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Granite exploration by using electrical resistivity imaging (ERI): a case study in Johor

M. S. I., Zaini and Mohd Fakhrurrazi, Ishak and M. F., Zolkepli and M. S., Wahap and J. I., Jaafar Sidek and A., Mohd Yasin and M. N., Zolkepli and M. H., Mohmad Sidik and K. Z., Mohd Arof and Z., Abu Talib (2020) Granite exploration by using electrical resistivity imaging (ERI): a case study in Johor. International Journal of Integrated Engineering, 12 (8). pp. 328-347. ISSN 2229-838X (Print); 2600-7916 (Online)

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Abstract

Electrical Resistivity Imaging (ERI) is a tool used in near surface geophysical surveys by flowing an electric current through electrodes that were injected into the ground. The usage of electrical resistivity imaging (ERI) method dominated by geophysicist has increased tremendously in geotechnical engineering application owing to the efficiency and effectiveness of the method in term of time, cost and also data coverage. The survey performed with respect to the particular reference to ERI in determining the granite rock underneath the ground. There were seven (7) lines of ERI performed at the study area by using ABEM Terrameter LS 2 set of equipment based on Schlumberger protocol. Six (6) boreholes were also drilled to obtain engineering properties of rock at the study area. In order to develop the relationship between resistivity and engineering properties, a comparison between borehole field test result and the resistivity value were made. Results from the ERI indicated the presence of zones with high resistivity values identified as overburden soil, fractured granite and solid granite. The findings of this study also showed that the electrical resistivity imaging coupled with borehole drillings were applicable tools for the determination of the granite rock underneath the ground via subsurface profiles and such as depth of overburden soil and engineering properties of soil. In conclusion, ERI is a method that does not disturb the structure or the function of the soil which successfully became the best method in exploring the granite rock.

Item Type: Article
Uncontrolled Keywords: Electrical resistivity imaging; Geophysical survey; Geophysicist; Granite rock; Borehole; Schlumberger protocol; Engineering properties of soil
Subjects: Q Science > QC Physics
T Technology > TA Engineering (General). Civil engineering (General)
Faculty/Division: Centre of Excellence: Earth Resources & Sustainability Centre (ERAS)
Faculty of Civil Engineering Technology
Depositing User: Dr. Mohd Fakhrurrazi Ishak
Date Deposited: 12 Oct 2020 06:24
Last Modified: 12 Oct 2020 06:24
URI: http://umpir.ump.edu.my/id/eprint/29472
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