XING Yichuan 1, XIE Dingyi 2, WANG Xiaogang 1, LI Zhen 3
1.China Institute of Water Resource and Hydropower Research Beijing 100044 China 2.Research Institute of Geotechnical Engineering Xi’an University of Technology Xi’an 710048 China 3.Northwest Scien Tech University of Agriculture and Forestry Yangling 712100 China
Abstract：In this paper,cubical triaxial tests are carried out using Yangling unsaturated loess,and a method to determine the effective stress parameters is presented according to the new effective stress expression of unsaturated soil under 3D stress state. Moreover,the relationship curves of corresponding effective stresses and strain are calculated.
