Studying Characteristics of Waves Propagating in Layered Structure with Semi-infinite Layers

This chapter deals with the base of numerical experiments and the basic laws of the distribution of the amplitude characteristics of oscillations propagating in soils of various structures in the presence and absence of a coastal slope. The consideration distinguishes two cases of the ratio of the stiffnesses of the layers of the investigated structure: (i) the normal structure, when the stiffnesses of the layers increase with the depth of the layered structure, and (ii) the anomalous structure in which the pointed regularity is violated. Two types of anomalous structures with a distribution of layer stiffnesses from top to bottom are considered: (i) “hard–soft–hard” and (ii) “soft–hard–soft.” Moreover, these numerical results are obtained taking into account that an oscillation load is located to the left or right of the slope.