Austria

Lainzer Tunnel: Inner Shell made of fire-
resistant, watertight self-compacting Concrete

The 12.8 km long Lainzer Tunnel represents the core section of the connecting route between the West, South and Danube railway in Vienna. The tunnel section starts at Vienna-Hadersdorf Station on the West route. An underground link to the new high-performance line leading to St. Pölten is also being produced there. The tunnel section runs through the west of Vienna beneath the Lainzer Tiergarten in Speising close to the existing link and joins up with the South railway route at Vienna-Meidling Station and with the Danube line at Altmannsdorf.

The 2-track tunnel bore with 12 safety exits was...

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