Contenido Reservoir Sedimentation

Despite the mechanisms of reservoir sedimentation being well known for a long time, sustainable and preventive measures are rarely taken into consideration in the design of new reservoirs. To avoid operational problems of powerhouses, sedimentation is often treated for existing reservoirs with measures which are efficient only for a limited time.

The today’s challenge of dam owners and engineers is to guarantee with adequate mitigation measures the future sustainable use of the vital reservoirs supplying water for drinking, food and energy production. Research and development is still urgently needed to identify efficient mitigation measures adapted to the main sedimentation processes involved in reservoirs.

During the seventh International Conference on Fluvial Hydraulics “River Flow 2014” at École Polytechnique Fédérale de Lausanne (EPFL), Switzerland, scientists and professionals from all over the world addressed the challenge of reservoir sedimentation in a special session and exchanged their knowledge and experiences. Invited and selected contributions, which give an overview on the latest developments and research regarding reservoir sedimentation including case studies, are presented in this book, in the hope that they can contribute to better sustainable use of the vital reservoirs worldwide.

Table of Contents

Preface
Organization
Sponsors

Reservoir sedimentation

Sustainable water supply, climate change and reservoir sedimentation management: Technical and economic viability
G.W. Annandale

Three-dimensional numerical modeling of flow field in rectangular shallow reservoirs
T. Esmaeili, T. Sumi, S.A. Kantoush, A.J. Schleiss & S. Haun

Meandering jets in shallow rectangular reservoir
Y. Peltier, S. Erpicum, P. Archambeau, M. Pirotton & B. Dewals

Combination of 2D shallow water and full 3D numerical modeling for sediment transport in reservoirs and basins
G. Wei, M. Grünzner & F. Semler

Photometric analysis of the effect of substrates and obstacles on unconfined turbidity current flow propagation
J.M. McArthur, R.I. Wilson & H. Friedrich

Advances in numerical modeling of reservoir sedimentation
S. Kostic

Innovative in-situ measurements, analysis and modeling of sediment dynamics in Chambon reservoir, France
M. Jodeau, M. Cazilhac, A. Poirel, P. Negrello, K. Pinte, J.-P. Bouchard & C. Bertier

Measurements of spatial distribution of suspended sediment concentrations in a hydropower reservoir
S. Haun & L. Lizano

Case studies of reservoir sedimentation as a consequence of soil erosion
V. Hrissanthou

The impact of flow transformations and reservoir floor topography on reservoir deposition patterns in high energy environments
F. Weirich

Reservoir sedimentation and erosion processes in a snow-influenced basin in Southern Spain
A. Millares, M.J. Polo, A. Moñino, J. Herrero & M.A. Losada

Suspended sediment dynamics of Ribarroja Reservoir (Ebro River, Spain)
M. Arbat-Bofill, E. Bladé, M. Sánchez-Juny, D. Niñerola & J. Dolz

The use of Flow Assisted Sediment Transport (FAST) to remove sediment from reservoirs in Southern California, USA
F. Weirich

Two approaches to forecasting of sedimentation in the Stare Miasto reservoir, Poland
T. Dysarz, J. Wicher-Dysarz & M. Sojka

Influence of geometry shape factor on trapping and flushing efficiencies
S.A. Kantoush & A.J. Schleiss

Flushing of coarse and graded sediments—a case study using reduced scale model
J.R.M. Almeida, J.J. Ota, F.R. Terabe & I.I. Muller

1D modelling of fine sediments dynamics in a dam reservoir during a flushing event
L. Guertault, B. Camenen, A. Paquier & C. Peteuil

Numerical analysis of sediment transport processes during a flushing event of an Alpine reservoir
G. Harb, C. Dorfmann, J. Schneider & H. Badura

Modelling suspended sediment wave dynamics of reservoir flushing
T.H. Tarekegn, M. Toffolon, M. Righetti & A. Siviglia

Numerical modeling of suspended sediment transport during dam flushing: From reservoir dynamic to downstream propagation
G. Antoine, A.-L. Besnier, M. Jodeau, B. Camenen & M. Esteves

St-Egrève reservoir—modelling of flushing and evolution of the channel bed
E. Valette, P. Tassi, M. Jodeau & C. Villaret

Sequential flushing of Verbois and Chancy-Pougny reservoirs (Geneva, Switzerland)
E.F.R. Bollaert, S. Diouf, J.-L. Zanasco & J. Barras

Simulation of the flushing into the dam-reservoir Paute-Cardenillo
L.G. Castillo, J.M. Carrillo & M.A. Álvarez

Comprehensive numerical simulations of sediment transport and flushing of a Peruvian reservoir
A. Amini, P. Heller, G. De Cesare & A.J. Schleiss

Sediment bypass tunnels to mitigate reservoir sedimentation and restore sediment continuity
R.M. Boes, C. Auel, M. Hagmann & I. Albayrak

Modeling long term alternatives for sustainable sediment management using operational sediment transport rules
S.A. Gibson & P. Boyd

Global analysis of the sedimentation volume on Portuguese reservoirs
F. Taveira-Pinto, L. Lameiro, A. Moreira, E. Carvalho & N. Figueiredo

Reservoir sedimentation management at Gebidem Dam (Switzerland)
T. Meile, N.-V. Bretz, B. Imboden & J.-L. Boillat

Keyword index
Author index