INFLUENCE OF DAMAGED GROINS ON NOURISHED SEASHORE

Rafal Ostrowski, Zbigniew Pruszak, Jan Schönhofer, Marek Szmytkiewicz, Piotr Szmytkiewicz

Abstract


The system of timber palisade groins can be very helpful as a measure coexisting with artificial nourishment and increasing the lifetime of beach fills. To this end, good condition of groins and their permanent contact with land is necessary. On the basis of theoretical modelling and field surveys a conclusion has been formulated that coexistence of complete groins with artificial shore nourishment causes that about 30% less sediment is washed away from the nearshore zone than for beach fill without groins.

Keywords


groins; beach nourishment; erosion; field survey; optimization

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