Building a larger (in diameter) tunnel from an existing tunnel.
Swiss RhB developed a new technic to renovate and modify existing tunnels called 'Standard Tunnel Construction". https://www.rhb.ch/pl/company/projects-dossiers/standard-tunnel-construction2,2km long tram-train cut-off tunnel in Lugano Switzerland has been approved
Swiss Federal Council on August 11 approves a 2,2 km cut-off tunnel which would provide metre-gauge operator Ferrovie Luganesi with a more direct route into Lugano. https://www.railwaygazette.com/projects-and-planning/lugano-tram-train-cut-off-tunnel-approved/59723.article200 Million Swiss Francs allocated for tunnels at Suhr near Aarau
It is a project thought about for a long time. So called `Suhr bypass` and it will better the traffic around Suhr. The tunnel is not long though. Only 800 me...Swiss company RUBI Bahntechnik's method for reducing vibrations in tunnels
"The track plate is not firmly connected to the surroundings (for example a tunnel tube or a bridge slab), but rests on an elastic layer. If a train dri...Swiss ETH Zürich team wins the Innovation Award at The Boring Company's Tunneling Competition
...be.com/watch?v=q-rUx_PMYKo Swissloop Tunneling, a multicultura...a Boring Competition'. Swissloop Tunneling was one of the...initial more than 400 teams. Swissloop Tunneling TBM bored 18 me...oundhog Alpha' bores. The Swiss team's TBM uses "3D...
cover tunnel photo by: Matt Brown from London, England / CC BY
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