Chapter 18

New Analytical Approach for Predicting Horizontal Displacement of Stone Columns

Kim Chan; Bosco Poon    GHD, Sydney, Australia

Abstract

This chapter presents an analytical approach for the prediction of both vertical and horizontal displacements of soft ground improved using stone columns in a two-dimensional (2D) finite element analysis (FEA). This involved simulating the stone columns as continuous strips in the FE model with appropriate strip width, spacing, and smeared properties. This approach relies on the selection of appropriate stress concentration ratios between the vertical stress supported by the stone columns and the stress within the surrounding soil.

A parametric study of the various key influencing factors on the ...

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