Abstract
In order to investigate the jack-up spudcan-soil interaction behaviors, numerical simulation and design of experiments (DOE) of a jack-up were presented based on elastic-plastic foundation model, in operating and survival conditions. Spudcan load assessment indexes called RVAB, RHAB and RMAB were put forward by the authors, which were also the responses of the DOE. The results showed that, for both conditions, vertical load V on spudcan A is higher than that on spudcan B, while horizontal load H2 and moment M3 on spudcan A are lower than that on spudcan B. Yield was found on the Spudcan A-soil interface, and the plastic components in survival condition are higher than the ones in operating condition. Friction angle and unit weight are two important soil parameters that have a great effect on the spudcan-soil interaction behaviors.
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