【摘要】 提出了一种分析三维不连续变形块体系统动力学过程和建坝的数值方法,该方法不但能够模拟位移不连续面在地震载荷作用下的张开和大尺度的摩擦滑移,而且还能给出不连续面上安全系数的分布和随时间的变化。通过有 2 个块体组成的系统验证了所提出的方法的正确性,同时用它分析了一个具有断层和伸缩缝的拱坝系统模型在地震载荷下的动力反应。更多还原

【Abstract】 A numerical method for analyzing the dynamic process of discontinuous deformation system and building dam is proposed. It can model opening and a large amount of frictional sliding of discontinuous surfaces of displacement and describe the changes of safety factor with time and its distribution on surfaces. The method is verified by a discontinuous system with two elastic blocks first; and then is used to analyze the dynamic response of an arch dam system with faults and construction joints under seismic loading.更多还原