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本文采用刚体弹簧元法，分析了小湾双曲拱坝左右岸58个可能滑动体在地震作用下的动力稳定安全系数。结果表明，小湾高拱坝坝肩动力稳定性可以满足设计要求，但应注意加强高高程的抗震措施。“,”Using rigid body spring element method, this paper studied the dynamic stability of 58 possible slip bodies of Xiaowan double curvature arch dam shoulders under earthquake condition. The results show that the dynamic stability of Xiaowan arch dam satisfies the design requirement so long as proper anti－ seismic measures are taken for the dam shoulders at high elevation.