Permafrost in Marine Deposits at Ilulissat Airport in Greenland, Revisited

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    Abstract

    Ilulissat Airport was constructed in 1982 to 1984 after detailed geotechnical investigations as the construction site included up to 12 m thick basins of marine clay deposits. Despite soil temperatures of approx -3oC the soil appeared unfrozen from 4 to 5 m below ground surface due to a high residual salt content in the porewater. However, in the less saline top zone massive ice layers was found constituting up to 30 volume%. These formations representing a type example of saline permafrost caused the planned position of the runway to be shifted towards northwest and a removal of the layers and substitution with compacted blasted rock fill. However, a test fill of 2.5 m of rock fill and coarse gravel was constructed in the abandoned area in order to establish experiences for future constructions. Background and previous findings will be covered and present activities are topics in a companying paper.
    Original languageEnglish
    Title of host publicationProceedings of the Ninth International Conference on Permafrost
    Number of pages1054
    Volume1
    Place of PublicationFairbanks
    PublisherInstitute of Northern Engineering, University of Alaska Fairbanks
    Publication date2008
    Pages445-450
    ISBN (Print)978-0-9800179-2-2
    Publication statusPublished - 2008
    Event9th International Conference on Permafrost - Fairbanks, AK, United States
    Duration: 29 Jun 20083 Jul 2008
    Conference number: 9
    http://www.nicop.org/

    Conference

    Conference9th International Conference on Permafrost
    Number9
    Country/TerritoryUnited States
    CityFairbanks, AK
    Period29/06/200803/07/2008
    Internet address

    Keywords

    • airport, construction, embankment, freezing point depression, saline permafrost, test fill

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