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http://dx.doi.org/10.5762/KAIS.2020.21.10.517

A Study on the ex-ante Hydraulic Facilities Assessment Techniques Combinedly Considering Flood Control - Environmental Functions  

Lee, Tae-Geun (Water Resources Dept., Dongbu Engineering Co., Ltd.)
Sim, Gyoo-Seong (Water Resources Dept., Dongbu Engineering Co., Ltd.)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.21, no.10, 2020 , pp. 517-529 More about this Journal
Abstract
Various facilities in the river working in a complex interdependence network result in both desired and adverse effects. Among these, the weir crossing the river continuously acts in various ways, such as securing river maintenance flow and water level during dry-period, and rising flood level during rainy period. Until now, weir planning was only limited to flood mitigation management. Recently, the demand for securing river environment functions is increasing. Therefore, the necessity for an environmental flow has emerged. Nevertheless, there is no analysis and evaluation of the ecological functional aspects applying the environmental flow when planning facilities. Therefore, this study aimed to develop and systematize an assessment method that considers not only flood control but also river environment. Environmental flow was applied to the weir named Dondaet-bo and hydraulic analysis was conducted for each retention, demolition, and re-installation case. Also, this research was conducted to minimize the impact on the surrounding river facilities and flood assessments from previous perspectives were performed. The study result demonstrated a plan to reinstall the weir as a natural riffle. Through this study, it is expected that the flood control and environmental functions of rivers can be secured in combination.
Keywords
Environment Flow; Flood Control-River Environment; Hydraulic Analysis; River Plan; Natural Riffle;
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Times Cited By KSCI : 7  (Citation Analysis)
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