1. Ph.D. Student, School of Highway, Chang’an Univ., Xi’an 710064, China.
2. Professor, School of Highway, Chang’an Univ., Xi’an 710064, China (corresponding author). ORCID: .
3. Professor, Geotechnical Research Centre, Dept. of Civil and Environmental Engineering, Western Univ., London, ON, Canada N6A 5B9.
4. Engineer, Dept. of Planning and Contract, Zhengzhou Communications Planning, Survey and Design Institute, Zhengzhou 450052, China.