1. Ph.D. Candidate, School of Civil Engineering, Wuhan Univ., Wuhan 430071, China.
2. Lecturer, Dept. of Road and Bridge Engineering, Zhejiang Highway Technician College, Hangzhou 310000, China.
3. Professor, School of Civil Engineering, Wuhan Univ., Wuhan 430071, China (corresponding author).
4. Engineer, Guangdong Railway Planning and Design Institute Co. LTD., Gonghe West Rd., Yuexiu District, Guangzhou 510000, China.