Evaluating the performance of jet grouting for reinforcement of port structure

Roberto Cruxen Daemon d'Oliveira, Maria Esther Soares Marques, José Renato Moreira da Silva de Oliveira

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: In order to assess the performance of jet grouting for reinforcement of port structure, a pile sheet pier with two levels of anchorage and initial water depth of 8m was modeled when submitted to dredging up to 6m deep and increments of the backyard load up to 60kPa. The stability of the structure with and without reinforcement was analyzed by limit equilibrium and finite element computational methods. The site of study is the region of Navegantes port, South Brazil, which consists of thick layers of fluvio-marine soft clay deposits, and represents the situation found in many port areas of the country.

RÉSUMÉ: Afin d'évaluer la performance du jet grouting pour le renforcement de la structure port, un quai de planches à deux niveaux d'ancrage et avec une profondeur initiale de l'eau de 8m a été modélisé lorsqu'il est soumis à l'approfondissement jusqu'à 6m et les augmentations de la charge à l'arrière jusqu'à à 60 kPa. La stabilité de la structure avec et sans renforcement a été analysé par équilibre limite et des méthodes de calcul par éléments finis. Le site d'étude est la région du port de Navegantes, sud du Brésil, qui se compose par d'épaisses couches dês argiles mous fluvio-marines, et qui représente la situation typique des zones portuaires du pays.

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