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Author(s):	Kogler, Kurt; Hechenbichler, Johann; Gabriel, Patrick
Title:
Abstract:	Grouting measures in dam construction are of increasing importance in Europe, where many of the largest dams were constructed during the 1950s and 1970s. Nowadays, these dams often have to resist higher loads then they were originally designed for, and changes of reservoir management have increased loads on the structures in many cases. For this reason, many plant operators have decided to adapt dam structures for present-day use, to increase sustainability and guarantee serviceability. At the same time, the construction of new dams requires comprehensive planning as well as full cooperation between all areas of civil engineering and grouting technology. Grouting works are key elements of dam structures, which are usually not directly visible from the surface and therefore seldom perceived by the public. This paper gives an insight into the possibilities of grouting measures in dam construction and a brief overview of objectives of grouting measures and their assignment to components of dams as well as grouting measures for waterproofing curtains, pressure tunnels, pressure shafts, surge tanks and porous mass concrete. Injektionsmaßnahmen im Talsperrenbau gewinnen durch die erforderlich gewordene Ertüchtigung von bestehenden Anlagen wieder zunehmend an Bedeutung in Europa. Durch moderne Methoden der Speicherbewirtschaftung (Pumpspeicherwerke) und daraus resultierende hohe dynamische Lasten über die Lebensdauer der Anlagen wurde es notwendig, die in den 1950er- und 1970er-Jahren gebauten Anlagen dem aktuellen Stand der Technik anzupassen. Gleichzeitig ist beim Bau neuer Talsperren eine umfassende Planung von Injektionsmaßnahmen sowie eine Zusammenarbeit aller Bereiche der Ingenieurwissenschaften mit der Injektionstechnik notwendig. Injektionen sind dabei ein wesentlicher Bestandteil von Sperrbauwerken, die in der Regel von der Oberfläche nicht sichtbar sind und somit selten von der Öffentlichkeit wahrgenommen werden. Der Beitrag gibt Einblick über die Vielfältigkeit der Einsatzmöglichkeiten von Injektionsmaßnahmen im Talsperrenbau und behandelt hierbei die Funktionen von Injektionsmaßnahmen und deren Anlagezuordnung im Kraftwerksbau, die Injektion von Dichtschirmen, Druckstollen, Druckschächten und Sperrbauwerken aus Massenbeton.
Source:	Geomechanics and Tunnelling 12 (2019), No. 2
Page/s:	129-140
Language of Publication:	English/German

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