基于COMSOL Multiphysics的高面板堆石坝应力变形分析

Stress and Deformation Analysis of High Concrete Face Rockfill Dam Based on COMSOL Multiphysics

为了研究100 m以上高面板堆石坝的应力和变形特性,该文采用Duncan-Zhang E-B非线性弹性双曲线模型,采用有限元软件COMSOL Multiphysics建立模型,利用MATLAB函数进行二次开发,对盘石头水库混凝土面板堆石坝的应力和变形进行了分析。通过分析,获得了混凝土面板堆石坝在竣工期、正常蓄水条件、设计洪水位条件和校核洪水位条件下的应力和变形特征,为100 m以上高混凝土面板堆石坝的施工和运行提供了理论指导。

In order to study the stress and deformation characteristics of a face rockfill dam with a height of more than 100 m,the Duncan-Zhang E-B nonlinear elastic hyperbolic model was adopted in this paper.The finite element software COMSOL Multiphysics is used to establish the model,and the MATLAB function is used for secondary development.The stress and deformation of the concrete face rockfill dam of Panshitou Reservoir are analyzed.Through the analysis,the stress and deformation characteristics of concrete face rockfill dam during the completion period,under normal water storage conditions,design flood level conditions and check flood level conditions are obtained,which provides theoretical guidance for the construction and operation of concrete face rockfill dam with a height of more than 100 m.