1. Beijing Jingtou Transportation Development Co., Ltd., Beijing 102629, China
2. Qingdao Municipal Group Co., Ltd., Qingdao 266003, China
3. Department of Civil Engineering, Qingdao University of Technology, Qingdao 266033, China
4. CCCC First Harbor Engineering Co., Ltd., Tianjin 300461, China
5. The Second Engineering Co., Ltd., of CCCC First Harbor Engineering Co., Ltd., Qingdao 266071, China
6. Qingdao Municipal Engineering Design Research Institute Co., Ltd., Qingdao 266061, China
7. School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China