EXTREME EROSION EVENT ON AN ARTIFICIAL BEACH
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Keywords

artificial beach
extreme erosion

How to Cite

Moller, J., & Swart, D. (1988). EXTREME EROSION EVENT ON AN ARTIFICIAL BEACH. Coastal Engineering Proceedings, 1(21), 139. https://doi.org/10.9753/icce.v21.139

Abstract

At Oranjemund just north of the mouth of the Orange on the South-West African/ Namibian coastline the Consolidated Diamond Mines (Pty) Limited (CDM) is mining for diamonds in the inshore area. They use an artificially-built seawall of sand to keep the sea out of the paddocks which are being stripped and mined at bedrock level, which is well below sea level. The seawall runs parallel to the original shoreline at a distance of up to 350 m offshore. The beach profile is correspondingly very steep and under most conditions offshore sediment losses occur, which are compensated for by artificial nourishment. During February 1987 offshore losses of about 120 m per running metre of seawall were recorded from above the waterline. In this paper a data set is presented to serve as a basis for the calibration of on-offshore sediment models and some simulations are reported on.
https://doi.org/10.9753/icce.v21.139
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