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Fractures and self-healing within the excavation disturbed zone in clays

Fractures and self-healing within the excavation disturbed zone in clays

Objective

As in all nuclear power generating countries, high and long-lived radioactive waste management is an important environmental issue today. Underground storage in deep clay geological formation is one of the promising options to dispose these wastes. An essential item for the long-term safety of High Level Waste underground repositories is the evaluation of the Excavation Disturbed Zone and of the evolution with time of both mechanical and transport properties in this zone. The perturbation of the excavation may induce a significant increase of the permeability, related to diffuse and/or localised crack proliferation in the material. Fortunately self-healing properties of clays can in turn reduce the permeability with time. At this time, these processes are not well known and are only poorly investigated. The main objective of the proposed project is to understand and to quantify these processes.

Leaflet | Map data © OpenStreetMap contributors, Credit: EC-GISCO, © EuroGeographics for the administrative boundaries

Coordinator

ESV EURIDICE GIE (EUROPEAN UNDERGROUND RESEARCH INFRASTRUCTURE FOR THE DISPOSAL OF WASTE IN A CLAY ENVIRONMENT)

Address

Boeretang 200
2400 Mol

Belgium

Participants (8)

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CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE

France

GROUPEMENT D'INTÉRÊT POUR L'ETUDE DES STRUCTURES SOUTERRAINES DE STOCKAGE

France

INSTITUT NATIONAL POLYTECHNIQUE DE GRENOBLE

France

KATHOLIEKE UNIVERSITEIT LEUVEN RESEARCH AND DEVELOPMENT

Belgium

NATIONAL COOPERATIVE FOR THE DISPOSAL OF RADIOACTIVE WASTE

Switzerland

SOLEXPERTS AG

Switzerland

SWISS FEDERAL INSTITUTE OF TECHNOLOGY LAUSANNE

Switzerland

UNIVERSITE JOSEPH FOURIER - GRENOBLE 1

France

Project information

Grant agreement ID: FIKW-CT-2001-00182

  • Start date

    1 December 2001

  • End date

    30 November 2004

Funded under:

FP5-EAECTP C

  • Overall budget:

    € 1 974 595

  • EU contribution

    € 900 000

Coordinated by:

ESV EURIDICE GIE (EUROPEAN UNDERGROUND RESEARCH INFRASTRUCTURE FOR THE DISPOSAL OF WASTE IN A CLAY ENVIRONMENT)

Belgium

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