TRANSFORMATION OF DISCONTINUOUS WAVE FRONTS IN ELASTIC LAYERED MEDIA WITH VARIABLE DENSITY

In this paper, the problem of interaction of a discontinuous wave with the heterogeneity between two elastic isotropic media with different density parameters is considered. The research object is non-stationary wave with strong discontinuity generated in non-homogeneous elastic medium. The work aims to investigate the diffraction of the discontinuous wave in an interface between two anisotropic media and analysis of received results depending on the anisotropy parameters values. The research method considered is the zeroth approximation of the ray method. The simulation processes of mechanical interaction of elastic discontinuous waves with interfaces between rock media with different properties (particularly, anisotropy parameters) is proposed. The results of the simulation, showed that, the discontinuous wave transformation in the interface planes, not only wave polarization and front geometry can be changed, also the wave intensity can be increased or decreased. This type of the wave diffraction can be accompanied by essential change of the wave intensity in different zones of the wave front. The work results can be implemented for the design of construction of structures, transport and mine destination with the aim of their seismic protection and their screening from action of discontinuous waves generated by different technical failures.