Responses of frozen, fine-grained soils due to multiple packets of cyclic stress with variable amplitude and an empirical prediction model

A suite of stress-controlled cyclic triaxial tests were performed on frozen, fine-grained soils to assess the characteristics accumulated and behaviours under packets stress with variable amplitude. The influence sequences is highlighted, results amplitude indicate that applied sequence importance regarding final deformations. step change observed in strain when beyond previous package, while a decreasing level below loading package slight additional accumulation. these also stiffness dependent both past current For frozen soil, higher lower levels yield stiffness. An empirical approach for representing response multiple proposed then verified by test data. show model able extract predict loading.