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THE INFLUENCE OF HYDROTECHNICAL CONSTRUCTIONS ON THE ROMANIAN MORPHODYNAMICS COAST
Abstract
The most important problems with a negative impact for Romanian coast, the erosion phenomen, are given by the numerous conflicts between the development of various economic activities and it is necessary to implement a system for preventing the further deterioration of shoreline. Coastal protection systems can be represented by linear structures perpendicular to the shore, called groynes. The groynes trapping sand on the upstream side and in this way, protect the coast behind the sand filet. The protection depends on the stability of this sand filet under extreme conditions. Groynes can have special shapes and depends the type of protection which is necessary. In this paper we propose to analyze the influence of groynes on the shoreline, including the sediment transport, taking into account the type of coastal zone. We will see the coastal profile, the distribution of the littoral drift in the coastal profile and the evolution of the shore according to different sizes of groynes over a set time period. The erosion problem will be solved only on the upstream side of the groyne for a length and depends on the length of the groyne for the given wave climate.
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