摘要
正令煤业大巷为深部软岩巷道,围岩松散破碎。在分析了软岩巷道失修的原因,并根据软岩岩层的特殊性,对软岩巷道采用一般支护比较困难的情况下,进行锚网索喷与O型拱联合支护的可行性研究,从而找到适于软岩巷道支护的方式,解决了软岩巷道支护困难的难题。试验表明,该技术支护效果良好,并取得可观的经济效益。
The main roadway of Zhengling coal mine is deep soft rock roadways, surrounding rock is broken and loose. In the circumstances, analyzes the disrepair reason of soft rock roadways, and according to the particularity of soft rock strata, in soft rock tunnel excavation using general support is difficult, carries out feasibility study of Bolt - Mesh - Anchor - Shotcreting and O type arch combined support, so as to find the way of suitable for soft rock roadway support, solved the problem of difficult support of soft rock roadway. Test shows that this technique has good support- ing effect, and obtains considerable economic benefits
出处
《山西焦煤科技》
2012年第8期32-35,共4页
Shanxi Coking Coal Science & Technology
关键词
软岩巷道
联合支护
分析
Soft rock roadways
Combined support
Analysis
