深部软岩巷道的加固与支护技术研究

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。

Study on the Reinforcement and Supporting Technique of Deep Soft Rock Laneway

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 p...