Line 16-1 Paris Metro, France

Project type:

• Subway tunnel 

Application: 

• Precast segments 

Partners: 

• Owner: Société du Grand Paris (SGP)
• Designer: Egis
• Contractor: Eiffage Génie Civil
• Precast plant: Bonna Sabla

The challenge

The diameter of the tunnel measures at 8.7 m (28 ft) on the inside and at 9.5 m (31 ft) on the outside. Because of the size and urban location of the project, time was of the essence. Precaster Bonna Sabla offers its customers optimum quality and productivity. Using Dramix® steel fiber reinforcement for the precast segments enabled them to provide the quality at the speed they value. 

The solution

The concrete segments uses C540/50 concrete reinforced with 40 kg/m3 of Dramix® 3D steel fibers. The entire project contains up to 5.200 ton of Dramix® steel fibers, making it one of Bekaert’s biggest projects in Paris.