Laurent Tacher

Diplomas

Doctorat ès sciences (PhD) in quantitative hydrogeology, Neuchâtel university, 1992

Diplôme dHydrogéologue (post-graduate diploma), Neuchâtel university, 1988

Diplôme de Géologue (master), Lausanne university, 1986

Working experience

Since 1993, researcher at GEOLEP/EPFL in hydrogeology and engineering geology, including definition and funding of the researches. Author of many scientific publications and research reports about groundwater resources, aquifer protection, geothermal exploitation, landslides, mainly in the aspects of numerical and structural modeling. Scientific management of PhDs, postgraduate and master diplomas. Member of EPFL Environment doctoral school commission. Lecturer at EPFL and Lausanne/Geneva universities. Consultant at GEOMOD SA, Lausanne. Initiative and organization of the GEOLEP contribution to Swiss Virtual Campus Natural hazards (2002). Initiative and organization of the master in Engineering geology at ELSTE/Ecole lémanique des sciences de la Terre (2000). Consultant at International Geomechanical Commission about the hydrogeological impact of french nuclear testing in Mururoa (1997-1998). Lecturer at Neuchâtel university in pumping tests analysis (till 1998).

1991-1993: Private consulting

Conceptual geological models for NAGARA/CEDRA (Swiss society for nuclear wastes management). Pumping tests analysis in fractured media (software development) for « Centre de Recherches Fondamentales et Appliquées, Sion », Neuchâtel university and several private companies.

1986-1991: Assistant at Neuchâtel university, software development in quantitative hydrogeology. PhD dissertation: SPHINX, a groundwater prospection simulation software. Assistant at Lausanne university, Geological Institute, for several field trips in Himalaya, India.

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Related publications (73)

CIVIL-403: Geology for construction and environment

Détermination des roches principales, physique des écoulements souterrains en rapport avec les ouvrages, relations entre milieu géologique et construit. Determination of the main rocks, physics of un

Landslide

Landslides, also known as landslips, are several forms of mass wasting that may include a wide range of ground movements, such as rockfalls, shallow or deep-seated slope failures, mudflows, and debris flows. Landslides occur in a variety of environments, characterized by either steep or gentle slope gradients, from mountain ranges to coastal cliffs or even underwater, in which case they are called submarine landslides.

Hydrogeology

Hydrogeology (hydro- meaning water, and -geology meaning the study of the Earth) is the area of geology that deals with the distribution and movement of groundwater in the soil and rocks of the Earth's crust (commonly in aquifers). The terms groundwater hydrology, geohydrology, and hydrogeology are often used interchangeably. Hydrogeology is the study of the laws governing the movement of subterranean water, the mechanical, chemical, and thermal interaction of this water with the porous solid, and the transport of energy, chemical constituents, and particulate matter by flow (Domenico and Schwartz, 1998).

Geomechanics

Geomechanics (from the Greek prefix geo- meaning "earth"; and "mechanics") is the study of the mechanical state of the Earth's crust and the processes occurring in it under the influence of natural physical factors. It involves the study of the mechanics of soil and rock. The two main disciplines of geomechanics are soil mechanics and rock mechanics. Former deals with the soil behaviour from a small scale to a landslide scale.

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This study describes transient hydrogeological and geomechanical models realized jointly in 2006 by the Geolep office (Géologie de l’Ecole Polytechnique) of the Polytechnical School of Lausanne (EPFL)

National Research Council Canada2012

Hydrogeology of the Pont Bourquin landslide, Swiss Alps

Laurent Tacher, Cornelia Sara Brönnimann, Michel Jaboyedoff, Clément Michoud

2011

Understanding cave genesis along favourable bedding planes. The role of the primary rock permeability

Laurent Tacher, Marco Filipponi, Pierre-Yves Jeannin

Recent studies on the complex 3D geometry of large cave systems around the World allowed us to get statistical evidence of the inception horizon hypothesis. It clearly confirmed the idea that the deve

2010