Journal article
Numerical modelling of the effects of consolidation on the undrained spudcan capacity under combined loading in silty clay
R Ragni, B Bienen, D Wang, D Mašín, MJ Cassidy
Computers and Geotechnics | ELSEVIER SCI LTD | Published : 2017
Abstract
The paper shows the increase in vertical and combined horizontal and moment bearing capacity of jack-up spudcan installed in silty clay, when a load-hold period is accounted for. The numerical implementation of a hypoplastic model for structured clays, combined with large deformation coupled analyses allowed the modelling of the spudcan installation process. Results were mapped into three-dimensional small strain analyses, conducted to investigate the combined loading capacity and describe the yield surface. The underlying failure mechanisms were investigated and increases in capacity due to consolidation determined. Experimental centrifuge data on carbonate silty clay validated the qualitat..
View full abstractGrants
Awarded by Australian Research Council (ARC) Centre of Excellence for Geotechnical Science and Engineering
Awarded by ARC Postdoctoral
Awarded by Laureate Fellowships
Funding Acknowledgements
This work forms part of the activities of the Centre for Offshore Foundation Systems (COFS), which is currently supported as one of the primary nodes of the Australian Research Council (ARC) Centre of Excellence for Geotechnical Science and Engineering (CE110001009) and as a Centre of Excellence by the Lloyd's Register Foundation. Lloyd's Register Foundation helps to protect life and property by supporting engineering-related education, public engagement and the application of research. The second and fifth authors are the recipients of ARC Postdoctoral (DP110101603) and Laureate Fellowships (FL130100059), respectively. The authors are grateful for these supports.