Analysis of resistivity data obtained from cone penetrometer in contaminated soil layers SCIE SCOPUS

Cited 9 time in WEB OF SCIENCE Cited 9 time in Scopus
Title
Analysis of resistivity data obtained from cone penetrometer in contaminated soil layers
Author(s)
Kim, Yong Sung; Oh, Myoung Hak; Park, Junboum
KIOST Author(s)
Oh, Myoung Hak(오명학)
Alternative Author(s)
오명학
Publication Year
2009-09
Abstract
In horizontally layered soils of different electrical properties, electrical potential distribution becomes complex and the obtained resistivity data may be limited in reflecting the actual soil profile. Thus the objective of this study was to identify the factors that affect resistivity measurement on the cone penetrometer and further investigate the sensitivity of measured resistivity to different types and concentrations of contaminants at the subsurface level. First, a theoretical resistivity equation was derived to provide a means of computing the geometric factor. The effective volume of measurement on the cone penetrometer was investigated and laboratory soil box tests verified the dominance of partially high resistivity regions within the effective volume of measurement over the apparent resistivity. Such effect was found to lead to possible discrepancies between the recorded resistivity data and the actual depth of measurement. Measurements on contaminated soil layers indicated that resistivity cones are efffective in delineating inorganic contaminants in soils of high water contents, and detecting NAPLs floating above the groundwater table provided that soils adjacent to the plume are not dry of water.
ISSN
0943-0105
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/4263
DOI
10.1007/s00254-008-1634-0
Bibliographic Citation
ENVIRONMENTAL GEOLOGY, v.58, no.6, pp.1309 - 1317, 2009
Publisher
SPRINGER
Subject
ELECTRICAL-RESISTIVITY
Keywords
Resistivity cone; Layered soils; Groundwater contamination; Heavy metals; NAPLs
Type
Article
Language
English
Document Type
Article
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