1. Main Roads, Western Australia; formerly, Ph.D. Student, Centre for Offshore Foundation Systems, Univ. of Western Australia, Crawley, WA 6009, Australia.
2. Research Associate, Centre for Offshore Foundation Systems, Univ. of Western Australia, Crawley, WA 6009, Australia.
3. Professor, Centre for Offshore Foundation Systems, Univ. of Western Australia, Crawley, WA 6009, Australia (corresponding author).