Catégorie

Géotechnique

Personnes associées (32)

Director, EPFL Soil Mechanics LaboratoryDirector, EPFL Civil Engineering SectionEditor in Chief, ElsevierMember of the Swiss Academy of Engineering SciencesFounding Partner, Geoeg & MeduSoilActive in academic research in the following institutions: Lausanne, EPFL, Durham, Duke University, Nanjing, Hohai UniversityProfessor Lyesse Laloui teaches at EPFL, where he directs the Soil Mechanics Laboratory as well as the Civil Engineering Section. He is a founding partner of the international engineering company Geoeg, and the start-up MeduSoil. In addition, he is an adjunct professor at Duke University, USA and an advisory professor at Hohai University, China as well as honorary director of the International Joint Research Center for Energy Geotechnics in China.He is the recipient of an Advance ERC grant for his BIO-mediated GEO-material Strengthening project. Editor in Chief of the Elsevier Geomechanics for Energy and the Environment journal, he is a leading scientist in the field of geomechanics and geo-energy. He has written and edited 13 books and published over 320 peer reviewed papers; his work is cited more than 6000 times with an h-index of 39 (Scopus). Two of his papers are among the top 1% in the academic field of Engineering. He has given keynote and invited lectures at more than 40 leading international conferences. He has received several international awards (IACMAG, RM Quigley, Roberval) and delivered honorary lectures (Vardoulakis, Minnesota; G.A. Leonards, Purdue; Kersten, Minnesota). He recently acted as the Chair of the international evaluation panel of Civil and Geological Engineering R&D Units of Portugal.Nov. 2019 For further information visit www.epfl.ch/labs/lms/ ; geoeg.net ; medusoil.com

Alessio Ferrari

Aurelio Muttoni

Aurelio Muttoni est professeur ordinaire et directeur du Laboratoire de Construction en Béton de l’Ecole Polytechnique Fédérale de Lausanne (Suisse). Il a reçu son diplôme et son doctorat en génie civil de l’Ecole Polytechnique Fédérale de Zürich à Zürich, Suisse, en 1982 et 1989 respectivement. Ses activités actuelles en matière d’enseignement se concentrent sur la conception des structures, la théorie et le dimensionnement des structures en béton ainsi que la conception des ponts. Son groupe de recherche est actif dans les domaines suivants : comportement et méthodes de dimensionnement des structures en béton, conception de structures innovantes, effort tranchant dans les structures en béton, poinçonnement des dalles, analyse non-linéaire des structures incluant leur fiabilité, adhérence entre l’acier et le béton, engrènement des granulats, fatigue et influence de la durée de chargement sur la résistance du béton, comportement mécanique et principes de dimensionnement pour le béton à ultra-hautes performances, béton textile et béton recyclé. Aurelio Muttoni a reçu la distinction Chester Paul Siess Award for Excellence in Structural Research en 2010 et la médaille Wason for Most Meritorious Paper en 2014, toutes deux décernées par l’ American Concrete Institute . Il est membre du Presidium de la fib (Fédération Internationale du Béton), de plusieurs commissions et groupes de travail de la fib et il a dirigé le Project Team pour la deuxième génération de la norme européenne EN 1992-1-1 (Eurocode pour les structures en béton). Aurelio Muttoni est aussi co-fondateur et associé du bureau de conseil Muttoni & Fernández (www.mfic.ch). Ce bureau est actif dans la conception, l’analyse et le dimensionnement de structures porteuses pour les constructions d’architecture et de génie civil, ainsi que dans le conseil en matière d’ingénierie structurale.

