摘要
提出了一种考虑软土损伤和流变性质的粘弹-粘塑性损伤模型。结合堆载预压加固软基实例,分别采用殷宗泽双屈服面模型、粘弹-粘塑性和粘弹-粘塑性损伤模型进行有限元分析。结果表明,用粘弹-粘塑性损伤模型计算的结果与实测值比较接近,说明在工程分析中同时考虑软土流变和损伤是必要的。
A viscoelastic-viscoplastic-damage constitutive model considering damage and creep of soft soil is presented, Deformation of preloaded soft ground was calculated with the Yin's double yield surface model, the viscoelastic-viseoplastic model and the viscoelastic-viscoplastic damage model respectively, It's shown that the simulation results with viscoelastic-viscoplastic-damage model are closer to the in-situ measured data, so both damage and creep of soft soil must be considered in engineering analysis.
出处
《武汉理工大学学报》
EI
CAS
CSCD
北大核心
2006年第4期75-78,共4页
Journal of Wuhan University of Technology
关键词
软土
流变
损伤
soft clay
creep
damage