摘要
在前人工作的基础上 ,从宏观上建立了一个用于面板坝流变分析的堆石流变模型 :堆石的瞬时弹塑性变形由椭圆 抛物双屈服面模型确定 ,并计入时间效应 ,由双曲线函数经验公式计算堆石与时间有关的粘塑性变形。
Based on previous researchers, this paper establishes a rheology model of rockfill used in the rheology analysis of concrete face rockfill dam despiting the rockfill microstructure. In this model, the instantaneous elasto plastic deformations of rockfills are computed by the oblong parabola two yield surface model, and considering the time effects, the time dependent visco plastic deformations are derived from the empirical equation of hyperbolic function. The reliability of this rheology model is proved to be good after performing inverse problems with deformation records in situ.
出处
《岩土力学》
EI
CSCD
2000年第3期227-230,共4页
Rock and Soil Mechanics
关键词
混凝土面板堆石坝
堆石
流变模型
concrete face rockfill dam
rockfill
rheology model
