1. State Key Laboratory of High-Efficient Mining and Safety of Metal Mines of Ministry of Education, University of Science and Technology Beijing, Beijing, China
2. School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing, China
3. Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong, China
4. Department of Civil Engineering, Geotechnical Division, Recep Tayyip Erdogan University, Fener, Rize, Turkey