THREE FUNCTIONS THAT MODEL EMPIRICALLY MEASURED UNFROZEN WATER CONTENT DATA AND PREDICT RELATIVE HYDRAULIC CONDUCTIVITY

Empirically determined data on changes in unfrozen water content occurring as a result of changes in the state of ice and water in soil are discussed with reference to the changes in soil-water retention data for ice-free soil. The similarity between the two types of data is developed. The Brooks and Corey, van Genuchten and Gardner equations are then shown to be applicable to describing unfrozen water content data. These three functions are then used in the model of Mualem and the relative hydraulic conductivity of frozen soil is predicted.

• Corporate Authors:

  U.S. Army Cold Regions Research and Engineering Laboratory

  72 Lyme Road
  Hanover, NH  United States  03755-1290
• Authors:
  • Black, P B
• Publication Date: 1990-5

Media Info

• Features: Figures; References; Tables;
• Pagination: 11 p.

Subject/Index Terms

• TRT Terms: Equations; Forecasting; Frozen soils; Permeability coefficient
• Old TRIS Terms: Unfrozen water content
• Subject Areas: Geotechnology; Highways; I42: Soil Mechanics;

Filing Info

• Accession Number: 00600685
• Record Type: Publication
• Report/Paper Numbers: CRREL Report 90-5
• Files: TRIS
• Created Date: Oct 31 1990 12:00AM