1. Doctoral Student, School of Resources and Safety Engineering, Central South Univ., Changsha 410083, China.
2. Professor, School of Resources and Safety Engineering, Central South Univ., Changsha 410083, China (corresponding author).
3. Assistant Professor, School of Resources and Safety Engineering, Central South Univ., Changsha 410083, China.
4. Master’s Degree Student, School of Resources and Safety Engineering, Central South Univ., Changsha 410083, China.