【摘要】 介绍了Kocaeli地震和集集地震的板块构造和区域地震的活动特性,及地震引起的地表破裂,提出了一种基于动力学和界面系统的、局部宏观尺寸的震源动力破裂过程分析方法。归纳出基于材料破坏分析基础的地震地表破裂的5种主要特征,应用材料和界面本构描述的控制方程稳定性讨论,阐明了地表破坏类型对应的力学机制,提出了相应的分析方法。更多还原

【Abstract】 Surface ruptures caused by strong earthquakes of Kocaeli and Chi-Chi,and local continental tectonics,earthquake activity are introduced here.A general method of source rupture progress is proposed based on a macroscopical dynamic system of discontinuous earth media and interfaces.For existent surface ruptures,5 main types are classified by in-situ survey and in general sense,which are shear strain localization,tensional break, shear fragmentized belt,plastic deformation zone,and liquefaction/lateral movement divisions.And related methods of those kinds of geomaterial failure of onset and evolution are proposed based on stability of governing equations with specified constitutive models.更多还原