摘要
为了安全高效支护极近距离采空区下煤层巷道,实测采空区下顶板厚度变化规律后,提出了多层位注浆锚索支护。设计了II7_(3)24S工作面外风巷支护方案,并应用FLAC^(3D)模拟分析,验证了支护方案的可行性,在工程应用中获得了两道的巷道围岩支护效果,极具示范作用。
In order to safely and efficiently support the coal seam roadway under the very close goaf,the variation law of the roof thickness under the goaf is measured,and the multi-layer grouting anchor cable support is proposed.The support scheme of air roadway outside II7_(3)24S working face is designed,and the feasibility of the support scheme is verified by FLAC^(3D) simulation analysis.Two roadways surrounding rock support effects are obtained in engineering application,which plays a very exemplary role.
作者
陈廷学
晁宁
姚强岭
CHEN Tingxue;CHAO Ning;YAO Qiangling(Wanbei Coal-Electricity,Suzhou 234000,China;State Key Laboratory of Coal Resources and Safe Mining(CUMT),China University of Mining and Technology,Xuzhou 221116,China;School of Mines,China University of Mining and Technology,Xuzhou 221116,China)
出处
《煤炭技术》
CAS
北大核心
2022年第10期89-93,共5页
Coal Technology
关键词
极近距离采空区下开采
顶板厚度发育规律
数值模拟
巷道围岩控制效果
mining under very close goaf
development law of roof thickness
numerical simulation
control effect of roadway surrounding rock
