【摘要】 设震源为一个以有限速度扩展的双侧破裂走滑断层,在1°×1°的研究范围内,采用离散波数法,首先计算出144个场点处的位移时程,最后得到了地震破裂产生的动态位移场,并讨论了其动态辐射特征.地震破裂动态位移场的计算为将来实现地震动态应力场的计算奠定了基础.更多还原

【Abstract】 The hypocenter is supposed to be a strike-slip fault of bilateral rupture which propagates at a fi-nite speed.The range of research is 1°×1.°First,the displacement-time processes at 144 field points are calcu-lated by using the discrete-wavenumber method.Finally dynamic displacement field caused by seismic rupture is obtained.The characteristic of dynamic radiation is also discussed.The calculation of dynamic displacement field caused by seismic rupture lays foundation for the calculation of seismic dynamic stress field in the future.更多还原