Journal article
Elastic stiffness coefficients for an embedded spudcan in clay
Y Zhang, MJ Cassidy, B Bienen
Computers and Geotechnics | ELSEVIER SCI LTD | Published : 2012
Abstract
The spudcan footings of mobile jack-up platforms have been known to embed several diameters during their installation in soft clay soils. During penetration soil can flow around the spudcan back filling the cavity above. This paper provides the elastic stiffness coefficients for surface to deeply embedded spudcan, as required for predicting the in situ load-displacement behaviour of a jack-up from the wind, wave and currents loading of a large storm. Results from 264 finite element analyses provide 352 dimensionless coefficients for the combined vertical, horizontal and moment elastic stiffness matrix. Coefficients are provided for (i) a representative spudcan shape, (ii) seabed with constan..
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Awarded by Australian Research Council
Funding Acknowledgements
The first author is the recipient of a University of Western Australia SIRF scholarship and an Australia-China Natural Gas Technology Partnership Fund PhD top-up scholarship. The second author is the recipient of an ARC Future Fellowship (FT0990301) and holds the Chair of Offshore Foundations from The Lloyd's Register Educational Trust. He gratefully acknowledges this support. The third author acknowledges the funding support from an Australian Research Council (ARC) Postdoctoral Fellowship (DP11010163).