EFFECTIVENESS OF GEOPHYSICAL ASSESSMENT OF BOREHOLES DRILLED IN BASEMENT COMPLEX TERRAIN AT AFE BABALOLA UNIVERSITY, USING ELECTROMAGNETIC (E.M.) METHOD

Authors

  • SO Oyegoke DEPARTMENT OF CIVIL ENGINEERING, AFE BABALOLA UNIVERSITY ADO EKITI, EKITI STATE, NIGERIA
  • OO Ayeni DEPARTMENT OF CIVIL ENGINEERING, AFE BABALOLA UNIVERSITY ADO EKITI, EKITI STATE, NIGERIA
  • KO Olowe DEPARTMENT OF CIVIL ENGINEERING, AFE BABALOLA UNIVERSITY ADO EKITI, EKITI STATE, NIGERIA
  • AS Adebanjo DEPARTMENT OF CIVIL ENGINEERING, AFE BABALOLA UNIVERSITY ADO EKITI, EKITI STATE, NIGERIA
  • OO Fayomi DEPARTMENT OF CIVIL ENGINEERING, AFE BABALOLA UNIVERSITY ADO EKITI, EKITI STATE, NIGERIA

Keywords:

Electromagnetic, Vertical electrical Sounding, transverse, Groundwater.

Abstract

In this research, an Electromagnetic (E.M) method of groundwater investigations was used as an on-spot assessment tool to test the integrity of the developed borehole in Afe Babalola University, Ado-Ekiti. Some randomly selected functional and abandoned boreholes developed by the Vertical Electrical Sounding (VES) methods were chosen for this study, with the aim to know the potential of the boreholes. Four transverses were established across the institution consisting of two functional and two abandoned boreholes selected from the existing forty boreholes. These were subjected to E.M method of groundwater investigation using a PQWT S500 series machines. The results obtained from this study produced curve graphs and subsurface profile maps of each transverse location. It was observed that boreholes TR 1 and TR 3, were accurately sited on vertical fractures and weathered formations while TR 2 and TR 4 were wrongly sited at the locations of poor groundwater yielding zone.

 

http://dx.doi.org/10.4314/njt.v39i1.4

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Published

2020-01-03

Issue

Vol. 39 No. 1 (2020): NIGERIAN JOURNAL OF TECHNOLOGY, VOL. 39, NO. 1, JANUARY 2020

Section

Building, Civil & Geotechnical Engineering

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How to Cite

EFFECTIVENESS OF GEOPHYSICAL ASSESSMENT OF BOREHOLES DRILLED IN BASEMENT COMPLEX TERRAIN AT AFE BABALOLA UNIVERSITY, USING ELECTROMAGNETIC (E.M.) METHOD. (2020). Nigerian Journal of Technology, 39(1), 36-41. https://nijotech.com/index.php/nijotech/article/view/2214