1. Professor, Hunan Provincial Key Laboratory of Safe Mining Techniques of Coal Mines, Work Safety Key Lab on Prevention and Control of Gas and Roof Disasters for Southern Coal Mines, Hunan Univ. of Science and Technology, Xiangtan, Hunan 411201, China.
2. Delbert R. Lewis Distinguished Professor, Dept. of Civil and Architectural Engineering and Mechanics, Univ. of Arizona, Tucson, AR 85721 (corresponding author). ORCID: .
3. Master Student, Hunan Provincial Key Laboratory of Safe Mining Techniques of Coal Mines, Work Safety Key Lab on Prevention and Control of Gas and Roof Disasters for Southern Coal Mines, Hunan Univ. of Science and Technology, Xiangtan, Hunan 411201, China.
4. Professor, China Geological Survey, Beijing 100081, China.