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Case Study | Grand Paris
Express France

Anchored tunnel gaskets
Grand Paris Express

When the Olympic Games arrive in Paris in 2024, there will be a significant increase in the population due to the number of sports fans and tourists visiting the city. The centennial Grand Paris Express project aims to expand and develop the Metro to meet this increased demand. This poses major challenges for all construction companies involved, as 170 km of the 200 km of new automatic Metro lines will run underground.

The challenge in this project

It is not just the length of the route, but also the very tight project timeline which presents a unique challenge here. For example, twenty drill heads are running simultaneously to complete the new tunnels in time for the Olympics.

The complexity of the project and variety of tunnel types require significant logistical work. The project needs flexible and reliable partners to guarantee a clearly defined work process.

Solution and benefits

Our broad product portfolio (including seals, source material and combination solutions) and the capacities available at SEALABLE enable the fast and successful implementation of the project in the context of these logistical challenges.

  • Streamlined process during seal installation
  • Cost savings during segment production
  • Better adhesion of the seal to the segment groove
  • Higher sealing performance by maximising water-repellent sealing surface in the ring system
  • Environmentally friendly

[...] Together, we are shaping the city of tomorrow and are already part of its history.

Eric Thalgott and Fabrice Bunouf, CEO of GEOFIT Group


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Your contact person

Gilles Mauchamp
Product Manager Tunneling

Language: ENG / FRA

+33 680 388 956
Oliver Pasemann
Research & Development Tunnelling

Language: ENG / GER

+49 152 5313 2247
Mark Fischer
Application Engineer Tunnelling

Language: ENG / GER

+49 151 1464 8844

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