Single layer armour units for breakwaters

Allsop, W. and Herbert, D.M. (1991) Single layer armour units for breakwaters. Technical Report. HR Wallingford.

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Abstract

Rubble mound breakwaters are widely used to protect harbours and coastal areas from the effects of wave action. During previous research for the Department of Environment under contract PECD 7/6/52, and the Ministry of Agriculture Fisheries and Food under commission CSA 557, a study was conducted of the performance of many types of concrete armour units (Ref 1). This study identified the methods available to determine the strength of concrete armour units, and the loads to which they might be exposed. That study did not however deal with the class of high efficiency hollow cube units that are laid in a single layer. A separate research project was initiated "to identify and develop techniques to allow the quantitative evaluation of hydro-dynamic effects and loadings on single layer concrete armour units to rubble mound breakwaters and sea walls".

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