Concept

Digue

Publications associées (41)

Experimental assessment of riverbed sediment reinforcement by vegetation roots

Vegetation roots are known to increase soil stability on hillslopes, crops and river banks, thus reducing slide hazards, surface erosion and general processes affecting lateral channel migration. Many studies have tackled this classical engineering problem ...

Crc Press-Taylor & Francis Group2014

Flow separation at the inner (convex) and outer (concave) banks of constant-width and widening open-channel bends

Koen Blanckaert

There is a paucity of data and insight in the mechanisms of, and controls on flow separation and recirculation at natural sharply-curved river bends. Herein we report on successful laboratory experiments that elucidate flow structure in one constant-width ...

Wiley-Blackwell2013

Analysis of flood-reduction capacity of hydropower schemes in an Alpine catchment area by semidistributed conceptual modeling

Anton Schleiss, Martin Peter Bieri

The simulation of run-off in Alpine catchment areas is essential for the optimal operation of high head storage hydropower plants (HPPs) under normal flow conditions, but also in case of flood events. A conceptual semidistributed numerical approach is pres ...

2013

Active flood management in Alpine catchment areas equipped with storage hydropower schemes

Anton Schleiss, Martin Peter Bieri, Frédéric Jordan

The simulation of runoff in Alpine catchment areas is essential for the optimal operation of high-head storage hydropower plants (HPP) under normal flow conditions, but also in case of flood events. A semi-distributed conceptual numerical approach has been ...

Crc Press-Taylor & Francis Group2013

Bend scour reduction induced by an air-bubble screen under live-bed conditions

Anton Schleiss, Koen Blanckaert, Violaine Dugué

Open-channel bends are characterized by complex interactions between streamwise flow, curvature-induced secondary flow and bed morphology. These bend effects cause erosion near the outer bank, and deposition near the inner bank. Previous laboratory experim ...

Taylor & Francis Group, CRC Press2012

Piano Key Weirs as efficient spillway structure

Anton Schleiss, Michael Pfister, Marcelo Leite Ribeiro

With increasing of hydrological data records and the development of technologies for flood discharge estimation, as well as higher requirements on dam safety issues, a large number of existing dams require spillway rehabilitation to improve their hydraulic ...

2012

Hydromorphological implications of local tributary widening for river rehabilitation

Anton Schleiss, Koen Blanckaert, Marcelo Leite Ribeiro, André Roy

The hydromorphological implications of the local widening of a tributary where it enters a confluence were investigated in a laboratory setting that is representative of the 20 major confluences on the channelized Upper Rhone River. Although local tributar ...

American Geophysical Union2012

Searching the Rhone delta channel in Lake Geneva since François-Alphonse Forel

Ulrich Lemmin, Yosef Akhtman

In the late 19th century, F.-A. Forel led investigations of the Rhone River delta area of Lake Geneva that resulted in the discovery of a textbook example of a river-fed delta system containing impressive subaquatic channels. Well ahead of the marine count ...

2012

Characterization of bedload transport in steep-slope streams.

Christophe Ancey, Joris Heyman, François Mettra

Large fluctuations in the sediment transport rate are observed in rivers, particularly in mountain streams at intermediate flow rates. These fluctuations seem to be, to some degree, correlated to the formation and migration of bedforms. Today the central q ...

2012

Physical and numerical model study investigating plunge pool scour at Kariba Dam

Anton Schleiss, Michael Pfister, Erik Bollaert, Rafael Xavier Meriade Duarte

Kariba Dam is a 128 m high arch dam located on the border between Zambia and Zimbabwe. The dam has been constructed in the late 1950s and formed at that time the largest man-made lake worldwide. The dam is equipped with 6 flood gates, each about 9 m high b ...

2012

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