Centrifuge modeling of rainfall induced failure of layered soil slope consisting of sand and clay layers was achieved to study the deformation, failure and suction change patterns of such slopes during rainfall. Retrogressive failure in the slope was observed during the experiment. Analysis on the deformation characteristics of the slope showed that the shear zone was more concentrated in the sand zone than in clay, and the sliding surface in the sand layer developed outside the shear zone due to the deformation in the clay layer. Though soil suction in both layers exhibited significant decrease during rainfall, the decrease occurred much earlier and faster in the sand layer. Suction decrease and strain increase occurred simultaneously in the clay layer but not in the sand layer.
IOS Press, Inc.
6751 Tepper Drive
Clifton, VA 20124
Tel.: +1 703 830 6300
Fax: +1 703 830 2300 firstname.lastname@example.org
(Corporate matters and books only) IOS Press c/o Accucoms US, Inc.
For North America Sales and Customer Service
West Point Commons
Lansdale PA 19446
Tel.: +1 866 855 8967
Fax: +1 215 660 5042 email@example.com