[fr] Le développement inquiétant de la fosse d’érosion à l’aval du barrage de Poses a conduit Voies Navigables de France a réalisé des essais sur modèle réduit à fond mobile et modèle numérique afin de définir la protection adéquate. L’étude a consisté dans un premier temps à identifier les situations conduisant aux affouillements les plus importants, puis à proposer une protection en enrochement de classe 3-6 t sur 30 m à l’aval. Cette protection, testée sur modèle réduit, s’est révélé particulièrement satisfaisante. [en] The worrying development of a scouring downstream of the Poses dam decided Voies Navigables de France to carry on tests on experimental and numerical hydraulic models in order to design a suitable protection solution. In a first step, the study enabled to identify the operation situations for which scouring risk was the most important. Second, a rip rap protection made of 3-6 t blocks on a length of 30 m downstream of the dam has proved to be able to resist the whole realistic flow solicitations.
Disciplines :
Civil engineering
Author, co-author :
Sixdenier, Jean Philippe
Shaiek, Salah
Erpicum, Sébastien ; Université de Liège - ULiège > Scientifiques attachés au Doyen (Sc.appliquées)
Pirotton, Michel ; Université de Liège - ULiège > Département ArGEnCo > HECE (Hydraulics in Environnemental and Civil Engineering)
Lahaye, Roger
Language :
French
Title :
Protection contre l’affouillement du barrage de Poses-Amfreville : études sur modèles réduit et numérique
Alternative titles :
[en] Protection against scouring effect downstream of Poses navigation dam: experimental and numerical studies
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