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Author(s):	Moritz, Bernd; Pilgerstorfer, Thomas; Pointner, Peter
Title:	Koralm Tunnel contract KAT3 - System behaviour in a geotechnically challenging environment / Koralmtunnel Baulos KAT3 - Systemverhalten in einem geomechanisch herausfordernden Umfeld
Abstract:	The present paper describes interesting geomechanical aspects from the conventional excavation on the Koralm Tunnel construction contract KAT3 under various conditions. The system behaviour and support concept are discussed and highlighted, both for the shallow tunnels in the vicinity of the western portal, situated in Neogene sediments with faults and those for sections in crystalline hard rock with the highest overburden of 1,200 m. Der vorliegende Beitrag zeigt interessante geomechanische Aspekte aus dem konventionellen Vortrieb am Baulos Koralmtunnel 3 (KAT3) bei unterschiedlichen Randbedingungen. Dabei werden das Systemverhalten und das Ausbaukonzept sowohl in der seichtliegenden Anfangsstrecke beim Westportal in neogenen Sedimenten mit eingeschalteten Störungen als auch in den kristallinen Festgesteinen mit der höchsten Überlagerung von rund 1.200 m anhand von Fallbeispielen beleuchtet.
Source:	Geomechanics and Tunnelling 10 (2017), No. 5
Page/s:	447-457
Language of Publication:	English/German

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