Four electrode resistivity probe for porosity evaluation

Joon Han Kim, Hyung Koo Yoon, Se Hyun Cho, Young Su Kim, Jong-Sub Lee

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

The objective of this study is to develop and verify a four electrode resistivity probe (4ERP) for the estimation of electrical properties of saturated soils without polarization at the electrodes. The 4ERP design is categorized by two types: wedge and plane. The wedge type is used for penetrating into the soil samples and the plane type is used for installing into experimental cells such as an oedometer cell. Consolidation tests are carried out on six different sized glass beads. The test results reveal that the shape factor, m, used in Archie's law, is about 1.19 for glass beads. One-dimensional liquefaction tests show that the porosity obtained by the 4ERP is similar to the porosity determined by volume fraction. The porosity profile obtained by the penetration of the 4ERP into the large-scale calibration chamber in the clay-sand mixture is similar to the volume based porosity. Furthermore, the porosity profile estimated by the resistivity is almost the same as the volume based porosity in glass beads. This study demonstrates that the 4ERP may effectively estimate the porosity of saturated soils.

Original languageEnglish
JournalGeotechnical Testing Journal
Volume34
Issue number6
DOIs
Publication statusPublished - 2011 Nov 1

Fingerprint

electrical resistivity
electrode
Porosity
porosity
probe
Electrodes
glass
Soils
Glass
soil
electrical property
Liquefaction
evaluation
liquefaction
Consolidation
consolidation
Volume fraction
Clay
Electric properties
Sand

Keywords

  • Electrical resistivity
  • Porosity
  • Shape factor
  • Wenner array

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology

Cite this

Four electrode resistivity probe for porosity evaluation. / Kim, Joon Han; Yoon, Hyung Koo; Cho, Se Hyun; Kim, Young Su; Lee, Jong-Sub.

In: Geotechnical Testing Journal, Vol. 34, No. 6, 01.11.2011.

Research output: Contribution to journalArticle

Kim, Joon Han ; Yoon, Hyung Koo ; Cho, Se Hyun ; Kim, Young Su ; Lee, Jong-Sub. / Four electrode resistivity probe for porosity evaluation. In: Geotechnical Testing Journal. 2011 ; Vol. 34, No. 6.
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