1. Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, China
2. Jiangsu Research Center for Geotechnical Engineering Technology, Hohai University, Nanjing 210098, China
3. Key Laboratory of Geological Hazards on Three Gorges Reservoir Area, Ministry of Education, China Three Gorges University, 8 Daxue Road, Yichang 443002, China
4. China Three Gorges Projects Development Co., Ltd, Chengdu 610000, China