Abstract:Based on the principle and application condition of dynamical response time-dependent analysis of Wilson-q law,a 3D model of high rock slope related to a huge hydropower project is established. The dynamic finite element analysis of high slope is used to investigate the dynamic characteristics of high rock slope and analyze the acceleration response,displacement response,and stress response under the seismic action in different parts of high slope. In the end,the detailed accelerate values of different parts of high rock slope at different periods on the seismic response are discussed,which show that displacement value and stress value are of clear difference for the differences of shape and structure of high slope during the seismic action. The maximum accelerations and active displacements values mainly presented to the middle of high slope,and the middle and upside of high slope are sensitive to the seismic action compared to the other parts of high slope,which lead to failure easily under intensive seismic action. At the same time,the acceleration is enlarged by 2.03 times in the middle of the slope. Dynamic response results of slope in the seismic action are achieved by means of time-dependent analysis,which can be applied to reflect the dynamic characteristics of high rock slope and the disturbance action of high slope during seismic action.