Numerical simulation of earthquakes impact on facilities by grid characteristic method

Numerical modeling of dynamic wave processes in heterogeneous media allows to investigate the earthquake stability of different constructions. The aim of this work is to study the earthquakes' impact on the ground buildings and underground facilities. The use of grid-characteristic method makes possible to take into account the physics of arising wave processes. The use of systems of hierarchical grids allows to perform a calculation of seismic waves directly from the earthquake source to the ground buildings and underground facilities. The arising area of cracks in this ground building (two-storied houses) at different times from different types of seismic waves is studied. Also the impact of earthquake on the underground facilities is considered. The dynamical arising of cracks and destruction into the underground facilities made from different types of reinforced concrete due to the impact of different types of seismic waves is investigated in this paper. The results demonstrate a possibility of investigation earthquake stability of underground facilities and living buildings using modeling of seismic waves' propagation directly from the earthquake centers. (C) 2017 The Authors. Published by Elsevier B.V.