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Artificial Frond System for Seabed Scour Control at Wind Farm Platforms in Nantucket Sound, Massachusetts
This paper describes the underwater installation and monitoring of artificial frond mats around the pile supports of a scientific data monitoring tower in Nantucket Sound. The purpose of this investigation is to verify the effectiveness of the mats to reduce and/or prevent scour around offshore monopilestructures proposed for the Cape Wind Project, located on the outer continental shelf approximately five miles off the coast of Massachusetts. The artificial frond mats contain overlapping continuous lines of fronds composed of buoyant, high tensile strength material that provide an unbroken viscous drag layer above the seabed. The viscous drag layer induced by the fronds reduces water velocities exerted by tides, currents, and waves, thereby minimizing the transport of sediments along the bottom and reducing scour. In October 2003, engineer-divers installed two Seabed Scour Control Systems (SSCS) Type-12 Frond Mats at the base of southwest mono-pile of the tower. Follow-up inspections to monitor the performance of the system were conducted by engineer-divers in the summer of 2004.
Artificial Frond System for Seabed Scour Control at Wind Farm Platforms in Nantucket Sound, Massachusetts
This paper describes the underwater installation and monitoring of artificial frond mats around the pile supports of a scientific data monitoring tower in Nantucket Sound. The purpose of this investigation is to verify the effectiveness of the mats to reduce and/or prevent scour around offshore monopilestructures proposed for the Cape Wind Project, located on the outer continental shelf approximately five miles off the coast of Massachusetts. The artificial frond mats contain overlapping continuous lines of fronds composed of buoyant, high tensile strength material that provide an unbroken viscous drag layer above the seabed. The viscous drag layer induced by the fronds reduces water velocities exerted by tides, currents, and waves, thereby minimizing the transport of sediments along the bottom and reducing scour. In October 2003, engineer-divers installed two Seabed Scour Control Systems (SSCS) Type-12 Frond Mats at the base of southwest mono-pile of the tower. Follow-up inspections to monitor the performance of the system were conducted by engineer-divers in the summer of 2004.
Artificial Frond System for Seabed Scour Control at Wind Farm Platforms in Nantucket Sound, Massachusetts
Jones, Bryan N. (author) / Hillier, Timothy S. (author) / Partridge, David J. (author) / Fagan, Leonard (author)
Sixth International Conference on Civil Engineering in the Oceans ; 2004 ; Baltimore, Maryland, United States
Civil Engineering in the Oceans VI ; 246-254
2005-10-18
Conference paper
Electronic Resource
English
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