A reinforced soil slope built using marginal fill soil and an innovative geocomposite reinforcement geogrid in Southern Ontario

Michael J. Simons, Norman Cameron

In the proceedings of: GeoManitoba 2012: 65th Canadian Geotechnical Conference

Session: T1D - Retaining Walls / MSE Walls

ABSTRACT: The use of clayey and silty soils (marginal fill soils) in reinforced soil slopes and walls is usually avoided due to the low shear strength of these soils and the build up of excessive pore pressures within the reinforced soil mass during compaction operations. An innovative geocomposite reinforcement grid has been developed that combines reinforcement and drainage characteristics into a single geogrid that allows for marginal fill soils to be used in a reinforced soil slope application. Significant cost savings were realized by using readily available marginal fill soil for the construction of an earth embankment in Southern Ontario. This paper will discuss the first use in Canada of this innovative geocomposite.

RÉSUMÉ: L'utilisation de sols argileux et limoneux (terre de remblaiement marginale) dans les talus de sol et les murs renforcés est généralement évitée en raison de la faible résistance au cisaillement de ces sols et de l'accumulation de pressions interstitielles excessives dans la masse de sol renforcée pendant les opérations de compactage. Une grille géocomposite de renforcement innovante a été développée, qui combine les caractéristiques de renforcement et de drainage dans une géogrille unique qude talus de sol renforcé. D'importantes économies ont été réalisées en utilisant de la terre de remblaiement marginale facilement disponible pour la construction d'un remblai de terre dans le sud de l'Ontario. Ce document traite de la première utilisation au Canada de ce géocomposite innovant.

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Cite this article:
Michael J. Simons; Norman Cameron (2012) A reinforced soil slope built using marginal fill soil and an innovative geocomposite reinforcement geogrid in Southern Ontario in GEO2012. Ottawa, Ontario: Canadian Geotechnical Society.

@article{Paper371,author = Michael J. Simons; Norman Cameron,title = A reinforced soil slope built using marginal fill soil and an innovative geocomposite reinforcement geogrid in Southern Ontario,year = 2012}