关键词: 砾质土心墙堆石坝, 抗震复核, 非线性动力有限元分析

Abstract: According to NB 35047-2015 Code for Seismic Design of Hydraulic Structures for Hydropower Project and Outline of Safety Assessment for Completion of Lancang River Miaowei Hydropower Project, by use of the scenario earthquake method to determine the design response spectrum, as the target spectrum of artificially synthesized seismic waves, the seismic safety checking calculation of the gravel core rock fill dam of Miaowei hydropower station should be carried out. Based on the results of ground motion parameter review, combining the results of damming material dynamic tests, the nonlinear dynamic finite element method is used for seismic review of gravel core rock fill dam of Miaowei hydropower station. The results show that the seismic safety of the dam is good. 

Key words: gravel core rock fill dam, seismic review, nonlinear dynamic finite element method