1. Ph.D. Candidate, Solid Mechanics Institute, Ningxia Univ., Yinchuan 750021, China; School of Physics and Electronic-Electrical Engineering, Ningxia Univ., Yinchuan 750021, China.
2. Professor, Solid Mechanics Institute, Ningxia Univ., Yinchuan 750021, China; School of Physics and Electronic-Electrical Engineering, Ningxia Univ., Yinchuan 750021, China (corresponding author).
3. Professor, Engineering Research & Development Centre for Underground Technology of Jiangxi Province, East China Jiaotong Univ., Nanchang 330013, China; School of Civil Engineering and Architecture, East China Jiaotong Univ., Nanchang 330013, China.
4. Associate Professor, School of Civil and Environmental Engineering, Univ. of Technology Sydney, Sydney, NSW 2007, Australia. ORCID: .