3/19/2024 0 Comments City designer 3 breakwater![]() ![]() For concrete breakwater elements often a variant of the Hudson formula is used. Therefore nowadays for armourstone the Van der Meer formula or a variant of it is used. It is not possible to estimate the degree of damage on a breakwater during a storm with this formula. Also it is not valid for breakwaters and shore protections with an impermeable core. Construction Materials 28 6.1 Necessary Properties 28 6.2 Desirable Properties 28 6.3 Characterizing Coefficients for Armor Units 29 6.4 Armor Unit Types 30 6.5 Armor Selection 35 6. The drawback of the Hudson formula is that it is only valid for relatively steep waves (so for waves during storms, and less for swell waves). 5.3 Run-up in Relation to Breakwater Design 24 5.4 Conclusions about Run-up 25 5.5 Wave Overtopping 25 5.6 Wave Transmission 26 6. This formula has been for many years the US standard for the design of rock structures under influence of wave action Obviously, these equations may be used for preliminary design, but scale model testing (2D in wave flume, and 3D in wave basin) is absolutely needed before construction is undertaken. The armourstone may be considered stable if the stability number N s = H s / Δ D n50 3. ![]() ![]()
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