300m级心墙堆石坝三维有限元应力变形分析  

Three-dimensional Finite Element Analysis of Stress Deformation of 300 m Level Core Rockfill Dam

作　　者：李成[1] 李同春[1] 李宏恩[1] 

机构地区：[1]河海大学水利水电工程学院,南京210098

出　　处：《三峡大学学报（自然科学版）》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)

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.

关 键 词：心墙堆石坝 有限元 应力 变形 参数敏感性 

分 类 号：TV641.4[水利工程—水利水电工程]