1. Ph.D. Candidate, School of Civil, Mining, and Environmental Engineering, Faculty of Engineering, Univ. of Wollongong, Wollongong, NSW 2522, Australia.
2. Professor of Civil Engineering, School of Civil, Mining, and Environmental Engineering, Faculty of Engineering, Univ. of Wollongong, Wollongong, NSW 2522, Australia (corresponding author).
3. Lecturer, School of Civil, Mining, and Environmental Engineering, Faculty of Engineering, Univ. of Wollongong, Wollongong, NSW 2522, Australia.