Interpretation of 2D resistivity with engineering characterization of subsurface exploration in Nusajaya Johor, Malaysia

Mohd Akip Tan, S. N. and Md Dan, M. F. and Edy Tonnizam, M. and Saad, R. and Madun, Aziman and Hazreek, Z. A. M. (2018) Interpretation of 2D resistivity with engineering characterization of subsurface exploration in Nusajaya Johor, Malaysia. Journal of Physics: Conference Series, 995. pp. 1-6. ISSN 1742-6588

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Abstract

2-D resistivity technique and pole-dipole array with spacing of 2 m electrode and total spacing of 80 m were adopted to map and characterize the shallow subsurface in a sedimentary area at Nusajaya, Johor. Geological field mapping and laboratory testing were conducted to determine weathering grades.Res2Dinv software was used to generate the inversion model resistivity. The result shows sandstone contains iron mineral (30-1000ohm-m) and weathered sandstone (500-1000 ohm-m). The lowest layer represents sandstone and siltstone with the highest range from 1500 through 5000 ohm-m. The weathering grade IV and V of sandstone in the actual profile indicates the range from 30 to 1000 ohm-m, whereas grade II and III in ground mass matched the higest range. Overall, the increase of weathering grade influenced both the physical properties and strength of rocks.

Item Type:	Article
Uncontrolled Keywords:	NIL
Subjects:	T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General) > TA703-712 Engineering geology. Rock mechanics. Soil mechanics. T Technology > TE Highway engineering. Roads and pavements > TE206-209.5 Location engineering
Divisions:	Faculty of Civil Engineering and Built Environment > Department of Civil Engineering : Infrastructure and Geomatic Engineering
Depositing User:	UiTM Student Praktikal
Date Deposited:	17 Jan 2022 01:38
Last Modified:	17 Jan 2022 01:38
URI:	http://eprints.uthm.edu.my/id/eprint/5565

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