RECTANGULAR HYPERBOLA FITTING METHOD FOR ONE DIMENSIONAL CONSOLIDATION

The time factor--degree of consolidation relation from the Terzaghi theory is assumed as a rectangular hyperbola over a wide range of the time factor. A new method is developed for determination of the coefficient of consolidation from laboratory consolidation test data. The reliability and accuracy is shown to compare very well with the existing standard methods of Taylor and Casagrande. The time settlement curves on the semilogarithmic plots are reclassified and the new method is shown to be valid even for cases in which the curves are of shapes for which the earlier methods could not be applied. The laboratory test is rendered easier and simpler, with fewer readings required, and the initial compression does not affect the time versus the ratio of time to compression plot. (Author)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/01496115
• Corporate Authors:

  American Society for Testing and Materials (ASTM)

  100 Barr Harbor Drive, P.O. Box C700
  West Conshohocken, PA  United States  19428-2957
• Authors:
  • Sridharan, A
  • RAO, A S
• Publication Date: 1981-12

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 161-168
• Serial:
  • Geotechnical Testing Journal
  • Volume: 4
  • Issue Number: 4
  • Publisher: ASTM International
  • ISSN: 0149-6115
  • EISSN: 1945-7545
  • Serial URL: https://www.astm.org/products-services/standards-and-publications/geotechnical-testing-journal.html

Subject/Index Terms

• TRT Terms: Coefficients; Compression; Consolidation; Hyperbolic functions; Laboratories; Rectangles; Soil tests; Soils; Test procedures; Time dependence
• Uncontrolled Terms: Soil consolidation
• Old TRIS Terms: Settlement rate; Time dependent parameters
• Subject Areas: Geotechnology; Highways; I42: Soil Mechanics;

Filing Info

• Accession Number: 00362340
• Record Type: Publication
• Files: TRIS
• Created Date: Oct 30 1982 12:00AM