基于锚杆锚索联合支护的巷道围岩稳定性研究

Study on Surrounding Rock Stability of Roadway Based on Bolt,Anchor and Cable Combined Support

以山西某矿具体工程为背景,在大断面回采巷道使用锚杆锚索联合支护形式,结果表明:较之未支护条件下,锚杆锚索支护的巷道围岩变形迅速增长阶段更短,缓慢增长阶段不明显,并且位移量更小,位移也较为平缓,围岩更快进入变形稳定阶段。

Based on the concrete project of a certain mine in Shanxi,the combined support form of the anchor cable is used in the large-section mining tunnel.The results show that the deformation of the roadway surrounding rock is shorter,the slow growth stage is not obvious and the displacement is smaller than that of the non-supporting condition.The displacement is also gentle,and the surrounding rock enters the deformation stabilization stage more quickly.