Affiliation: | 1.Mining College, Guizhou University, Guiyang, 550025, China ;2.State Key Laboratory of Coal Resources and Safety Mining, China University of Mining and Technology, Xuzhou, 221116, China ;3.Key Laboratory of Gas and Fire Control for Coal Mines (China University of Mining and Technology), Ministry of Education, Xuzhou, 221116, China ;4.School of Safety Engineering, China University of Mining and Technology, Xuzhou, 221116, China ; |