Numerical analysis of dynamical response on blasting vibration in some high-speed train's slope excavation

In this paper, it used time interval analysis about ANSYS to analyze the simulation for finding out the dynamic response of blasting on the slope of a high-speed train. The results of analysis indicated that a variety of stress concentration stress is existed, but the stress values are small and the nodal displacements are small and the slope without any plastic deformation and it isn't enough to produce slope total destruction if the dynamic effects of blasting vibration was considered; The rate of emergence of the more obvious amplification effect and inertia lag with the increasing scale of blasting; The slope structure model that establishing the dynamic characteristics inherent in the actual slope is the premise to obtain the correct dynamic response, Those such as the dynamic characteristics of the slope and the dynamic displacement and the velocity and its distribution is more realistic action and the stress and the displacement and the velocity using ANSYS simulation can factually reflect the dynamic response of the slope. © 2011 by Binary Information Press.