Designing reinforced soils by columns

Mounir Bouassida

In the proceedings of: GEO2011: 64th Canadian Geotechnical Conference, 14th Pan-American Conference on Soil Mechanics and Geotechnical Engineering, 5th Pan-American Conference on Teaching and Learning of Geotechnical Engineering

Session: Ground Improvement/Remediation

ABSTRACT: The design of foundations on reinforced ground by columns usually involves two verifications, first, the bearing capacity and, second, the settlement. This contribution details a comprehensive methodology for determining the optimized improved area ratio to avoid overestimated quantities of material columns. The basis of suggested methodology consists in estimating, first, a minimum improvement area ratio (IAR) complying with the allowable bearing capacity of reinforced soil; then a maximum IAR is derived from the verification of allowable settlement. A tank project is analyzed to show up that the use of novel methodology of design, which has been incorporated in recently developed software for the design of reinforced soil by columns, avoids an overestimated reinforcement.

RÉSUMÉ: Le dimensionnement ndation sur sol renforcé par colonnes inclut, en premier lieu, la vérification de la capacité portante, et, en second lieu, la vérification du tassement. Cette contribution présente une nouvelle méthode de détermination du permettaner la sur estimation de la quantité du matériau constitutif ation découlant de la vérification du tassement admissible. Un projet de réservoir est exposé pour montrer que la mise en oeuvre de la nouvelle méthodologie de dimensionnement qui a été incorporée dans le logiciel conduit à un gain sur le coût du renforcement.

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Cite this article:
Mounir Bouassida (2011) Designing reinforced soils by columns in GEO2011. Ottawa, Ontario: Canadian Geotechnical Society.

@article{GEO11Paper1041,author = Mounir Bouassida ,title = Designing reinforced soils by columns,year = 2011}