1. Professor, State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing Univ., Chongqing 400030, China; Professor, 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 400450, China (corresponding author).
2. Regents’ Professor Emeritus, Dept. of Civil Engineering and Engineering Mechanics, Univ. of Arizona, Tucson, AZ, 85721.