1. State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China
2. School of Resources and Safety Engineering, Chongqing University, Chongqing 400030, China
3. School of Civil Engineering, Shijiazhuang Tiedao University, Heibei 050043, China
4. School of Safety Science and Engineering, Liaoning Technical University, Liaoning 125105, China
5. Faculty of Architecture and Civil Engineering, Huaiyin Institute of Technology, Jiangsu 223001, China
6. Sichuan Coal Group Furong Company, Sichuan 644002, China