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本文将显式有限元结合外推人工边界的方法发展应用于三维非线性近场波动问题的研究，首次提出了拱坝－库水－地基系统三维非线性地震反应波动分析方法，并与传统的无质量地基分析方法进行了比较。
In this paper, the method of explicit finite element combined with extrapolation of artificial boundary is developed and applied to the study of three-dimensional nonlinear near-field wave motion. The method of three-dimensional nonlinear seismic response analysis of arch dam-reservoir-water-base system is proposed for the first time, Massless foundation analysis methods were compared.