1. Ph.D. Candidate, The Key Laboratory of Road and Traffic Engineering, Ministry of Education, Tongji Univ., Shanghai 201804, China.
2. Professor, The Key Laboratory of Highway Engineering of Ministry of Education, Changsha Univ. of Science and Technology, Hunan 410114, China.
3. Ph.D. Candidate, The Key Laboratory of Highway Engineering of Ministry of Education, Changsha Univ. of Science and Technology, Hunan 410114, China (corresponding author).
4. B.S. Engineer, The Third Construction Engineering Co. Ltd. of China Construction Third Engineering Bureau, Hongshan District, Wuhan City, Hubei Province 430073, China.