Abstract
Undrained cyclic triaxial tests followed by drainage were done on a non-plastic silt. A raelative dry density defined by ρ/ρmax was used as a first order parameter in order to prepare consistent specimens by both tamping and water sedimentation methods. Cyclic tests were used to investigate the influences of (1) initial density, (2) particle structure and (3) overconsolidation. Based on the laboratory test results, empirical relations have been developed in order to predict the normalized liquefaction strength from the corresponding static undrained strength and the post-liquefaction volumetric strain. Both relations are found to be independent of the OCR and initial density but dependent on the initial structure formed during specimen preparation.
