1. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China (Corresponding author), e-mail: plin@stu.edu.cn
2. Department of Civil and Environment Engineering, Shantou University, 243 Daxue Rd., Shantou 515063, China, http://orcid.org/0000-0001-5377-8519 (A.G.)
3. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China