Armor Stability of Overtopped Breakwaterby Patrick T. Lording, (M.ASCE), Proj. Engr.; Marine Engrg., Pipeline and Production Service Div., Bechtel Inc., San Francisco, CA,
John R. Scott, (A.M.ASCE), Sr. Engr.; Marine Engrg., Pipeline and Production Service Div., Bechtel Inc., San Francisco, CA,
Serial Information: Journal of the Waterways, Harbors and Coastal Engineering Division, 1971, Vol. 97, Issue 2, Pg. 341-354
Document Type: Journal Paper
Model tests were performed to assist the selection of stable armor sizes for the Pilgrim Nuclear Power Station breakwaters. Tests were performed on typical breakwater trunk and head sections under breaking wave conditions. The study indicated that for each armor zone there is a particular water depth at which maximum damage to that armor zone will occur. For upper level armor this water depth was less than the maximum design water stage, indicating that maximum damage to the breakwater armor will not necessarily occur under the maximum wave heights possible. The slope of the leeside was also found to be of significance for stability of armor in upper levels. More comprehensive model investigations may show that it is possible to apply existing empirical formulas for nonovertopped breakwaters to overtopped conditions, provided that an appropriate critical still water depth is used for each armor zone, and consideration is given to the leeside slope.
Subject Headings: Armor units | Breakwaters | Wave overtopping | Power plants | Breaking waves | Model tests | Water level | Nuclear power
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