【摘要】 紫坪铺大坝为"5.12"汶川特大地震中高地震烈度区的最高坝,其设计和施工富有特色。调查表明,大坝基本蓄水功能没有受到大的影响,上下游坝坡稳定安全,震损表现为总体震损轻微,局部震损较重。分析认为,坝体的变形稳定、抗滑稳定和渗透稳定性能良好,震损可修复和易修复,地震动输入模式有别于常规模式。抗震特性初步分析可得到几点重要的经验和启示。更多还原

【Abstract】 The Zipingpu concrete faced rockfilled dam(CFRD)with a height of 156m is the highest dam in "5.12" Wenchuan super earthquake on high-intensity zones.Its design and construction features is displayed.The survey results show that the impound function had not been affected and the upstream and downstream dam slope is stability.The seismic damage is slight in general and serious in local.The studies reveal that the deformation stability,the stability against sliding and the seepage stability of dam are still good after earthquake.The seismic damage of the structure is easy to re pair.The earthquake motion and input model is different from the conventional model.Primary analysis of seismic behavior and damage are expected to be of benefit to understanding of the seismic behavior of high CFRD.更多还原