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 400044, China
3. School of Geology and Mining Engineering, Xinjiang University, Urumqi 830046, China
4. Institute of Safety and Management Engineering, Hunan Institute of Technology, Hengyang 421002, China
5. Technology Department, Chongqing Vocational Institute of Engineering, Chongqing 400000, China