1. State Collaboration Innovation Center of Coal Work Safety and Clean-efficiency Utilization, Jiaozuo454000, China
2. College of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo454000, China
3. MOE Engineering Center of Mine Disaster Prevention and Rescue, Jiaozuo454000, China
4. State Key Laboratory Cultivation Base for Gas Geology and Gas Control, Henan Polytechnic University, Jiaozuo454000, China
5. Buertai Coal Mine, Shendong Coal Group, Inner Mongolia Ordos017209, China