Volume 12, Issue 1 And B (Transaction B: Geotechnical Engineering, January 2014)
IJCE 2014, 12(1 And B): 15-25 |
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Nazari Afshar J, Ghazavi M. A simple analytical method for calculation of bearing capacity of stone-column. IJCE 2014; 12 (1) :15-25
URL: http://ijce.iust.ac.ir/article-1-672-en.html
URL: http://ijce.iust.ac.ir/article-1-672-en.html
Abstract: (22029 Views)
The Stone-column is a useful method for increasing the bearing capacity and reducing settlement of foundation soil. The prediction of accurate ultimate bearing capacity of stone columns is very important in soil improvement techniques. Bulging failure mechanism usually controls the failure mechanism. In this paper, an imaginary retaining wall is used such that it stretches vertically from the stone column edge. A simple analytical method is introduced for estimation of the ultimate bearing capacity of the stone column using Coulomb lateral earth pressure theory. Presented method needs conventional Mohr-coloumb shear strength parameters of the stone column material and the native soil for estimation the ultimate bearing capacity of stone column. The validity of the developed method has been verified using finite element method and test data. Parametric studies have been carried out and effects of contributing parameters such as stone column diameter, column spacing, and the internal friction angle of the stone column material on the ultimate bearing capacity have been investigated.
Type of Study: Research Paper |
Subject:
Geotechnique
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