Influence of natural disasters on ground facilities |
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Authors: | V I Golubev I E Kvasov I B Petrov |
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Affiliation: | 1.Moscow Institute of Physics and Technology,Moscow,Russia |
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Abstract: | The purpose of this article is to study the problem of the propagation of waves that result in earthquakes in different geological
media: homogeneous, multilayer, gradient, with fractured layer, and karst cavern. The authors pose the problem of analyzing
the impact of waves on ground structures: buildings and dams. Numerical solutions of problems of wave propagation in heterogeneous
media are obtained. On the basis of the analysis of wave patterns, the types of waves propagated from the focus of the earthquake
are qualified. The comparison of the impact of elastic waves on the day surface for the cases of different geological media
is done. Synthetic seismograms for these media are obtained. The influence of elastic waves on the stability of ground structures
is qualitatively examined. The grid-characteristic method for triangle meshes with the formulation of boundary conditions
on interfaces of rock-crack, building-rock, rock-water, and dam-water, as well as free surfaces in an explicit form, is used
in this paper. |
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