Zachary Metz_ 浮动式海上风力涡轮机系泊解决方案中的岩土工程挑战.pdf

1、Geotechnical Challenges in Mooring Solutions for Floating Offshore Wind Turbines Presented byZach MetzBerger GeosciencesOceanology International12-14 March 2024London,ExcelBergerGeosciences,2024IntroductionOffshore wind energy market grew by 15%in 2022,reaching 52.7 GW capacityFloating offshore wind

2、 capacity projected to exceed 10 GW by 2030 globallyU.S.aims to reduce floating wind energy costs by over 70%by 2035Technological,investment,and policy decisions critical for industrys next five yearsImage Source:Bauer NREL(2017)BergerGeosciences,2024IntroductionInstalling FOWTs comes with complex g

3、eotechnical challengesOther considerations include stability,harsh marine environment,and maintenanceImage Sources:Bauer NREL(2020);EDP RenewablesBergerGeosciences,2024Need for Thorough Geotechnical InvestigationImage Source:Modified from TDI-Brooks,2021BergerGeosciences,2024Need for Thorough Geotec

4、hnical InvestigationResults are used to design and analyze the effects of:Anchor DesignAerodynamic LoadingHydrodynamic LoadingImage Source:Clement et al.(2021)BergerGeosciences,2024Soil(Seabed)ConditionsImage Sources:Offshore Wind Design ASBergerGeosciences,2024Soil(Seabed)ConditionsSoil stiffness c

5、ould also influence the anchorage performance of the FOWTFor anchor piles,the soil-pile stiffness can be expressed using p-y,t-z,and q-z curves Image Source:Malek&Islam,2010BergerGeosciences,2024Soil(Seabed)ConditionsPermeability of the soil can influence the drainage conditions below the seabedThis

6、 could influence the installation depth of suction caisson anchorsImage Source:GeminiBergerGeosciences,2024Anchor Selection1.Gravity-Base Anchor2.Pile Anchor3.Drag-Embedded Anchor4.Suction-type Anchor5.Torpedo-Embedded Anchor6.Anchor PlatesImage Source:Modified from Vryhof,2018BergerGeosciences,2024