摘要
首先分析了东大煤矿北翼胶带巷的工程地质情况,进而分别从两巷道间距、埋深、顶板岩层、断面跨度及支护参数、施工质量等6个方面来分析,得出了北翼胶带巷的破坏机理,由破坏机理及围岩松动圈范围确定了二次加固的方案,即对巷道顶板及两帮采用锚注加固,并且对新掘巷道进行参数优化设计,以达到良好的支护效果,从而满足巷道的设计使用年限,更好地为煤矿生产服务。
This paper firstly analysed geological environment of north strap laneway of Dongda coal mine, then it analysed in 6 different ways of 2 lineway space between, embedding depth, top terrance, span and supporting parameter, construction quality. As a result, we can got the breakage elements of north strap laneway. It made an reinforce way again resulted from breakage elements and distortion range of wall rock, which was bolt - grouting reinforce on top terrance and sidewalls of coaldrift. And it optimize the supporting param- eter of new excavate laneway, then it can got good supporting effect and satisfied with the designed fixed number of year. It served the coal production in the end.
出处
《煤》
2009年第4期14-15,24,共3页
Coal
关键词
支护参数
锚注加固
参数优化
supporting parameter
bolt- grouting support
parameter optimization
