1D compression behaviour of Opalinus Clay

Alessio Ferrari, Alessio Ferrari, Valentina Favero, Lyesse Laloui

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

One of the main concerns related to tunnel excavations, drilling operations and wellbore stability in shales is the generation of excess pore waterpressure due to changes in mechanical stress; therefore the consolidation of shales is a fundamental process that must be considered. This paper presents a compre-hensive methodology for analysing the compression and consolidation behaviour of shales. An apparatus to perform high-pressure oedometric tests is presented andan 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 shaleusing the developed methodology are presented and discussed.
Original languageEnglish
Title of host publicationAdvances in Laboratory Testing and Modelling of Soils and Shales (ATMSS)
Pages322-329
Number of pages8
Publication statusPublished - 2017

Publication series

NameSPRINGER SERIES IN GEOMECHANICS AND GEOENGINEERING

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology
  • Mechanics of Materials

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