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Author(s):	Gamper, C.; Theurl, M.
Title:	Tunnelling in Hungary - The M6 chain of tunnels / Tunnelbau in Ungarn - Tunnelkette M6
Abstract:	In Hungary, a motorway network is being built in a star shape starting in Budapest. The M6 motorway runs southward from Budapest towards Croatia and will also link the city of Pécs, the European Capital of Culture for 2010 to the network. A consortium consisting of the firms Strabag, Colas, John Laing and Intertoll were awarded a contract in autumn 2007 to design, build and operate a section with a length of 48 km. An important part of the works is the construction of the M6 tunnel chain consisting of four twin-bore, two-lane motorway tunnels. These tunnels were built by Strabag. During the driving of the longest tunnel, a collapse occurred in summer 2008, in which both tunnel bores caved in over a length of 200 m. The lecture reports on the driving of the tunnel through the collapsed area and the construction of the subsequent inner lining works, which made it possible to maintain the opening date. In Ungarn wird ein Autobahnnetz sternförmig von Budapest aus errichtet. Die Autobahn M6 verläuft von Budapest Richtung Süden, somit Richtung Kroatien. Zusätzlich wird die Stadt Pecs, Kulturhauptstadt Europas 2010, an das Autobahnnetz angeschlossen. Ein Konsortium, bestehend aus den Firmen Strabag, Colas, John Laing und Intertoll, haben im Herbst 2007 den Auftrag erhalten, einen Abschnitt dieser Autobahn mit einer Länge von 48 km zu planen, zu errichten und zu betreiben. Ein wesentliches Teilstück dieses Auftrags ist Errichtung der Tunnelkette M6, bestehend aus vier zweiröhrigen zweispurigen Autobahntunneln. Diese Tunnel wurden von der Firma Strabag errichtet. Beim Vortrieb des längsten Tunnels kam es im Sommer 2008 zu einem Verbruch, bei dem beide Tunnelröhren auf einer Länge von 200 m einstürzten. Der Vortrag berichtet über die Auffahrung des Verbruchs und die Durchführung der folgenden Innenschalenarbeiten, die es ermöglichten, den Eröffnungstermin einzuhalten.
Source:	Geomechanics and Tunnelling 3 (2010), No. 6
Page/s:	711-718
Language of Publication:	English/German

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