Results of centrifuge modelling of socketed caissons in a weak model rock made of cement, sand, bentonite, and water are presented. The model socketed caissons were made from aluminium tubing with a structural stiffness closely identical to a solid concrete pile. In the first series of tests, model sockets were tested in axial compression to determine the effect of socket roughness on side resistance. In the second series, model sockets were subjected to lateral loading. The experimental results are compared with existing design methods used to predict ultimate capacity and load deformation response. Data obtained from other model studies and full-scale tests are also presented and compared with the centrifuge modelling data.
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Dykeman et al. (1996) studied this question.