1. School of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo, Henan, China
2. State Collaborative Innovation Center of Coal Work Safety and Clean-efficiency Utilization, Henan Polytechnic University, Jiaozuo, Henan, China
3. Engineer Research Center of Minister of Education for Coal Mine Disaster Prevention and Emergency Relief, Henan Polytechnic University, Jiaozuo, Henan, China