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http://dx.doi.org/10.17820/eri.2016.3.4.294

Analysis of Storage and Flood Control Effects by Underflow Type of Multi-stage Movable Weir  

Lee, Ji Haeng (Samhwa Environment and Construction Co. Ltd.)
Han, Il Yeong (Samhwa Environment and Construction Co. Ltd.)
Choi, Heung Sik (Department of Civil Engineering, Sangji University)
Publication Information
Ecology and Resilient Infrastructure / v.3, no.4, 2016 , pp. 294-301 More about this Journal
Abstract
The underflow type movable weirs were arranged in a multi-stage way at a section of the Chiseong River, a tributary of Geum River, where flooding is observed frequently. The flood control and the movable weir management levels were compared with the occasions of installing the existing weir for analysis. The peak discharge decreased by a maximum of 97% for the underflow type movable weir, and the downstream flood elevation decreased by a maximum of 82%. The amount of storage also increased by a maximum of 463% by the distribution and storage functions of the multi-stage arrangement of the underflow type movable weirs. It is possible to suggest that the management level of each movable weir for the target storage of the reach and the flood reduction level through the relationship among this storage, downstream peak flood elevation, and peak flow.
Keywords
Flood control; Multi-stage; Storage control; Underflow type of movable weir;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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