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۱Breach Flow Hydrograph Due to Washoutof Fuseplug in an Earthen Dam (Text in Persian)
اطلاعات انتشار: World Applied Sciences Journal، بيست و هشتم،شماره۵، ۲۰۱۳، سال
تعداد صفحات: ۷
The computation of hydrograph of breach flow passing through a fuse plug depends on the geometry of fuseplug، the properties of fuse plug fill materials،capacity of the reservoir and the incoming flow to the reservoir. The experiments are carried out with adopted fuse plug geometry. But the soil fills and incoming discharge to the reservoir were varied. The non–dimensional breach flow hydrograph are plotted with scale parameters qwp and twp، the peak breach flow intensity (qwp )and time to breach that peak value (twp ) for all the runs respectively. These scales are correlated with average inflow to the reservoir (qin)،fuseplug height (HD)، soil resisting velocity (VSR) and surface area of the reservoir (As). The values of exponent ‘n’ for the fitted curves of the recession limbs of the normalized hydrographs varies from 0.5 for type–A soil to l.0 for type–D soil. A more reasonable value of ‘n'' is 0.65 which makes the fitted curve more acceptable. This study supports an approach which can be used to compute breach flow hydrograph.
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