AN ASSESSMENT OF THE EFFECT OF ROD LENGTH ON SPT ENERGY CALCULATIONS BASED ON MEASURED FIELD DATA

Geotechnical engineering uses extensively the penetration resistance of sandy soils, as measured by the Standard Penetration Test. In this paper, a total of 1979 blows by hammer from 199 tests were individually analyzed and classified according to the length of rod used for the test as well as the N-value of the test interval. This information is used to reassess the SPT energy adjustments that result from different methodologies and for silty soils. Based on the measured energy for rod lengths greater than 10 m, the influence that short rods have on the energy ratio is estimated for different test interval N-values and is compared to recommended values in the literature.

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

  ASTM International

  100 Barr Harbor Drive
  West Conshohocken, PA  United States  19428-2959
• Authors:
  • Sancio, R B
  • Bray, J D
• Publication Date: 2005-1

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 22-30
• Serial:
  • Geotechnical Testing Journal
  • Volume: 28
  • Issue Number: 1
  • 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: Energy; Field tests; Penetration resistance; Rods; Standards
• Subject Areas: Energy; Geotechnology; Highways; I41: General Soil Surveys;

Filing Info

• Accession Number: 00986697
• Record Type: Publication
• Files: TRIS
• Created Date: Feb 2 2005 12:00AM