Advertisement

Utilization of marginal lands for construction in the Niger Delta

  • T. K. S. Abam
  • C. O. Okogbue
Article

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.

Keywords

Nigeria Niger Delta Marginal Land Standard Penetration Test Cone Penetration Test 

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

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.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. BRITISH STANDARD INSTITUTION (BSI) Code of practice for site Investigation, BS 5930, London, 1981.Google Scholar
  2. ENOCH GEORGE ASSOCIATES, 1986: Soil Investigation Report for a Housing Development Project at Borokiri, Port Harcourt, Nigeria.Google Scholar
  3. ENOCH GEORGE ASSOCIATES, 1987: Soil Investigation Report on reclaimed road at Abam Ama in Okrika, Rivers State, Nigeria.Google Scholar
  4. JONES D.B.et al., 1987: Ground treatment by surcharging on deposit of soft clay and peat. A case history. Proc. of ICE Conf. on building on marginal and derelict land, pp. 679–695.Google Scholar
  5. MITCHELL J.K., 1981: Soil Improvement, State-of-the-Art report. Proc. of 10th Inter. Conf. on Soil Mech. and Found. Eng. Stockholm. Vol. 4, pp. 509–565.Google Scholar
  6. MURTHY V.N.S., 1984: Soil Mechanics and Foundation Engineering, New Delhi.Google Scholar
  7. RUTLEDGE P.C., 1970: Utilization of marginal lands for urban development ASCE, Soil Mech. Vol. 96, No. S.M.I., pp. 2–22.Google Scholar

Copyright information

© International Association of Engineering Geology 1993

Authors and Affiliations

  • T. K. S. Abam
    • 1
  • C. O. Okogbue
    • 2
  1. 1.School of EngineeringRivers State PolytechnicBoriNigeria
  2. 2.Department of GeologyUniversity of NigeriaNsukkaNigeria

Personalised recommendations