摘要
目前，对于重力坝的抗震性能研究常按平面问题进行分析，在各坝段间固结灌浆之后，考虑坝体整体抗震特性的研究尚不完善。本文结合漫湾水电站混凝土重力坝工程的抗震性能研究，对大坝按整体进行动力模型试验，得到了整个坝体空库、满库时的动力特性参数，并用三维有限元动力分析作了验证、比较本文采用的整体分析方法和传统的取单宽坝段平面问题分析方法表明，按平面问题分析不能完全反映．实际大坝的动力性能，并不能保证偏于安全。
t present,the seismic study of the whole dam is not perfect because most of researches aremade on the basis of plane strain.This paper carries on the experiment with dynamic model test as the whole for the Man-WanDam,and acquiries the dynamic response on reservoir-empty and filling conditions. The results ofthe experiments are in aqreement with that of the finite element calculation. That the global analyticmethod iS compared with the plane strain method shows that the results for the plane strain don'treflect really the dynamic performance of the whole dam and is riot certainly reliable.
