1. China Coal Research Institute, Beijing 100013, China
2. State Key Laboratory of the Ministry of Education of China for High-efficient Mining and Safety of Metal Mines, University of Science and Technology Beijing, Beijing 100083, China
3. School of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, China
4. Beijing Key Laboratory for Precise Mining of Intergrown Energy and Resources, China University of Mining & Technology (Beijing), Beijing 100083, China
5. State Key Laboratory Cultivation Base for Gas Geology and Gas Control, Henan Polytechnic University, Jiaozuo 454000, China
6. Tingnan Coal Industry Co., Ltd., Taiyuan, Shanxi 713600, China