1. Professor, State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing Univ., Chongqing 400030, China; Researcher, Key Laboratory of New Technology for Construction of Cities in Mountain Area, Chongqing Univ., Chongqing 400045, China; Professor, School of Civil Engineering, Chongqing Univ., Chongqing 400045, China (corresponding author).
2. Ph.D. Candidate, School of Civil Engineering, Chongqing Univ., Chongqing 400045, China.
3. Regents' Professor Emeritus, Dept. of Civil Engineering and Engineering Mechanics, Univ. of Arizona, Tucson, AZ 85721.
4. Researcher, School of Civil Engineering, Chongqing Univ., Chongqing 400045, China.
5. Professor and Vice President, Chongqing Univ., Chongqing 400450, China.