In addition, Hi-Float provides higher productivity considering the construction yard infrastructure and efficiency of marine operations. Seon Mook LIM, Executive Vice President of HHI, said: “Obtaining the AiP for these innovative floating offshore wind turbine foundations is a meaningful technological milestone that will enable our solutions to contribute to the global decarbonisation effort. The good performance of Hi-Float in offshore environment was verified through numerical analysis and wave basin model testing. A passive ballast system ensures that risk is kept to a minimum during offshore operations. The certificate was delivered to Seon Mook LIM, Executive Vice President of HHI, by Christophe CAPITANT, Chief Country Executive of BV Korea, at a ceremony hosted by HHI Offshore & Industrial Division in Ulsan, Republic of Korea.īased on HHI’s vast experience with offshore projects, the offshore floating wind substructure “Hi-Float” is designed to support a 10MW wind turbine with proven semi-submersible and mooring technology. The theoretical model and the numerical modeling approach presented in this are valuable for practicing engineers in the rational design of piles taking account of the mechanical behavior of expansive soils.Bureau Veritas (BV), a world leader in testing, inspection, and certification, has delivered an Approval in Principle (AiP) to Hyundai Heavy Industries Co., Ltd (HHI) for its design and development of “Hi-Float”, a floating offshore wind turbine foundation. A theoretical model was proposed for the estimation of threshold pile head load which distinguishes whether the pile would experience upward or downward movement upon water infiltration.

Pile behavior in Expansive soil upon Infiltration), which was proposed based on principles of unsaturated soil mechanics. Experimental results were also simulated and interpreted using a computation program, PEI (i.e. Such a phenomenon can be attributed to pile shaft friction reduction in the active zone associated with suction reduction due to water infiltration and volume expansion of the soil. Experimental results suggest pile settlement increases due to water infiltration. In this paper, a single model pile mechanical behavior variations associated with suction changes in an unsaturated expansive soil under a service load were investigated. The mechanical behavior of in-situ pile foundations are significantly influenced by suction changes associated with water infiltration. effective stress) even in expansive soil deposits despite the fact the soil around the pile is in a state of unsaturated condition. Pile foundations are widely designed extending principles of saturated soil mechanics assuming drained conditions (i.e.

Floating foundation in water