THE DETERMINATION OF THE SHEAR STRENGTH OF UNSATURATED LOESS WITH SOIL-WATER CHARACTERISTIC CURVE
The first approach for determine the shear strength of unsaturated soil was proposed by D. G. Fredlund in 1978, since then some researchers have given out other approaches to determine the shear strength of unsaturated soils. In 2004, a new method, that is, the fractal model theory, was proposed for determining the shear strength of unsaturated soil. Based upon the fractal model theory, in this paper, the surface fractal dimension and the air entry value of two unsaturated loess samples are obtained from their soil-water characteristic curve(SWCC), the shear strength of the two loess samples is determined, a new approach for determination of the shear strength of unsaturated loess with its SWCC is presented. By comparing results of this paper with those of the laboratory tests, the relationship between the SWCC and the shear strength of unsaturated loess is discussed and the validity of the fractal model theory for unsaturated loess is also explained.
Jingyu Chen Jianliang Gao Xiaonan Gong Ying Hai
Institute of Geotechnical Engineering, Zhejiang University,Hangzhou 310027, P.R.China;School of Civi School of Civil Engineering and Architecture, Zhejiang Jiaxing College, Jiaxing 314001, P.R.China Institute of Geotechnical Engineering, Zhejiang University,Hangzhou 310027, P.R.China School of Mechanical and Electrical Engineering, Zhejiang Jiaxing College, Jiaxing 314001, P.R.China
国际会议
南京
英文
545-549
2007-04-21（万方平台首次上网日期，不代表论文的发表时间）