1. College of Civil Engineering; Central South University; Changsha 410075, China, National Engineering Laboratory for High Speed Railway Construction, Changsha 410075, China and State Key Laboratory of Rail Transit Engineering Information (FSDI); Xi'an 710043 China
2. Department of Civil and Environmental Engineering; University of Maryland; College Park MD 20742 United States
3. College of Civil Engineering; Central South University; Changsha 410075; China and National Engineering Laboratory for High Speed Railway Construction; Changsha 410075 China
4. China Railway First Survey and Design Institute Group Co.; Ltd, Xi'an 710043, China and State Key Laboratory of Rail Transit Engineering Information (FSDI); Xi'an 710043 China
5. China Railway Siyuan Survey and Design Group Co., Ltd; Wuhan 430063 China