1. Mining College, Guizhou University, Guiyang, China
2. Engineering Center for Safe Mining Technology Under Complex Geologic Condition, Guizhou University, Guiyang, Guiyang, China
3. Institute of Gas Disaster Prevention and Coalbed Methane Development, Guizhou University, Guiyang, China
4. Gas Control Department, Guizhou Panjiang Coal Power Group Technology Research Institute Co, Ltd, Guiyang, China
5. Gas Control Department, Guizhou Wujiang Energy Group Co, Ltd, Guiyang, China