[논문]댐과 하천유역을 연계한 홍수 대응 방안 - 2020년 섬진강 홍수사상을 대상으로 -

백경오; 이동열

doi:10.14346/jkosos.2023.38.2.81

[국내논문] 댐과 하천유역을 연계한 홍수 대응 방안 - 2020년 섬진강 홍수사상을 대상으로 -
Plan for Flood Control Linked with Dam and River Basin 원문보기

한국안전학회지 = Journal of the Korean Society of Safety, v.38 no.2, 2023년, pp.81 - 86

백경오 (한경국립대학교 건설환경공학부) , 이동열 (한경국립대학교 건설환경공학부)

Abstract ▼ AI-Helper

In this study, a one-dimensional numerical model was constructed to propose a flood control plan linked with the dam and river basin for the flood events of the Seomjin River in 2020. The flood level reduction of the downstream river was tested based on a scenario operation of the Seomjingang Dam and was also analyzed when a storage pocket was newly constructed as one of the river basin measures. It was confirmed that Seomjingang Dam's flood control capacity would be increased if the flood limit level was drastically lowered from the current EL. 196.5 m to EL. 188.0 m. In addition, if the upper area of the (old) Geumgok Bridge (which suffered great damage due to the loss of the levee) is used as a storage pocket, it would be effective in preventing floods in the lower area of it. In the era of the climate crisis, more integrated flood management is needed and basic river management must be observed.

Keyword

표/그림 (11)

그림 Fig. 1. Schematic diagram of Seomjin River watershed and location of water level observatories.
그림 Fig. 2. Established tributary flow rate as lateral inflow.
그림 Fig. 3. Inflow, discharge and water level of Seomjingang Dam during flood season in 2020.
그림 Fig. 4. Measured and calculated water levels at major locations during the flood season in 2020.
표 Table 1. Difference between measured and calculated water levels at each major location
그림 Fig. 5. The actual discharge of Seomjingang Dam and the discharge of scenario No.23.
그림 Fig. 6. Change in water level at flood affected areas when the discharge of scenario No. 23 was applied.
그림 Fig. 7. Location of preliminary storage pockets.
그림 Fig. 8. Change in water level at a location directly downstream of the storage pocket depending on overflow height at (old)Geumgokgyo.
그림 Fig. 9. Change in water level at (old)Geumgokgyo when a storage pocket was constructed.
그림 Fig. 10. Change in water level according to the construction of storage pockets.

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