【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.更多还原

【Abstract】 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.更多还原