摘要
白山坪煤矿-400m南大巷属极松软岩层，围岩压力显现剧烈。原巷道采用锚网喷支护，一般经1～2个月，巷道产生严重破坏，维护困难，曾经采用多种方法对其修复，均未获得满意效果。后来采用锚注法对其进行加固，取得良好的安全技术效果。该支护方法可供类似的极松软岩层巷道的矿井应用。
-400m Nanda Roadway in Baishanping Colliery belongs to soft rock stratum with high press in the adjoining rock pressure. The article has introduced the supporting technology with bolting anchor method in Nanda Roadway, which has proved safe effective.
出处
《江西煤炭科技》
2009年第3期96-98,共3页
Jiangxi Coal Science & Technology
关键词
软岩巷道
锚喷支护
锚注法联合支护
soft--rock roadway
bolting and shotcrete support
bolting anchor combined support
