Effect of initial stress, heterogeneity and anisotropy on the propagation of seismic surface waves

This article explores the effect of initial-stress, heterogeneity and anisotropy on the propagation of SH-wave (Case-1) and Rayleigh-type wave (Case-2) in a semi-infinite medium while propagation of Love-type wave (Case-3) is analysed in a composite structure with distinct initial-stressed heterogeneous anisotropic layer and semi-infinite medium. Velocity equations have been deduced in the closed-form for SH-wave and Rayleigh-type wave respectively whereas dispersion equation has been accomplished analytically for Love-type wave. Deduced results have been matched with the pre-established and classical results. Numerical results have been portrayed and to unravel the influence of various affecting parameters and set forth the analytical findings.