1. Key Laboratory of Safety and High-efficiency Coal Mining,Ministry of Education (Anhui University of Science and Technology), Huainan, China
2. Joint National-Local Engineering Research Center for Safe and Precise Coal Mining (Anhui University of Science and Technology), Huainan, China
3. Beijing Key Laboratory of Associated Energy Precision Exploitation, China University of Mining and Technology(Beijing), Beijing, China
4. State Key Laboratory of Water Resource Protection and Utilization in Coal Mining, Beijing, China