1. Professor, Key Laboratory of Ministry of Education on Safe Mining of Deep Metal Mines, Northeastern Univ., Shenyang 110819, P.R. China.
2. Ph.D. Student, Key Laboratory of Ministry of Education on Safe Mining of Deep Metal Mines, Northeastern Univ., Shenyang 110819, P.R. China.
3. Lecturer, Key Laboratory of Ministry of Education on Safe Mining of Deep Metal Mines, Northeastern Univ., Shenyang 110819, P.R. China (corresponding author).
4. Master’s Student, Key Laboratory of Ministry of Education on Safe Mining of Deep Metal Mines, Northeastern Univ., Shenyang 110819, P.R. China.