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Geneva rail project progresses following completion of geotechnical work

Tunnelling work on the new Ceva railway line between Switzerland and France is progressing following completion of a major phase of geotechnical work.

Bauer Spezialtiefbau Schweiz has recently completed the second part of work on the scheme almost three years after it first started work on the project.

The route to link Cornavin, Eaux-Vives and Annemasse is mostly below ground with several bored tunnels and cut and cover tunnels.

Construction of the 16.1km rail line began in 2011, which is almost 100 years after the new route was first proposed.

Bauer’s first phase of work involved installed of bored piles and diaphragm walls for shafts up to 25m deep and retaining walls. The company started work on the project near the tunnel site in Bachet in 2012 and this phase took six months to complete.

The most recently completed phase undertaken by Bauer was for the cut and cover tunnel at Foron, which is more than 1km in length. Over 15 months, Bauer constructed more than 24,500m2 of diaphragm wall.

The full completion and commissioning of the new railway line, with its five new stations, is scheduled for 2019.

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