1. Ph.D. Student, Dept. of Civil Engineering, Monash Univ., VIC 3800, Australia.
2. Senior Lecturer, Dept. of Civil Engineering, Monash Univ., VIC 3800, Australia.
3. Senior Principle Research Scientist, Div. of Petroleum Resources, CSIRO, Clayton, Australia.
4. Associate Professor, Dept. of Civil Engineering, Monash Univ., VIC 3800, Australia.
5. Formerly, Student, Dept. of Civil Engineering, Monash Univ., VIC 3800, Australia.