1. Ph.D. Candidate, Centre for Offshore Foundation Systems, Univ. of Western Australia, Crawley, WA 6009, Australia (corresponding author).
2. Shell EMI Chair of Offshore Engineering, Univ. of Western Australia, Crawley, WA 6009, Australia.
3. Senior Lecturer, Centre for Offshore Foundation Systems and School of Civil, Environmental and Mining Engineering, Univ. of Western Australia, Crawley, WA 6009, Australia.
4. Professor, School of Civil, Environmental and Mining Engineering, Univ. of Western Australia, Crawley, WA 6009, Australia.