Development of a New Concrete Armor Unit for High Waves
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Title
- Development of a New Concrete Armor Unit for High Waves
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Author(s)
- Park, Young Hyun; Oh, Young-Min; Ahn, Sung Mo; Han, Taek Hee; Kim, Young-Taek; Suh, Kyung-Duck; Won, Deokhee
- KIOST Author(s)
- Park, Young Hyun(박영현); Oh, Young Min(오영민); Han, Taek Hee(한택희)
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Alternative Author(s)
- 박영현; 오영민; 한택희; 원덕희
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Publication Year
- 2019-05
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Abstract
- Hundreds of new concrete armor units (CAUs) have been developed since 1950, but only a few have been used because of their low price and familiarity. Because the design wave height has been increasing as a result of climate change, the Korean government decided to develop a new CAU for protection against high waves. Therefore, a new research project to develop a new CAU that considers stability, structural strength, economic feasibility, casting efficiency, and constructability was started. The new CAU was called Chi Block. The hydraulic stability achieved a Hudson stability coefficient of more than 13 at a significant wave height of 10 m by adopting a conservative approach. Chi Block can be installed in both uniform and random placements and can be used as an overlay for repair. A new placement for Chi Block was invented, and it features the advantage of functioning like a 1.5 layer. Although a single layer generally has a higher overtopping rate than a double layer, Chi Block, on uniform placement, has a performance near that of the Tetrapod.
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ISSN
- 0749-0208
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URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/643
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DOI
- 10.2112/JCOASTRES-D-17-00224.1
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Bibliographic Citation
- JOURNAL OF COASTAL RESEARCH, v.35, no.3, pp.719 - 728, 2019
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Publisher
- COASTAL EDUCATION & RESEARCH FOUNDATION
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Keywords
- Laboratory experiment; breakwater; single layer; CAU
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Type
- Article
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Language
- English
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Document Type
- Article
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