1. Associate Professor, School of Civil Engineering, Beijing Jiaotong Univ., Beijing 100044, China. ORCID: .
2. Master Student, School of Civil Engineering, Beijing Jiaotong Univ., Beijing 100044, China.
3. Assistant Engineer, Infrastructure Inspection of China Academy of Railway Sciences, Beijing 100044, China.
4. Master Student, School of Civil Engineering, Beijing Jiaotong Univ., Beijing 100044, China (corresponding author). ORCID: .