1. Professor, Dept. of Geotechnical Engineering, Tongji Univ., 1239 Siping Rd., Shanghai 200092, China.
2. Dept. of Geotechnical Engineering, Tongji Univ., 1239 Siping Rd., Shanghai 200092, China.
3. Lecturer, Key Laboratory of Geomechanics and Embankment Engineering of the Ministry of Education, Geotechnical Engineering Research Center of Jiangsu Province, Hohai Univ., 1 Xikang Rd., Nanjing 210098, China; formerly, Dept. of Civil and Environmental Engineering, Hong Kong Univ. of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China (corresponding author).
4. Chair Professor, Dept. of Civil and Environmental Engineering, Hong Kong Univ. of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.