三峡工程二期围堰低高防渗心墙方案的有限元分析

Finite Element Analyses of Schemes of Low and High Core Walls of Second Stage Cofferdam for Three Gorges Project

用非线性有限元Ｅ～μ模型分析了三峡工程二期围堰低双塑性混凝土心墙方案和高双混凝土心墙方案的变形和应力．比较了堰体填料性质及心墙嵌固深度的影响和各参加单位对低双塑性混凝土心墙方案的计算结果．

The finite element analyses of deformation and stress of the schemes of low double plastic concrete and high double concrete core walls cofferdams for Three Gorges project are performed by the nonlinear E～μ model.The results of variation of behaviors of filling materials and depth of core walls are presented.Finally,the analysing results of the low double plastic concrete core walls scheme are compared with what obtained by different universities and institutes.