Regional Thermohydrological Effects of an Underground Repository for Nuclear Wastes in Hard Rock
Regional temperature effects are studied for different waste forms, repository dimensions and rock formations. The type of reprocessing treatment and the length of cooling period of the nuclear wastes before emplacement into the repository are found to be two of the more important factors.
Thermally induced fluid flow is calculated assuming a simple two-fracture system to make a “worst case” estimate of the transit time of water from repository to ground surface. Recharge capacity from the surrounding formation is found to be a controlling factor.
KeywordsRock Mass Nuclear Waste Spend Fuel Recharge Zone Vertical Fracture
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