1. Assistant Professor, Dept. of Civil Engineering, Indian Institute of Technology, Madras, Chennai-36, India; formerly, Research Fellow, Centre for Soft Ground Engineering, National Univ. of Singapore, Singapore.
2. Associate Professor, Centre for Soft Ground Engineering, National Univ. of Singapore, 1 Engineering Dr., Singapore 0511.
3. Formerly, Assistant Professor, Centre for Soft Ground Engineering, National Univ. of Singapore, 1 Engineering Dr., Singapore 0511.
4. Research Scholar, Centre for Soft Ground Engineering, National Univ. of Singapore, 1 Engineering Dr., Singapore 0511.