Back analysis of permeability parameters in Boom clay

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Abstract

The permeability sealing and self-healing models for Boom clay are developed to describe the time evolution law of permeability in EdZ (Excavation disturbed Zone) due to excavation and lining. A new approach is programmed on the basis of hydro-mechanical coupled model and back analysis has been done according to field measurements of pore water pressure with time. The achievements show that the permeability of Boom clay is in the order of 10-12 m/s. The back analysis results of permeability parameters can be used to study the hydro-mechanical behavior of Boom clay in long-term stability analysis.

Details

Original languageEnglish
Title of host publicationImpact of thermo-hydro-mechanical chemical (THMC) processes on the safety of underground radioactive waste repositories. Proceedings of the European Commission TIMODAZ-THERESA International Conference, Luxembourg, 29 September – 1 October 2009
Place of PublicationBrussels, Belgium
Pages489-494
Publication statusPublished - Dec 2012
EventInternational conference and workshop "Impact of Thermo-Hydro-Mechanical-Chemical (THMC) processes on the safety of underground radioactive waste repositories" - European Commission, Luxembourg, Luxembourg
Duration: 29 Sep 20091 Oct 2009

Publication series

NameEUR report
NumberEUR 25527 EN

Conference

ConferenceInternational conference and workshop "Impact of Thermo-Hydro-Mechanical-Chemical (THMC) processes on the safety of underground radioactive waste repositories"
CountryLuxembourg
CityLuxembourg
Period2009-09-292009-10-01

Keywords

  • permeability, self- sealing, EdZ (Excavation disturbed Zone), back analysis, pore pressure, Hydro-mechanical coupling, field measurement

ID: 107122