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Title:	How Asfinag decides construction methods / Baumethodenentscheidung bei der Asfinag
Abstract:	The history of autobahn tunnel construction in Austria is about 45 years young, and currently 140 tunnels with a total length of 300 km provide short, safe and environmentally friendly routes for traffic all year round. A further 100 km of tunnel are being designed or are under construction. The present article gives a review of milestones in the history of autobahn tunnel construction and analyses the special features of road tunnels with regard to the method of tunnelling. More detailed descriptions are given of the TBM project A14, 2nd bore of the Pfänder Tunnel and the S1 Danube-Lobau crossing project currently being designed, including the considerations leading to the selection of tunnelling method in each case. Die Geschichte des Autobahntunnelbaus in Österreich ist rund 45 Jahre jung. 140 Tunnel mit einer Gesamtlänge von 300 km sorgen ganzjährig für kurze, sichere und umweltfreundliche Transportwege. Weitere 100 km Tunnel sind derzeit in Planung bzw. Bau. Der vorliegende Beitrag gibt einen geschichtlichen Rückblick auf Meilensteine im Autobahntunnelbau und analysiert die Besonderheiten von Straßentunneln im Hinblick auf die Vortriebsmethoden. Auf das bereits umgesetzte TVM-Projekt A14, 2. Röhre Pfändertunnel und das Planungsprojekt S1 Donau-Lobau-Querung mit den entsprechenden Baumethodenüberlegungen wird näher eingegangen.
Source:	Geomechanics and Tunnelling 4 (2011), No. 4
Page/s:	317-326
Language of Publication:	English/German

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