Fort Simpson, N.W.T. engineering site information: soil and permafrost conditions
Thirty boreholes were drilled from 18 August to 4 September 1958 at various locations throughout the island on which the town of Fort Simpson, N.W.T. is located. One-third of the boreholes were associated with the construction of a hostel for the Department of Northern Affairs and National Resources...
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| Format: | Report |
| Language: | English |
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National Research Council of Canada
1961
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| Online Access: | https://doi.org/10.4224/20331580 https://nrc-publications.canada.ca/eng/view/ft/?id=d782ca5f-3f27-4582-98f7-8f049e40151c https://nrc-publications.canada.ca/eng/view/object/?id=d782ca5f-3f27-4582-98f7-8f049e40151c https://nrc-publications.canada.ca/fra/voir/objet/?id=d782ca5f-3f27-4582-98f7-8f049e40151c |
| Summary: | Thirty boreholes were drilled from 18 August to 4 September 1958 at various locations throughout the island on which the town of Fort Simpson, N.W.T. is located. One-third of the boreholes were associated with the construction of a hostel for the Department of Northern Affairs and National Resources; the remainder were located in areas where the land-clearing dates, some extending back to the nineteenth century, were known. The occurrence of a gravelly stratum encountered at depths from 20 to 30 feet below the ground surface restricted the depths of the boreholes. Soil sampling was not carried out at each borehole but enough samples were taken at random locations and depths to describe the soil types adequately. Land use history, the occurrence of permafrost, and the soils at the borehole locations are described. Du 18 août au 4 septembre 1958, on a foré trente trous de sonde en divers points de l'île où se trouve la ville de Fort Simpson (Territoires du Nord-Ouest). Un tiers de ces sondages concernait la construction d'un hôtel destiné au ministère du Nord canadien et des ressources nationales; les autres étaient situés dans des zones dont les dates de dé frichement étaient connues; certains remontaient d'ailleurs au siècle dernier. Ayant rencontré une strate graveleuse à une profondeur comprise entre 20 et 30 pieds sous la surface du sol, on a dû réduire la profondeur des sondages. On n'a pas prélevé d'échantillons de sol à chacun des trous de sonde, mais on en a prélevé suffisamment, au hasard des lieux et des profondeurs, pour être en mesure de décrire correctement les types de sol. Dans ce mémoire, l'auteur relate l'historique de l'exploitation des terrains, explique la formation du pergélisol, et décrit les sols qui entourent les trous de sonde. Peer reviewed: No NRC publication: Yes |
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