EVALUATION OF MULTI-ELECTRODE EARTH RESISTIVITY TESTING IN KARST

In order to study the effectiveness of multi-electrode resistivity testing in geotechnical site investigation in karst areas with clay soils, data from over 140 resistivity tests at 2 sites was collected and compared with results from 51 borings. The tests were conducted to evaluate the effect of electrode arrangement and the presence of conductive utilities, to determine the repeatability of the results, and to evaluate the effectiveness of the method in determining depth to bedrock and the location and size of voids. Results demonstrated that multi-electrode resistivity can reliably map depth to bedrock with excellent repeatability, although there was some smoothing in areas where the true bedrock surface is highly irregular. Recommendations for using resistivity testing as a site investigation tool are given.

• Availability:
  • 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:
  • Roth, MJS
  • Nyquist, J E
• Publication Date: 2003-6

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 167-178
• Serial:
  • Geotechnical Testing Journal
  • Volume: 26
  • Issue Number: 2
  • 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: Bedrock; Clay soils; Foundation soils; Geotechnical engineering; Highway engineering; Karst; Resistivity method; Sinkholes; Soil science; Soil tests
• Subject Areas: Geotechnology; Highways; I42: Soil Mechanics;

Filing Info

• Accession Number: 00943693
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 11 2003 12:00AM