Journal article
Predicting jack-up spudcan installation in sand overlying stiff clay
P Hu, MJ Cassidy
Ocean Engineering | PERGAMON-ELSEVIER SCIENCE LTD | Published : 2017
Abstract
There has been a constant trend towards larger mobile jack-ups capable of operating for extended periods in deeper water and in harsher environmental conditions. This is increasing both the size of their spudcan footings and the operational bearing pressures. Though some new analytical methods to predict the load-penetration profile have been proposed, and shown to fit centrifuge experiments well, these methods were calibrated mainly using experimental and numerical data for sand overlying soft clay. This paper reports six centrifuge tests simulating spudcan installation in sand overlying a stiff clay. These are complemented with large-deformation finite element analyses, simulating the cont..
View full abstractGrants
Awarded by Lloyd's Register Foundation
Funding Acknowledgements
This work forms part of the activities of the Centre for Offshore Foundation Systems (COFS), which is supported by the Lloyd's Register Foundation as a Centre of Excellence and currently forms one of the primary nodes of the Australian Research Council Centre of Excellence for Geotechnical Science and Engineering. Lloyd's Register Foundation invests in science, engineering, and technology for public benefit, worldwide. This project received additional support from the ARC Laureate Fellowship (FL130100059). The authors are grateful for this support and also to beam centrifuge technician Mr. Manuel Palacios for his assistance during the experimental work and for fruitful discussions with David Edwards in DNV GL and Youhu Zhang in the Norwegian Geotechnical Institute regarding this work.