Thermal performance of a section of the MacKenzie Highway

The thermal performance of a shallow road embankment constructed on permafrost in the discontinuous zone of the Mackenzie Valley was monitored over a 5-year period. The shallow (1.2 m) embankment consisted of clean borrow material end dumped on a right-of-way which had previously been cleared of tre...

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Main Author: Goodrich, L. E.
Format: Article in Journal/Newspaper
Language:English
Published: 1983
Subjects:
Online Access:https://nrc-publications.canada.ca/eng/view/ft/?id=8addf126-dbe3-4f58-a547-56057e880d3f
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spelling ftnrccanada:oai:cisti-icist.nrc-cnrc.ca:cistinparc:20375444 2024-09-15T18:18:12+00:00 Thermal performance of a section of the MacKenzie Highway Goodrich, L. E. 1983 text https://nrc-publications.canada.ca/eng/view/ft/?id=8addf126-dbe3-4f58-a547-56057e880d3f https://nrc-publications.canada.ca/eng/view/object/?id=8addf126-dbe3-4f58-a547-56057e880d3f https://nrc-publications.canada.ca/fra/voir/objet/?id=8addf126-dbe3-4f58-a547-56057e880d3f eng eng Permafrost: 4th International Conference, Proceedings, Permafrost: 4th International Conference, July 17, 1983, Fairbanks, Alaska, United States, ISBN: 0-309-03435-3, Publication date: 1983, Pages: 353–358 report_number:DBR-P-1173 permafrost pergélisol soils sol (terre) highways route principale thermal properties propriété thermique climates climat seasons saison cold regions zone froide shallow road embankment hourly ground temperatures settlement thermal conductivity probes permafrost degradation article 1983 ftnrccanada 2024-08-05T14:05:07Z The thermal performance of a shallow road embankment constructed on permafrost in the discontinuous zone of the Mackenzie Valley was monitored over a 5-year period. The shallow (1.2 m) embankment consisted of clean borrow material end dumped on a right-of-way which had previously been cleared of trees. The road was never opened to general traffic; consequently snow removal was minimal. Measurements included hourly ground temperatures recorded with a data logger operating unattended. Settlements were monitored and thermal conductivity probes were installed to yield information on seasonal trends within the embankment and in the various natural materials comprising the active layer. The data indicate that degradation of the permafrost is under way and provide information on the relation between road surface temperatures and climatic factors for this region. On a étudié pendant cinq ans le comportement thermique d'un remblai de route construit sur le pergélisol dans la zone discontinue de la vallée du Mackenzie. Ce remblai de faible hauteur (1,2 m) était formé de matériau de remblai propre, dé versé sur une partie d'emprise préalablement débarrassée de ses arbres. La route n'ayant jamais été ouverte à la grande circulation, les activités de déneigement étaient réduites au minimum. Les mesures prises comportaient l'enregistrement horaire des températures du sol à l'aide d'un appareil enregistreur autonome. Les tassements ont été contrôlés et des sondes de conductivité thermique installées pour obtenir des données sur les tendances saisonnières dans le remblai même et dans les divers matériaux composant la couche active. Les données obtenues indiquent que la dégradation du pergélisol est en cours et fournissent des renseignements sur le rapport entre les températures de surface de la route et les facteurs climatiques de la région. Peer reviewed: Yes NRC publication: Yes Article in Journal/Newspaper Mackenzie Valley permafrost pergélisol National Research Council Canada: NRC Publications Archive
institution Open Polar
collection National Research Council Canada: NRC Publications Archive
op_collection_id ftnrccanada
language English
topic permafrost
pergélisol
soils
sol (terre)
highways
route principale
thermal properties
propriété thermique
climates
climat
seasons
saison
cold regions
zone froide
shallow road embankment
hourly ground temperatures
settlement
thermal conductivity probes
permafrost degradation
spellingShingle permafrost
pergélisol
soils
sol (terre)
highways
route principale
thermal properties
propriété thermique
climates
climat
seasons
saison
cold regions
zone froide
shallow road embankment
hourly ground temperatures
settlement
thermal conductivity probes
permafrost degradation
Goodrich, L. E.
Thermal performance of a section of the MacKenzie Highway
topic_facet permafrost
pergélisol
soils
sol (terre)
highways
route principale
thermal properties
propriété thermique
climates
climat
seasons
saison
cold regions
zone froide
shallow road embankment
hourly ground temperatures
settlement
thermal conductivity probes
permafrost degradation
description The thermal performance of a shallow road embankment constructed on permafrost in the discontinuous zone of the Mackenzie Valley was monitored over a 5-year period. The shallow (1.2 m) embankment consisted of clean borrow material end dumped on a right-of-way which had previously been cleared of trees. The road was never opened to general traffic; consequently snow removal was minimal. Measurements included hourly ground temperatures recorded with a data logger operating unattended. Settlements were monitored and thermal conductivity probes were installed to yield information on seasonal trends within the embankment and in the various natural materials comprising the active layer. The data indicate that degradation of the permafrost is under way and provide information on the relation between road surface temperatures and climatic factors for this region. On a étudié pendant cinq ans le comportement thermique d'un remblai de route construit sur le pergélisol dans la zone discontinue de la vallée du Mackenzie. Ce remblai de faible hauteur (1,2 m) était formé de matériau de remblai propre, dé versé sur une partie d'emprise préalablement débarrassée de ses arbres. La route n'ayant jamais été ouverte à la grande circulation, les activités de déneigement étaient réduites au minimum. Les mesures prises comportaient l'enregistrement horaire des températures du sol à l'aide d'un appareil enregistreur autonome. Les tassements ont été contrôlés et des sondes de conductivité thermique installées pour obtenir des données sur les tendances saisonnières dans le remblai même et dans les divers matériaux composant la couche active. Les données obtenues indiquent que la dégradation du pergélisol est en cours et fournissent des renseignements sur le rapport entre les températures de surface de la route et les facteurs climatiques de la région. Peer reviewed: Yes NRC publication: Yes
format Article in Journal/Newspaper
author Goodrich, L. E.
author_facet Goodrich, L. E.
author_sort Goodrich, L. E.
title Thermal performance of a section of the MacKenzie Highway
title_short Thermal performance of a section of the MacKenzie Highway
title_full Thermal performance of a section of the MacKenzie Highway
title_fullStr Thermal performance of a section of the MacKenzie Highway
title_full_unstemmed Thermal performance of a section of the MacKenzie Highway
title_sort thermal performance of a section of the mackenzie highway
publishDate 1983
url https://nrc-publications.canada.ca/eng/view/ft/?id=8addf126-dbe3-4f58-a547-56057e880d3f
https://nrc-publications.canada.ca/eng/view/object/?id=8addf126-dbe3-4f58-a547-56057e880d3f
https://nrc-publications.canada.ca/fra/voir/objet/?id=8addf126-dbe3-4f58-a547-56057e880d3f
genre Mackenzie Valley
permafrost
pergélisol
genre_facet Mackenzie Valley
permafrost
pergélisol
op_relation Permafrost: 4th International Conference, Proceedings, Permafrost: 4th International Conference, July 17, 1983, Fairbanks, Alaska, United States, ISBN: 0-309-03435-3, Publication date: 1983, Pages: 353–358
report_number:DBR-P-1173
_version_ 1810456326458834944