1. Key Laboratory of Ministry of Education for Efficient Mining and Safety of Metal Mines, School of Civil and Resource Engineering, University of Science and Technology Beijing, P.R. China
2. State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Xuzhou, Jiangsu, China
3. Shandong Iron and Steel Group Co. Ltd, Jinan, Shandong, China
4. Norman B. Keevil Institute of Mining Engineering, University of British Columbia, Vancouver, British Columbia, Canada
5. Western Australian School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, Perth, Western Australia, Australia