10 فروردین 1403
محمد واقفي

محمد واقفی

مرتبه علمی: دانشیار
نشانی: دانشکده مهندسی - گروه مهندسی عمران
تحصیلات: دکترای تخصصی / مهندسی عمران
تلفن: 077-31342401
دانشکده: دانشکده مهندسی

مشخصات پژوهش

عنوان The Effect of Inclined Pair Piers on Bed Topography: Clear Water, Incipient Motion and Live Bed
نوع پژوهش مقالات در نشریات
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مجله Iranian Journal of Science and Technology-Transactions of Civil Engineering
شناسه DOI
پژوهشگران فرید صدیقی (نفر اول) ، محمد واقفی (نفر دوم) ، گودرز احمدی (نفر سوم)

چکیده

In this study, effects of inclined pair piers on bed topography in a scaled river bend were experimentally investigated. Three separate groups of experiments under clear water, incipient motion and movable bed conditions were performed. The results showed that for a pair of V-shaped piers, the scouring was higher for the pier closer to the bend outer perimeter, while the opposite trend was observed for the ?-shaped piers. It was observed that shifting the position of ?-shaped piers from the 60 degree angle to 90 and 120 degree angles led to 6% and 26% increase in the peak scour depth, while, for the V-shaped piers, the position that led to the maximum scour depth varied depending on the flow regime. The maximum scour depth, which was 117% of the flow depth, was observed in the live bed experiment in which the V-shaped piers were placed at the f 60° plane. Under the live bed condition, it was seen that piers closer to the inner bank are less susceptible to scouring.