土体小应变特性研究中的边界面模型  

Boundary model for research of soil's small strain

作　　者：伊颖锋[1] 施建勇[1] 周清华[2] 

机构地区：[1]河海大学岩土工程研究所,江苏南京210098 [2]交通部第一航务勘察设计院,天津310022

出　　处：《岩土力学》2003年第1期135-138,共4页Rock and Soil Mechanics

摘　　要：研究表明,土体小应变特性对准确预测土体的变形起着十分重要的作用,而这一特性很难用传统的本构模型对它加以描述。边界面模型能描述一些经典塑性理论所不能描述的土的真实特性,如何将之进一步加以改进,并有效地应用于土体小应变特性的模拟中是一个有待深入研究的课题。It抯 shown by research that the soil抯 small strain feature is very important to predict soil抯 deformation, this feature is difficaltly to be described by those traditional constitutive model. The boundary model can describe some real feature that can抰 be described by traditional plastic theory. How to make more improvement and use it to research soil抯 small strain feature is a problem deserving further research..

关 键 词：土体小应变特性 边界面模型 本构模型 土力学 应力 多屈服面模型 

分 类 号：TU41[建筑科学—岩土工程]