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The Brenner Eisenbahn GmbH (BEG) was appointed in 1995 to design and construct the new railway line in the Lower Inn Valley between the national border near Kufstein and Innsbruck. In the densely populated Inn Valley, large parts of the line with a planned speed of 250 km/h had to be run through tunnels. Near Jenbach, a semi‐quantitative process was used as part of a risk analysis for the decision...
With a length of 32.9 km, the Koralm tunnel is the key structure on the route of the new 130 km Koralm railway between Graz and Klagenfurt (Austria). This paper defines the most important boundary conditions for dividing the sections and for selecting the methods of tunnelling (sequential or continuous). The focus of the article is mainly on section KAT 3, in which both tertiary sediments and crystalline...
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