Theoretical Study On Love wave Propagation in Irregular Earth's Structures

Abstract

Theoretical study on Love wave propagation in irregular Earth's structure has been discussed in the present thesis. For the propagation of Love wave, we used some particular mediums of the Earth with the effect of several parameters on the phase velocity of Love wave. The standard dispersion relation of Love wave has been obtained in particular cases in both problems. The parametric effect on the phase velocity of Love wave has been demonstrate graphically. This thesis entitled ''Theoretical study on Love wave propagation in irregular Earth's structure'' is carried out for the study of Love wave propagation in detail. The thesis contains three major chapters in addition to a chapter References at the end. Chapter 1 express the introduction for the relevant problems. It gives the explanation of studies in the field of theoretical seismology. In chapter 2, we considered the Love wave propagation in initially stressed isotropic medium lying over initially stressed orthotropic half-space with rectangular irregularity at the interface of layer and half-space. The effect of depth of irregularity and initial stresses explained graphically. In chapter 3, the propagation of love wave in reinforced medium lying over non-homogeneous anisotropic half-space with parabolic interface of layer and half-space has been discussed. The significant effect of depth of parabolic irregularity and reinforced parameters on the phase velocity of Love wave has been observed graphically. It has been observed that the phase velocity of Love wave decreases in the presence of irregular interface. The present study is helpful for seismologist, geologist and engineers to find the exact location of earthquake.