1. Professor, School of Civil Engineering, Qingdao University of Technology, Qingdao, China,
2. PhD Candidate, Institute of Geotechnical Engineering, Southeast University, Nanjing, China,(corresponding author)
3. Graduate Research Assistant, Department of Civil and Environmental Engineering, Pennsylvania State University, University Park, PA, USA,
4. Engineer, CHN Energy Baoshen Railway Group Co. Ltd., Baotou, China,