1. Assistant Professor, Research Institute of Geotechnical Engineering and Information Technology, School of Engineering, Sun Yat-sen Univ., Guangzhou 510275, China (corresponding author).
2. Associate Professor, Dept. of Civil Engineering, Univ. of Hong Kong, Hong Kong, China; Distinguished Visiting Professor, Shanghai Jiao Tong Univ., Shanghai, China.
3. Professor, Research Institute of Geotechnical Engineering and Information Technology, School of Engineering, Sun Yat-sen Univ., Guangzhou 510275, China.