L'IFSTTAR a été sollicité par la société ERG pour réaliser une campagne d'essais de laboratoire (mission G2) sur des matériaux gypseux pour un projet localisé à Toulon dans la zone portuaire. L'objectif de ces essais est de fournir une vue globale du comportement mécanique et physico-chimique des matériaux gypseux sujets à dissolution. Ce rapport p...
FDFC 2017, 7th International Conference on Fundamentals & Development of Fuel Cells,, STUTTGART, ALLEMAGNE, 31-/01/2017 - 02/02/2017
Published in Bulletin of Engineering Geology and the Environment
In mountainous areas, freezing is a prominent phenomenon for weathering processes in rock walls. A freezing front penetrates rock crack networks and causes its propagation. To study the evolution of rock mass stability, a suitable model of stress generated by freezing in open rock cracks is needed. This stress evaluated by the simple volume expansi...
Parmi les outils permettant d'évaluer les impacts écologiques des altérations de débit des cours d'eau, les modèles d'habitat hydraulique couplent une modélisation hydraulique avec des modèles des exigences écologiques des espèces aquatiques. La simplification de ces modèles permet de les appliquer à l'échelle des bassins versants pour quantifier l...
These last twenty years have seen the development of an abundant literature on the influence of soil macrofauna on soil structure. Amongst these organisms, earthworms, termites and ants are considered to play a key role in regulating the physical, chemical and microbiological properties of soils. Due to these influential impacts, soil ecologists co...
This study evaluates how alteration of geosynthetic clay liners (GCLs) affects the hydraulic behaviour of a composite liner when the geomembrane presenting a hole is overlying a GCL. Interface transmissivity experiments were performed on GCL specimens that were exhumed from field sites. The results reveal different trends in the flow rates, which d...
These last twenty years have seen the development of an abundant literature on the influence of soil macrofauna on soil structure. Amongst these organisms, earthworms, termites and ants are considered to play a key role in regulating the physical, chemical and microbiological properties of soils. Due to these influential impacts, soil ecologists co...
These last twenty years have seen the development of an abundant literature on the influence of soil macrofauna on soil structure. Amongst these organisms, earthworms, termites and ants are considered to play a key role in regulating the physical, chemical and microbiological properties of soils. Due to these influential impacts, soil ecologists co...
The origin of Ngaye River alluvial sediments and the evaluation of the weathering degree of their source rocks are assessed using trace and rare-earth element geochemistry in three bulk sediments and their different size fractions (2000–200 lm, 200–50 lm, 50–2 lm and
The origin of Ngaye River alluvial sediments and the evaluation of the weathering degree of their source rocks are assessed using trace and rare-earth element geochemistry in three bulk sediments and their different size fractions (2000–200 lm, 200–50 lm, 50–2 lm and
