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Utilization of marginal lands for construction in the Niger Delta

Utilisation de terrains marginaux pour la construction dans le delta du niger

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Abstract

Increased population in the cities within the Niger Delta particularly Port Harcourt, and the consequent demand for increased residential space, have forced State and Federal Governments to reclaim coastal marginal lands which comprise mainly swampy soils.

Reclamation is by hydraulic filling with fine to coarse sand. Two case histories of such reclamation are discussed in this paper. The minimum sandfill thickness required to eliminate 97% consolidation settlement of the underlying compressible soils are computed using graphs developed from Terzaghi's one—dimensional consolidation theory.

Résumé

La population croissante des grandes villes du delta du Niger et par conséquent, le grand besoin de plus d'espace pour la construction de maisons d'habitation, surtout à Port Harcourt, ont obligé les autorités de l'Etat aussi bien que les autorités fédérales à récupérer les terrains marginaux de la côte. Ces terrains comprennent des sols marcécageux.

Le défrichement en question se fait par le remplissage hydraulique avec des sables fins ou des sables grossiers. Cette étude porte sur deux emples d'une telle récupération.

L'épaisseur minimum nécessaire pour éliminer 97% du tassement de consolidation des sols sous-jacents et compressibles se calcule en se servant des courbes développées selon la théorie de consolidation à une dimension, élaborée par Terzaghi.

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References

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Authors and Affiliations

  1. School of Engineering, Rivers State Polytechnic, Bori, Nigeria

    T. K. S. Abam

  2. Department of Geology, University of Nigeria, Nsukka, Nigeria

    C. O. Okogbue

Authors
  1. T. K. S. Abam
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  2. C. O. Okogbue
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Abam, T.K.S., Okogbue, C.O. Utilization of marginal lands for construction in the Niger Delta. Bulletin of the International Association of Engineering Geology 48, 5–14 (1993). https://doi.org/10.1007/BF02594972

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  • DOI: https://doi.org/10.1007/BF02594972

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