1. Professor, Research Center of Coastal and Urban Geotechnical Engineering, Dept. of Civil Engineering, Zhejiang Univ., Hangzhou, Zhejiang 310058, China.
2. Ph.D. Student, Dept. of Civil Engineering, Zhejiang Univ., Hangzhou, Zhejiang 310058, China.
3. Professor, School of Recourses and Environmental Engineering, Hefei Univ. of Technology, Hefei, Anhui, 230009, China.
4. Professor, Dept. of Civil and Environmental Engineering, Imperial College, London SW7 2AZ, U.K.
5. Professor, School of Civil Engineering and Architecture, East China Jiaotong Univ., Nanchang, Jiangxi 330013, China; and Dept. of Civil Engineering, Zhejiang Univ., Hangzhou, Zhejiang 310058, China (corresponding author).