Experimentation of several mitigation methods in Tasiujaq Airport to minimize the effects caused by the melting of permafrost

Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2009

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Since the beginning of the 1990s an important increase in the mean annual air temperatures has been recorded in Nunavik, Québec, Canada. This has lead to the degradation of permafrost, which is threatening the stability of airport and road embankments in the region. In the summer of 2007 a test-site was established at Tasiujaq Airport to study the effect of three different mitigations methods: heat drain, air convection embankment, and gentle slope (8:1). The methods were constructed in the shoulder of the runway embankment, each method over a distance of 50 m. In each section thermistors were installed to study the annual variations of the thermal regime inside the different embankments. After one year of monitoring, interesting cooling trends have been observed in the different test-sections and a substantially reduced maximum thaw depth have been registered during the thawing season.
Original languageEnglish
Title of host publicationCold Regions Engineering 2009 : Cold Regions Impacts on Research, Design, and Construction
Number of pages653
Place of publicationReston, Virginia
PublisherAmerican Sociaty of Civil Engineers
Publication date2009
Pages171-182
ISBN (print)978-0-7844-1072-1
StatePublished

Conference

ConferenceConference on Cold Regions Engineering
Number14
CityDuluth, Minnesota, United States
Period01/01/09 → …

Keywords

  • Air convection embankment, Cold regions, Heat drain, Mitigation methods, Embankment design, Permafrost protection
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