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。
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.
出处
《水利学报》
EI
CSCD
北大核心
2004年第3期15-21,共7页
Journal of Hydraulic Engineering
基金
国家自然科学基金资助项目(59639250)
关键词
面板堆石坝
动力反应
等价线性
增量迭代
concrete faced rockfill dam
dynamic response
equivalent linearization approach
incremental iterative numerical method
