煤矿安全2012，Vol.43Issue(4)：49-52,4.
余吾煤业轨道大巷破碎围岩控制技术
Control Technology for Broken Surrounding Rock in Main Roadway of Yuwu Coal Industry
摘要
Abstract
This paper analyzed the impact of the broken surrounding rock weak planes,water erosion,tectonic stress,a large cross-section and other factors on the surrounding rock deformation and failure of Yuwu coal industry ＋400 m level track main roadway,discussed the surrounding rock failure characteristics that track roadway two sides failure led to roof deformation,and elaborated furtherly the bolting and grouting combined control technology,in which grouting could reduce surrounding rock plastic zone of two sides and roof and anchor bolting improve self-supporting capacity of surrounding rock.The result of mine pressure observation showed that after grouting reinforced surrounding rock weak planes,in initial stage,bolt and anchor cable beard load quickly,the maximum surface displacement was about 23 mm,and the control effect was remarkable.关键词
轨道大巷/破碎围岩/破坏特征/锚注联合支护Key words
track main roadway/broken surrounding rock/failure characteristics/combined supporting of bolting and grouting分类
矿业与冶金引用本文复制引用
王政行,柏建彪,马长乐,赵培,景超..余吾煤业轨道大巷破碎围岩控制技术[J].煤矿安全,2012,43(4):49-52,4.基金项目
煤炭资源与安全开采国家重点实验室自主研究课题资助项目 （）
江苏高校优势学科建设工程资助项目 （）
全国博士学位论文作者专项资金资助项目 （）
