Dynamic centrifuge model tests on segmental geosyhthetics reinforced soil retaininGWalls -Failure mechanisms of segmental GRS walls-

Abstract

A series of dynamic centrifuge model tests was carried out so as to investigate into both static and dynamic behaviors of segmental geosynthetics reinforced soil retaininGWalls (GRS walls). Based on the results from the model tests, failure mechanisms of the GRS walls were investigated. It was found from the investigations of the failure processes of the GRS wall models that the extensions of the reinforcements did not accumulate the deformations of the GRS walls while the local instability of the facing panel resulted into the catastrophic failure of the models. The importance of the auxiliary reinforcement was also highlighted because the local instability of the facing panel did not occur at the facing panel with the auxiliary reinforcements.