1. Ph.D. Candidate, Key Laboratory of Highway Engineering in Special Region of Ministry of Education, Chang’an Univ., Middle Section of Nanerhuan Rd., Xi’an, Shaanxi 710064, China.
2. Professor, Key Laboratory of Highway Engineering in Special Region of Ministry of Education, Chang’an Univ., Middle Section of Nanerhuan Rd., Xi’an, Shaanxi 710064, China (corresponding author).
3. Lecturer, Key Laboratory of Highway Engineering in Special Region of Ministry of Education, Chang’an Univ., Middle Section of Nanerhuan Rd., Xi’an, Shaanxi 710064, China.
4. Ph.D. Candidate, Key Laboratory of Highway Engineering in Special Region of Ministry of Education, Chang’an Univ., Middle Section of Nanerhuan Rd., Xi’an, Shaanxi 710064, China; Dept. of Civil Engineering, School of Engineering, Univ. of Birmingham, Edgbaston B15 2TT, UK.
5. Professor, Key Laboratory of Highway Engineering in Special Region of Ministry of Education, Chang’an Univ., Middle Section of Nanerhuan Rd., Xi’an, Shaanxi 710064, China.