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 :
