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Frost heave prediction of chilled pipelines buried in unfrozen soils

From National Research Council Canada

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Subjectfrost heaving; gas pipelines; heat transfer; mass transfer; finite difference formulation; segregation potential; soil freezing characteristics
Abstract
Frost heave is an important consideration in the design of buried chilled pipelines. A procedure for calculating the amount of heave under a chilled gas pipeline is presented based on a finite-difference formulation of the heat and mass transfer in saturated soils. The frost heave of the soil is characterized in terms of the segregation potential concept developed in earlier papers by the authors. Good agreement is found between the predictions of heave obtained with this procedure and that observed in long-term full- scale experiments at a test site in Calgary, Canada. Additional calculations are presented to explore the influence of pipeline temperature, pipe insulation, and ground temperature on frost heave of buried pipelines.
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  • Canadian Geotechnical Journal 21, no. 1: 100–115.
LanguageEnglish
Peer reviewedYes
IdentifierDBR-P-1344
NRC numberNRCC 25271
NRC-IRC-581
NPARC number20375883
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Record identifier2b008fb4-e025-4383-9135-98227a7a4e4f
Record created2012-07-23
Record modified2024-03-22
Date modified: