Frost heave prediction of chilled pipelines buried in unfrozen soils

• Author(s) / Creator(s)

  • Konrad, J. M.
  • Morgenstern, N. R.

• 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.

• Date created

  1984

• Subjects / Keywords

  • Frost heave
  • Buried pipelines
  • Chilled pipelines

• Type of Item

  Article (Published)

• DOI

  https://doi.org/10.7939/R3T57P

• License

  © 1984 NRC Research Press (Canadian Science Publishing). This version of this article is open access and can be downloaded and shared. The original author(s) and source must be cited.