掘进工作面空顶区顶板围岩结构稳定性及关键影响因素分析

Analysis of Structural Stability and Key Influencing Factors of Roof Surrounding Rock in Roof of Tunneling Face

为了保证煤矿巷道的快速掘进,提高掘进工作面空顶区顶板围岩结构稳定性,以掘进工作面空顶区为切入点,通过理论分析和FLAC3D数值模拟软件,分析了影响工作面空顶区顶板围岩结构稳定性的因素,为巷道掘进过程中处理空顶区复杂力学引起的巷道变形和顶板垮落问题提供了参考。

Iun order to ensure the rapid excavation of coal mine roadway and improve the stability of roof surrounding rock structure in the empty roof area of heading face,the factors affecting the stability of roof surrounding rock structure in the empty roof area of working face are analyzed through theoretical analysis and FLAC3 D numerical simulation software,which provides a reference for dealing with the deformation and roof collapse problems caused by complex mechanics in the empty roof area during roadway excavation.