1. Ph.D. Candidate, College of Civil and Transportation Engineering, Hohai Univ., No. 1 Xikang Rd., Nanjing City, Jiangsu Province 210098, China (corresponding author).
2. Associate Professor, College of Civil and Transportation Engineering, Hohai Univ., No. 1 Xikang Rd., Nanjing City, Jiangsu Province 210098, China.
3. Professor, College of Civil and Transportation Engineering, Hohai Univ., No. 1 Xikang Rd., Nanjing City, Jiangsu Province 210098, China.