1. Engineer, Northwest Electric Power Design Institute Co., Ltd. of China Power Engineering Consulting Group, Xi’an 710075, China; Doctor, Geotechnical Engineering Dept., Nanjing Hydraulic Research Institute, Nanjing 210024, China (corresponding author).
2. Senior Engineer, Geotechnical Engineering Dept., Nanjing Hydraulic Research Institute, Nanjing 210024, China; Key Laboratory of Failure Mechanism and Safety Control Techniques of Earth-Rock Dam of the Ministry of Water Resources, Nanjing 210029, China.