1. Hebei Xiongan Rongwu Expressway Co., Baoding, People’s Republic of China
2. School of Civil Engineering, Southwest Jiaotong University, Chengdu, People’s Republic of China
3. Key Laboratory for Highway Engineering of Sichuan Province, Southwest Jiaotong University, Chengdu, People’s Republic of China
4. Hebei Transportation Planning and Design Research Institute Co., Shijiazhuang, People’s Republic of China
5. China Railway Second Bureau Fourth Engineering Co., Chengdu, People’s Republic of China