1. State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400030, People's Republic of China
2. School of Resources and Safety Engineering, Chongqing University, Chongqing 400030, People's Republic of China
3. State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology, Xuzhou 221116, People's Republic of China
4. School of Mechanics and Civil Engineering, China University of Mining and Technology, Xuzhou 221116, People's Republic of China