Application of electrical resistivity tomography in assessing complex soil conditions

Authors

  • Sebastian Kowalczyk Faculty of Geology, University of Warsaw, ul. Żwirki i Wigury 93, 02-089 Warsaw
  • Piotr Zawrzykraj Faculty of Geology, University of Warsaw, ul. Żwirki i Wigury 93, 02-089 Warsaw
  • Radosław Mieszkowski Faculty of Geology, University of Warsaw, ul. Żwirki i Wigury 93, 02-089 Warsaw

DOI:

https://doi.org/10.7306/gq.1172

Keywords:

electrical esistivity tomography (ERT), rsistivity cone penetration test (RCPT), peat

Abstract

Appropriate assessment of spatial variation of soil and hydrogeological conditions is a crucial issue in recognizing foundation soil. The best methods to achieve this goal are those that supply continuous rather than scattered data on soil medium variation. Electrical resistivity was measured with the resistivity cone penetration test (RCPT) and electrical resistance tomography (ERT) with electrodes spaced at 1 and 3 m in order to discriminate peat layers beneath low-resistivity clays. Soil conditions determined by drillings and ERT were not concordant, therefore resistivity modelling of the medium was conducted based on geological units determined by drillings and values of apparent resistivity obtained from RCPT. The strata thickness and electrode spacing is shown to have influence on resistivity imaging in complex soil conditions.

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Published

2014-06-11

Issue

Vol 59, No 2 (2015)

Section

Thematic issue

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