软岩巷道破坏机理及支护方法研究

Study on Failure Mechanism and Support Method of Soft Rock Roadway

新疆镜儿泉铜镍矿的地质构造情况特殊,开挖的巷道必须穿越软弱破碎带。分析了软岩巷道破坏的原因及软弱结构破坏失稳性的机理,结合软岩巷道的支护特点与支护原则,以及现阶段矿山巷道施工的特点,提出了该类矿山软岩破碎带巷道的支护方案。

The geological structure of Jingerquan coppernickel deposit in Xinjiang is special, roadway＇excavation must break through weak and broken layer. In this paper, the causes of soft rock roadway damage and the failure mechanism of weak and unstable structure are analyzed, then, combining with the support features for soft rock roadway and its support principle, as well as the characteristics of roadway construction in the mine at the present stage, some support schemes of roadway in weak and broken zone are presented.