DocumentCode
2841616
Title
High-capacity, deep-water, free-fall anchor
Author
Atturio, J.M. ; Valent, P.J.
Author_Institution
Civil Engineering Laboratory, NCBC, Port Hueneme, CA, USA
fYear
1977
fDate
17-19 Oct. 1977
Firstpage
592
Lastpage
596
Abstract
Free-falling is being explored as a means of lowering to the seafloor the 33 m (110 ft) diameter, 3 Gg ( 
lb) anchors for the U.S. Energy Research and Development Administration\´s (ERDA) Ocean Thermal Energy Conversion (OTEC) Power Plants. Exploration of the free-fall lowering concept follows selection of the deadweight anchor type, over the pile and drag embedment anchor types, as the best, in general, for OTEC needs. A scaled model of the free-fall, deadweight anchor has been successfully tested at the Civil Engineering Laboratory. The model proved self-righting, totally free of side-slip motion, and nearly free of pitching motion during descent. High lateral load capacity is provided by radial shear keys protruding beneath the anchor base.
lb) anchors for the U.S. Energy Research and Development Administration\´s (ERDA) Ocean Thermal Energy Conversion (OTEC) Power Plants. Exploration of the free-fall lowering concept follows selection of the deadweight anchor type, over the pile and drag embedment anchor types, as the best, in general, for OTEC needs. A scaled model of the free-fall, deadweight anchor has been successfully tested at the Civil Engineering Laboratory. The model proved self-righting, totally free of side-slip motion, and nearly free of pitching motion during descent. High lateral load capacity is provided by radial shear keys protruding beneath the anchor base.Keywords
Assembly systems; Building materials; Concrete; Costs; Marine vehicles; Oceans; Petroleum; Resists; Sea floor; Soil;
fLanguage
English
Publisher
ieee
Conference_Titel
OCEANS '77 Conference Record
Conference_Location
Los Angeles, CA, USA
Type
conf
DOI
10.1109/OCEANS.1977.1154324
Filename
1154324
Link To Document