1. Ph.D. Student, School of Civil Engineering, Chongqing Univ., Chongqing 400044, China.
2. Professor, School of Civil Engineering, Chongqing Univ., Chongqing 400044, China; Key Laboratory of New Technology for Construction of Cities in Mountain Area of the Ministry of Education, Chongqing Univ., Chongqing 400044, China; State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing Univ., Chongqing 400044, China (corresponding author).
3. Hubei Center for Patent Examination Cooperation of the Patent Office of the State Intellectual Property Office, Wuhan 43000, China.