| Abstract |
| Depending on climate change, abnormal floods and typhoons other than in the past are common. The dam shall reduce flood damage in downstream areas by controlling the amount of discharge from flood occurrence. However, the initial conditions of a dam in the simulation operation of a flood dam can be very important to show the results of the dam simulation analysis. In this study, the results of flood operation of dams were analyzed due to changes in the initial water level of the reservoir. The initial level of the five typhoons in the Andong Dam basin was changed from EL.160.0 m, the full water level of Andong Dam, to EL.150.0 m at 0.5 meter intervals. The change in the flood control rate was 36.96% for memi with the greatest peak inflow, or 100% for EL.160.0 m and 100% for EL.152.0 m. The flood retention rate was found to be 55.20% at EL.160.0 m and 22.61% at EL.150.0 m in Ewinia, where the total inflow of water was greatest. In case of discharge rate, in sanba, 99.58% of the flow rate of flooding was discharged from the space of EL. 160.0 m. |
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| Key Words |
| Dam Operation, Flood Control, Initial Condition, Reservoir |
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