1. State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource & Hydropower, Sichuan University, Chengdu 610065, China
2. School of Resources and Safety Engineering, Central South University, Changsha 410083, China
3. School of Resources and Safety Engineering, Wuhan Institute of Technology, Wuhan 430074, China
4. Hubei Sanning Mining Co. Ltd, Yichang 443100, Hubei, China