Research Article

The Undrained Characteristics of Tengger Desert Sand from True Triaxial Testing

Figure 8

Stress-strain relationship and critical state line at bā€‰=ā€‰0. (a) The stress-strain relationships. (b) The critical state line and the state transition line in space. (c) The critical state line of stress ratio and strain space.
(a)
(b)
(c)