Marie Estelle Solange Violay

Johan Alexandre Philippe Gaume

I started my scientific career in 2008 at the Grenoble University in the IRSTEA laboratory where I did my master's thesis on the rheology of dense granular materials using the discrete element method. In the same lab, I followed with a PhD on the numerical modeling of the release depth of extreme avalanches using a combined mechanical-statistical approach and spatial extreme statistics. In 2013 I obtained a postdoc position at the WSL Institute for Snow and Avalanche Research SLF in Davos where I was in charge of developing and applying numerical models to improve the evaluation of avalanche release conditions and thus avalanche forecasting. While my PhD was mostly theoretical and numerical, my postdoc in Davos allowed me to gain a practical expertise by participating in laboratory and field experiments which helped to validate the models I develop. In 2016, I was awarded a SNF grant to work as a research and teaching associate in CRYOS at EPFL on the multiscale modeling of snow and avalanche processes. I developed discrete approaches to model snow micro-structure deformation and failure in order to evaluate constitutive snow models to be used at a larger scale in continuum models. I also developed numerical models for wind-driven snow transport. In 2017, I was a Visiting Scholar at UCLA to work on a Material Point Method (MPM) to simulate both the initiation and propagation of snow avalanches in a unified manner. The UCLA MPM model was initially developed for the Disney movie "Frozen" and has been modified and enriched based on Critical State Soil Mechanics to model the release and flow of slab avalanches. The results of this collaboration have been published in Nature Communications. In 2018, I was awarded the SNF Eccellenza Professorial Fellowship and became professor at EPFL and head of SLAB, the Snow and Avalanche Simulation Laboratory. At SLAB, we study micro-mechanical failure and fracture propagation of porous brittle solids, with applications in snow slab avalanche release. We also simulate avalanche dynamics and flow regime transitions over complex 3D terrain through the development of new models (depth-resolved and depth-averaged) based on MPM.In 2020, I obtained a SPARK grant to develop a new approach to simulate and better understand complex process chains in gravitational mass movements, including permafrost instabilities, rock, snow and ice avalanches and transitions to debris flows.

Brice Tanguy Alphonse Lecampion

I am currently an assistant Professor and the head of the Geo-Energy Lab - Gaznat Chair on GeoEnergy at Ecole Polytechnique Fédérale de Lausanne (EPFL), Switzerland. Prior to joining EPFL, I have worked for Schlumberger in research and development from 2006 until May 2015 - serving in a variety of roles ranging from project manager to principal scientist in both Europe and the United States. I received my PhD in mechanics from Ecole Polytechnique, France in 2002 and worked as a research scientist in the hydraulic fracturing research group of CSIRO division of Petroleum resources (Melbourne, Australia) from 2003 to 2006. During my time in Schlumberger R&D, I have worked on problems related to the integrity of deep wells, large scale monitoring of reservoir deformation and more specifically on the stimulation of oil and gas wells by hydraulic fracturing. My current research interests cover hydraulic fracture mechanics, mechanics of porous media and dense suspensions flow.

Dimitrios Lignos

Prof. Lignos joined the École Polytechnique Féderale de Lausanne (EPFL) in 2016 from McGill University in Canada where he was a tenured Associate Professor and a William Dawson Scholar for Infrastructure Resilience. He holds a diploma (National Technical University of Athens, NTUA, 2003), M.S. (Stanford University, 2004) and Ph.D. (Stanford University, 2008). In addition, he was a post-doctoral scientist at Stanford University (2009) and in Kyoto University (2010). Prof. Lignos teaches graduate and undergraduate courses in seismic design, nonlinear behaviour of steel and composite structures as well as supplemental damping systems, Structural Stability, Nonlinear Analysis and Performance-based Earthquake Engineering. His awards for teaching, research and service in Civil Engineering include the 2011 Outstanding Teaching Award (Faculty of Engineering, McGill University), as well as the Outstanding reviewer (2012, 2013) award from ASCE, the 2013 State-of-the-Art in Civil Engineering Award by ASCE and the 2014 Christophe Pierre Award for Research Excellence - Early Career. Just recently, he received the 2019 Walter L. Huber Civil Engineering Research Prize from ASCE for significant contributions in developing state of the art methods to simulate extreme limit states in steel structures.Prof. Lignos is a member of ASCE and the Earthquake Engineering Research Institute. He acts as an Associate Editor for Metal Structures and Seismic Effects of the ASCE Journal of Structural Engineering. He joined the Editorial Board of Earthquake Spectra and Earthquake Engineering and Structural Dynamics International journals. He serves as an acting member of the CEN/TC 250/SC 8/WG 2 and has been selected as a member of the Project Team (PT2) for the Eurocode 8-Part 1 Current Revisions for Steel and Composite Structures. He is also a member of the Canadian Standards Association (CSA) S16 technical committee for Steel Structures. Prof. Lignos is involved as a NEHRP consultant in numerous research-to-practice projects related to the behaviour and nonlinear modelling and analysis of structures applicable to the engineering practice through the Applied Technology Council (ATC). Detailed Curriculum Vitae (last update September 2018)

