深部巷道构造应力作用下的巷道变形分析

Analysis of Roadway Deformation under Structural Stress in Deep Roadway

重点研究了高水平应力作用下,巷道变形,特别是底板破坏、变形的机理,基于压杆稳定理论,分析了水平荷载作用下的巷道底臌变形,通过ANSYS数值模拟,分析了竖直应力相同,不同水平应力作用、无支护条件下的巷道、巷道开挖后的变形破坏机理。得出了不同侧压力系数下的巷道塑性应变、位移矢量图。

The mechanism of roadway deformation, especially floor failure and deformation under high-level stress is studied. Based on the stability theory of compression bar, the deformation of roadway floor heave under horizontal load is analyzed. The deformation and failure mechanism of roadway and roadway excavated under different horizontal stress and without support is analyzed by ANSYS numerical simulation. Vector diagrams of plastic strain and displacement of roadway under different lateral pressure coefficients are obtained.