【摘要】 张河湾抽水蓄能电站上水库为沥青混凝土面板堆石坝,本文采用邓肯E-B模型模拟堆石坝体,采用考虑流变的粘弹性模型模拟沥青混凝土面板,并考虑温度对模量的影响,进行有限元变形及应力计算分析。结果表明,由于坝高很小,而且库水压力通过坝轴线上游堆石传递至基岩,堆石体的变形较小。面板在转折部位出现拉应变,但仍在安全范围内,与瞬时变形相比,与时间相关的流变很小,可以忽略。更多还原

【Abstract】 The upper dam of Zhanghewan pumped storage power station is a bitumen concrete faced rockfill dam.Duncan E-B model is applied in this paper to simulate the rockfill embankment and the viscoelastic model is applied to simulate asphalt concrete slabs.The FEM analysis shows that the deformation of rockfill is small because the dam height is in low level and the water presure is transferred from upstream embankment to bedrock directly.Tensile strain in slab is liable to occur at the corner but still in safe range.The creep strain related to time is too little to be considered by comparison with the instant strain.更多还原