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以皖北煤电钱营孜煤矿西二轨道上山为研究对象,通过现场实测,对初始支护方案下深部岩巷的围岩变形、顶板离层、裂隙随时间的扩展发育等矿压规律进行分析。对支护设计的稳定性可靠性进行评价,最终根据实测情况并结合数值模拟提出支护优化方案。
Based on the field test, the underground rock deformation, roof delamination and fissure development with time in the deep rock road under the initial support scheme are carried out by using the up and down of the second track of Qianyingzi Coal Mine in Wanbei Coal Mine. analysis. The reliability of the stability of the support design is evaluated. Based on the measured conditions and the numerical simulation, the optimal support scheme is proposed.