ABSTRACT
Numerical methods adopted for rock dynamic analysis can generally be classified into the vibration method and the wave method. The essential difference between the two methods is whether to consider the wave propagation in the medium under study. The vibration method ignores the wave propagation and applies dynamic loading on the area under study. As the problem is simplified, the vibration method can easily be coupled with the finite element method. Since the constraint on time step is far less than that of the wave method, the vibration method has been widely applied in research and engineering projects. On the other hand, the wave method considers the effect of wave propagation. The wave takes some time to propagate to other locations. Its theory is rigorous and can reflect the response process of a medium under dynamic loading more accurately. Therefore, the wave method has a promising prospect and profound significance in researches.
