Dynamic Wave-Induced Settlement Behavior of a Caisson Breakwater Built on a Sandy Seabed
Monitored breakwater settlements taken from an actual breakwater structure over an extended period of time (more than five years) were analyzed. The analysis revealed that the waves clearly affect the settlement of the breakwater, especially during high wave conditions such as typhoons. Breakwater s...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/5554530 |
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| author | Gichun Kang Tae-Hyung Kim Jiseong Kim Seong-Kyu Yun |
| author_facet | Gichun Kang Tae-Hyung Kim Jiseong Kim Seong-Kyu Yun |
| author_sort | Gichun Kang |
| collection | DOAJ |
| description | Monitored breakwater settlements taken from an actual breakwater structure over an extended period of time (more than five years) were analyzed. The analysis revealed that the waves clearly affect the settlement of the breakwater, especially during high wave conditions such as typhoons. Breakwater settlement is caused by a decrease of effective stress of seabed during partial liquefaction due to wave-induced cyclic loads, which occurs due to an increase in excess pore pressure and the combination of oscillatory and residual pore water pressures. A new combined numerical model was suggested that allows the storm wave-induced seabed settlement underneath the caisson breakwater to be examined qualitatively. The technique uses a combined wave model (2D-NIT) and soil model (FLIP). The dynamic wave load calculated by the 2D-NIT was used as the input data for the soil model. This soil model can simulate both oscillatory and residual pore water pressures at the same time. There is a different feature to other previous studies adopting similar techniques. |
| format | Article |
| id | doaj-art-101a0a11591049118d7f2da82f009255 |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-101a0a11591049118d7f2da82f0092552025-02-03T01:28:31ZengWileyAdvances in Civil Engineering1687-80861687-80942021-01-01202110.1155/2021/55545305554530Dynamic Wave-Induced Settlement Behavior of a Caisson Breakwater Built on a Sandy SeabedGichun Kang0Tae-Hyung Kim1Jiseong Kim2Seong-Kyu Yun3Department of Civil Engineering, College of Engineering, Gyeongsang National University, 501 Jinjudae-ro, Jinju, Gyeongsnagnam-do 52828, Republic of KoreaDepartment of Civil Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Youngdo-gu, Busan 49112, Republic of KoreaDepartment of Cadastre & Civil Engineering, Vision College of Jeonju, 235 Cheonjam-ro, Wansan-gu, Jeonju, Jeollabuk-do 55069, Republic of KoreaEngineering Research Institute, Gyeongsang National University, 501 Jinjudae-ro, Jinju, Gyeongsnagnam-do 52828, Republic of KoreaMonitored breakwater settlements taken from an actual breakwater structure over an extended period of time (more than five years) were analyzed. The analysis revealed that the waves clearly affect the settlement of the breakwater, especially during high wave conditions such as typhoons. Breakwater settlement is caused by a decrease of effective stress of seabed during partial liquefaction due to wave-induced cyclic loads, which occurs due to an increase in excess pore pressure and the combination of oscillatory and residual pore water pressures. A new combined numerical model was suggested that allows the storm wave-induced seabed settlement underneath the caisson breakwater to be examined qualitatively. The technique uses a combined wave model (2D-NIT) and soil model (FLIP). The dynamic wave load calculated by the 2D-NIT was used as the input data for the soil model. This soil model can simulate both oscillatory and residual pore water pressures at the same time. There is a different feature to other previous studies adopting similar techniques.http://dx.doi.org/10.1155/2021/5554530 |
| spellingShingle | Gichun Kang Tae-Hyung Kim Jiseong Kim Seong-Kyu Yun Dynamic Wave-Induced Settlement Behavior of a Caisson Breakwater Built on a Sandy Seabed Advances in Civil Engineering |
| title | Dynamic Wave-Induced Settlement Behavior of a Caisson Breakwater Built on a Sandy Seabed |
| title_full | Dynamic Wave-Induced Settlement Behavior of a Caisson Breakwater Built on a Sandy Seabed |
| title_fullStr | Dynamic Wave-Induced Settlement Behavior of a Caisson Breakwater Built on a Sandy Seabed |
| title_full_unstemmed | Dynamic Wave-Induced Settlement Behavior of a Caisson Breakwater Built on a Sandy Seabed |
| title_short | Dynamic Wave-Induced Settlement Behavior of a Caisson Breakwater Built on a Sandy Seabed |
| title_sort | dynamic wave induced settlement behavior of a caisson breakwater built on a sandy seabed |
| url | http://dx.doi.org/10.1155/2021/5554530 |
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