Journal ArticleDOI
Impact of hydrology on the Port-Harcourt-Patani-Warri road
TLDR
In this article, the authors explored the impact of hydrology on the Port-Harcourt-Patani-Warri road and attributed the poor performance of the road to: 1) the southeast-northwest orientation, in which the road acts like a dam; 2) inferior construction aggregate composition; 3) changes in pavement condition due to interaction of local road aggregates with water.Abstract:
The paper explores the impact of hydrology on the Port-Harcourt–Patani-Warri Road. It reviews the hydrometeorological, drainage and terrain peculiarities of the area against the backdrop of the design, alignment and performance of the road. The paper ascribes the poor performance of the road to: 1. The southeast-northwest orientation of the road in a region with predominately northeast-southwest surface and subsurface flow, in which the road acts like a dam; 2. The inferior construction aggregate composition; 3. Changes in pavement condition due to interaction of local road aggregates with water.read more
Citations
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Unjust waters: climate change, flooding and the urban poor in Africa
TL;DR: ActionAid conducted participatory vulnerability analysis in five African cities to explore local people's perceptions of why floods occur, how they adjust to them, who is responsible for reducing the flood risk and what action the community itself can take as discussed by the authors.
Towards pro-poor adaptation to climate change in the urban centers of low- and middle-income countries,'
TL;DR: In this article, the authors propose a solution to solve the problem of the problem: this article ] of unstructured data, which is also known as unstructuring data.
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Engineering properties of residual soils in part of Southwestern Nigeria: implication for road foundation
TL;DR: A geotechnical investigation of subsoils along Isinbode-Ara road, stretching in southeastern to northwestern direction of 7 km distance within Ekiti State, Southwestern Nigeria, was carried out as discussed by the authors.
References
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Journal ArticleDOI
Outline of Geology of Niger Delta
K. C. Short,A. J. Stauble +1 more
TL;DR: In this paper, a new threefold lithostratigraphic subdivision for the Niger delta subsurface is introduced, comprising an upper sandy Benin Formation, an intervening unit of alternating sandstone and shale named the Agbada Formation, and a lower shaly Akata Formation.
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Late Quaternary Niger Delta, and Adjacent Areas: Sedimentary Environments and Lithofacies
TL;DR: The Late Quaternary Niger delta as mentioned in this paper is a large, arcuate "classical" delta associated with marginal estuary and barrier island-lagoon complexes, where sediment originating in a vast and geologically complex hinterland is dispersed through the delta by river, tidal, wave, and ocean currents.
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The engineering-geological characteristics and classification of the major superficial soils of the Niger Delta
TL;DR: A study of the engineering geological properties, distribution and classification of the major superficial soils of the Niger Delta was carried out as part of a study programme to provide the much needed information and data for the infrastructural development of the region as discussed by the authors.
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The geotechnical properties of lateritic and non-lateritic soils of southeastern Nigeria and their evaluation for road construction
TL;DR: In this paper, field compaction results revealed that the relative compaction of 95-100% can be easily achieved in the field using 10-12 ton vibratory rollers.
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A climatic index of weathering and its application in road construction
TL;DR: In this article, the authors defined the conditions which lead either to the predominance of disintegration, due to physical weathering, or to decomposition, because of chemical weathering.