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The influence of soil moisture content and density on its small embankment electrical resistivity

Zainal Abidin, Mohd Hazreek and Saad, Rosli and Ahmad, Fauziah and Wijeyesekera, Devapriya Chitral (2013) The influence of soil moisture content and density on its small embankment electrical resistivity. In: Proceedings of the 4th European Conference of Civil Engineering (ECCIE '13) , 8-10 Oktober 2013, Antalya, Turkey . (Unpublished)

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Abstract

Electrical resistivity method (ERM) has emerged as a promising alternative tool in sciences and engineering in the past decade. From past experience, the electrical resistivity value (ERV) obtained from resistivity survey has demonstrated some ambiguous outcomes that prove to be difficult to deliver in sound and definitive ways especially in engineering perspectives. Common practice in the past has always been questioned due to its qualitative anomaly and being image obsessed that led to undefined ambiguities derived from uncertainties in the soil. Hence, this study presents the results of an investigation into the influence of basic geotechnical properties with particular reference to moisture content and density on its electrical resistivity value using small trial embankment. A small embankment of Gravelly SAND and Silty SAND was tested using ABEM Terrameter SAS (4000) set in place to obtain the resistivity value in this small embankment constructed with soil placed in a loose condition. Soil samples obtained from three selected locations within the embankment was tested for moisture content (w), density (ρ), and particle size distribution. The observations showed that the ERV was a function of the moisture content and density variations of the soil and was also associated to soil particle variations. Gravelly SAND has a relationship of ERV ∞ 1/w and ERV ∞ ρ while Silty SAND showed a relationship of ERV ∞ 1/w and ERV ∞ 1/ρ. Furthermore, this study also showed that the ERV was high value which was possibly due to the influence of the loose soil embankment condition. Hence, careful interpretation needs to be considered especially when dealing with resistivity test in smaller than usual scale with soil being a loose condition.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: electrical resistivity value; ambiguities; moisture content; density; small trial embankment; loose soil
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA703-711 Engineering geology. Rock mechanics. Soil mechanics.
Divisions: Faculty of Civil and Environmental Engineering > Department of Infrastructure and Geomatic Engineering
Depositing User: Normajihan Abd. Rahman
Date Deposited: 29 Jun 2015 06:59
Last Modified: 29 Jun 2015 06:59
URI: http://eprints.uthm.edu.my/id/eprint/4511
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