St-egrève reservoir-modelling of flushing and evolution of the channel bed

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The Saint-Egrève dam is located downstream of the city of Grenoble, on the Isere river in France. Over time, the reservoir has silted up. Frequent flushing operations allow the maintenance of a channel in the reservoir, but siltation bank formation on either side of the channel is irreversible. Due to the urban location of the reservoir, maintaining the freeboard of the upstream dike of the reservoir during the design flood is a major issue. Nowadays, the evolution of the filling is such that the channel erosion during the flood must be taken into account to estimate a realistic freeboard. During a first part of the study, ID morphodynamics simulations were performed. The model was calibrated and validated with measured sediment fluxes and then applied to a project design situation. A second part of the study consisted on performing 2D and 3D numerical simulations and comparing results with the 1D model.

Original languageEnglish
Title of host publicationReservoir Sedimentation - Special Session on Reservoir Sedimentation of the 7th International Conference on Fluvial Hydraulics, RIVER FLOW 2014
PublisherCRC Press/Balkema
Pages185-194
Number of pages10
ISBN (Print)9781138026759
DOIs
Publication statusPublished - 1 Jan 2014
Externally publishedYes
EventSpecial Session on Reservoir Sedimentation of the 7th International Conference on Fluvial Hydraulics, RIVER FLOW 2014 - Lausanne, Switzerland
Duration: 3 Sept 20145 Sept 2014

Publication series

NameReservoir Sedimentation - Special Session on Reservoir Sedimentation of the 7th International Conference on Fluvial Hydraulics, RIVER FLOW 2014

Conference

ConferenceSpecial Session on Reservoir Sedimentation of the 7th International Conference on Fluvial Hydraulics, RIVER FLOW 2014
Country/TerritorySwitzerland
CityLausanne
Period3/09/145/09/14

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