1. Lecturer, City Univ. of Hong Kong, Dept. of Building and Construction, Hong Kong.
2. Senior Lecturer, Univ. of Cambridge, Engineering Dept., Cambridge CB2 1PZ, UK.
3. Senior Geotechnical Engineer, STV Incorporated, New York.
4. Professor, Univ. of Cambridge, Dept. of Engineering, Cambridge CB2 1PZ, UK.
5. Professor, Chiba Institute of Technology, Dept. of Civil Engineering, Chiba, Japan.