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http://dx.doi.org/10.9765/KSCOE.2018.30.3.123

Analysis of Change Process in the Design Conditions of Harbor Breakwaters in Korea  

Hong, Keun (Port & Harbor Division, Samyoung Technology Co., Ltd.)
Kang, Yoon-Koo (Coastal and Harbor Disaster Prevention Research Institute, Sekwang Engineering Consultants Co., Ltd.)
Kim, Hong-Jin (Fisheries Science & Technology Center, Pukyong National University)
Yoon, Han-Sam (Department of Ecological Engineering, Pukyong National University)
Ryu, Cheong-Ro (Department of Ocean Engineering, Pukyong National University)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.30, no.3, 2018 , pp. 123-133 More about this Journal
Abstract
We studied the change process in the design parameters (conditions) of structural sections of vertical/slope breakwaters in Korea over the long term based on an analytical review of the latest design recommendations. This study found the following. 1) Design wave heights have increased gradually with the increase in the wave height of deep sea waves. 2) The relative design wave height ($H_{1/3}/h$) changed from 0.5 in the 1970s to 0.6~0.7 today. This means that design wave heights are overestimated compared with the water depth. 3) Before 1999, the design water level was based on high water during an average spring tide, but this has been increased since 2000 because of additional consideration of anomalous sea levels. 4) Before 1999, the relative crest heights of the investigated breakwaters was 0.6~0.7, but after 1999 this increased to a mean of 1.0 and maximum of 1.26.
Keywords
harbor breakwater; design wave height; crest height; change process;
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