1. Senior Engineer, Dept. of Geotechnical Engineering, Nanjing Hydraulic Research Institute, 34 Hujuguan Rd., Nanjing 210024, China (corresponding author).
2. Professor and Senior Engineer, Key Laboratory of Failure Mechanism and Safety Control Techniques of Earth-Rock Dams, Ministry of Water Resource, 223 Guangzhou Rd., Nanjing 210029, China.
3. Senior Engineer, Dept. of Geotechnical Engineering, Nanjing Hydraulic Research Institute, 34 Hujuguan Rd., Nanjing 210024, China.