Please use this identifier to cite or link to this item: http://ir.futminna.edu.ng:8080/jspui/handle/123456789/2625
Title: Results of Subsoil Investigation on a Collapsed Building Site in Lagos, Nigeria
Authors: Oke, S. A.
Amadi, A. N.
Abalaka, A. E.
Akerele, R. T.
Keywords: Collapsed Building, Geotechnical Properties, Foundation, Site, Disturbed and Undisturbed Samples
Issue Date: Dec-2009
Publisher: Department of Building, University of Jos
Abstract: Geotechnical properties of the subsoil of a collapsed building site at Ebute-Metta, Lagos were evaluated by drilling a borehole from the ground level to a depth of 25.50m. The subsoil is heterogeneous vertically. The liquid limits vary from 27.0% to 28.5%. The plastic limits are of the order of 15.0% to 21.0%. The plasticity index ranges from 6.0% to 13.5%. The shrinkage potential is low to medium. The means of the empirical compression index, moisture content and bulk density are 0.16%, 17.62% and 1.92 kg/m3 respectively. The coefficient of volume of compressibility varies from 0.104 m2/MN to 0.156 m2/MN. The coefficient of consolidation ranges from 2.72 m2/yr to 58.40 m2/yr. The existence of stiff, silty clay layer from the surface to 10.50m depth, presence of compressible refuse materials at foundation level, unfavourable geotechnical properties and adoption of shallow foundation contributed to the collapse of the building.
URI: http://repository.futminna.edu.ng:8080/jspui/handle/123456789/2625
ISSN: ISSN 1119-0949
Appears in Collections:Geology

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