PORE-WATER PRESSURE PROFILE OF A FREEZING SOIL

Recently there have been many attempts to model the coupled heat and mass transfer in freezing soils. The development of a hydrodynamic model has increased the interest in this area. Unfortunately, there are very few experiments that include all of the variables that are necessary for the hydrodynamic model. There is especially a lack of measurement of the pore-water pressures during soil freezing. This paper describes the use of tensiometers to measure water movement in a freezing soil, and also indicates how the data can be used to calculate the freezing phenomena. The tensiometer is limited to measuring pressures in the unfrozen portion of the soil. In this study, the pore-water pressures at various locations ahead of the freezing front were measured. In addition, the moisture characteristic curves and also the unsaturated hydraulic conductivity of the silt soil used in the experiments were obtained. The data obtained can be used to verify hydrodynamic models of the freezing process. (Author)

  • Corporate Authors:

    Royal Norwegian Council for Scientif & Ind Res

    Gaustadalleen 25
    Oslo 3,   Norway 
  • Authors:
    • Fukuda, M
    • Luthin, J N
  • Publication Date: 1980-6

Media Info

  • Features: Figures; References;
  • Pagination: p. 31-36
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00324554
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 12 1981 12:00AM