1. Key Laboratory of Gas and Fire Control for Coal Mines (China University of Mining and Technology), Ministry of Education, Xuzhou 221116, China
2. National Engineering Research Center for Coal and Gas Control, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China
3. School of Safety Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China
4. Postdoctor Program, Wanbei Coal Electricity Group Limited Liability Company, Suzhou 234000,Anhui China