1. School of Energy and Mining Engineering, China University of Mining and Technology, Beijing 100083, PR China
2. State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Beijing 100083, PR China
3. School of Mechanics and Civil Engineering, China University of Mining and Technology, Beijing 100083, PR China
4. School of Emergency Management and Safety Engineering, China University of Mining and Technology, Beijing 100083, PR China
5. School of Building Engineering, Hunan Institute of Engineering, Xiangtan, Hunan 411104, PR China