Physical Modelling for Innovative Onshore and Offshore Foundations
Professor Dong-Soo Kim, Ph.D
Korea Advanced Institute of Science and Technology (KAIST)
Associate Vice President of Research at KAIST
Director of KOCED Geo-Centrifuge Center.
Wednesday December 21 @ 12-1 PM
CUE Conference room (RH411)
Design and validation of the foundation for both onshore and offshore structures are crucial task for the geotechnical engineering community. Various techniques are used to validate the design issues for foundation such as numerical simulations, field tests, as well as laboratory tests. Among them, physical modeling technique has been convincingly adopted in the geotechnical group with the various benefits. Centrifuge methods can provide insight on new phenomena, helping the validation of theoretical methods or numerical simulations with relatively low prices and less effort compared to the field prototype tests. Centrifuge modeling is particularly advantageous as it provides the field stress condition in a small model, and thus can replicate site-specific situations effectively in the laboratory.
This lecture introduces recent centrifuge model studies conducted at the Korea Advanced Institute of Science and Technology (KAIST) related with foundation design issues for onshore and offshore structures. The lecture includes general overview of KAIST centrifuge facilities, evaluation of seismic loads on structures considering soil-foundation-structure interaction, installation related problems of suction bucket for offshore structures, monotonic and cyclic behavior of foundation for offshore wind turbine, and behavior of suction anchor for mooring the floating structure. All of the topics highlight the wide applications and feasibilities of centrifuge modeling to solve the geotechnical issues.