Browse > Article
http://dx.doi.org/10.3741/JKWRA.2018.51.7.555

Effects of the water level reduction and the flow distribution according to change of the side weir location in detention reservoir  

Seong, Hoje (Department of Land, Water and Environment Research, Korea Institute of Civil Engineering and Building Technology)
Park, Inhwan (Department of Land, Water and Environment Research, Korea Institute of Civil Engineering and Building Technology)
Rhee, Dong Sop (Multi Disaster Countermeasures Organization, Korea Institute of Civil Engineering and Building Technology)
Publication Information
Journal of Korea Water Resources Association / v.51, no.7, 2018 , pp. 555-564 More about this Journal
Abstract
The detention reservoir is a hydraulic structure that constructs a levee on the inland of river and sets up side weir in a section of the levee, and this facility stores a part of the flood volume in case of a flood event over a certain scale. In order to optimize the operation of detention reservoir, it is necessary to review the linkage with existing facilities in the river. In this study, the effect of water level reduction and the flow distribution was analyzed according to the location of the side weir in the detention reservoir considering the run-of-the-river gate. Two radial gates were installed in the experimental channel, and the water level in channel and the overflow of weir were measured by moving the location of the side weir upstream from the gate. As a results of experiment, it was confirmed that the water level reduction is more remarkable as the location of the side weir was closer to the gate, and the effect of flow distribution is not greatly changed. When two or more side weirs were operated, it is confirmed that the sufficient storage space was secured and the water level reduction effect with the location of the side weir is not large. In addition, the water level reduction rate according to the location of the side weir was estimated by empirical formula and it is provided as basic data that can be used in the planning of the detention reservoir.
Keywords
Detention reservoir; Side weir; Gate operation; Water level reduction; Flow distribution;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
연도 인용수 순위
1 Kang, S.-M., Park, M.-J., Kim, S.-H., and Kim, S.-J. (2007). "A study on the mitigation of inundation damage using flood inundation analysis model FLUMEN - for the part of Jinwicheon reach -." Journal of the Korean Society of Civil Engineers A, Vol. 27, No. 6B, pp. 583-590.
2 Kim, H.-J., Bae, D.-W., and Yoon, K.-S. (2011). "Experimental study for analysis of flood mitigation effect by detention basin." Journal of the Korean Society of Hazard Mitigation, Vol. 11, No. 6, pp. 281-291.   DOI
3 Kim, S.-H., Kim, S.-J., and Yoon, B.-M. (2014). "Design and analysis of flood-control effects of side-weir detention basin in Gonjiamcheon watershed." Proceedings of the KSCE 2014 Convention, EXCO, Korea, pp. 927-928.
4 Kim, S.-J., Hong, S.-J., Yoon, B.-M., and Ji, U. (2012). "Feasibility analysis of HEC-RAS for unsteady flow simulation in the stream channel with a side-weir detention basin." Journal of Korea Water Resources Association, Vol. 45, No. 5, pp. 495-503.   DOI
5 Kim, S.-J., Kim, S.-H., and Yoon, B.-M. (2015). "Determine the length of the side-weir of side-weir detention basin considering the uncertainty of the water level in river." Journal of Korea Water Resources Association, Vol. 48, No. 8, pp. 673-683.   DOI
6 Rhee, D.-S., Kim, H.-J., and Cho, G. (2014). "Analysis of flood level mitigation due to the Naju retention-basin by numerical model application." Journal of the Korea Academia-Industrial cooperation Society, Vol. 15, No. 9, pp. 5801-5812.   DOI
7 Yeh, C. H., and Labadie, J. W. (1997). "Multiobjective watershedlevel planning of storm water detention systems." Journal of Water Resources Planing and Management, Vol. 123, No. 6, pp. 336-343.   DOI
8 Baek, C.-W., Kim, B.-C., and Ahn, T.-J. (2009). "Analysis of flood reduction effect of washlands based on variation of rollway characteristic." Journal of the Korean Society of Hazard Mitigation, Vol. 9, No. 1, pp. 145-150.
9 Ahn, T.-J., Byeon, C.-I., Roh, H.-S., and Baek, C.-W. (2010). "Study on optimal location of washland based on economic analysis." Journal of Korea Water Resources Association, Vol. 43, No. 8, pp. 681-694.   DOI
10 Ahn, T.-J., Kang, I.-W., and Baek, C.-W. (2008). "Development of decision making model for optimal location of washland based on flood control effect estimated by hydrologic approach." Journal of Korea Water Resources Association, Vol. 41, No. 7, pp. 725-735.   DOI
11 Burgin, J. F., and Holley, E. R. (2002). "Side-diversion analysis system." CRWR Online Report 02-3, houston, TX, USA.
12 Cho, G.-J., Rhee, D.-S., and Kim, H.-J. (2014). "Numerical model application for analysis of flood level mitigation due to retention-basin." Journal of the Korea Academia-Industrial Cooperation Society, Vol. 15, No. 1, pp. 495-505.   DOI
13 Davis, J. E., and Holley, E. R. (1988). "Modeling side-weir diversions for flood control." Journal of Hydraulic Engineering, National Conferences ASCE, pp. 979-984.
14 Forster, S., Kneib, D., Gocht, M., and Bronstert, A. (2005). "Flood risk reduction by the use of retention areas at the Elbe river." International Journal of River Basin Management, Vol. 3, No. 1, pp. 21-30.   DOI
15 Jun, K.-S., Kim, J.-S., Kim, W., and Yoon, B.-M. (2010). "Computational model for flow in river systems including storage pockets with side weirs." Journal of Korea Water Resources Association, Vol. 43, No. 2, pp. 139-151.   DOI