Published on 24.10.2011
The official ceremony marking the beginning of work on the Saverne Tunnel was held on October 20.
One of the most important projects in the second phase of the LGV Est (eastern European high-speed rail line), this endeavour comprises a 4-km tunnel that will take the high-speed rail line under the narrowest part of the Vosges massif. To ensure complete safety, the two rail lines will pass through separate parallel tunnels, which will be connected every 500 metres to allow for evacuation of travellers if there is an accident or a fire.
An impressive machine will bore the two tunnels. It is 110 metres long, 10 metres in diameter, and weighs 2,200 metric tons. It will dig out 730,000 m3 of rock at an average rate of 20 metres per day.
As the prime contractor, BG has had its teams involved from the design-and-construction bid stage. Among other services, it is tracking the progress of work on the tunnel. A little more than 12 months after the contract was signed, and following an especially intense preparation and development phase, digging has begun.