Geo-assessment of subsurface conditions in Magodo brook estate, Lagos, Nigeria.
No Thumbnail Available
International journal of advanced scientific technical research
An integrated geophysical and geotechnical survey was carried out at Magodo Estate, Lagos, Nigeria. The buildings in this area are either sinking or intensively affected by severe cracks showing structural instability. The survey aimed at characterizing the shallow subsurface in order to delineate features that may cause structural instability that lead to cracking and sinking of the residential buildings. To image the subsurface, resistivity profiling (2-D), using a Wenner array and Cone Penetration Test (CPT) was carried out on five 180 m long parallel traverses. The acquired data were processed and interpreted integrally to image the shallow geotechnical setting of the site. Integrated interpretation led to the delineation of low resistivity, low bearing capacity clay which is identified as the main cause of instability that resulted in potentially dangerous cracking and sinking of residential buildings in the area
Geo-materials , resistivity , Geotechnical , geophysical
Oyedele, K. F., Oladele, S., & Okoh, C. N. (2012). Geo-assessment of subsurface conditions in Magodo brook estate, Lagos, Nigeria. International journal of advanced scientific technical research, 2(4), 733-741.