Abstract
A series of centrifuge model tests with a reduced model by factor of 1/13.3 was perfonned using undistiubed block samples of naturally deposited sand, to attempt direct comparisons of bearing capacity and failure mechanism with an in-situ loading test. It was found that centrifuge models predicted ultimete bearing capacities to be 60-70% of a corresponding prototype, and elastic defonnations close to the prototype. It was also seen that in the centrifugal models, clear slip lines were not developed, and settlements at yield load were much larger than those observed in the prototype. Furthermore, it was indicated that the bearing capacity and the failure mechanism on the naturally deposited sand were strongly affected by the stress level and the soil structure.
