1. Ph.D. Candidate, Institute of Geotechnical Engineering, School of Transportation, Southeast Univ., Nanjing 210096, China (corresponding author).
2. Professor, College of Civil Engineering, Fuzhou Univ., Fuzhou 350108, China.
3. Lecturer, Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai Univ., Nanjing 210098, China.
4. Professor, Institute of Geotechnical Engineering, School of Transportation, Southeast Univ., Nanjing 210096, China.