THE THEORETICAL INTERPRETATION OF FIELD OBSERVATIONS OF SOIL SWELLING THROUGH A MATERIAL COORDINATE TRANSFORMATION

The nature of material coordinate transformations and their importance to the theoretical interpretation of time-dependent data taken on swelling soil-water-air systems is discussed. A material coordinate transformation that is based on a special case of a general relation derived by Raats and Klute, but that has not yet been applied to swelling soil, is proposed as a useful expression with which to describe one-dimensional soil water processes in the field. This transformation requires only the measurement of bulk density in time sequences from a set of one or more fixed points and, therefore, should be especially valuable when used in conjunction with dual energy gamma-ray measurements of soil profile properties. An illustrative application of the proposed transformation is made to interpret dual energy gamma-ray data on the swelling of Avondale clay loam.

• Supplemental Notes:
  • Proceedings of the 40th Annual Meeting, Soil Science of America 28 November - 3 December 1976, Houston, Texas
• Corporate Authors:

  Soil Science Society of America

  677 South Segoe Road
  Madison, WI  United States  53711
• Authors:
  • Sposito, G
  • Giraldez, J V
  • Reginato, R J
• Conference:
  • Soil Science Society of America, Proceedings
• Publication Date: 1976-3

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 208-211
• Serial:
  • Volume: 40
  • Issue Number: 2

Subject/Index Terms

• TRT Terms: Bulk density; Field studies; Gamma rays; Mathematical transformations; Mixtures; Soil profiles; Soil water; Swelling; Swelling soils; Time dependence
• Old TRIS Terms: Field observation; Soil swell; Soil water mixtures; Time dependent parameters
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00134737
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 23 1976 12:00AM