1. Associate Professor, School of Civil Engineering, Central South Univ., Changsha 410075, China; Researcher, National Engineering Laboratory for High Speed Railway Construction, Changsha 410075, China.
2. Masters Student, School of Civil Engineering, Central South Univ., Changsha 410075, China; Research Assistant, National Engineering Laboratory for High Speed Railway Construction, Changsha 410075, China (corresponding author).
3. Assistant Engineer, Guizhou Transport Science Research Institute Shares Co., Ltd., Guiyang 550008, China; formerly, Masters Student, School of Civil Engineering, Central South Univ., Changsha 410075, China.
4. Professor, Chinese Academy of Engineering, School of Civil Engineering, Central South Univ., Changsha 410075, China.