A macro-element model for predicting the combined load behaviour of spudcan foundations in clay overlying sand

A macro-element model for predicting the load–displacement behaviour of a spudcan foundation in clay overlying sand when subjected to combined vertical, horizontal and moment loading is introduced. Observations from detailed drum centrifuge tests that measured effect underlying layer on are with finite-element results theoretical developments derive components model. The yield surface defined by test suggests as nears layer, absolute capacity remains relatively constant, while vertical capacities increase at approximately same normalised rate. demonstrated accurately predict retrospectively simulating experimental results. This has advantage it can be integrated into structural analyses jack-up platforms required site-specific assessments.