1. Associate Research Fellow, Centre for Geomechanics and Railway Engineering, School of Civil Engineering, Faculty of Engineering and Information Sciences, Univ. of Wollongong, Wollongong City, NSW 2522, Australia.
2. Associate Professor, Centre for Geomechanics and Railway Engineering, Univ. of Wollongong, Wollongong City, NSW 2522, Australia.
3. Distinguished Professor of Civil Engineering, Faculty of Engineering, Univ. of Wollongong, Wollongong City, NSW 2522, Australia; Director, Centre for Geomechanics and Railway Engineering, Univ. of Wollongong, Wollongong City, NSW 2522, Australia (corresponding author).
4. Professor, Dept. of Civil Engineering, Laval Univ., Quebec City, QC, Canada QC G1V 0A6.
5. Chair Professor of Soil Mechanics, Dept. of Civil and Environmental Engineering, Hong Kong Polytechnic Univ., Hung Hom, Kowloon, Hong Kong.