【摘要】 介质模型及地震波传播是地震波理论的核心内容之一,本文结合作者目前研究所涉及的内容,阐述了介质模型及地震波传播的相关问题.首先是地震学背景中的地震波传播的主要问题.其次是地震波传播的动力学,其中的主体内容可以由波动方程的建立、波动方程和波动方程的延伸三部分组成.再次是地震波的传播与介质因素和界面因素,以及孔隙介质模型的认识和讨论.最后结合均匀弹性各向同性、粘弹性各向同性、双相介质和各向异性四种介质模型,阐述了地震波传播的主要特性.更多还原

【Abstract】 The medium model and propagation of seismic waves is the core problem of seismology and theory of wave propagation, which cover a series of relevant subject fields. This paper addresses some aspects of this problem based on previous studies and our current research work. Nonelasticity, non\|single phase, and anisotropy of the earth media, inversion, nonlinear seismic wave, and earthquake prediction are problems which are develop much attention. Dynamics of seismic wave propagation consists of establishment of wave equations, wave equations and extension of wave equations. Propagation of seismic wave is closed related with media and interfaces. At present studies on the propagation of seismic wave in porous media, viscid media, and anisotropic porous media are of frontal subjects of research. Finally we present the main features of seismic wave propagation in conjunction with homogeneous isotropic elastic, visco\|elastic isotropic, two\|phase and anisotropic medium models.更多还原