1. School of Resources Environment and Safety Engineering, University of South China, Hengyang 421001, China
2. School of Resources and Safety Engineering, Central South University, Changsha 410083, China
3. State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China
4. School of Civil Engineering, Southeast University, Nanjing 211189, China