Experimental Investigation of Flood Management by an Instantaneous Levee Breach
| Autor: | Lindsey Ann LaRocque, Melih Calamak, Ibrahim Adil Ibrahim Al-Hafidh, Jasim Imran, M. Hanif Chaudhry |
|---|---|
| Přispěvatelé: | OpenMETU |
| Rok vydání: | 2022 |
| Předmět: |
geography
geography.geographical_feature_category Flood myth MADRID FLOODWAY SPILLWAY Mechanical Engineering Floodplain storage Attenuation ComputingMilieux_LEGALASPECTSOFCOMPUTING MITIGATION Flood control FLOWS Levees DESIGN FISH Forensic engineering Levee Engineered breach Geology NUMERICAL INVESTIGATIONS Water Science and Technology Civil and Structural Engineering |
| Zdroj: | Journal of Hydraulic Engineering. 148 |
| ISSN: | 1943-7900 0733-9429 |
| Popis: | Laboratory experiments were conducted to investigate the reduction of flood depth in a channel due to an engineered levee breach. Different combinations of inflow hydrographs, breach openings, and floodplain storage areas were considered. Inflow hydrographs with various peak discharges, hydrograph shapes, and flood durations were generated by a computer-controlled valve. A breach was created instantaneously on the channel sidewall as the flood wave approached the breach location. Regression analyses were conducted to express the reduction of flood depth as a function of the breach width, channel width, distance of the selected location from the breach centerline, hydrograph characteristics, and the area of the floodplain basin. The results show that the engineered levee breach provided an effective reduction of flood depth both upstream and downstream of the breach-more so upstream of the breach-by modifying the flood wave. The breach width and floodplain area are found to play a significant role in depth reduction. |
| Databáze: | OpenAIRE |
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