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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Babol Noshirvani University of Technology
2011-01-01
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Series: | Iranica Journal of Energy and Environment |
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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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institution | Directory Open Access Journal |
issn | 2079-2115 2079-2123 |
language | English |
last_indexed | 2024-04-24T15:36:31Z |
publishDate | 2011-01-01 |
publisher | Babol Noshirvani University of Technology |
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series | Iranica Journal of Energy and Environment |
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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