Bearing capacity of a foundation resting on a soil improved by a group of columns

Abstract : A new design method for a foundation on a soil reinforced by columns is described. A lower bound of the bearing capacity is determined within the framework of the yield design theory. It takes into account the three-dimensional nature of the problem and is applicable to a wide range of geometries. A parametric study on the improvement of the bearing capacity as a function of the proportion of reinforcement, and on the strength characteristics, is presented. A complete analytical solution is given for the strength of a composite cell subjected to a triaxial loading, which provides an insight into the reinforcement mechanism.
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M. Bouassida, P. de Buhan, L. Dormieux. Bearing capacity of a foundation resting on a soil improved by a group of columns. Géotechnique, Thomas Telford, 1996, 46, pp.570-572. ⟨10.1680/geot.1995.45.1.25⟩. ⟨hal-00111511⟩

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