1. Lecturer, Dept. of Civil Engineering, Tianshui Normal Univ., Tianshui 741000, PR China.
2. Professor, Dept. of Civil Engineering, Lanzhou Jiaotong Univ., Lanzhou 730070, PR China (corresponding author).
3. Assistant Researcher, Dept. of State Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources., Lanzhou 730000, PR China.
4. Lecturer, Dept. of Civil Engineering, Tianshui Normal Univ., Tianshui 741000, PR China. ORCID: .
5. Graduate Student, Dept. of Civil Engineering, Lanzhou Jiaotong Univ., Lanzhou 730070, PR China.