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Anton Schleiss

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Publications associées (470)

Stresses and displacements in steel-lined pressure tunnels and shafts in anisotropic rock under quasi-static internal water pressure

Anton Schleiss, Alexandre Jean Pachoud

Steel-lined pressure tunnels and shafts are constructed to convey water from reservoirs to hydroelectric power plants. They are multilayer structures made of a steel liner, a cracked backfill concrete layer, a cracked or loosened near-field rock zone and a ...

Springer Wien2016

The Interplay of In Situ Stress Ratio and Transverse Isotropy in the Rock Mass on Prestressed Concrete-Lined Pressure Tunnels

Anton Schleiss

This paper presents the mechanical and hydraulic behaviour of passively prestressed concrete-lined pressure tunnels embedded in elastic transversely isotropic rocks subjected to non-uniform in situ stresses. Two cases are distinguished based on whether the ...

Springer Wien2016

Velocity profile measurements in bore waves

Giovanni De Cesare, Anton Schleiss, Michael Pfister, Davide Wüthrich

Hydrodynamic waves are an unsteady flow motion generated by rapid water level rise. In nature, such events can be found in dam-break waves, impulse waves and tsunamis. These phenomena are rare, but highly destructive. The present study is based on an exper ...

2016

Evolution of the hydromorphodynamics of mountain river confluences for varying discharge ratios and junction angles

António Heleno Cardoso, Anton Schleiss, Mário Jorge Rodrigues Pereira Da Franca, Sebastián Guillén Ludeña

Mountain river confluences are characterized by narrow and steep tributaries that supply abundant sediment load to a main channel that, in turn, provides the dominant flow discharge. In addition, bed sediments consist of poorly sorted mixtures that promote ...

Elsevier2016

Energy production with a tubular propeller turbine

Anton Schleiss, Mário Jorge Rodrigues Pereira Da Franca, Cécile Münch-Alligné, Vlad Hasmatuchi, Irene Almeida Samora

Micro-hydropower is a way of improving the energetic efficiency of existent water systems. In the particular case of drinking water systems, several studies have showed that pressure reducing valves can be by-passed with turbines in order to recover the di ...

2016

Assessment of the performance of numerical modeling in reproducing a replenishment of sediments in a water-worked channel

Anton Schleiss, Elena Battisacco, Carmelo Juez Jiménez

The artificial replenishment of sediment is used as a method to re-establish sediment continuity down- stream of a dam. However, the impact of this technique on the hydraulics conditions, and resulting bed morphology, is yet to be understood. Several numer ...

Elsevier2016

Feasibility assessment of micro-hydropower for energy recovery in the water supply network of the city of Fribourg

Anton Schleiss, Pedro Filipe De Almeida Manso, Mário Jorge Rodrigues Pereira Da Franca, Irene Almeida Samora

In water supply systems there is potential for hydropower production at several scales, from small hydro to micro. The energy recovery within the urban water supply networks is a type of micro-hydro that may be useful for the control of excessive pressures ...

2016

Signal analysis of an actively generated cavitation bubble in pressurized pipes for detection of wall stiffness drops

Giovanni De Cesare, Anton Schleiss, Mohamed Farhat, Fadi Hachem, Alexandre Jean Pachoud

Due to the increasing production of volatile new renewable energies as solar and wind, storage hydropower plants have to operate under harsh operation conditions in order to stabilize the electricity grid. As a result, highly transient water pressures occu ...

Elsevier2016

Interaction of Hydraulic Structures with Air, Water, and Rock: The Challenge of Researchers and Designers

Anton Schleiss

2016

Physical modelling optimization of a filter check dam in Switzerland

Giovanni De Cesare, Anton Schleiss, Sebastian Schwindt

After a major flood with a peak discharge of 177 m³/s in the city of Martigny (Valais, Switzerland) by the alpine river Drance in October 2000, the local authorities are strengthening efforts for the protection of the urban area. The Drance has an annual a ...

