Modeling the Dilatancy of Overconsolidated Clay
The dilatancy of clay has long been considered as a function of the current stress state independent of the loading history.Experimental evidence,however,indicates the dilatancy behavior of over-consolidated (OC) clay bears close correlation with the overconsolidation ratio (OCR) of the soil.This paper presents a simple dilatancy relation for OC clays based on the modified Cam-clay (MCC) model.The dilatancy relation is integrated into a bounding surface model to predict the behavior of OC clays.With only three extra parameters added to the MCC model which can be easily calibrated by triaxial compression tests,the new model is shown to offer good predictions for the experimental data.
Overconsolidation clay dilatancy bounding surface model
Zhiwei Gao Jidong Zhao
Department of Civil and Environmental Engineering,Hong Kong University of Science and Technology,Clearwater Bay,Kowloon,Hong Kong
国际会议
北京
英文
541-545
2012-10-15（万方平台首次上网日期，不代表论文的发表时间）