Publication

Gestion du charriage sur le torrent de Milibach pour la protection contre les inondations – optimisation sur modèle physique / Management of the bedload transport of the Milibach torrent for flood protection purpose – a physically-based model study

Anton Schleiss, Jean-Louis Boillat
2012
Conference Papers

Abstract

Le torrent du Milibach présente une capacité hydraulique insuffisante conduisant à des débordements fréquents dans le village de Meiringen notamment. Ce manque de capacité est dû essentiellement à l’accumulation de sédiments dans le lit du cours d’eau pendant les crues. Une solution pour retenir une partie des sédiments charriés et ainsi réduire le flux solide à l’amont de la région à risque a été proposée. Elle consiste en un réaménagement du cours d’eau et en la création de terrasses de déposition sédimentaire sur la rive gauche adjacente. Un modèle physique a été réalisé pour optimiser le projet expérimentalement. Les améliorations ont essentiellement porté sur l’intégration de seuils dans le cours d’eau et de digues transversales sur les terrasses d’alluvionnement

Official source

https://infoscience.epfl.ch/entities/publication/4b7b2060-c762-46c8-b974-a5a5b93c2100

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Anton Schleiss, Jean-Louis Boillat
2012
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/4b7b2060-c762-46c8-b974-a5a5b93c2100

About this result

Related concepts (10)

Flood

A flood is an overflow of water (or rarely other fluids) that submerges land that is usually dry. In the sense of "flowing water", the word may also be applied to the inflow of the tide. Floods are an area of study of the discipline hydrology and are of significant concern in agriculture, civil engineering and public health. Human changes to the environment often increase the intensity and frequency of flooding, for example land use changes such as deforestation and removal of wetlands, changes in waterway course or flood controls such as with levees, and larger environmental issues such as climate change and sea level rise.

Fluvial processes

In geography and geology, fluvial processes are associated with rivers and streams and the deposits and landforms created by them. When the stream or rivers are associated with glaciers, ice sheets, or ice caps, the term glaciofluvial or fluvioglacial is used. Fluvial processes include the motion of sediment and erosion or deposition on the river bed. The movement of water across the stream bed exerts a shear stress directly onto the bed.

Bed load

The term bed load or bedload describes particles in a flowing fluid (usually water) that are transported along the stream bed. Bed load is complementary to suspended load and wash load. Bed load moves by rolling, sliding, and/or saltating (hopping). Generally, bed load downstream will be smaller and more rounded than bed load upstream (a process known as downstream fining). This is due in part to attrition and abrasion which results from the stones colliding with each other and against the river channel, thus removing the rough texture (rounding) and reducing the size of the particles.

Related publications (4)

Gestion du charriage sur le torrent de Milibach pour la protection contre les inondations – optimisation sur modèle physique / Management of the bedload transport of the Milibach torrent for flood protection purpose – a physically-based model study

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Modeling of Sediment Management for the Lavey Run-of-River HPP in Switzerland

Characterization of bedload transport in steep-slope streams.

Hydromorphological implications of local tributary widening for river rehabilitation