1. Ministry of Education, State Key Laboratory of High-Efficient Mining and Safety of Metal Mines, University of Science and Technology Beijing, Beijing, China
2. Work Safety Key Lab on Prevention and Control of Gas and Roof Disasters for Southern Coal Mines, Hunan University of Science and Technology, Xiangtan, China
3. Institute of Risk Assessment and Control, Guangdong Technology Center of Work Safety, Guangzhou, China
4. Sefit Engineering Technology Group Co. LTD, Qingdao, China
5. Guangdong Academy of Safety Science and Technology, Guangzhou, China