1. Postdoctoral Research Associate, School of Civil and Mechanical Engineering, Curtin Univ., Kent St., Bentley, WA 6102, Australia; formerly, Ph.D. Scholar, School of Civil, Mining and Environmental Engineering, Univ. of Wollongong, Wollongong, NSW 2522, Australia.
2. Associate Professor, School of Civil, Mining and Environmental Engineering, Univ. of Wollongong, Wollongong, NSW 2522, Australia (corresponding author).
3. Ph.D. Candidate, School of Civil, Mining and Environmental Engineering, Univ. of Wollongong, Wollongong, NSW 2522, Australia.