观文水库大坝应力变形有限元分析

沥青混凝土心墙坝具有结构简单、建造经济、受气候条件影响小等优点,越来越受到人们的关注。采用Duncan-Chang非线性E-B模型模拟大坝堆石体及沥青混凝土心墙的本构关系,考虑沥青混凝土心墙与坝体堆石料间的接触,采用二维有限元方法对某沥青混凝土心墙坝应力变形进行计算分析。从理论上计算大坝的最大、最小应力及变形量,为大坝的结构计算提供参考。

Finite element analysis of the deformation and stress of Guanwen reservoir dam

As the benefits of simple structure, economic construction and less effect of weather, asphaltconcrete core wall dam gets more and more attention. In this paper, the nonlinear Duncan-Chang E-Bmodel is used to establish the constitutive relation between the asphalt concrete core wall and the dam.Considering the contact between asphalt concrete core wall and the dam, two-dimensional finite elementmethod（FEM） is adopted in calculation of the stress-strain of the asphalt concrete core wall. Theoreticalcalculation on the maximum and minimum stress and deformation of the dam provides a reference forthe structural calculation of the dam.