1. Associate Professor, Ministry of Education Key Laboratory of Soft Soils and Geoenvironmental Engineering, Dept. of Civil Engineering, Zhejiang Univ., Hangzhou 310058, China.
2. Ph.D. Candidate, Ministry of Education Key Laboratory of Soft Soils and Geoenvironmental Engineering, Dept. of Civil Engineering, Zhejiang Univ., Hangzhou 310058, China.
3. Senior Lecturer, Geoenvironmental Research Centre, Cardiff School of Engineering, Cardiff Univ., Cardiff, CF24 3AA, Wales, U.K. (corresponding author).
4. Professor, Ministry of Education Key Laboratory of Soft Soils and Geoenvironmental Engineering, Dept. of Civil Engineering, Zhejiang Univ., Hangzhou 310058, China.