Objectif
The multiple barrier concept is the cornerstone of all proposed schemes for underground disposal of radioactive wastes. The concept invokes a series of barriers, both engineered and natural, between the waste and the surface. Achieving this concept is the primary objective of all disposal programmes, from site appraisal and characterisation to repository design and construction. However, the performance of the repository as a whole (waste, buffer, engineering disturbed zone, host rock), and in particular its gas transport properties, are still poorly understood. Issues still to be adequately examined that relate to understanding basic processes include: dilational versus visco-capillary flow mechanisms; long-term integrity of seals, in particular gas flow along contacts; role of the EDZ as a conduit for preferential flow; laboratory to field up-scaling. Understanding gas generation and migration is thus vital in the quantitative assessment of repositories and is the focus of the research in this proposal for an integrated, multi-disciplinary project. The FORGE proposal is for a pan-European project with links to international radioactive waste management organisations, regulators and academia, specifically designed to tackle the key research issues associated with the generation and movement of repository gasses. Of particular importance are the long-term performance of bentonite buffers, plastic clays, indurated mudrocks and crystalline formations. Further experimental data are required to reduce uncertainty relating to the quantitative treatment of gas in performance assessment. FORGE will address these issues through a series of laboratory and field-scale experiments, including the development of new methods for up-scaling allowing the optimisation of concepts through detailed scenario analysis. The FORGE partners are committed to training and CPD through a broad portfolio of training opportunities and initiatives which form a significant part of the project.
Champ scientifique
Appel à propositions
FP7-Fission-2008
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Régime de financement
CP-IP - Large-scale integrating projectCoordinateur
SN2 1EU SWINDON WILTSHIRE
Royaume-Uni
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Participants (24)
Participation terminée
0402 MIOVENI - ARGES
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CA24 3HU MOOR ROW
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169 03 Solna
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1160 Bruxelles / Brussel
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92298 Chatenay Malabry
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75015 PARIS 15
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28040 MADRID
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08034 Barcelona
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75794 Paris
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59651 Villeneuve D Ascq Cedex
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75008 Paris
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50667 Koln
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5430 Wettingen
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4000 Liege
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27160 Eurajoki
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160 00 Praha
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250 68 Husinec Rez
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92260 Fontenay Aux Roses
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115400 Mioveni
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04279 Leipzig
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LT-44403 Kaunas
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5200 BRUGG
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1000 BRUSSEL
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110000 Praha
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