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中文摘要：
发展能够合理评价面板堆石坝在施工期、蓄水期与地震期应力与变形的数值分析方法对于面板堆石坝的设计和安全运行具有重要的意义。本文开发了三维弹塑性有限元分析程序,根据紫坪铺筑坝堆石料单调和循环荷载大型三轴试验确定堆石料的广义塑性模型参数,对紫坪铺面板堆石坝的施工、蓄水过程及汶川地震震害进行了数值模拟,并与实际施工监测和震害调查结果进行了对比。结果表明：数值计算得到的大坝在施工期、地震期的变形,地震后面板应力分布及施工缝错台均与实测结果规律一致。表明采用考虑压力相关性的堆石料广义塑性模型进行面板堆石坝的施工期、蓄水期与地震期的全过程模拟是可行的。
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