Description:
Modeling of the impact of a point explosion shock wave on a soil mass and an underground structure at different locations of the explosion epicenter from the ground surface was performed. The study of the stress- strain state of soils was carried out usi ng a nonlinear dynamic method and a fully coupled numerical model, including various models of materials. The result of numerical modeling showed the adequacy of the adopted numerical calculation methods. The findings showed that solving the problem in a nonlinear dynamic formulation allows obtaining the parameters of the shock wave at different depths from the explosion center, as well as obtaining a complete picture of the interaction of the shock wave with the underground structure in surface and underground explosions.