Jean-François Molinari

Professor J.F. Molinari is the director of the Computational Solid Mechanics Laboratory (http://lsms.epfl.ch) at EPFL, Switzerland. He holds an appointment in the Civil Engineering institute, which he directed from 2013 to 2017, and a joint appointment in the Materials Science institute. He started his tenure at EPFL in 2007, and was promoted to Full Professor in 2012. He is currently an elected member of the Research Council of the Swiss National Science Foundation in Division 2 (Mathematics, Natural and Engineering Sciences), and co editor in chief of the journal Mechanics of Materials. J.F. Molinari graduated from Caltech, USA, in 2001, with a M.S. and Ph.D. in Aeronautics. He held professorships in several countries besides Switzerland, including the United States with a position in Mechanical Engineering at the Johns Hopkins University (2000-2006), and France at Ecole Normale Supérieure Cachan in Mechanics (2005-2007), as well as a Teaching Associate position at the Ecole Polytechnique de Paris (2006-2009). The work conducted by Prof. Molinari and his collaborators takes place at the frontier between traditional disciplines and covers several length scales from atomistic to macroscopic scales. Over the years, Professor Molinari and his group have been developing novel multiscale approaches for a seamless coupling across scales. The activities of the laboratory span the domains of damage mechanics of materials and structures, nano- and microstructural mechanical properties, and tribology.

Christophe Ancey

Christophe Ancey has both a PhD and an engineering degree granted by the Ecole Centrale de Paris and the Grenoble National Polytechnic Institute. Trained as a hydraulics engineer, he did his doctoral work under the supervision of Pierre Evesque from 1994 to 1997 on rheology of granular flows in simple shearing. He was recruited in 1998 as a researcher in rheology at the Cemagref as part of the Erosion Protection team directed by Jean-Pierre Feuvrier, which has since become the laboratoire "Storm Erosion, Snow and Avalanche Laboratory". Parallel to this research activity, with Claude Charlier He set up a consulting firm for engineering contracting called Toraval (www.toraval.fr), which has become the major player in the avalanche field in France. Since 2004, He is a fluid-mechanics professor at EPFL and he is the director of the Environmental Hydraulics Laboratory. He is associate editor of Water Resources Research, one of the leading journal in the field.

Yves Weinand

Biography Architect and civil engineer, Prof. Dr. Yves Weinand is one of the most recognised researchers in the field of contemporary wood construction. Founder of the Bureau d'Etude Weinand, he has, since 1996, designed and worked on many emblematic wooden buildings, such as the Saint Loup Chapel, the new Vaudois Parliament or, more recently, the Timber Pavilion of Vidy in Lausanne. His fundamental research questions the technical and static possibilities of wooden materials. The interdisciplinary exploration carried out at the EPFL's Laboratory for Timber Constructions (Ibois), of which he is director, concerns wood in all its aspects, from round wood to manufactured wood. The recent research carried out at Ibois on free structures with wood-wood connections (without screw nor glue) has been the subject of several technological transfers, and stands as tangible proof of new possibilities for wood construction. Yves Weinand is currently working on a large-scale project for a hall for the head office of a joinery in Luxembourg, consisting of a succession of arches with spans of 22.5 to 53.7m, entirely assembled in wood ). Through new innovative approaches, the ambition of his research is to develop a new generation of renewable and ecological wooden construction.He is regularly invited to present his work at international symposia on timber construction.

Fields of expertise Architectural designTimber structuresDigital FabricationRobotic AssemblyStructural Wood mechanicsIntegrally Attached Timber plate structures

Distinctions 2012 Grand Prix d'Architecture de Wallonie 2014 Best Paper Award, Advances in Architectural Geometry conference. (IBOIS team) 2017 Medal for Research and Technique by the Academy of Architecture. 2018 Mention Régionale, Prix Lignum for the Timber Pavilion of Vidy-Lausanne 2019 "Disctinction Bois 2019" for the Nouveau Parlement vaudois.2019 Grand Prix d'Architecture de Wallonie____________________________________________________________________________ Selected publications Les Cahiers de l'Ibois/ Ibois Notebooks 1, F. Fromonot, S. Berthier, Y. Rocher, publication directors: Y. Weinand et C. Catsaros, 2020 EPFL Press Le Pavillon en bois du Théâtre de Vidy, under the direction of Yves Weinand; V. Baudriller, J. Gamerro, M. Jaccard, C. Robeller; 2017, PPURAdvanced Timber Structures - Architectural Designs and Digital Dimensioning, Y. Weinand, 2017, Birkhaüser, publié en trois langues (french : Structures Innovantes en Bois (2016); german : Neue Holztragwerke - Architektonische Entwürfe und digitale Bemessung (2017)Grubenmann Project / Projekt Grubenmann, Y. Weinand, 2016, Stiftung Grubenmann-SammlungTimber Project: Nouvelles formes d’architectures en bois, Y. Weinand, 2010, PPURArchitexto, Y. Weinand and D. Darcis, 2009, Editions Fourre-Tout, LiègeLe bois soudé, B. Stamm and Y. Weinand, 2004, Architecture Bois & DépendanceNew Modeling - projeter ensemble, Y. Weinand, 2003, PPUR