摘要
本文提出了一种在有限元计算中考虑土坝浸水变形的方法。与常用的Nobari方法相比,主要有两方面的改进:①用更能反映浸水变形特性的双屈服面弹塑性本构模型来代替邓肯模型;②用增量法求浸水变形,克服全量法带来的若干缺点。
A new method of analyzing earth dam deformation during reservoir filling using FEM is developed in this paper. Comparing with Nobari's method, which is often used in engineering, two aspects are improved: (a) the elasto-plastic constitutive model with two yield surface, which can reflect the deformation characteristics of soils during reservoir filling more realistically, is used instead of Duncan's model; (b) the increment method is used to calculate the deformation during reservoir filling, which overcomes the defects in the whole amount method.
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
1990年第2期1-8,共8页
Chinese Journal of Geotechnical Engineering
