1D Compression Behaviour of Opalinus Clay

  • Valentina FaveroEmail author
  • Alessio Ferrari
  • Lyesse Laloui
Conference paper
Part of the Springer Series in Geomechanics and Geoengineering book series (SSGG)


One of the main concerns related to tunnel excavations, drilling operations and wellbore stability in shales is the generation of excess pore water pressure due to changes in mechanical stress; therefore the consolidation of shales is a fundamental process that must be considered. This paper presents a comprehensive methodology for analysing the compression and consolidation behaviour of shales. An apparatus to perform high-pressure oedometric tests is presented and an analytical method is introduced to analyse the shale consolidation behaviour, which allows information to be gathered on the coefficient of consolidation, stiffness, poroelastic properties, and permeability of the tested material as a function of the applied stress conditions. Results obtained on Opalinus Clay shale using the developed methodology are presented and discussed.


Void Ratio Pore Water Pressure Excess Pore Water Pressure Oedometric Test Vertical Effective Stress 
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Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  • Valentina Favero
    • 1
    Email author
  • Alessio Ferrari
    • 1
  • Lyesse Laloui
    • 1
  1. 1.École Polytechnique Fédérale de Lausanne (EPFL)LausanneSwitzerland

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