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http://dx.doi.org/10.3741/JKWRA.2015.48.9.743

Analysis of the Effect of Dredging and Weirs on Bed Change in the Nakdong River and its Tributary using HEC-6  

Ahn, Jung Min (National Institute of Environmental Research, Nakdong River Environment Research Center)
Kwak, Sunghyun (Department of Civil Engineering, Changwon National University)
Lyu, Siwan (Department of Civil Engineering, Changwon National University)
Publication Information
Journal of Korea Water Resources Association / v.48, no.9, 2015 , pp. 743-756 More about this Journal
Abstract
It is necessary to evaluate the effect of dredging and weir operation on the flow and long-term bed change for river management. Especially, large scale river treatment project, with dredging or weir installation and operation, can increase the instability of riverbed in tributaries as well as mainstream. This study focuses on the effect of weir installation and dredging on the long-term bed change in Nakdong river (Gangjeong- Goryeong Weir~Dalseong Weir) and its tributary (Geumho river). HEC-6 model has been used to analyze the amount of long-term bed change and sediment transport resulted from the river treatment including dredging or weir installation. From the result, it was concluded that a large scale river treatment can accelerate and increase the long-term bed change both in mainstream and tributary.
Keywords
long-term bed change; tributary; HEC-6; weir; dredging;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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