摘要
五凤煤矿矿井巷道围岩顶底板多为粉砂质泥岩,泥岩,在巷道掘进过程中如不能及时采取有效的支护形式极易产生顶部垮塌及底鼓现象,经过多次实践,采用管缝锚杆一次支护后,收到了良好的工程效果。
The article has introduced the supporting technology with slit wedge tubing bolt in siltstone roadway in Wufeng Colliery, which has solved the problems of top collaps and floor lift and proved effective in construction.
出处
《江西煤炭科技》
2007年第2期40-41,共2页
Jiangxi Coal Science & Technology
关键词
软岩巷道
管缝锚杆
支护
soft -rock roadway
slit wedge tubing bolt
support
