An Empirical Study on the Setting and Evaluation Method of the Controlled Coastlines according to the Hard Defense of Coastal Improvement Project

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In this study, the appropriateness of structure layout design was reviewed by conducting on empirical study on Namhangjin beach to which the hard defense was applied so that an efficient layout design could be made when the hard defense construction was applied in the future coastal improvement projects. As for the research method, the controlled coastlines was set for the target beach, the evaluation shoreline was calculated for the structure, and the accuracy was reviewed by comparing it with the shoreline survey data after the project. In the case of Namhangjin beach, the feasibility of the coastal improvement project was confirmed by this study, and improvements in the wave height transmission rate ERF calculation formula were confirmed.