Journal article
Numerical modelling of undrained capacity of hybrid skirted foundation under combined loading
B Bienen, C Gaudin, MJ Cassidy, L Rausch, OA Purwana
International Journal of Offshore and Polar Engineering | INT SOC OFFSHORE POLAR ENGINEERS | Published : 2012
Abstract
This paper establishes the undrained capacity of a circular skirted mat under uniaxial horizontal and moment loading, respectively, and presents the combined vertical, horizontal and moment (VHM) capacity envelopes for a novel concept for foundations that combines a skirted mat with a suction caisson. This foundation concept enables self-installation and preloading of the footing. Specifically, this research explores the effect of the central caisson on the failure mechanisms and the resulting VHM capacity through finite element analysis. The results demonstrate that the central caisson more than doubles the horizontal capacity while moderately increasing the capacity in the vertical and mom..
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Awarded by Australian Research Council's (ARC)
Awarded by ARC
Awarded by Australian Research Council
Funding Acknowledgements
This project forms part of ongoing collaborations between Keppel Offshore & Marine Technology Centre and the Centre for Offshore Foundation Systems. Support through the Australian Research Council's (ARC) Linkage Program LP0989433 as well as Keppel's contribution and permission to report these results are gratefully acknowledged, along with the fruitful discussions with Dr. Henry Krisdani. The work described here forms part of the activities of the Centre for Offshore Foundation Systems (COFS) and the ARC Centre of Excellence in Geotechnical Science and Engineering. The first and fourth authors acknowledge the support of the ARC through their Australian Postdoctoral (DP110101603) and Future Fellowships (FT0990301), respectively.