1. Professor, School of Civil Engineering and Architecture, Wuhan Univ. of Technology, 122 Luoshi Rd., Wuhan 430070, China (corresponding author).
2. Glenn L. Parker Professor, Dept. of Civil, Environmental, and Architectural Engineering, Univ. of Kansas, 1530 West 15th St., Lawrence, KS 66045-760.
3. Geotechnical Researcher, Deltares, 1 Boussinesqweg, Delft MH 2600, Netherlands.
4. Graduate Student, School of Civil Engineering and Architecture, Wuhan Univ. of Technology, 122 Luoshi Rd., Wuhan 430070, China.