Concept

Barrage de St. Francis

Publications associées (46)

Physical and numerical modeling of the spillways and plunge pools of Koman Dam in Albania

Anton Schleiss, Giovanni De Cesare, Gaël Epely Chauvin, Matteo Paolo Elia Antonio Federspiel, Milad Daneshvari, Mathias Malquarti

The 115 m high Koman Dam is located in the northern part of Albania and is part of the Drin River hydroelectric cascade. The dam is equipped with two tunnel spillways with flip buckets at their downstream limits. Two large scour holes were created in the d ...

2011

Experimental Study on Dam-Break Waves for Silted-Up Reservoirs

Anton Schleiss, Rafael Xavier Meriade Duarte

The overall dam-break phenomenon is currently well understood for reservoirs filled with water. However, many dams face serious problems of reservoir sedimentation. Thus, regarding risk management, the influence of a large amount of sediment in the reservo ...

2011

Coupled spillway devices and energy dissipation system at St-Marc (France)

Anton Schleiss, Marcelo Leite Ribeiro

The physical modeling tests for the rehabilitation of St-Marc Dam with a PKW are presented. A particular focus is put on the energy dissipation downstream from the PKW. The adopted solution is a leaned “ski-jump gutter” placed at the contact line between t ...

CRC Press, Taylor & Francis Group2011

A study on the uplift mechanism of Tongjiezi dam using a coupled hydro-mechanical model

During filling in 1992 of the Tongiiezi reservoir, in Southwest China, it was noticed that the dam body and the rock masses on the right side of the valley were uplifted up to 22.2 mm and 24.3 mm respectively. After reservoir filling in 1993, the uplift co ...

2011

Sediment transport under dam-break flows on steep slope.

Christophe Ancey

Dam-break flows and related phenomena: • Laboratory insight • Focus: highly concentrated flows ◦ The Newtonian paradigm ◦ Origin of plasticity in particle suspensions ◦ Evidence of two-phase effect • Flow structure ◦ particle segregation ◦ deposition and l ...

2011

Downstream relevance of reservoir management

Alfred Johny Wüest

The management of dams serves many purposes and goals all over the globe, and has important consequences for the downstream rivers and lakes. Among the more than 50,000 so-called large dams, the biggest are located in alpine regions. As a result, the water ...

Springer2010

The dam-break problem for viscous fluids in the high-capillary-number limit

Christophe Ancey, Steve Cochard, Nicolas Andreini

Experiments were undertaken to investigate dam-break flows where a finite volume of highly viscous fluid (glucose with viscosity μ ≈ 350 Pa s) maintained behind a lock gate was released into a horizontal or inclined flume. The resulting sequence of flow-de ...

Cambridge University Press2009

Study and Numerical Simulation of Sediment Transport in Free-Surface Flow

The flow after the rupture of a dam on an inclined plane of arbitrary slope, and the induced transport of non-cohesive sediment, is analysed using the shallow-water approximation. An asymptotic (analytical) solution is presented for the flow hydrodynamics, ...

University of Malaga, Spain2008

An exact solution for ideal dam-break floods on steep slopes

Christophe Ancey, Martin Rentschler

Dam-break floods on steep slopes occur in diverse settings. They may result from failure of either natural or man-made dams, and they have been responsible for the loss of thousands of lives [Costa, 1988]. Recent disasters resulting from dam-break floods o ...

American Geophysical Union2008

Transport of suspended sediment under the dam-break flow on an inclined plane bed of arbitrary slope

The problem of transport of suspended sediment after the break of a dam on an inclined bed is considered. To that end we use the shallow-water approximation for arbitrary, constant slopes of the bottom, taking into consideration the effect of friction. The ...

2008

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