Universal Journal of Mechanical Engineering Vol. 6(1), pp. 9 - 20
DOI: 10.13189/ujme.2018.060102
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Simulation of Tsunami Effect by Seismic Wave Propagation in Hypoplastic Medium at Vicinity of Free Boundary


Anatoli Chigarev 1,*, Victor Polenov 2, Pavel Shirvel 1
1 Department Theoretical Mechanics, Belarusian National Technical University, Belarus
2 Department of Mathematics, Voronezh State University, Russia

ABSTRACT

A theoretical study of seismic waves propagation in a soil layer with a free surface has a great importance for a prediction in engineering decisions. Wave packets are radiated from an earthquake source and transfer energy. A transformation and a selection of wave packets occur in a process of wave propagating that why waves which arrive in a layer have a length considerably greater than a variation scale of heterogeneity in a medium in a layer near free surface. In the case, when the properties of different layers affect a relatively small degree on a behavior of the waves, an approximation of effective medium gives a fairly good solution. A model of a hypoplastic medium is used for a describing of some effects, which are observed in the time of seismic wave propagation. The model of hypoplastic medium allows describing many effects which are observed in granular soils. We consider a successive application of effective medium and ray methods in order to receive of approximate analytical solutions wishing to describe shear wave propagation in stratified layer, which lies on a half-space.

KEYWORDS
Wave Propagation, Hypoplastic Medium, Ray Method, Stratified Layer, Hypoplastic Model

Cite this paper
Anatoli Chigarev , Victor Polenov , Pavel Shirvel . "Simulation of Tsunami Effect by Seismic Wave Propagation in Hypoplastic Medium at Vicinity of Free Boundary." Universal Journal of Mechanical Engineering 6.1 (2018) 9 - 20. doi: 10.13189/ujme.2018.060102.