How will the tunnel be built?

The tunnel will be built using the "traditional method", i.e. with the help of mechanical excavators and specific tools adapted to the drilling of the rock. The project does not require the use of a tunnel boring machine.

Throughout the excavation, the unstable blocks of earth and rock will be secured in order to avoid any further risks. Support will be put in place as the tunnel progresses, in order to form a protective structure around the tunnel and to guarantee the stability of the surrounding ground. All of this work will be carried out exclusively underground and will not be visible from the surface.

For more information, find the methodologies of civil engineering works thanks to the video dedicated to civil engineering works.