1. Associate Professor, Civil Engineering College, Tianjin Chengjian Univ., No. 26 Jinjing Rd., Xiqing District, Tianjin 300384, China.
2. Engineer, Tianjin Transportation Research Institute, Hexi District, Tianjin 300384, China.
3. Professor, Civil Engineering College, Tianjin Chengjian Univ., No. 26 Jinjing Rd., Xiqing District, Tianjin 300384, China (corresponding author).
4. Associate Professor, School of Civil Engineering, Jiangxi Communications Vocational and Technical College, Nanchang 330013, China.