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http://dx.doi.org/10.7843/kgs.2007.23.7.47

Applicability of Electrical Conductivity Monitoring Technique for Soil-bentonite Barrier  

Oh, Myoung-Hak (Coastal Eng. Research Dept., Korea Ocean Research & Development Institute)
Yoo, Dong-Ju (Foundation Eng. Dept., Geotech & Geology Division, Yooshin Eng. Corp.)
Kim, Yong-Sung (Dept. of Civil & Environmental Eng., Seoul National Univ.)
Park, Jun-Boum (Dept. of Civil & Environmental Eng., Seoul National Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.23, no.7, 2007 , pp. 47-55 More about this Journal
Abstract
In this study, applicability of electrical conductivity monitoring technique for containment barrier such as soil-bentonite wall was evaluated. Laboratory tests including permeability tests and column tests were performed to understand variations in electrical conductivity at different bentonite contents, hydraulic conductivities, and heavy metal concentrations. The electrical conductivity of compacted soil-bentonite mixtures was found to increase proportionally with bentonite content. Accordingly, the hydraulic conductivity of compacted soil-bentonite mixtures which decreases linearly with increasing bentonite content was found to have an inversely proportional relationship with the electrical conductivity. In column tests, electrical conductivity breakthrough curves and concentration breakthrough curves were simultaneously obtained. These results indicated that electrical conductivity measurement can be an effective means of detecting heavy metal transport at the desired locations within barriers and verifying possible contaminant leakage. Experimental results obtained from this study showed that the electrical conductivity measurement can be a promising tool for monitoring of containment barrier.
Keywords
Bentonite content; Electrical conductivity; Heavy metal transport; Hydraulic conductivity; Soil-bentonite;
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Times Cited By KSCI : 1  (Citation Analysis)
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1 오명학, 이기호, 박준범 (2004), '함수비와 간극수 오염이 불포화 사질토의 전기비저항에 미치는 영향', 대한토목학회 논문집, 제24권, 제1C호, pp.27-34
2 Mitchell, J. K., Bary, J. D., and Mitchell, R. A. (1995), 'Material interactions in solid waste landfills, Geoenvironment 2000, Geotechnical Special Publication No. 46, ASCE, pp.568-590
3 Yoon, G. L., Oh, M. H., and Park, J. B. (2002), 'Laboratory study of landfill leachate effect on resistivity in unsaturated soil using cone penetrometer', Environmental Geology, Vol.43, No.1-2, pp.18 -28   DOI
4 McBride, M. (1994), Environmental Chemistry of Soils, Oxford University Press, New York
5 Gleason, M. H., Daniel, D. E., and Eykholt, G. R. (1997), 'Calcium and sodium bentonite for hydraulic containment applications', Journal of Geotechnical and Geoenvironmental Engineering, Vol. 123, No. 5, pp.438-445   DOI   ScienceOn
6 Kenney, T., Van Veen, W., Swaloow, M., and Sungaila, M. (1992), 'Hydraulic conductivity of compacted bentonite-sand mixtures', Canadian Geotechnical Journal, Vol. 29, pp.364-374   DOI
7 Campanella, R. G. and Weemees, I. (1990), 'Development and use of an electrical resistivity cone for groundwater contamination studies', Canadian Geotechnical Journal, 27, pp.557-567   DOI
8 Daniel, D. E. (1993), Clay liners, Geotechnical practice for waste disposal, Daniel, D. E., Ed., Chapman & Hall, London, England, pp.137-163
9 Abu-Hsaasnein, Z. S., Benson, C. H., Wang, X., and Blotz, L. R. (1996), 'Determining bentonite content in soil-bentonite mixtures using electrical conductivity', Geotechnical Testing Journal, Vol.19, No.1, pp.51-57   DOI
10 Alther, G. R. (1982), 'The role of bentonite in soil dealing application', Bull. Assn. of Engrg., Geologists, 19, pp.201-409
11 유동주, 오명학, 김용성, 박준범 (2006), '벤토나이트 슬러리의 전기적 특성에 대한 영향인자 분석', 한국지반공학회 논문집, 제22권, 제10호, pp.21-32   과학기술학회마을
12 Rinaldi, V. A. and Cuestas, G. A. (2002), 'Ohmic conductivity of a compacted silty clay', Journal of Geotechnical and Geoenvironmental Engineering, 128, pp.824-835   DOI   ScienceOn
13 ASTM (1982), 'Standard test methods for electrical conductivity and resistivity of water', ASTM D 1125-82, Pennsylvania, pp.149 -156
14 Mitchell, J. K. (1993), Fundamentals of soil behavior, 2nd Ed., John Wiley & Sons, New York, N.Y
15 정하익 (1998), 지반환경공학, 도서출판 유림
16 Appolonia, D., Christoper, R. R. (1979), 'Soil-bentonite slurry trench cut-off walls, Geotechnical Exhibition and Technical Conference, Chicago, Illinois