Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Airfields and Access Roads Performance Assessment in Nunavik, Quebec, Canada
In Nunavik, permafrost degradation is now inevitable and it will eventually threaten the integrity of transportation infrastructures owned by Ministère des Transports du Québec (MTQ). This study was initiated by the MTQ in order to adapt its transportation infrastructures to the new climatic reality. The purpose of this study is to carry out a performance assessment of the Nunavik runways and access roads since their construction in order to determine the appropriate adaptation techniques to reduce permafrost degradation. Thereafter, initial and current base material thickness longitudinal profiles of various runways were compared to determine if settlement occurred. Comparisons between the initial and current runways condition were carried out using air photographs. The assessment made it possible to identify six unstable runways and two unstable access roads. This paper presents the three most unstable runways in Nunavik : Kangirsuk, Salluit and Tasiujaq. Recommendations for the problematic airports, such as permafrost characterization through deep drilling and implementation of mitigation methods, were given at the end of the study. Three mitigation methods are proposed to counter permafrost degradation at Nunavik airports : heat drain, air convective embankment and reflective surface.
Airfields and Access Roads Performance Assessment in Nunavik, Quebec, Canada
In Nunavik, permafrost degradation is now inevitable and it will eventually threaten the integrity of transportation infrastructures owned by Ministère des Transports du Québec (MTQ). This study was initiated by the MTQ in order to adapt its transportation infrastructures to the new climatic reality. The purpose of this study is to carry out a performance assessment of the Nunavik runways and access roads since their construction in order to determine the appropriate adaptation techniques to reduce permafrost degradation. Thereafter, initial and current base material thickness longitudinal profiles of various runways were compared to determine if settlement occurred. Comparisons between the initial and current runways condition were carried out using air photographs. The assessment made it possible to identify six unstable runways and two unstable access roads. This paper presents the three most unstable runways in Nunavik : Kangirsuk, Salluit and Tasiujaq. Recommendations for the problematic airports, such as permafrost characterization through deep drilling and implementation of mitigation methods, were given at the end of the study. Three mitigation methods are proposed to counter permafrost degradation at Nunavik airports : heat drain, air convective embankment and reflective surface.
Airfields and Access Roads Performance Assessment in Nunavik, Quebec, Canada
Beaulac, I. (Autor:in) / Doré, G. (Autor:in)
13th International Conference on Cold Regions Engineering ; 2006 ; Orono, Maine, United States
14.07.2006
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Airfields and Access Roads Performance Assessment in Nunavik, Quebec, Canada
| British Library Conference Proceedings | 2006
Airfields and Access Roads Performance Assessment in Nunavik, Quebec, Canada
| British Library Conference Proceedings | 2006
| TIBKAT | 1965