土质心墙堆石坝弹塑性有限元计算分析

Study on Elasto-plastic Model and Two-dimensional Finite Element of Core Wall Type Rockfill Dam

通过室内试验提出某心墙堆石坝的心墙料和反滤料非线性弹性模型参数和弹塑性模型参数 ,并用于实际工程的二维有限元计算中。比较了两种模型的计算结果 ,为弹塑性模型用于有限元计算的推广提供了参考借鉴。

Parameters of several elasto plastic and nonlinear elasto models have been determined by indoor tests. Good agreements are achieved between the calculated stress strain curves and the measured results of all these soils. All these parameters have been used in the finite element analysis of core wall type rockfill dam.From the results by different models we can get some guioliance in the practical application of constitutive model.