论多采空区下巷道开挖围岩应力的分布规律

On the Distribution of Surrounding Rock Stress in the Excavation of Tunnels under Numerous Mined-out Areas

通过对原岩应力场和极近距离煤层群开采煤柱稳定性进行分析,探讨多采空区下巷道开挖围岩应力的分布规律。

Through the stability analysis of coal pillar extraction of in situ stress field and the group of seams with extra -short intervals, the paper discusses the distribution of surrounding rock stress in the excavation of tunnels under numerous mined-out area