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http://dx.doi.org/10.7843/kgs.2006.22.7.45

Applicability of Resistivity/Capacitance Measurement on CPT Module for Investigation of Subsurface Contamination  

Oh, Myoung-Hak (Coastal Engrg. Research Dept., Korea Ocean Research & Development Institute)
Kim, Yong-Sung (Dept. of Civil, Urban & Geosystem Engrg., Seoul National Univ.)
Park, Jun-Boum (Dept. of Civil, Urban & Geosystem Engrg., Seoul National Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.22, no.7, 2006 , pp. 45-54 More about this Journal
Abstract
Resistivity cone penetrometer test (RCPT) can be employed at a relatively low cost for in-situ delineation of subsurface contamination. While the resistivity measurement has a potential to investigate the subsurface contamination, resistivity measurements alone will lead to some degree of ambiguity in the results. In this study, capacitance measurement was incorporated into the RCPT to overcome the ambiguity inherent in electrical resistivity measurements. This study is focused on verifying the applicability of resistivity and capacitance measurements of CPT module to provide information on subsurface contaminated by heavy metal and petroleum hydrocarbon. Laboratory model tests were performed to evaluate the sensitivity of the measured resistivity and relative capacitance on the water content and different types of contaminants. Test results show that simultaneous measurement of electrical resistivity and capacitance can give more reliable information on subsurface contamination. Electrical measurements of the CPT module showed high applicability to be used in detecting saturated soils contaminated by heavy metal and diesel plume floating above the groundwater table.
Keywords
Capacitance; Cone penetrometer test; Diesel fuel contamination; Electrical resistivity; Heavy metal contamination;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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