Tag: Eisenbahn

  • Pioneering civil engineering

    Pioneering civil engineering

    With a total length of 266 metres, the bridge replaces an outdated structure from 1926 that no longer met the requirements of modern rail traffic. The central component is a gleaming white network arch with a span of 130 metres, which spans the border river Oder without supports. Instead of classic flat steel cables, 88 carbon tension members made of carbon fibre-reinforced plastic are used. These hangers were largely developed, tested and assessed at the Empa Institute in Dübendorf. They replace the steel segments weighing several tonnes and thus significantly reduce the overall weight of the supporting structure. An advantage for material efficiency and design freedom.

    Economic and sustainable benefits
    The innovative bridge technology made it possible to save around 600 tonnes of steel and 1,350 tonnes of reinforced concrete. A project-specific scaffolding solution was used in the construction process to ensure efficient assembly and welding of the bridge segments. Thanks to the high fatigue, tensile and corrosion resistance of the carbon fibre cables, both the maintenance effort and the service life of the bridge are positively influenced. A sustainability study shows that the use of carbon causes around 20 per cent less CO₂ emissions than a conventional steel structure.

    International appeal and future potential
    The railway bridge can be used by freight and passenger trains at speeds of up to 120 km/h and fulfils the highest safety standards. Extensive tests by Empa confirmed the fatigue strength of the material under real loads. The bridge has received several awards, including the Bridges International Award and the German Bridge Construction Prize. It is regarded as a pioneer for the use of high-performance composite materials in infrastructure construction.

    New aesthetics and symbolic significance
    The striking, elegant arch creates an architectural accent in the border region and emphasises the connection between the countries. The network arch bridge with carbon hangers symbolises both technical innovation and ecological responsibility. In future, it could serve as a standard for comparable major projects in European rail transport.

  • Ceneri Base Tunnel receives the green light

    Ceneri Base Tunnel receives the green light

    The New Railway-Alpen-Transversale ( NEAT ) is largely completed. The Federal Office of Transport ( FOT ) has issued the permit for the scheduled operation of the Ceneri base tunnel, it writes in a message . This means that the tunnel will be available for scheduled passenger and freight trains from the timetable change on December 13th.

    The Ceneri Base Tunnel was inaugurated on September 4th. Since then, around 5,800 commercial passenger and freight trains have been run through the tunnel in a trial run.

    The 15 kilometer long tunnel is the third of the three large base tunnels that were built as part of the NEAT. It also enables direct connections between Lugano and Locarno. These form a central element of the Ticino S-Bahn.

    The Lötschberg Base Tunnel with a length of 35 kilometers was the first of the three large tunnels to go into operation in 2007, the Gotthard Base Tunnel with a length of 57 kilometers followed in 2016. The almost 20 kilometers long Simplon Tunnel has been in operation since 1906. Switzerland now has two flat rail routes through the Alps.