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本文介绍的速度一应力公式描述了任意方位的二维非均匀横向各向同性介质中弹性地震波的传播,方程以有限差分格式表示,并用四阶空间算子和二阶时间算子以交错网格求解。实现时采用了吸收边界条件,自由边界条件和对称边界条件。应用两个理想模型计算了合成地震记录:(1)在含有辉绿岩基石反射
The velocity-stress formula introduced in this paper describes the propagation of elastic seismic waves in two-dimensional inhomogeneous transversely isotropic media with arbitrary azimuths. The equations are expressed in finite difference format. The fourth-order space operator and the second-order time operator are used to stagger the grid Solve. Implementation of the absorption boundary conditions, free boundary conditions and symmetrical boundary conditions. Synthetic seismograms have been calculated using two ideal models: (1)