Seepage underneath barrages with downstream subsidiary weirs
type: Item
instance of: scholarly article
title: Seepage underneath barrages with downstream subsidiary weirs
zbMATH Open document ID: 0637.76100
DOI: 10.1016/0307-904X(87)90167-3
author: M. A. Elganainy
published in: Applied Mathematical Modelling
publication date: 1987-01-01T00:00:00Z
review text: A subsidiary weir with a sloping middle apron may be constructed downstream from each of the existing barrages on the River Nile in Egypt to secure its stability against the increase in effective heads. The problem is mathematically solved by a conformal mapping technique. Formulas are obtained to calculate the uplift pressures acting on the existing barrage and the subsidiary weir. Also formulas are derived to calculate the exit gradients along the intermediate filter and the downstream bed. We calculate the seepage characteristics for a wide range of boundary conditions, plot the results in the form of curves, and analyze them.
Mathematics Subject Classification ID: 76S05
Mathematics Subject Classification ID: 76M99
Mathematics Subject Classification ID: 86A20
zbMATH DE Number: 4039533
zbMATH Keywords: subsidiary weir
zbMATH Keywords: River Nile
zbMATH Keywords: conformal mapping technique
zbMATH Keywords: uplift pressures
zbMATH Keywords: seepage characteristics
zbMATH Keywords: boundary conditions
Wikidata QID: Q56970210
MaRDI profile type: Publication
cites work: Flow underneath a pair of structures with intermediate filters on a drained stratum
cites work: Q3661894
cites work: Q5533727
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description: scientific article; zbMATH DE number 4039533