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http://dx.doi.org/10.14481/jkges.2014.15.6.31

A Study of Sediment Discharge and Bed Change Characteristics of the Local Rivers in Korea  

Son, Hogeun (School of Civil & Environmental Engineering, Kumoh National Institute of Technology)
Lee, Jungsik (School of Civil & Environmental Engineering, Kumoh National Institute of Technology)
Shin, Shachul (Department of Civil Engineering, Andong National University)
Moon, Changgeon (School of Civil & Environmental Engineering, Kumoh National Institute of Technology)
Publication Information
Journal of the Korean GEO-environmental Society / v.15, no.6, 2014 , pp. 31-39 More about this Journal
Abstract
The objective of this study is to suggest the proper sediment transport equation and short and long-term bed change for planning and implementing the river management in Korea. To analyze total sediment discharge and short and long-term bed change, existing sediment transport equations, HEC-RAS 4.1 and CCHE2D numerical models were applied in urban and mountainous rivers. The results of this study are as followings; Firstly, the modified Einstein equation showed the most appropriate result for the estimation of total sediment discharge in the local rivers. Secondly, The stage-discharge relation curve and the discharge-total sediment discharge relation curve were suggested to examine the characteristics of river bed change. Finally, it is founded that river bed change of mountainous river has occurred greater than that of the urban river, and the river bed of urban river now tends to be stabilized on the whole.
Keywords
Total sediment discharge; Short and long-term bed change; Discharge-total sediment discharge relation curve;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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