Sabine Chamoun

Cette personne n’est plus à l’EPFL

Publications associées (25)

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Influence of Operational Timing on the Efficiency of Venting Turbidity Currents

Anton Schleiss, Giovanni De Cesare, Sabine Chamoun

Reservoir sedimentation is gaining growing attention as dams are aging, due to economic and environmental consequences. Venting of turbidity currents is one of many sediment management techniques, highly recommended when water is in shortage. The venting o ...

2018

Behaviour of a scour protection overlay with randomly distributed concrete prisms in plunge pools downstream of mobile barrages for exceptional operation conditions

Anton Schleiss, Giovanni De Cesare, Pedro Filipe De Almeida Manso, Sabine Chamoun, Davide Wüthrich

Uncontrolled scour is affecting multiple mobile dams. The plunge pool of the Chancy-Pougny barrage, located on the Rhone River bordering France and Switzerland, has recently been reported to develop in a potentially unfavourable direction after almost 100 ...

2018

Protection de la fosse de dissipation du barrage de Chancy-Pougny avec prismes en béton

Anton Schleiss, Giovanni De Cesare, Sabine Chamoun, Davide Wüthrich

La fosse de dissipation à l’aval du barrage de Chancy-Pougny qui fait face à une érosion progressive est l’objet de cette étude. Un modèle physique a été construit à l’échelle 1:55 afin de mieux comprendre les sources de cette érosion. Due à l’asymétrie gé ...

Société hydrotechnique de France2017

INVESTIGATION OF TURBIDITY CURRENT VENTING FOR TWO DIFFERENT RESERVOIR BED SLOPES

Anton Schleiss, Giovanni De Cesare, Sabine Chamoun

Reservoirs represent an important source of energy that should be preserved and sustained. However, the lifetime of reservoirs is being reduced due to natural processes such as sedimentation. To face this problem, different sediment mitigation techniques a ...

2017

Hybrid modelling approach to study scour potential of Chancy-Pougny dam stilling basin

Anton Schleiss, Giovanni De Cesare, Erik Bollaert, Sabine Chamoun, Davide Wüthrich

Chancy-Pougny is a run-of-river dam on the Swiss-French border constructed in the early 1920s. Since its inauguration, the operation of the four spillway gates was responsible for a progressive erosion of the stilling basin. Thus, a hybrid modelling was pe ...

2017

Investigation of venting turbidity currents in the Rudbar-Lorestan reservoir in Iran

Anton Schleiss, Giovanni De Cesare, Azin Amini, Sabine Chamoun, Sara Venuleo

Venting of turbidity currents is known as an efficient measure to prevent reservoir sedimentation and is applied in many reservoirs globally. It has several economic and ecological advantages compared with other evacuation methods. In the literature, numer ...

2017

Influence of outlet discharge on the efficiency of turbidity current venting

Sabine Chamoun

Sediment yield into reservoirs was underestimated during the design of dams in the past. As a result, today, reservoir sedimentation is endangering the sustainability of dams. Moreover, the obstruction of rivers hinders their capacity to transport sediment ...

EPFL2017

VENTING OF TURBIDITY CURRENTS: WHEN TO ACT?

Sabine Chamoun

During floods, sediments are transported from watersheds into reservoirs, slowly decreasing water volumes and this leading to economic losses. Thus, in the long term, sedimentation endangers reservoirs’ sustainability. Sediments can also block low-level hy ...

2017

Management of turbidity current venting in reservoirs under different bed slopes

Anton Schleiss, Giovanni De Cesare, Sabine Chamoun

The lifetime and efficiency of dams is endangered by the process of sedimentation. To ensure the sustainable use of reservoirs, many sediment management techniques exist, among which venting of turbidity currents. Nevertheless, a number of practical questi ...

Elsevier2017

Velocity profiles of turbidity currents flowing over a flat bed

Anton Schleiss, Giovanni De Cesare, Sabine Chamoun

Turbidity currents are the main source of suspended sediment transport in reservoirs and thus one of the main causes of sedimentation. One of the techniques used to avoid reservoir sedimentation is through venting of turbidity currents. In the framework of ...

2016

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Influence of Operational Timing on the Efficiency of Venting Turbidity Currents

Anton Schleiss, Giovanni De Cesare, Sabine Chamoun

2018

Behaviour of a scour protection overlay with randomly distributed concrete prisms in plunge pools downstream of mobile barrages for exceptional operation conditions

Anton Schleiss, Giovanni De Cesare, Pedro Filipe De Almeida Manso, Sabine Chamoun, Davide Wüthrich

2018