深部巷道非对称变形的分区力学模型研究

Study on Partition Mechanics Model of Asymmetric Deformation in Deep Roadway

针对深部巷道开挖后围岩非对称变形现象,基于结构力学相关理论,对巷道围岩变形破坏进行了不同分区岩体梁的力学模型构建及数值模拟分析。得出各分区岩体梁变形的弯矩方程和挠度方程,理论分析了各分区岩体梁的变形最大弯矩及最大挠度位置。模拟结果对构建的力学模型进行了有力验证,得出各分区岩体梁的危险位置,可对相关问题提供一定的理论参考。

Aiming at the asymmetric deformation phenomenon of surrounding rock in deep mine roadway after excavation, proceeded with mechanics model building and numerical simulation analysis of different partitions of roadway surrounding rock deformation and failure of rock mass beam has been made based on the theory of structural mechanics. The bending moment and deflection equations of the partitioning rock beam deformation calculation has been concluded, and obtained the maximum bending moment position and deflection position of regional rock mass beam by theoretical analysis. Simulation results validated the building of mechanical model effectively, drawn the risk position of each rock beam, this study can provide a theoretical reference on relevant issues.