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http://dx.doi.org/10.7843/kgs.2008.24.7.17

On the Bishop Stress of Unsaturated Soils under the Low Level of Matric Suction  

Oh, Se-Boong (School of Civil and Environmental Engineering, Yeungnam Univ.)
Kim, Tae-Kyung (Dept. of Civil Engineering, Yeungnam Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.24, no.7, 2008 , pp. 17-24 More about this Journal
Abstract
In this study, the triaxial behaviour of an unsaturated soil was analyzed by Bishop stress descriptions. $K_0$ stress paths and those final values were independent of matric suctions after describing by the Bishop stress. The failure criteria could be defined uniquely by the Bishop stress and were also independent of matric suctions. In the low level of matric suctions the failure criteria have a linear relationship and the estimated criterion fits the measured accurately. The variable ${\chi}$ for describing the Bishop stress was a constant theoretically under the low level of matric suctions. The suction stress could be defined at zero deviatoric stress in the failure criteria and increased linearly with respect to matric suctions in both the theory and the experiments.
Keywords
Bishop stress; Failure criteria; Matric suction; Unsaturated soils;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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