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논문 기본 정보

자료유형
학술저널
저자정보
Seo, Hyeong-Deok (Department of Civil and Environmental Engineering, Kongju National University) Jeong, Sang-Man (Department of Civil and Environmental Engineering, Kongju National University) Kim, Lee-Hyung (Department of Civil and Environmental Engineering, Kongju National University) Choi, Kyu-Ho (Department of Water-resources, Ilseung Industry Company)
저널정보
한국방재학회 한국방재학회논문집 한국방재학회논문집 제8권 제1호
발행연도
2008.1
수록면
103 - 108 (6page)

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Riverbed change is greatly influenced by artificial factors such as dam construction, gravel collection, and river improvement. This study simulated a long-term bed change based on the GSTARS3 model using actual data from the area downstream of the Geum River Daecheong Dam and compared the estimation with a section of the actual measurement. As a result, it was found that the section of the actual measurement was far lower than the result of the simulation in terms of long-term bed change. While the area downstream of Daecheong Dam displayed approximately an average of 2.29 m of streambed degradation on average while the upper stream area showed approximately 0.63 m of bed degradation over 24 years. In the simulation of the area downstream of Daecheong Dam based on the GSTARS3 model, similar bed degradation was observed. However, a great difference was detected between the result and the actual measurement. According to the cause analysis, the riverbed in the area downstream of Daecheong Dam has continuously degraded due to the dam construction and mass collection of gravel. The mass collection of gravel was the main cause of riverbed change. It was found that about 76% of all riverbed degradation was caused by the mass collection of gravel.

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