1. School of Civil Engineering, Xi’an University of Architecture and Technology, 13# Yanta Rd., Xi’an, Shaanxi, 710055, China
2. Institute of Geotechnical Engineering, Xi’an University of Technology, 5# Jinhua S. Rd., Xi’an, Shaanxi, 710048, China (Corresponding author) e-mail: wangsonghe@xaut.edu.cn, http://orcid.org/0000-0003-1517-5236
3. Institute of Geotechnical Engineering, Xi’an University of Technology, 5# Jinhua S. Rd., Xi’an, Shaanxi, 710048, China
4. Northwest Electric Power Design Institute Co., Ltd. Of China Power Engineering Consulting Group, 22# S. Tuanjie Rd., Xi’an, Shaanxi, 710075, China
5. Department of Civil Engineering, McMaster University, 1280 Main St., West Hamilton, Ontario L8S 4L8, Canada