ABSTRACT

Regarding soil physical properties, the dry density after compaction is the main parameter affecting wetting-induced deformations under vertical stress (Lawton et al., 1992; Rao et al., 2000; Estabragh et al., 2004; Ferber et al., 2008). Moreover, the long-proposed experimental methods for the prediction of wetting-induced deformations, like the single or double oedometer tests (Jennings & Knights, 1957), though remaining pertinent (Basma et al., 1992), need to be compared with observations like physical models. Physical modelling has been used to study the collapse of embankments (Miller et al., 2001) without focusing on the relationships between initial dry density and settlements.