1. Ph.D. Student, School of Civil and Resource Engineering, The Univ. of Western Australia, Crawley, Perth WA 6009, Australia (corresponding author).
2. Ph.D. Student, School of Civil and Resource Engineering, The Univ. of Western Australia, Crawley, Perth WA 6009, Australia.
3. Professor, School of Civil and Resource Engineering, The Univ. of Western Australia, Crawley, Perth WA 6009, Australia.