Journal article
Predicting spud can extraction resistance in soft clay
O Kohan, C Gaudin, MJ Cassidy, B Bienen
Geotechnical Engineering | SOUTHEAST ASIAN GEOTECHNICAL SOC | Published : 2014
Abstract
Jack-ups are mobile offshore structures that are frequently relocated to new operation sites. To be relocated, the jack-up footings, known as spudcans need to be extracted from the seabed, using essentially the buoyancy of the hull as extraction force. This operation may be time consuming or even jeopardised if the spudcan extraction resistance is higher than the available extraction force. The maximum extraction (or breakout) resistance consists of suction at the spudcan base, weight of the soil above the spudcan, and soil shear resistance above the spudcan, with the contribution of the suction at the spudcan invert being the dominant component of the breakout resistance. This paper reviews..
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Awarded by Australian Research Council (ARC) Postdoctoral Fellowship
Funding Acknowledgements
This work forms part of the activities of the Centre for Offshore Foundation Systems (COFS), currently supported as a node of the Australian Research Council Centre of Excellence for Geotechnical Science and Engineering and as a Centre of Excellence by the Lloyd's Register Foundation. Lloyd's Register Foundation invests in science, engineering and technology for public benefit, worldwide. This research is supported by the Robert and Maude Gledden Postgraduate Research Scholarships and the Centre for Offshore Foundation Systems (COFS). The fourth author is the recipient of an Australian Research Council (ARC) Postdoctoral Fellowship (DP110101603). This support is gratefully acknowledged.