Abstract
Undrained triaxial compression and extension stress-strain behaviour of a saturated remolded clay consolidated under K0 and isotropic stress conditions was investigated. Test results indicate that octahedral stress ratio-strain relationship and effective stress path in octahedral stress space were affected by the stress system during shear as well as the stress condition during consolidation. Moreover, it was also found that not only undrained shear strength but also effective angle of shearing resistance were influenced by the two factors mentioned above. Octahedral stress ratio versus dilatancy curve was approximately represented by a set of two straight lines.Based on the test results, the authors proposed a new method of predicting undrained stress-strain behaviour of K0 consolidated clay by using the data obtained from isotropically consolidated undrained tests.
