摘要
本文在大量的试验基础上,系统分析和总结了三种类型粗粒土的特性。并针对广泛应用的E～μ模型存在的问题,结合粗粒土的变形强度机理,提出了描述粗粒土特性的新的非线性K-G模型。该模型对几座高土石坝的应力-应变计算结果测资料吻合较好。
This paper hystematically analyzes and summaries the stress—train—strength behavior of several kinds of coarse granular soil according to the results of numerous tests. Because the E—μ model which is used broadly has some defects, this paper presents a new non—linear K-G model which can describe the stress—strain behavior of coarse granulour soils. Using this proposal model, the stress and strain of several high rockfill dams calculated by FE method are given. These calcalated results are agreeable to those observed.
关键词
粗粒土
剪胀性
应变软化
本构模型
coarse granular soil, dilatanly, strain work—softening, constitutive model
