千米深井软弱围岩巷道底鼓治理数值分析研究

摘要

结合赵楼煤矿巷道工程实际 ,分析了巷道底鼓治理机理.利用UDEC数值分析软件 ,进行数值模拟分析 ,得出巷道底鼓治理的最佳方法.数值模拟和现场观测表明,采用锚杆索支护加固和钻孔卸压相结合的方法 ,可有效控制巷道变形 ,使底板处于应力降低区 ,提高底板岩层的稳定性 ,是防治底鼓的有效措施.%In combination with the actual engineering of the mine roadway in Zhaolou Mine ,the paper analyzed the floor heave control mechanism of the mine roadway .The UDEC numerical analysis soft-ware was applied to the numerical simulation analysis .An optimized method to control the floor heave of the mine roadway was obtained .The numerical simulation and site observation showed that the ap-plication of the bolt and cable support reinforcement and the borehole pressure releasing combined method could effectively control the deformation of the mine roadway ,could make the floor in the stress reduced zone ,could improve the stability of the floor strata and could be an effective measure to prevent and control the floor heave .