Abstract
A new model with double loading functions, one for compressive deformation and the other for shear deformation by Hyperbolic function, is proposed. Validity of this model was tested by analyzing results of bearing capacity model experiments on sand in a centrifuge under accelerations of 20, 40, 60 and 80g. It was found that loading stresssettlement relationships of the experiments were predicted using the model with slight differences. In addition, the scale effect observed in the experiments was simulated using the model. However, the stress distributions underneath the footing computed by employing the model did not coincide with that of the experiment under 40g due to ignoring softening in the model. Accuracy of the Duncan-Chang model and a single loading model were also tested. It was found that neither model was appropriate to describe the test results.
