Abstract
To investigate the discontinuous behaviors of rock slopes/masses after collapse of the rock slope caused by the earthquake, the discontinuum based approach is necessary. In this study, the earthquake response analysis for discontinuous blocks was performed by Discontinuous Deformation Analysis (DDA) with a single block and multilayer block models. The results obtained from the simulations by DDA were compared with the analytical solutions and results from the laboratory shaking table tests. We investigated the applicability of DDA to seismic problems. It was found that DDA is powerful tool to analyze seismic response for both simple block and multilayer block models.
