【摘要】 运用数值模拟方法 ,模拟喜马拉雅弧及其特殊构造部位 ,即东、西二弧顶边界作用力的变化对中国大陆内部剪应力场影响范围及大小 ,进而结合实际强震活动探讨喜马拉雅弧边界作用力变化与中国大陆内部应力场分布及地震活动的关系 ,结果表明 :东、西弧顶是喜马拉雅弧的特殊构造部位 ,这一边界作用力的变化对中国大陆应力场分布具有重要影响 ;其中东部弧顶影响更为显著 ;喜马拉雅弧边界作用力变化是中国大陆强震活动成组迁移特征的重要动力因素。更多还原

【Abstract】 Applying numerical simulation method, the effect of the variation of boundary condition in Burma arc (Eastern arc) and in Pamirs arc (Western arc) on the stress field inside China′s inland are studied. Then the relation between the variation of the boundary force in Himalayan and the stress field in China′s inland and the earthquake activity is researched. The following conclusions are drawn: The variation of boundary conditions has great effect on the adjustment of stress field in China′s inland. Among which, the variation of boundary conditions in Burma arc has greates effect on the pattern of strong earthquake activity in western China. The variation of boundary conditions in Himalayan arc can result in earthquake strong in groups.更多还原