摘要
对双江口心墙堆石坝进行了三维有限元应力变形分析.采用邓肯-张EB非线性弹性模型,用分级加荷的方式模拟该坝在施工、蓄水过程中的应力变形特性.对3种不同强度的参数方案,进行了静力参数敏感性分析,给出了应力变形的分布规律.计算结果表明,坝体的应力和变形值在合理范围内,设计方案合理可行.
The three-dimensional finite element analysis is adopted to simulate and calculate the stresses and deformations of Shuangjiangkou Core Rockfill Dam with Duncan-Chang EB nonlinear model during its completion and operation periods by incremental loading. Based on three parameter proposal of different strengths, the analysis of sensitivity to parameter is carried out; and the distribution rule of stresses and deformations is given. The results show that the stresses and deformations of dam are allowable; and the design proposal is reasonable.
出处
《三峡大学学报（自然科学版）》
CAS
2009年第1期18-21,共4页
Journal of China Three Gorges University：Natural Sciences
基金
国家自然科技基金项目(90510017)
关键词
心墙堆石坝
有限元
应力
变形
参数敏感性
core rockfill dam
finite elements
stress
deformation
sensitivity to parameter
