Application of radial electrical resistivity profile array for mapping deep vertical fractures in a proposed engineering construction site within the University of Ibadan Campus, Southwestern Nigeria

Journal Title: Geology, Geophysics & Environment - Year 2018, Vol 44, Issue 3

Abstract

In this study we demonstrate the efficacy of radial electrical resistivity profile array in delineating deep narrow linear fracture that could constitute weakness in the subsurface, thus hindering foundation material in providing necessary support to proposed engineering construction, in the southeastern part of the University of Ibadan Campus, southwestern Nigeria, where nearby buildings show stress induced failure traceable to defect in foundation upon which the buildings were founded. Six electrical resistivity profile arrays were occupied at 0°/180°, 307210°, 607240°, 907270, 1207300° and 1507330° orientations to complete a clockwise 360° sweep at 30° interval. The radial profile array enabled subsurface features to be intersected at relatively high angle, thus making measurement of linear features of limited lateral extent feasible irrespective of their orientations. Low resistivity distribution which decreases in value with depth (300-8 Om) characterizes the northern part of the study area while relatively higher value that increases with depth (420-4150 Om) dominates the south. The occurrence of a narrow strip of low resistivity zone (8-170 Om) at 20 m, which gains prominence with depth, dividing relatively resistive zone in the southern part of the study area indicate the presence of a deep vertical fracture whose detection is essential to guide further foundation geotechnical studies as well as aid the design of appropriate foundation that would support the proposed engineering structure.

Authors and Affiliations

Olawale Olakunle Osinowo, Michael Oluseyi Falufosi

Keywords

Related Articles

Rynek pojemności magazynowych na ropę naftową i paliwa ciekłe w Polsce - perspektywy rozwoju

The year 2012 was the first year in the past 12 years when the demand for liquid fuels dropped. That resulted in a decrease of demand for mandatory reserve storage capacity. A rapid growth of the demand for crude oil and...

Department of Geophysics

Department of Geophysics

Preliminary results from sculpture analysis of the apiculate miospores from the Upper Visean of Kaluga region, Russia

Palynological material for the present study is well preserved apiculate miospores collected from palynoassemblage MS-6 of Mstikhino quarry, Kaluga Region. The unique palynoassemblage MS-6 has been extensively studied by...

Application of pattern recognition methods to automatic identification of microscopic images of rocks registered under different polarization and lighting conditions

The paper presents the results of the automatic classification of rock images, taken under an optical microscope under different lighting conditions and with different polarization angles. The classification was conducte...

Hydrogeological problems of the Křtinský valley in the Moravian carst

The Výpustek cave is located in the middle part of the Moravian Karst, which is the most known, largest and most karsted area in the Czech Reublic. Hydrogeology of the area is very interesting, surrounding terrain has gr...

Download PDF file
  • EP ID EP388470
  • DOI 10.7494/geol.2018.44.3.329
  • Views 61
  • Downloads 0

How To Cite

Olawale Olakunle Osinowo, Michael Oluseyi Falufosi (2018). Application of radial electrical resistivity profile array for mapping deep vertical fractures in a proposed engineering construction site within the University of Ibadan Campus, Southwestern Nigeria. Geology, Geophysics & Environment, 44(3), 329-338. https://europub.co.uk/articles/-A-388470