Deep Foundations
As part of the extension of Highway 70, between Chemin de la Grande-Anse and La Baie, Forage CBF was mandated for the construction of the north and south overpasses.
Client
Construction J & R Savard Ltd
Expertise(s)
Caisson Piles
Bored piles
Anchoring Systems
Rock Anchors
Location
Saguenay
Year
2022
Raise your expertise to the level of expert consultant
48" caissons
16
Total length of 16 in. diameter bored piles
5700
Total length of 20 in diameter bored piles
3300
Combine strategic vision and technical mastery on each project
These infrastructures will allow the extension of the highway over the Roberval-Saguenay Railway Company's railway line, thus ensuring better transport fluidity and sustainable infrastructure.
A job done according to the rules of the art
To ensure the stability of these structures, we installed 16 48-inch diameter caisson piles, with a drilling depth varying between 10 m and 45 m and a 2.5-inch rock socket. In addition, 96 20-inch bored piles were installed, with lengths ranging from 10 m to 40 m. In addition, 228 16-inch bored piles were embedded in the rock, with depths varying between 10 m and 40 m. To further enhance stability, 8 rock anchors were installed inside the 48-inch caisson piles, incorporating two 65 mm anchor bars per borehole, with a borehole of 8 m below the bottom of the caisson piles.
