1. State Key Laboratory Cultivation Base for Gas Geology and Gas Control (Henan Polytechnic University), Jiaozuo 454003, China
2. State Key Laboratory of Gas Detecting, Preventing and Emergency Controlling, Chongqing 400037, China
3. China Coal Technology and Engineering Group Chongqing Research Institute, Chongqing 400037, China
4. State Collaborative Innovation Center of Coal Work Safety and Clean-Efficiency Utilization (Henan Polytechnic University), Jiaozuo 454003, China
5. College of Safety Science and Engineering (Henan Polytechnic University), Jiaozuo 454003, China