논문실적
| CCHE2D모형을 이용한 보 상류에 퇴적된 토사의 배출 효과 분석 - 상주보와 구미보를 중심으로 - |
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학술지명 한국물환경학회지
저자 손광익,장창래,이경수,황만하
발표일 2013-12-24
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In this study, sediment pass-through (SPT) from the Sangju Weir and Gumi Weir in the Nakdong River is analyzed numerically using CCHE2D. Sediment delivery is analyzed to predict the sediment discharge rate in the Sangju Weir and Gumi Weir. The sediment discharge from the Sanju Weir is 4,381 tons in the inflow of 3,857 m3/s, which are 2 year frequency discharge, for 48 hours, and the sediment discharge is 2,766 tons in the inflow of 1,500 m3/s. The maximum sediment delivery occurs in the immediate downstream of the weir. The sediment discharge from the Gumi Weir is 3,216 tons in the inflow of 5,400 m3/s, which are 2 year frequency discharge, for 48 hours, and the sediment discharge is 73 tons in the inflow of 1,500 m3/s. The maximum sediment delivery occurs in the weir. Therefore, the effectiveness of sediment delivery is high in the condition of the 2 year frequency discharge and the gate in the weirs fully are opened. |
