016年第8期226-229,共4页Safety in Coal Mines

基　　金：国家自然科学基金资助项目(51174128);教育部新世纪优秀人才支持计划资助项目(NCET-07-0519)

摘　　要：针对查干淖尔一号井所存在的破坏问题,运用理论分析、室内实验、现场监测、数值分析相结合的多种研究方式,去揭示其发生大变形破坏的原因,并借助有限元数值模拟软件MIDAS/GTS对巷道不同的支护方案进行探究,最终得出锚杆+注浆圈+顶、底板锚索+钢架+喷衬对控制巷道的大变形具有显著作用。In view of failure problems of Chagannaoer No.1 well,according to the methods of theoretical analysis,lab experiments,field monitoring and numerical analysis,combined with a variety of research methods,we reveal the causes of large deformation and failure; and with the help of finite element numerical simulation software MIDAS/GTS,we explore the different support schemes of roadway,finally,bolt ＋ grouting ＋ roof and floor anchor ＋ steel ＋ spray lining for controlling large deformation of the roadway has a significant effect.

关 键 词：极弱胶结泥岩 大变形巷道 联合支护 数值模拟 软岩支护 

分 类 号：TD353[矿业工程—矿井建设]