玉溪煤矿巷道支护优化方案研究

Study on Optimization Scheme of Roadway Support in Yuxi Coal Mine

本文将玉溪煤矿中央辅助运输大巷出现的大变形破坏问题作为研究对象,分析了大巷变形破坏特征及导致大巷出现大变形破坏的主要原因,返修支护设计采用“锚网索+U型钢环形支架+关键位置注浆”复合支护方案,整体取得了较好的效果。

In this paper,the problem of large deformation and failure in the central auxiliary transportation roadway of Yuxi Coal Mine is taken as the research object,the characteristics of the deformation and failure of the main roadway and the main causes of the deformation and failure of the main roadway are analyze.The repair support design adopts the"Anchor Mesh Cable+U-shaped steel ring support+grouting at the key position"composite support scheme,which has achieved good results as a whole.