1. Ph.D. Candidate, Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education and Dept. of Geotechnical Engineering, Tongji Univ., 200092 Shanghai, China.
2. Professor, Computational Geotechnics Group, Institute for Soil Mechanics and Foundation Engineering, Graz Univ. of Technology, 8010 Graz, Austria.
3. Professor, Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education and Dept. of Geotechnical Engineering, Tongji Univ., 200092 Shanghai, China (corresponding author).