The logistical challenges of the long tunnel drives on contract KAT 2 / Die logistischen Herausforderungen der langen Tunnelvortriebe des Bauloses KAT 2

The largest construction lot of the Koralmtunnel project, which will be executed by the joint venture KAT 2 (Strabag - Jäger Bau), has been under construction for almost three years. The key tasks thus far were the edification of the twin shafts to a depth of 60 m, approximately 4.5 km tunnel by drill and blasting, the assembling and implementing of the two tunnel boring machines, as well as the installation of the above- and underground logistic-infrastructure. This report describes the development of the logistics concepts, the work preparation for the maximum excavation length of up to 17 km, as well as the first experiences of their implementation.