(1.School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China; 2.Key Laboratory of High-speed Railway Engineering Southwest Jiaotong University, Ministry of Education, Chengdu 610031, China; 3.Department of Railway Engineering, Sichuan College of Architectural Technology, Chengdu 610399, China; 4.School of Environment and Resources, Southwest Science and Technology University, Mianyang 621010, Sichuan, China)
U418.5