ANALYSIS OF THE FAILURE OF THE AUTEC TOTO II DEEP SEA MOOR AND THE PERFORMANCE OF ITS CATHODIC PROTECTION SYSTEM
NAVAL RESEARCH LAB WASHINGTON DC
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The report contains background information on the design and installation of a wire rope three-point deep sea moor which was originally coated with a bituminous substance and the critical areas protected with a magnesium galvanic anode cathodic protection system designed by the Naval Research Laboratory. The report also describes the failure of the moor after 4 12 years service and its subsequent salvage, and presents the results of a study of the corrosion pattern, proposes the cause of failure, and evaluates the performance of the cathodic protection system. Recommendations are presented for the protection of future moors and for possible research directed towards the understanding and prevention of failure of wire rope structures in sea water under conditions of static stress and of fatigue.
- Marine Engineering