Geotechnical Properties of Soils as Influenced by Land Use in a Humid Environment

We investigated some geotechnical properties of soils of Port Harcourt in 2009 under three land use types, namely mechanically cleared land, on-going building constructions and fallow land. A combination of target and random soil survey techniques guided field studies. Five soil samples were collect...

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Main Authors: C.M. Idigbor, S.U. Onwudike, C.S. Elemike, C. Ehumadu, E.U. Onweremadu, B.U. Dike
Format: Article
Language:English
Published: Babol Noshirvani University of Technology 2011-01-01
Series:Iranica Journal of Energy and Environment
Subjects:
Online Access:http://idosi.org/ijee/2(2)11/3.pdf
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author C.M. Idigbor
S.U. Onwudike,
C.S. Elemike,
C. Ehumadu,
E.U. Onweremadu,
B.U. Dike
author_facet C.M. Idigbor
S.U. Onwudike,
C.S. Elemike,
C. Ehumadu,
E.U. Onweremadu,
B.U. Dike
author_sort C.M. Idigbor
collection DOAJ
description We investigated some geotechnical properties of soils of Port Harcourt in 2009 under three land use types, namely mechanically cleared land, on-going building constructions and fallow land. A combination of target and random soil survey techniques guided field studies. Five soil samples were collected in each land use, giving a total of 15 soil samples which were air-dried and sieved. These soil samples were subjected to routine laboratory analysis and resulting data were analyzed statistically using means and correlation analysis. Soils were sandy, of slight to neutral acidity (pH = 5.9-7.6). Disturbed soils were older (silt-clay ratio= 0.13- water 0.50) when compared with fallow having a mean value of 2.1. Plasticity index values were low (< 35%) and differed due to the land use: 11.63% (building site), 12.29% (mechanically cleared land) and 14.57% (fallow). There was low colloidal activity: 0.36 (building site), 0.40 (fallow) and 0.41 (mechanically cleared land). Highest recorded maximum dry density was found in building site (2.03 Mg mG3), while 24.87% optimum moisture content was obtained in fallow soils. Plasticity index showed good relationships with moisture, clay and colloidal activity in the study sites.
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spelling doaj.art-a097254bac8b447a83c70289ccad7dd72024-04-02T01:53:40ZengBabol Noshirvani University of TechnologyIranica Journal of Energy and Environment2079-21152079-21232011-01-0122122127Geotechnical Properties of Soils as Influenced by Land Use in a Humid EnvironmentC.M. IdigborS.U. Onwudike,C.S. Elemike,C. Ehumadu,E.U. Onweremadu,B.U. DikeWe investigated some geotechnical properties of soils of Port Harcourt in 2009 under three land use types, namely mechanically cleared land, on-going building constructions and fallow land. A combination of target and random soil survey techniques guided field studies. Five soil samples were collected in each land use, giving a total of 15 soil samples which were air-dried and sieved. These soil samples were subjected to routine laboratory analysis and resulting data were analyzed statistically using means and correlation analysis. Soils were sandy, of slight to neutral acidity (pH = 5.9-7.6). Disturbed soils were older (silt-clay ratio= 0.13- water 0.50) when compared with fallow having a mean value of 2.1. Plasticity index values were low (< 35%) and differed due to the land use: 11.63% (building site), 12.29% (mechanically cleared land) and 14.57% (fallow). There was low colloidal activity: 0.36 (building site), 0.40 (fallow) and 0.41 (mechanically cleared land). Highest recorded maximum dry density was found in building site (2.03 Mg mG3), while 24.87% optimum moisture content was obtained in fallow soils. Plasticity index showed good relationships with moisture, clay and colloidal activity in the study sites.http://idosi.org/ijee/2(2)11/3.pdfAtterberg limitsClay activityLand useTropics
spellingShingle C.M. Idigbor
S.U. Onwudike,
C.S. Elemike,
C. Ehumadu,
E.U. Onweremadu,
B.U. Dike
Geotechnical Properties of Soils as Influenced by Land Use in a Humid Environment
Iranica Journal of Energy and Environment
Atterberg limits
Clay activity
Land use
Tropics
title Geotechnical Properties of Soils as Influenced by Land Use in a Humid Environment
title_full Geotechnical Properties of Soils as Influenced by Land Use in a Humid Environment
title_fullStr Geotechnical Properties of Soils as Influenced by Land Use in a Humid Environment
title_full_unstemmed Geotechnical Properties of Soils as Influenced by Land Use in a Humid Environment
title_short Geotechnical Properties of Soils as Influenced by Land Use in a Humid Environment
title_sort geotechnical properties of soils as influenced by land use in a humid environment
topic Atterberg limits
Clay activity
Land use
Tropics
url http://idosi.org/ijee/2(2)11/3.pdf
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AT cselemike geotechnicalpropertiesofsoilsasinfluencedbylanduseinahumidenvironment
AT cehumadu geotechnicalpropertiesofsoilsasinfluencedbylanduseinahumidenvironment
AT euonweremadu geotechnicalpropertiesofsoilsasinfluencedbylanduseinahumidenvironment
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