1. School of Resources and Safety Engineering, Central South University, Changsha, Hunan 410083, China
2. State Key Laboratory of Mining Disaster Prevention and Control Co-founded by Shandong Province and the Ministry of Science and Technology, Shandong University of Science and Technology, Qingdao 266590, China
3. School of Civil Engineering, Changsha University of Science and Technology, Changsha 410114, China