해면매립에 따른 도구 해빈의 해안선변화 장기예측

Long term prediction of shoreline change due to a reclamation in Dogu beach

The long term prediction of shoreline change around coastal structures due to a reclamation in Dogu Beach is performed. In the calculation of shoreline change, it is important to estimate the breaking wave directions and heights. To solve these problems, the mild slope equation of elliptic type is adopted. The total longshore sediment transport rates are considered with the spatial distribution of wave height and the interaction of seawall. The result of shoreline change shows a qualitatively good agreement with the pattern of wave-induced current. After 5 years, the maximum net change between before and after reclamation increases to be 6m whinin 100m of coast line of the shadow zone.