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Author(s):	Gerstner, Reinhold; Netzer, Elmar; Vigl, Alois
Title:	Long-term behaviour of pressure tunnels / Langzeitverhalten von Druckstollen
Abstract:	The pressure tunnels of Alpine hydropower stations have been designed for a long lifetime and often give good service for long periods, making no further measures necessary except for regular maintenance. But in some pressure tunnels, damage to the lining has been discovered after some decades of use and this leads to repair works of varying extent. The article gives an overview of the damage patterns and the repairs, with serveral examples. Die Druckstollen alpiner Wasserkraftwerke sind für eine lange Lebensdauer konzipiert und stehen in vielen Fällen über einen langen Zeitraum klaglos in Betrieb, sodass neben der regulären Instandhaltung keine weiteren Maßnahmen erforderlich sind. Bei manchen Druckstollen ist nach einer Nutzungsdauer von mehreren Jahrzehnten die Entwicklung von Schäden an der Auskleidung festzustellen, die zu Sanierungen unterschiedlichen Umfangs führen. Der Beitrag gibt einen Überblick über die Schadensbilder und die Sanierungen, wofür mehrere Beispiele angeführt werden.
Source:	Geomechanics and Tunnelling 6 (2013), No. 5
Page/s:	407-421
Language of Publication:	English/German

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