Xinglei Cheng: Associate professor Xinglei Cheng received his PhD degree in 2016 from Tianjin University, and then worked as a teacher of department of Civil Engineering at Tianjin Chengjian University up to now. During this period, he conducted research as a postdoctoral fellow at Beijing University of Technology and as a visiting scholar at the Western University in Canada. His research interests include dynamic characteristics and constitutive theory of soft clays, numerical analysis method and dynamic bearing performance of offshore foundations. He has undertaken multiple projects funded by the National Natural Science Foundation of China and the Natural Science Foundation of Tianjin city, and the Postdoctoral Research Foundation of China. He has published more than 40 academic papers on international journals. He has won many honors and awards, such as the Second Prize for Science and Technology Progress in Tianjin (1/8), and the Special Prize for Science and Technology Progress of Zhejiang Society of Geotechnical Mechanics and Engineering (11/15).

Dechun Lu: Professor Dechun Lu received his PhD degree in 2006 from Beihang University and then worked as a teacher of the Faculty of Architecture, Civil and Transportation Engineering of Beijing University of Technology up to now. His research interests include earthquake resistance and disaster prevention of urban infrastructure, construction and operation maintenance of urban underground engineering, numerical algorithms and simulations for geotechnical engineering problems, strength criteria and elastoplastic constitutive models for soil and concrete, and intelligent geotechnical engineering. Prof. Lu undertook multiple national fund projects of China, such as National Science Fund for Distinguished Young Scholars, Key Projects of National Self Science Foundation, and so on. He has published more than 100 academic papers on international journals. He has won many honors and awards, such as the Second Prize for the State Scientific and Technological Progress Award and "The 15th Science and Technology Award for Chinese Youth.

Piguang Wang: Professor Wang Piguang received his Ph.D. degree in 2017 from Beijing University of Technology and then he commenced his postdoctoral research at School of Civil Engineering Tsinghua University. And he worked as a teacher of Faculty of Architecture, Civil and Transportation Engineering of Beijing University of Technology up to now. His research interests include bridge seismic engineering, seismic and disaster mitigation of offshore engineering structures. Prof. Wang undertook 2 projects funded by National Natural Science Foundation of China and 1 project funded by China Postdoctoral Science Foundation. He is a core member of the National Natural Science Foundation of China Innovation Research Group on "Seismic Resistance and Vibration Control of Major Engineering Structures" and the Ministry of Education Innovation Team on "Seismic Mitigation of Civil Engineering". He has been recognized as an outstanding talent at Beijing University of Technology. He has published more than 100 academic papers, published one Chinese monograph, authorized 6 invention patents, and registered 4 software copyrights. He has awarded the Second Prize for Scientific and Technological Progress at the provincial and ministerial levels for one time.

Introduction.- A simple single bounding surface model of undrained saturated clays.- A cyclic p-y elastoplastic model applied to lateral loaded pile in soft clays.- Lateral cyclic responses of OWT monopile in soft clays.- Seismic response of OWT monopile in clays.- Dynamic responses of OWT tripod pile in clays.- Seismic responses of OWT monopod suction bucket in clays.- Lateral cyclic responses of OWT tripod suction bucket in clays.- Seismic responses of OWT tripod suction bucket in clays.- Summary and prospect.