【摘要】 以洪家渡面板堆石坝为算例,分别采用基于等效线性模型的等价线性法和基于亚塑性边界面模型的增量迭代法对坝体的动态响应进行了三维有限元对比分析。研究了不同的材料模型与计算方法对坝体的峰值加速度、峰值剪应变及面板的动应力和周边缝动变位等的影响。以比较结果看出,增量迭代法得到的坝体动态响应与已有的计算成果和模型坝体的试验结果在定性上是一致的。更多还原

【Abstract】 The dynamic response of the concrete faced rockfill dam in Hongjiadu Project is calculated by using equivalent linearization approach and incremental iterative numerical method based on boundary surface hypoplasticity model. Comparisons of the maximum acceleration,maximum shear strain of the dam and stress of the slabs calculated by these two methods are carried out. It shows that the incremental iterative numerical model gives more precise result and accords closer with the result of model test on shaking table.更多还原