단기 태⋅폭풍 기인 잠제 배후의 Piling-up 현상 평가 KCI OTHER

Title
단기 태⋅폭풍 기인 잠제 배후의 Piling-up 현상 평가
Alternative Title
Assessment of Water Piling-up behind a Submerged Breakwater during Storm Events
Author(s)
손동휘; 유제선; 김무종
KIOST Author(s)
Son, Donghwi(손동휘)Yoo, Jeseon(유제선)
Publication Year
2018-10
Abstract
It is generally known that submerged breakwaters can reduce the incoming wave energy without disturbing the beach scenery. However, a submerged breakwater is also able to cause a setup of the sea level in the protected area which is also called as water piling-up. Since the piling-up can result in longshore currents, sediment transports, and unexpected beach erosion, understanding about the piling-up process is required prior to designing the nearshore structures. In this study, the water piling-up behind a submerged breakwater is assessed in the time of storm events. For the study area, Anmok beach in Gyeonso-dong, Gangwon-do is selected. 1-year, 5-year, 10-year, and 50-year return-values were derived from Peaks-Over-Threshold(POT) method and those are applied as offshore boundary conditions for the numerical simulation. The numerical results of the piling-up were assessed with regard to the wave steepness and the height of the submerged breakwater. With increase of both significant wave height and the height of the submerged breakwater, the piling-up parameter is also increased which can lead to erosion of dry beach behind the structure.
ISSN
2288-7903
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/38894
DOI
10.20481/kscdp.2018.5.4.203
Bibliographic Citation
한국연안방재학회지, v.5, no.4, pp.203 - 210, 2018
Publisher
(사)한국연안방재학회
Keywords
Water piling-up; Submerged breakwaters; Wave steepness; XBeach; Anmok beach
Type
Article
Language
Korean
Publisher
(사)한국연안방재학회
Related Researcher
Research Interests

Coastal disaster,Coastal numerical modeling,Coastal remote sensing,연안재해,수치모델링,연안 원격탐사

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