1. Professor, State Key Laboratory of Hydraulics and Natural River Engineering, College of Water Resource and Hydropower, Sichuan Univ., Chengdu 610065, People’s Republic of China.
2. Professor, School of Civil Engineering, Univ. of Leeds, Leeds LS2 9JT, U.K.; State Key Laboratory of Hydraulics and Natural River Engineering, Sichuan Univ., Chengdu 610065, People?s Republic of China; formerly, Nottingham Centre for Geomechanics, Univ. of Nottingham, Nottingham NG7 2RD, U.K.
3. Professor, State Key Laboratory of Hydraulics and Natural River Engineering, College of Water Resource and Hydropower, Sichuan Univ., Chengdu 610065, People’s Republic of China (corresponding author).
4. Engineer, State Key Laboratory of Hydraulics and Natural River Engineering, College of Water Resource and Hydropower, Sichuan Univ., Chengdu 610065, People’s Republic of China.