高面板坝堆石流变本构模型探讨
Journal of Huaiyin Institute of Technology(2018)
Abstract
堆石的流变变形是产生坝体后期变形的主要原因.围绕堆石流变的变形机理及常用的几种本构模型,讨论了三参数流变模型、七参数流变模型及九参数流变模型中流变量与时间的关系;分析了指数模型中时间相关参数与应力状态的关系.探讨了体积流变与剪切流变衰减系数的区别与室内试验结果的缩尺效应.
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