复杂应力条件下软岩巷道的返修支护  

Repairing supporting technology of soft rock roadway under complex stress conditions

作　　者：任建喜[1] 冯超[1] 张琨[1] 奚家米[1] 陈新年[1] 孙扬[1] 冯晓光[1] 

机构地区：[1]西安科技大学建筑与土木工程学院,陕西西安710054

出　　处：《西安科技大学学报》2010年第2期165-168,181,共5页Journal of Xi’an University of Science and Technology

基　　金：教育部科学技术研究重点项目(207119);陕西省教育厅专项基金项目(08JK362)

摘　　要：针对魏家地煤矿1070巷道返修工程,分析了复杂应力条件下软岩巷道破坏机理。研究表明,导致1070巷道出现顶板下沉量大、底板严重膨胀、两帮位移大的主要原因是巷道埋深大,构造应力高,采空区矿山压力显现显著。确定锚注锚网联合支护作为1070巷道返修方案。监测结果表明,1070的返修支护方案合理,效果良好。According to repairing supporting engineering of 1070 Roadway in Wei Jia-di Coal Mine, sta- bility failure mechanism of soft rock roadway engineering under complex stress conditions is analyzed. Research shows that roof subsidence of 1070 Roadway is considerable, expansion of bottom plate is serious, and displacement of two sides is large. The reason that 1070 Roadway has this deformation charac- teristics is large buried depth, great structural stress, and significant mining pressure in mined-out area. Combined supporting by bolt-grouting and bolt-net is taken as repairing scheme. Monitoring results show that repairing supporting scheme is reasonable, and the good effectiveness is obtained in the practical application.

关 键 词：复杂应力 软岩巷道 巷道支护 

分 类 号：TD353[矿业工程—矿井建设]