1. Doctoral student, MOE Key Laboratory of High-speed Railway Engineering, Chengdu, Sichuan, P. R. China; Southwest Jiaotong University of Civil Engineering, Chengdu, Sichuan, P. R. China
2. Lecturer, MOE Key Laboratory of High-speed Railway Engineering, Chengdu, Sichuan, P. R. China; Southwest Jiaotong University of Civil Engineering, Chengdu, Sichuan, P. R. China (corresponding author: )
3. Postgraduate student, MOE Key Laboratory of High-speed Railway Engineering, Chengdu, Sichuan, P. R. China; Southwest Jiaotong University of Civil Engineering, Chengdu, Sichuan, P. R. China
4. Professor, MOE Key Laboratory of High-speed Railway Engineering, Chengdu, Sichuan, P. R. China; Southwest Jiaotong University of Civil Engineering, Chengdu, Sichuan, P. R. China