1. Lecturer, Centre for Offshore Foundation Systems, Univ. of Western Australia, Crawley 6009 WA, Australia.
2. Principal Engineer, Advanced Geomechanics, Nedlands 6009 WA, Australia.
3. Graduate of the Civil Engineering Dept., Univ. of Western Australia, 6907, Nedlands, WA, Australia.
4. Professor, Centre for Offshore Foundation Systems, Univ. of Western Australia, 6907, Nedlands, WA, Australia.