La Houille Blanche
Number 3-4, Juin 2000
|Page(s)||68 - 75|
|Published online||01 July 2009|
" Bon " ou " Mauvais " soutirage ? L'exemple de quelques barrages algériens
"Good" or "Bad" drawing off ? Some examples of Algerian dams
Maître de conférences, Université de BLIDA, Algérie
The procedure of drawing off the sediments by the sluices can reduce the filling ratio of a reservoir; but it must be well employed, and it is not the case for some algerian dams: the drawing off is carried out after the consolidation of mud. According to the measures of density and quantity of the suspended materials drawn off in Algerian dams, we propose two types of drawing off: the "good" one and the "bad" one, with differences in the drawn off mixture density which infuences the regime of flowing. To have a good efficacy of the drawing off, a pratical method is proposed for the management of dams in arid and semi-arid countries.
© Société Hydrotechnique de France, 2000
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