基于ABAQUS的某土石坝应力应变计算分析

Calculation and Analysis of Stress and Strain of an Earth-Rock Dam Based on ABAQUS

随着土体本构模型理论进步和施工技术的提高,我国水利工程事业的迅速发展,修建了大量的土石坝,故研究土石坝的变形具有重要的工程意义。论文通过ABAQUS进行二次开发,采用Duncan E-B模型模拟某土石坝,得出蓄水期坝体的最小主应力为0.555MPa,最大主应力为1.636MPa,上游最大水平位移为14.85cm,下游最大水平位移为32.07cm,符合坝体的变形规律,表明本次计算分析是合理可行的。

With the improvement of soil constitutive model theory and construction technology,a large number of earth-rock dam have been built with the rapid development of water conservancy engineering in China,so it is of great engineering significance to study the deformation of earth-rock dam.In this paper,ABAQUS was used for secondary development,and Duncan E-B model was used to simulate an earth-rock dam.It was obtained that the minimum principal stress of the dam during the storage period was 0.555MPa,the maximum principal stress was 1.636MPa,the maximum horizontal displacement of the upstream was 14.85cm,and the maximum horizontal displacement of the downstream was 32.07cm,which was in line with the deformation law of the dam,indicating that the calculation analysis was reasonable and feasible.