Concept

Geoprofessions

Publications associées (43)

Biogeochemical processes and geotechnical applications: progress, opportunities and challenges

Consideration of soil as a living ecosystem offers the potential for innovative and sustainable solutions to geotechnical problems. This is a new paradigm for many in geotechnical engineering. Realising the potential of this paradigm requires a multidiscip ...

Ice Publishing2013

Analysis and prediction of TBM performance in blocky rock conditions at the Lotschberg Base Tunnel

Jian Zhao, Andrea Delisio

This paper focuses on the analysis of the TBM performance recorded during the excavation of the Lotschberg Base Tunnel. The southern part of the tunnel was excavated by two gripper TBMs, partly through blocky rock masses at great depth. The jointed nature ...

Elsevier2013

Numerical study of the heating-cooling effects on the geotechnical behaviour of energy piles.

Lyesse Laloui, Fabrice Dupray, Alice Di Donna

Energy geostructures represent a renewable and clean source of energy which can be used for heating and cooling of buildings and de-icing of infrastructures. This technology couples the structural role of geostructures with the energy supply, using the pri ...

Taylor & Francis Group2013

Chemo-mechanical behaviour of a low activity clay

Lyesse Laloui, Alessio Ferrari, Paul Joost Witteveen

Environmental geotechnics involves several engineering applications (such as the salinification of groundwater and the storage of nuclear wastes) for which a deep understanding of the chemo-mechanical behaviour of soils is a fundamental component. Despite ...

Taylor & Francis Group2013

Geotechnical analysis of heat exchanger piles

Lyesse Laloui, Hervé Péron, Christoph Knellwolf

There is currently a lack of established calculation method for the geotechnical design of heat exchanger piles, although the technology is experiencing a fast expansion. Instead of quantifying the effects of temperature changes on the static behavior of h ...

American Society of Civil Engineers2011

A method for the geotechnical design of heat exchanger piles

Lyesse Laloui, Hervé Péron, Christoph Knellwolf

There is currently a lack of established calculation method for the geotechnical design of heat exchanger piles. Thermo-mechanical effects are ignored and large overall security factors are therefore applied. This paper presents a new geotechnical numerica ...

ASCE2011

Mechanics of Unsaturated Geomaterials

Lyesse Laloui

An understanding of the mechanics of unsaturated geomaterials has become an important component of the background of a geo-engineer operating in various fields of geomechanics. Several geotechnical operations, such as compaction and excavation processes, a ...

John Wiley & sons2010

Geological characterization of cataclastic rock samples using medical X-ray computerized tomography

Pierre Guillaume Christe

Technical difficulties associated with tunnelling operations in tectonized geological settings are frequently encountered. They may include instantaneous and delayed cavity convergence, sudden collapse of walls or roof of a gallery, outpouring of fault-fil ...

EPFL2009

Study of a progressive failure in soil using BEDS

Luc Thévenaz, Stella Foaleng Mafang

In Geotechnical Engineering, progressive failure in soil-structure interaction is one of the least understood problems. It is difficult to study this phenomenon at laboratory scale, because of the large amount of strain gages required per unit length/area ...

SPIE2009

Biogeochemical processes governing the stability of bacteriogenic UO2+x

Rizlan Bernier-Latmani, Harish Veeramani, Jonathan Sharp

The chemical stability of bacteriogenic “UO2” is one of the seminal issues governing its success as an in-situ waste form in remediated subsurface locations. Little detail is known about the structure and reactivity of this material, but based on compariso ...

2007

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