Abstract
Various types ofwave-absorbing works have been developed to prevent coasts fromwave-induced disasters and have been used with remarkable success. However, the effective dissipation ofwave energy generates a large amount ofsea water spray. When it is transported landward by a strong wind, severe salt damage will be caused along the coastal region. In this study, the generation of spray from a typical wave-absorbing seawall has been investigated experimentally. A parapet installed on the top ofthe seawall is very effective for the reduction of spray quantity. A perforated seawall method, which is proposed as a new method to reduce the spray generation, has been also examined. As a result, the new method can decrease 30-50 % of spray quantity generated by the typical seawall method.
