The role of anisotropy on the volumetric behaviour of opalinus clay upon suction change

Alessio Ferrari, Alessio Ferrari, Alberto Minardi, Eleonora Crisci, Lyesse Laloui

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Abstract

An experimental investigation to analyse the anisotropic volumetric response of shaly and sandy facies of Opalinus Clay upon suction variations ispresented. Obtained results demonstrate the different behaviour of the tested facies to a wetting-drying cycle. The shaly facies exhibits higher water retentioncapacity and stronger volumetric response than the sandy facies. Anisotropic response is experienced by both facies with the strain perpendicular to beddinghigher than in the parallel direction. The sandy facies exhibits a more pronounced anisotropic behaviour in particular during the drying phase. A detailedanalysis of the response in the two directions with respect to the bedding orientation proves that the different anisotropic behaviour between the two facies ismainly caused by a different response parallel to bedding rather than perpendicular.
Lingua originaleEnglish
Titolo della pubblicazione ospiteAdvances in Laboratory Testing and Modelling of Soils and Shales (ATMSS)
Pagine315-321
Numero di pagine7
Stato di pubblicazionePublished - 2017

Serie di pubblicazioni

NomeSPRINGER SERIES IN GEOMECHANICS AND GEOENGINEERING

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All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology
  • Mechanics of Materials

Cita questo

Ferrari, A., Ferrari, A., Minardi, A., Crisci, E., & Laloui, L. (2017). The role of anisotropy on the volumetric behaviour of opalinus clay upon suction change. In Advances in Laboratory Testing and Modelling of Soils and Shales (ATMSS) (pagg. 315-321). (SPRINGER SERIES IN GEOMECHANICS AND GEOENGINEERING).