Drum centrifuge model tests of surface and buried circular footings on silica sand under general planar loading.

The report presents the results of a series of combined loading tests to assess the behaviour of surface and buried footings on medium dense silica sand. All the tests were performed in the drum UWA centrifuge at an acceleration equivalent to 100 that of the earth's gravity. For one sample 19 individual sites have been tested and 3 different degrees of embedment of circular flat footing models have been examined (d/D ~ 0, 0.5, 1). By means of two different loading arms, two different moment to horizontal load ratios have been investigated. The data presented in this report extend the findings of a testing programme on circular footing on sand (Govoni et al. 2005). All the tests were designed and conducted in order to be analyzed in a work hardening plasticity framework