Assessing the feasibility of the installation method of screwing for monopiles for offshore wind turbines
E.P. Jongkees (TU Delft - Mechanical Engineering)
J. Jovanova – Mentor (TU Delft - Transport Engineering and Logistics)
H. Polinder – Graduation committee member (TU Delft - Transport Engineering and Logistics)
G. H. Keetels – Graduation committee member (TU Delft - Offshore and Dredging Engineering)
E. Romeijn – Mentor (Huisman Equipment BV)
More Info
expand_more
Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.
Abstract
The demand of offshore wind energy has increased enormously in the last decade, and continues to do so in the foreseeable future. The monopile will remain the most important foundation structure. There is however not yet a durable solution for its main disadvantage; the under water sound radiation during installation. In this report a new, silent installation method is therefore explored: screwing monopile into the ground. In this thesis the interaction between the monopile and soil is explored, along with the addition of a screw thread. Based on this the driving requirements are determined. Then a possible driving mechanism is shown, considering the driving power, connection between the ship and the monopile and driving equipment. Lastly, the implications of the logistics is explored.