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http://dx.doi.org/10.21729/ksds.2019.12.2.35

Analysis of Hydraulic Impacts due to Sudden Enlargement of Kyungpo-cheon River Channel  

Choi, Jong-Ho (Graduate School of Disaster Prevention, Kangwon National University)
Jung, Tae-Jung (Graduate School of Disaster Prevention, Kangwon National University)
Jun, Kye-Won (Graduate School of Disaster Prevention, Kangwon National University)
Publication Information
Journal of Korean Society of Disaster and Security / v.12, no.2, 2019 , pp. 35-45 More about this Journal
Abstract
The enlargement and reduction of river channels can not only change the flow of water but also alter sedimentation patterns, thus hindering smooth flood conveyance. Accordingly, this study aims to analyze the effects of the sudden enlargement of river channels on changes in the riverbed and river flow. For this purpose, as part of the "Hometown River" Construction Project, this study examined the local river Kyungpo-cheon, which a section of the river channel was widened by at least two- to three-fold, using RMA-2 and SED-2D models to simulate the changes in flow characteristics and riverbed variation due to the widening of the channel. The results of the study indicated that widening the Kyungpo -cheon river channel secured its dimensional stability in comparison to before widening. however, due to a flood frequency of more than once per year, future maintenance and management will be costly and time-consuming.
Keywords
Enlargement of river channel; Flow characteristics; Riverbed variation; RMA-2 model; SED-2D model;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 Ariathurai, C. R. (1974). A Finite Element Model for Sediment Transport in Estuaries. University of California, Davis.
2 Bhowmik, N. G., Demissie, M., and Parmar, P. S. (2004). Application of RMA2 Modeling for the Construction of Artificial Islands with Dredged Sediments to Enhance Aquatic and Terrestrial Habitats. 2004 World Water and Environmental Resources Congress: Critical Transitions in Water and Environmental Resources Management. 2620-2627.
3 Chun, D. S. (2003). Two-dimensional Hydraulic Analysis Considering the Bend Effect of the Channel. Yeungnam University. Dissertation of Master Degree.
4 Jung, T. J. (2016). Analysis of Hydraulic Effect on Kyungpo-river by Channel Enlargement. Kangwon National University. Dissertation of Master Degree.
5 Kwak, J. W., Jin, H. S., and Kim, H. S. (2017). An Assessment of Flow Characteristic and Riverbed Change by Construction of Hydraulic Structure. Journal of Wetlands Research. 19(4): 542-550.   DOI
6 Maeng, S. J., Lee, S. W., Hwang, G. S., and Kim, D. O. (2013). Analysis of the Characteristics of the River Bed Variation for Gagok Down Stream Considering Flood Season, Crisisonomy. 9: 103-115.
7 Park, J. K. (2011). River's flood Control Examination by Analysis of 2-dimension Hydraulic. kyungpook national university. Dissertation of Master Degree.
8 Shin, K. S. (2011). Study on Characteristics of River Flow with Numerical Models for Planting Plan. Hanyang University. Dissertation of Master Degree.
9 Yoon, J. J. (2014). Analysis of Hydraulic Characteristics of Gagokchon River Estuary Using a 2-D Numerical Model. Kangwon National University. Dissertation of Master Degree.
10 강릉시 (2015). 경포천 하류지역에 대한 홍수방저대책 재수립.
11 강원도 (2012). 경포천 하천기본계획(변경).
12 강원도 (2012). 경포천 고향의 강 정비사업 실시설계, 2012.