Publications associées à Éboulis

Quantifying snowfall and avalanche release synchronization: a case study

Paolo Perona, Benoît Crouzy, Betty Sovilla, Romain Forclaz

We quantify the synchronization between snowfall and natural avalanches in relation to terrain properties at the detachment zone. We analyze field statistics of 549 avalanche events in terms of slope, aspect, timing, coordinate, and release area, identifie ...

Wiley-Blackwell2015

Entraining avalanches on slopes: results from experiments using PIV on viscoplastic gravity currents.

Christophe Ancey, Belinda Margaret Bates

In order to conduct experiments simulating entrainment by avalanches on slopes, it was necessary to select a material which could act as both a stationary entrainable layer, mimicking undisturbed mud or snow, and a flowing mass, representing the flowing av ...

2014

Study on rock mass boreability by TBM penetration test under different in situ stress conditions

Jian Zhao, Lijun Yin

Rock mass boreability is a comprehensive parameter reflecting the interaction between rock mass and a tunnel boring machine (TBM). Many factors including rock mass conditions, TBM specifications and operation parameters influence rock mass boreability. In ...

Pergamon-Elsevier Science Ltd2014

From standing to breaking antidunes, a Hopf bifurcation.

Christophe Ancey, Joris Heyman, François Mettra

Antidunes are bed morphologies often observed in steep slope mountain flows but also in small streams flowing on a sand beach. Linear stability analysis of the shallow water equations (SWE), when coupled to a sediment transport equation, predicts the growt ...

2013

From bedform evolution to channel slope fluctuations in steep-slope streams.

Christophe Ancey, Joris Heyman, François Mettra, Hongbo Ma

In mountain streams, bedload transport rates are prone to strong variability. Indeed an increasing number of laboratory and field studies in steep-slope conditions show fluctuations of bedload transport rate over several temporal and spatial scales. This b ...

2013

Segregation in a quasi-stationary avalanche on an inclined conveyor-belt.

Christophe Ancey, Kasper van der Vaart

We have carried out laboratory experiments to determine the internal structure of segregating dense granular avalanches and test the recent theoretical predictions of the existence of breaking size-segregation waves [Thornton & Gray, 2008]. Measurements we ...

2013

Empirical and analytical analyses of laboratory granular flows to investigate rock avalanche propagation

Vincent Labiouse, Irene Manzella

Laboratory experiments which consist of releasing dry rigid non-cohesive grains or small bricks on an unconfined chute have been designed to investigate rock avalanche propagation mechanisms and to identify parameters influencing their deposit characterist ...

Springer Verlag2013

Marc Parlange, Chad Higgins, Eric Richard Pardyjak, Daniel Nadeau

In this study,we investigate the validity of similarity scaling over a steep mountain slope (30–41◦). The results are based on eddy-covariance data collected during the Slope Experiment near La Fouly (SELF-2010); a field campaign conducted in a narrow vall ...

Springer2013

Flow during the evening transition over steep Alpine slopes

Wolf Hendrik Huwald, Marc Parlange, Chad Higgins, Eric Richard Pardyjak, Daniel Nadeau

A field campaign, the Slope Experiment near La Fouly (SELF-2010), was conducted to monitor the evening transition of slope flows on clear-sky days from July to September 2010 in a narrow valley of the Swiss Alps. A steep west-facing slope with inclinations ...

Wiley-Blackwell2013

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Éboulis

Quantifying snowfall and avalanche release synchronization: a case study

Stochastic-deterministic modeling of bed load transport in shallow water flow over erodible slope: linear stability analysis and numerical simulation

Entraining avalanches on slopes: results from experiments using PIV on viscoplastic gravity currents.

Study on rock mass boreability by TBM penetration test under different in situ stress conditions

From standing to breaking antidunes, a Hopf bifurcation.

From bedform evolution to channel slope fluctuations in steep-slope streams.

Segregation in a quasi-stationary avalanche on an inclined conveyor-belt.

Empirical and analytical analyses of laboratory granular flows to investigate rock avalanche propagation

Similarity Scaling Over a Steep Alpine Slope

Flow during the evening transition over steep Alpine slopes

Graph Chatbot

Chattez avec Graph Search

Stochastic-deterministic modeling of bed load transport in shallow water flow over erodible slope: linear stability analysis and numerical simulation

Empirical and analytical analyses of laboratory granular flows to investigate rock avalanche propagation

Quantifying snowfall and avalanche release synchronization: a case study

From bedform evolution to channel slope fluctuations in steep-slope streams.

Study on rock mass boreability by TBM penetration test under different in situ stress conditions

From standing to breaking antidunes, a Hopf bifurcation.

Segregation in a quasi-stationary avalanche on an inclined conveyor-belt.

Similarity Scaling Over a Steep Alpine Slope

Flow during the evening transition over steep Alpine slopes

Entraining avalanches on slopes: results from experiments using PIV on viscoplastic gravity currents.