1. Assistant Professor, State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, Hubei 430071, PR China; formerly, Univ. of Chinese Academy of Sciences, Beijing 100049, PR China (corresponding author).
2. Professor, State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, Hubei 430071, PR China.
3. Lecturer, School of Civil Engineering, Changsha Univ. of Science and Technology, Changsha 410076, China.
4. Associate Professor, State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, Hubei 430071, PR China.
5. Assistant Professor, State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, Hubei 430071, PR China.
6. Postdoctoral Researcher, Key Laboratory of Safety for Geotechnical and Structural Engineering of Hubei Province School of Civil Engineering, Wuhan Univ., Wuhan, Hubei 430072, PR China.