Abstract
A new analysis of the experimental results of Iribarren is undertaken. Using a single parameter, Q, the stability of a rubble mound breakwater is studied. This parameter shows a strong correlation with Iribarren's number ξ = tanα √( H L o ) and thus manifests among others the effect of the wave period on the stability. A function, Q = f ( ξ), which includes two coefficients which depend on slope and type of armour units, is proposed to evaluate the response of a rubble mound breakwater to the action of regular waves. The new formula is applied to tests performed by Hudson, and Ahrens and Mc Cartney with satisfactory results. Finally an interaction curve is presented which defines stability in a wave height-wave period diagram for a given rubble mound breakwater.
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