大断面巷道顶板失稳机理分析及防治

摘要

The paper analyzed the key causes of roof falling in transport roadway of Wanli Colliery and optimized the support design for keeping roadway roof stability.The practice shows that the support effect is very good.%以万利一矿3-1煤3盘区胶运大巷顶板冒落控制为背景,详细分析了顶板失稳冒落的主要原因,以支护理论为基础,通过优化支护设计,来控制巷道顶板围岩的稳定性,并在实践中取得了很好的效果。