土体各向异性边界面模型研发的几个问题探讨  

SEVERAL PROBLEMS ON THEORY OF THE ANISOTROPIC BOUNDING SURFACE MODEL

作　　者：钦亚洲[1,2] 陈建龙 熊孝波[4] 刘成[5] 

机构地区：[1]南通大学杏林学院,江苏南通226019 [2]南通大学交通学院,江苏南通226019 [3]南通市水利勘测设计研究院有限公司,江苏南通226006 [4]南通大学建筑工程学院,江苏南通226019 [5]南京林业大学土木工程学院,南京210037

出　　处：《力学与实践》2013年第5期59-62,共4页Mechanics in Engineering

基　　金：南通大学杏林学院科研基金(2012K142);住房和城乡建设部研究开发项目(2011-k3-36)资助项目

摘　　要：土体边界面模型通过采用塑性模量场插值,来反映土体变形的非线性,边界面模型适合对小应变情况下的土体非线性变形进行模拟.在Wheeler模型的基础上,结合边界面理论,构造一个土体各向异性边界面模型,模型可以反映天然土体的各向异性特性.本文对该模型研发过程中遇到的几个问题进行理论探讨,为理解和掌握各向异性边界面理论,并进一步进行新型边界面模型的研发,提供了理论借鉴.The interpolation of the plastic modulus between the real and imaginary stresses is used to determine the actual nonlinear deformation of the clay. The bounding surface model is suitable for the simulation of small nonlinear deformation of the clay. An anisotropic bounding surface model is developed based on Wheeler＇s elastoplastic model （S-CLAY1） and the bounding surface theory. The anisotropy of the natural clay can be captured by the model. Several problems on the theory of bounding surface model are discussed. The paper provides some guidance to understand and master the theory of the bounding surface model and to develop a new bounding surface model.

关 键 词：各向异性 边界面 塑性模量插值 临界状态 

分 类 号：TU443[建筑科学—岩土工程]