Monitoring Disturbances in the Repository System during Construction Process: Experiences from Natural Decay Series Studies at the Pyhäsalmi Mine (Central Finland)

N. Marcos, J. Suksi, Kari Rasilainen, J. Antikainen

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    1 Citation (Scopus)

    Abstract

    Prior to the selection of the site for nuclear waste disposal, the performance of the repository is assessed based on general geological data of sites under investigation. Once the site has been selected, the results of the site investigations are used to establish the baseline condition to monitor and evaluate the induced processes during the construction of the repository. One of the processes considered is the change in hydraulic properties in the bedrock due to excavation of tunnels and other open spaces. Within this framework, the results of natural decay series studies in rock samples from the Pyhäsalmi mine collected in the nearby of a water-conducting fracture at the depths of 1275 and 1325 m may give insights on the influence of the excavation-induced changes, if any, in the groundwater flow. The spatial and temporal scale of these changes is also evaluated. The methodology used in this work could be applied to add confidence in the establishment of the baseline conditions to better assess the evolution of changes in groundwater flow patterns during and after construction of a repository system.
    Original languageEnglish
    Title of host publicationScientific Basis for Nuclear Waste Management XXVII
    EditorsV.M. Oversby, L.O. Werme
    PublisherMaterials Research Society
    Pages577-582
    ISBN (Print)1-55899-752-0, 978-1-55899-752-3
    DOIs
    Publication statusPublished - 2004
    MoE publication typeA4 Article in a conference publication
    Event27th MRS Symposium on the Scientific Basis for Nuclear Waste Management - Kalmar, Sweden
    Duration: 15 Jun 200319 Jun 2003

    Publication series

    SeriesMRS Online Proceedings
    Volume807
    ISSN1946-4274

    Conference

    Conference27th MRS Symposium on the Scientific Basis for Nuclear Waste Management
    CountrySweden
    CityKalmar
    Period15/06/0319/06/03

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