| Title |
An Analysis of Stress-Strain Relationships of Unsaturated soils Based on Bishop Stress |
| Keywords |
bishop stress;stress-strain relationships;unsaturated soils;matric suction;Bishop 응력;응력-변형률 관계;불포화토;모관흡수력 |
| Abstract |
The stress-strain relationship of an unsaturated soil was analyzed by Bishop stress descriptions in this study. 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 fitted the measured accurately. Deformation moduli in the small strain level were linearly increased generally with respect to Bishop stress. |