1. Professor, Assistant Dean, School of Civil Engineering and Architecture, Southwest Petroleum Univ., Chengdu 610500, PR China.
2. M.S. Student, School of Civil Engineering and Architecture, Southwest Petroleum Univ., Chengdu 610500, PR China.
3. Research and Development Center, Southwest Geotechnical Investigation and Design Institute Co., Ltd., No. 33, Aviation Rd., Longtan Headquarters in Economic City, East Third Ring Rd., Chengdu 610052, PR China (corresponding author).
4. Ph.D. Student, School of Transportation and Logistics, Southwest Jiaotong Univ., Chengdu 611756, PR China.
5. Lecturer, Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong Univ., Chengdu 611756, PR China.
6. Associate Professor, Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong Univ., Chengdu 611756, PR China.
7. Lecturer, School of Civil Engineering and Architecture, Southwest Petroleum Univ., Chengdu 610500, PR China.