1. Ph.D. Candidate, Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong Univ., Chengdu 611756, People’s Republic of China; Ph.D. Candidate, MOE Key Laboratory of High-Speed Railway Engineering, Southwest Jiaotong Univ., Chengdu 610031, People’s Republic of China; Ph.D. Candidate, State-Province Joint Engineering Laboratory of Spatial Information Technology of High-Speed Railway Safety, Southwest Jiaotong Univ., Chengdu 611756, People’s Republic of China.
2. Professor, Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong Univ., Chengdu 611756, People’s Republic of China; Professor, MOE Key Laboratory of High-Speed Railway Engineering, Southwest Jiaotong Univ., Chengdu 610031, People’s Republic of China; Professor, State-Province Joint Engineering Laboratory of Spatial Information Technology of High-Speed Railway Safety, Southwest Jiaotong Univ., Chengdu 611756, People’s Republic of China (corresponding author).
3. Lecturer, College of Earth Sciences, Chengdu Univ. of Technology, Chengdu 610059, People’s Republic of China.