【摘要】 结合某水电站超大型地下洞室群施工过程中围岩稳定问题 ,通过岩体弹塑性理论分析以及数值模拟对岩石物理力学参数 (弹性模量E ,泊松比 μ ,粘结力C以及摩擦角 φ)不同组合的多种方案计算和分析 ,得到各岩体物理力学参数对洞室围岩稳定影响程度大小 ,为工程勘测设计和现场施工提供了较有价值的参考。更多还原

【Abstract】 In combination with the stability problem of a large-scale underground power station under construction, computation and analysis are carried out for schemes with different combinations of physical parameters of rock ( e.g ., elastic modulus E , Poisson ratio μ , cohesive force C and friction angle of the rock φ ) by elasto-plastic theory and numerical simulation. The influencing degrees of these rock parameters on the stability of the underground chambers are obtained by employing three dimensional nonlinear finite element method, providing a valuable reference for the survey and design and field construction of underground engineering.更多还原