Geo-assessment of subsurface conditions in Magodo brook estate, Lagos, Nigeria.
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Date
2012
Authors
Oyedele, K.F
Oladele, S
Okoh, C.N
Journal Title
Journal ISSN
Volume Title
Publisher
International journal of advanced scientific technical research
Abstract
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
Description
Keywords
Geo-materials , resistivity , Geotechnical , geophysical
Citation
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.