Modeling and practice of erosion and sediment transport under change
Mesure des flux et dépôts sédimentaires pour la gestion des ouvrages hydroélectriques sur le bassin du Rhône.
International audience
A substantial laboratory data set from the literature is gathered for studying sediment transport rates under steady flow without any upstream sediment feeding. We analysed the decrease in sediment transport rate from bed armouring, i.e., coarsening of the bed surface and structure development. We quantified an equilibrium time, which corresponds t...
The objective of this study is to model discharge and solid erosion quantification through a small agricultural watershed by applying the SWAT model (Soil and Water Assessment Tools) on the Wadi Harraza's basin of which is part of Wadi Cheliff's basin, with an average altitude of 500 m, drains an area of 568 sq km. Soil and Water Assessment Tool (S...
Ce travail présente au travers de quelques exemples français les effets des barrages sur le transport solide et donc sur l'envasement des rivières en distinguant tout particulièrement les trois principaux modes de transport : le charriage, la suspension graduée et la suspension de lessivage. Une discussion sur le terme de transparence aux flux sédi...
In steep slope streams, torrential-hazards mainly result from abrupt and massive sediment deposits. Open check dams are regularly used in natural hazard mitigation to trap sedimentand driftwood. A good comprehension of the phenomena that occur in these structures is needed to optimize their design. In this paper, we present new results from small s...