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本文依据振型组合概念提出混凝土坝在不规则水库边界条件下地震动水压力的数值分析方法，给出了我国某拱坝工程和某重力坝工程应用电子计算机分析的地震动水压力的成果，和若干实际工程的观测成果作了比较，并据此提出地震动水压力分布规律的一些看法．
Based on the concept of mode shapes, this paper presents a numerical method for numerical analysis of water pressure induced by seismic waves under irregular reservoir boundary conditions. The results of computer simulation of seismic water pressure in an arch dam project and a gravity dam project in China are given. A number of actual engineering observations made a comparison, and then put forward some suggestions on the law of the distribution of water pressure.