Perschling tunnels Consolidation of geological rupture zones The Perschling tunnels are part of the European high speed railway trackParis - Budapest. Located in Lower Aus- tria it is part if the new railway trackVienna – St. Poelten and consists of the tunnels Reiserberg tunnel (1,307 m), Stierschweiffeld tunnel (2,857 m) and Raingruben tunnel (2,108 m). All three tunnels have been excavated with tunnel boring machines. While driving the Re

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