The undrained uniaxial bearing capacities of skirted footings for offshore structures, namely skirted spudcans, were investigated by means of finite element analysis (FEA). In order to increase the fixity and moment capacity of conventional spudcans, peripheral skirts are fitted to the shallow footings. Additional capacity is acknowledged by the offshore industry, but no formal recommendations have been established to quantify the capacity increase. The present paper assesses the behavior of skirted spudcans subjected to pure vertical, horizontal and moment loading on normally consolidated clay. The resulting bearing capacity factors and the failure mechanisms are presented and compared to both solid embedded footings and circular skirted footings solutions found in the literature.
- Ocean, Offshore and Arctic Engineering Division
Uniaxial Bearing Capacity Factors and Failure Mechanisms for Skirted Spudcans
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Vulpe, C, & Gaudin, C. "Uniaxial Bearing Capacity Factors and Failure Mechanisms for Skirted Spudcans." Proceedings of the ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering. Volume 6: Polar and Arctic Sciences and Technology; Offshore Geotechnics; Petroleum Technology Symposium. Nantes, France. June 9–14, 2013. V006T10A014. ASME. https://doi.org/10.1115/OMAE2013-10254
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