1. Senior Engineer, Geotechnical Engineering Dept., Nanjing Hydraulic Research Institute, 34 Hujuguan Rd., Nanjing 210024, China (corresponding author).
2. Professor, Key Laboratory of Failure Mechanism and Safety Control Techniques of Earth-Rock Dams, Ministry of Water Resource, 225 Guangzhou Rd., Nanjing 210029, China.
3. Ph.D. Candidate, Geotechnical Engineering Dept., Nanjing Hydraulic Research Institute, 34 Hujuguan Rd., Nanjing 210024, China.