Extension of the effective stress concept to unsaturated soils has been a major concern for decades. Recent studies significantly contributed to the understanding of the fundamentals behind Bishop's parameter χ which is generally used to define the effective stress for unsaturated soils. Examination of the recently proposed methods showed that the ...
A squeezing Carboniferous formation was met at a depth of 300 m during the excavation of the Saint-Martin-la-Porte access gallery (SMP2) in France within the Lyon-Turin railway link project. Large, time-dependent and anisotropic deformation was observed around the tunnel wall during and after excavation, and difficulties related to tunneling in squ...
International audience
L'application de cycles hydriques sur des sols compactés statiquement à 95% de l'optimum Proctor normal, a des effets sur les propriétés du sol compacté. L'expérience menée jusqu'à 6 et 12 cycles en utilisant du limon sableux B5 en provenance d'une digue de Loire, a montré une augmentation de la perméabilité, une augmentation de la macroporosité as...
International audience
International audience
Given the deficiency of recorded strong ground‐motion data, it is important to understand the effects of earthquake rupture processes on near‐source ground‐motion characteristics and to develop physics‐based ground‐motion simulation methods for advanced seismic hazard assessments. Recently, the interfrequency correlation of ground motions has becom...
International audience
International audience
International audience
