DEFORMATION ANALYSIS OF SOFT GROUND REINFORCED BY COLUMNAR INCLUSIONS

A simple theoretical approach to predict the deformation behaviour of uniformly loaded soft ground reinforced by columnar inclusions is presented. The approach incorporates the free strain condition, the distribution of shear stresses and the load sharing between column and soil. A simple deformation mode of the column-soil system is assumed and the compatibility of the displacements between the column and the soil is considered. Results are presented for a uniformly loaded, column-reinforced ground for various cases by changing the values of spacing of the column, modular ratio and Poisson's ratio of the soil. The predictions show that the effects of spacing and modular ratios on the distribution of the shear stresses, the load sharing between the column and the soil and the settlements of the ground are significant. However, the Poisson's ratio of the soil has little influence. In order to illustrate the accuracy and usefulness of the proposed method, the results from the proposed method and the finite element analysis have been compared. It is found that the predicted settlement profiles, the shear stress distributions and load sharings are very similar in magnitude and pattern for the two techniques.

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  • Corporate Authors:

    Elsevier

    The Boulevard, Langford Lane
    Kidlington, Oxford  United Kingdom  OX5 1GB
  • Authors:
    • ALAMGIR, M
    • Miura, N
    • POOROOSHASB, H B
    • MADHAU, M R
  • Publication Date: 1996

Language

  • English

Media Info

  • Features: References;
  • Pagination: p. 267-90
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00726628
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: Oct 28 1996 12:00AM