MEW DESIGNS FOR BEACH PROTECTION STRUCTURES

G.D. Khaskhachikh, G.A. Tsaturiyan, Ya. S. Shulgin

Abstract


Along some length of the Black Sea coast line there are beach protection structeres largely represented by groins and traverses in conjunction with wave resisting embankment walls. The groins are built of 30 to 100 t concrete blocks and set on a rubble-mound foundation levelled by sea divers. In the course of building and exploitation of these structures, a number of disadvantages have been revealed. These ares - The groin structure is affected by the waves that scour the rubble-mound foundation at the bottom and thereby disturb it. Failures occur more frequently at the head (seaward) part of the groin; - The rubble-mound is concerned with having to perform a great deal of heavy and harmful to health diving job, such as underwater excavation, filling and levelling the stone material, etc.; - The rubble-mound cost and labour involved are estimated to be high.

Keywords


beach protection; coastal structures

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