Seafloor anchoring for platforms in the Messina Strait

Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2010.

Bibliographic Details
Main Author: Manno, Antonioluca
Other Authors: Herbert H. Einstein.
Format: Thesis
Language:eng
Published: Massachusetts Institute of Technology 2011
Subjects:
Online Access:http://hdl.handle.net/1721.1/60768
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author Manno, Antonioluca
author2 Herbert H. Einstein.
author_facet Herbert H. Einstein.
Manno, Antonioluca
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description Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2010.
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spelling mit-1721.1/607682019-04-10T21:10:52Z Seafloor anchoring for platforms in the Messina Strait Manno, Antonioluca Herbert H. Einstein. Massachusetts Institute of Technology. Dept. of Civil and Environmental Engineering. Massachusetts Institute of Technology. Dept. of Civil and Environmental Engineering. Civil and Environmental Engineering. Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2010. Cataloged from PDF version of thesis. Includes bibliographical references (p. 113-117). The importance of properly designing and selecting an anchor is key to reliable techniques for floating offshore platforms including power generation from marine currents. Numerous studies have demonstrated how the uplift capacity of embedment anchors is highly dependent on the soil properties and the anchor geometry. This work focuses in detail on the behavior of vertically loaded circular anchors to keep a floating structure stationary in the offshore environment. The main goal of this research was to find and evaluate an alternative to the foundations employed in the M. Eng. 2009/10 offshore project. The initial option consisted of drag embedment anchors and suction anchors as the foundations for the floating structure located in the Messina Strait that carries a horizontal-axis marine current turbine. Examining past theories and tests, and using dimensional analysis, we determined that circular plate anchors of 4.22 m and 2.72 m in diameter represent a good alternative design for the foundations of the front and back floating platforms. These anchors have an embedment depth-to-diameter ratio of 3 and a plate thickness-to-diameter ratio of 3%. Therefore, in comparison to the initial foundation options developed in the M. Eng. project, the solution with circular anchors has the advantage to reduce the overall dimensions of the anchors, reduce the material necessary for their manufacture, minimize the duration and cost of installation, and provide an efficient anchoring system independent of the local current direction. by Antonioluca Manno. M.Eng. 2011-01-26T14:21:19Z 2011-01-26T14:21:19Z 2010 2010 Thesis http://hdl.handle.net/1721.1/60768 693568990 eng M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 139 p. application/pdf e-it--- Massachusetts Institute of Technology
spellingShingle Civil and Environmental Engineering.
Manno, Antonioluca
Seafloor anchoring for platforms in the Messina Strait
title Seafloor anchoring for platforms in the Messina Strait
title_full Seafloor anchoring for platforms in the Messina Strait
title_fullStr Seafloor anchoring for platforms in the Messina Strait
title_full_unstemmed Seafloor anchoring for platforms in the Messina Strait
title_short Seafloor anchoring for platforms in the Messina Strait
title_sort seafloor anchoring for platforms in the messina strait
topic Civil and Environmental Engineering.
url http://hdl.handle.net/1721.1/60768
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