Issue |
Rev. Fr. Geotech.
Number 87, 1999
|
|
---|---|---|
Page(s) | 27 - 33 | |
DOI | https://doi.org/10.1051/geotech/1999087027 | |
Published online | 09 October 2017 |
Les pieux maritimes du pont Vasco da Gama
Maritime piles of Vasco da Gama bridge
NOVAPONTE, Carnpenon Bernard SGE 5, cours Ferdinand-de-Lesseps 92851 Rueil-Malmaison Cedex, France.
Les pieux maritimes du pont Vasco da Gama constituaient un de ses enjeux techniques principaux pour le groupement d’entreprises NOVAPONTE (piloté par Campenon Bernard SGE), qui avait pris à son compte les aléas de fondations. Quelques chiffres en témoignent :
– 8 km d’estuaire à franchir, soumis à l’action de la marée ;
– 860 pieux de 1,70 à 2,20 m de diamètre pour des capacités portantes supérieures à 3 000 t sous séisme, fondés jusqu’à – 85 m sous le niveau moyen du fleuve ;
– des cadences de production moyennes de deux pieux battus et un pieu foré par jour.
Abstract
Construction of maritime piles of Vasco da Gama bridge were one of its main technical challenges for the joint venture NOVAPONTE (led by Campenon Bernard SGE). which was carrying the foundation risks. Some figures are self explanatory :
– 8 km of estuary to be crossed, under tide effects ;
– 860 piles, from 1.70 to 2,20 m diameter, with a bearing capacity of more than 3 0001 under earthquake, founded until – 85 m under water level ;
– average rates of construction of two driven piles and one bored pile per day.
© CFMS-CFGI-CFMR-CFG 1999
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