ENGINEERING SITE INVESTIGATION OF SOIL COMPETENCE WITHIN MOUNTAIN TOP UNIVERSITY'S PERMANENT SITE AT MAKOGI-OBA, OGUN STATE, USING GEOPHYSICAL METHODS

📄 Project Abstract

Geophysical methods have been used to investigate the competence of the near surface soil at Mountain Top University's permanent site in Makogi-Oba, via Ibafo, Lagos-Ibadan Expressway, Ogun State, Nigeria with a view to determining its suitability for construction purposes. The methods adopted include the 2D electrical resistivity tomography, 1D Vertical Electrical Sounding, 2D seismic refraction tomography and the multichannel analysis of surface wave. The 2D ERT was first conducted and this was followed by the Vertical Electrical Sounding at some selected points on the 2D ERT profiles. This was followed by the seismic refraction tomography survey before the multichannel analysis of surface waves was finally done. The 2D electrical resistivity imaging delineated between three to four layers which were the clayey top soil, a clayey sand layer, a low resistivity clay and another clayey sand layer. Maximum depth probed was 49.7 m. The Vertical Electrical Sounding delineated four geoelect...