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采用理论分析和室内实验对某深埋盘区大巷围岩的破坏机理进行了分析,得到了大巷围岩破坏的原因。结合大巷围岩松动圈测试结果,探讨了原有支护方案的不足,并针对性地提出了大巷修复方案。运用数值模拟计算对所提的大巷修复方案的合理性进行了验证。结果表明,提出的巷道修复方案合理有效,能够抑制大巷的变形,满足运输大巷的变形要求。
Using theoretical analysis and laboratory experiments, the failure mechanism of the surrounding rock of a buried lane is analyzed, and the reason of the surrounding rock failure is obtained. Combined with the test results of the loose ring of the surrounding rock of the alley, the insufficiency of the original support scheme is discussed, and the restoration plan of the alley is pointed out. The reasonableness of the proposed rehabilitation plan for the roadway was verified by numerical simulation. The results show that the proposed roadway rehabilitation plan is reasonable and effective, which can restrain the deformation of the roadway and meet the deformation requirements of the roadway.