1. State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Huainan, Anhui 232001, China
2. School of Safety Science and Engineering, Anhui University of Science and Technology, Huainan, Anhui 232001, China
3. State Key Laboratory of the Gas Disaster Detecting Preventing and Emergency Controlling, China Coal Technology and Engineering Group Chongqing Research Institute, Chongqing 400037, China
4. Gas Research Branch, China Coal Technology and Engineering Group Chongqing Research Institute, Chongqing 400037, China
5. State Key Laboratory of Coal Mine Disaster Dynamics and Control, School of Resources and Safety Engineering, Chongqing University, Chongqing 400044, China