中国海洋大学学报（自然科学版）2017，Vol.47Issue(3)：95-100,6.DOI:10.16441/j.cnki.hdxb.20150401
土体修正剑桥模型p'∶q∶v关系的归一化分析
Two-Dimensional Representations of p'∶ q∶υ Information in Modified Cam-Clay Model
摘要
Abstract
The Modified Cam-claymodel is aelasto-plastic constitutive model which is used to describe the stress-strain behavior of soils.The model is simple because it was defined only by five parameters.It was established based on the critical state theory and can describe the behavior of clay more accurately.In addition,the parameters in themodel which can bedetermined easily by indoor soil tests have clear physical meanings.The relationship of the mean effective stressp',the deviator stressqand specific volumeυwas usually used to describe the soils mechanical properties in the model.As a result,a three-dimensional figureor two two-dimensional ones which reflect the relationship between two variablesrespectively are needed.In this paper,the three variables in Modified Cam-claymodel were normalized using two different methods.Two-dimensional graphs which can reflectsp':q:υrelationship were drawn respectively after further derivation and transformationof the model yield surface equation.At the same time,the stress paths of soil triaxial drained testand triaxialundrained test were simulated by programing and the results were drawn in two-dimensional figure.It is found that the stress path resultsconsistent with that obtained using the usual methods.Finally,the accuracy and rationality of the normalization methodsare confirmed.关键词
修正剑桥模型/归一化/三轴排水试验/三轴不排水试验Key words
Modified Cam-clay model/normalization/drained triaxial tests/undrainedtriaxial tests分类
建筑与水利引用本文复制引用
邓英军,安振东,杨俊杰..土体修正剑桥模型p'∶q∶v关系的归一化分析[J].中国海洋大学学报（自然科学版）,2017,47(3):95-100,6.基金项目
国家自然科学基金项目(50779652)资助 Supported by the National Natural Science Foundation of China (50779652) （50779652）
