Long-term Field Observations of Cyclical and Cumulative Pipe and Ground Movements in Permafrost Terrain, Norman Wells Pipeline, Northwest Territories Canada
Sharon L. Smith, Margo M. Burgess
In the proceedings of: GEO2010 Calgary: 63rd Canadian Geotechnical Conference & 6th Canadian Permafrost ConferenceSession: W1-C
ABSTRACT: ieldObservationsofCyclicalandCumulativePipeandGroundMovementsinPermafrostTerrain,NormanWellsPipeline,NorthwestTerritoriesCanadaSharonL.Smith&MargoM.BurgessGeologicalSurveyofCanada,NaturalResources,Canada,Ottawa,Ontario,CanadaABSTRACTPipeandgroundmovementshavebeendocumentedsincethemid1990sattwopermafrostsitesinthefirst5kmoftheNormanWellsPipelineroutetoinvestigatetheeffectofseasonalcyclingofoilinlettemperature.Seasonalpipemovementsofabout0.2-0.5mhaveoccurredinresponsetoheaveandsettlementrelatedtothecyclicalpipeandgroundtemperatures.Atonesite,wherepipeupliftinitiallyoccurredinresponsetothecyclicalpipetemperature,agravelbermhasbeeneffectiveinreversingtheupwardmovementandinreducingseasonalmovements.Cumulativepipesettlementupto0.3mhasoccurredattheothersiteandlikelyresultedfromincreasingthawpenetration.Cumulativegroundsettlementhasbeengreaterthan0.3m.
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Cite this article:
Sharon L. Smith; Margo M. Burgess (2010) Long-term Field Observations of Cyclical and Cumulative Pipe and Ground Movements in Permafrost Terrain, Norman Wells Pipeline, Northwest Territories Canada in GEO2010. Ottawa, Ontario: Canadian Geotechnical Society.
@article{GEO2010_078,
author = Sharon L. Smith; Margo M. Burgess,
title = Long-term Field Observations of Cyclical and Cumulative Pipe and Ground Movements in Permafrost Terrain, Norman Wells Pipeline, Northwest Territories Canada ,
year = 2010
}
title = Long-term Field Observations of Cyclical and Cumulative Pipe and Ground Movements in Permafrost Terrain, Norman Wells Pipeline, Northwest Territories Canada ,
year = 2010
}