2016

Waves generated by ship convoy: Comparison of physical and numerical modeling with in-situ measurements

Giovanni De Cesare, Anton Schleiss, Robin Amacher, Théodora Cohen Liechti, Michael Pfister

A part of the domestic waste of the city of Geneva (Switzerland) is transported with ship convoys on the Rhone River to the waste incineration station. These convoys generate waves, which partially endangers the stability of the river banks and the riparia ...

2016

Mobile Riverbed Scour Downstream of a Piano Key Weir

Anton Schleiss, Michael Pfister, Stefan Jüstrich

In parallel to their most frequent application as an auxiliary dam spillway, piano key weirs (PKWs) are also installed on low-head barrages in combination with run-off-the-river power plants. Their efficient rating curve, advantageous behavior under driftw ...

Asce-Amer Soc Civil Engineers2016

Numerische Modellierungen zur Bestimmung der Habitatvielfalt an einem mäandrierenden wasserkraftbeeinträchtigten Fliessgewässer

Anton Schleiss, Christopher Robinson, Pierre Bourqui, Severin Stähly

Die Sanierung von Schwall/Sunk- als auch Restwasserstrecken in Fließgewässern in den vergangenen Jahren eine erhöhte Priorität in der Schweiz nicht zuletzt im Rahmen der Revision des Gewässerschutzgesetzes. Dabei wird unter anderem auf die Reaktivierung de ...

2016

Local tributary widening for river rehabilitation

Koen Blanckaert, Anton Schleiss, Marcelo Leite Ribeiro

The hydro-morpho-sedimentary processes in confluence hydrodynamic zones (CHZ) subject to a local widening of the tributary were investigated in a series of laboratory experiments that were representative of the 20 major confluences of the Upper Rhone River ...

John Wiley and Sons2016

Experimental assessment of head losses through elliptical and sharp-edged orifices

Giovanni De Cesare, Anton Schleiss, Nicolas Jean François Pascal Ghislain Adam

Due to the European electricity market liberalization and the appearance of other renewable electricity producers, an increase of installed peak power capacity is relevant to provide larger amount of electricity in a shorter turbine duration. When the disc ...

2016

Sediment replenishment: Influence of the geometrical configuration on the morphological evolution of channel-bed

Anton Schleiss, Mário Jorge Rodrigues Pereira Da Franca, Elena Battisacco

Dams trap sediment in the upstream reservoir, which may lead to river bed armoring, streambank erosion and failure, channel incision and reduction of the morphological diversity in the downstream river reaches. The replenishment of sediment is a mitigation ...

American Geophysical Union2016

Effect of pool confinement on pressures around a block impacted by plunging aerated jets

Anton Schleiss, Rafael Xavier Meriade Duarte

The erosion caused by jets issued from hydraulic structures progressively develops a confined scour-hole on the riverbed. A realistic scour assessment must consider both the influence of the air entrained when the jet plunges into the pool and the flow pat ...

National Research Council Canada2016

Surface Turbulence on Bores and Surges propagating on Smooth and Rough Beds

Anton Schleiss, Pedro Filipe De Almeida Manso, Michael Pfister, Davide Wüthrich

Hydrodynamic waves are characterised by unsteady, highly turbulent and irregular behaviours. In nature, such phenomena can be observed in dam breaks, impulse waves and tsunamis. Both wet bed bores and dry bed surges were experimentally reproduced on smooth ...

2016

Simulated Annealing in Optimization of Energy Production in a Water Supply Network

Anton Schleiss, Mário Jorge Rodrigues Pereira Da Franca, Irene Almeida Samora

In water supply systems, the potential exists for micro-hydropower that uses the pressure excess in the networks to produce electricity. However, because urban drinking water networks are complex systems in which flows and pressure vary constantly, identif ...

Springer Verlag2016

Non-intrusive flow velocity measurements in pressurized pipe with orifice

Giovanni De Cesare, Anton Schleiss, Nicolas Jean François Pascal Ghislain Adam

Orifices are hydraulic devices producing pressure drops or head losses in pipes ways. Flow velocity measurements at the upstream of orifices allow understanding the effect of given flow field on head losses, while downstream measurements provide informatio ...

2016

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