ABSTRACT
A column type deep mixing improved ground has frequently been used to increase stability of embankment constructed on a soft ground. A lot of model tests and numerical analyses have been carried out to study the behaviour and failure pattern of the improved ground subjected to embankment load, where the shear failure of the deep mixing columns are studied in the internal stability and the sliding, overturning and bearing capacity failures of the improved ground are long studied in the external stability. Almost all studies investigate the stability of the improved ground sitting on a horizontal foundation. However the stability of the improved ground sitting on an inclined foundation has not well been studied yet. In this study, the internal stability of DM columns on an inclined foundation was investigated by centrifuge model tests.
