1. School of Resources and Environmental Engineering, Hefei University of Technology, 230 009 Hefei, China
2. Anhui Transport Consulting & Design Institute Co. Ltd., 230 088 Hefei, China
3. Shaanxi Provincial Transport Planning Design and Research Institute Co., Ltd., 710 065 Xi’an, China
4. Beijing Mass Transit Railway Operation Corp. Ltd., 100 044 Beijing, China
5. School of Civil Engineering, Anhui University of Science & Technology, 232 001 Huainan, China
6. Beijing Geotechnical Anchorage Engineering Center, China Jingye Engineering Co., Ltd., 100 088 Beijing, China