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Author(s):	Tauer, Andreas; Posch, Helmut; Kager, Matthias; Schubel, Dietmar
Title:	Recycling or landfill - Experience based on the example of Koralm Tunnel, contract KAT2 from design to construction / Verwertung oder Deponierung - Die Erfahrungen am Beispiel Koralmtunnel, Baulos KAT2 von der Planung bis zur Umsetzung
Abstract:	The construction of the approx. 33 km long, twin-bore Koralm Tunnel will produce about 5 million m3 of tunnel spoil. For this reason, a maximum degree of recycling of the material and landfill within the area of the three construction contracts were already intended at the start of design work. This had to consider optimal cost-effectiveness of the entire materials management with minimal environmental impact through the minimising of transport journeys and areas exploited as well as the saving resources as far as possible. Specifically for the design of contract KAT2, the production and demand of material had to be compared from design to construction, taking into account the landfill and recycling possibilities while observing the technical constraints and the regulations concerning the chemical properties of waste. Beim Bau des rund 33 km langen, zweiröhrigen Koralmtunnels fallen insgesamt rund 5 Mio. m3 Tunnelausbruchmaterial an. Aus diesem Grund wurde bereits zu Beginn der Projektierung eine maximale Wiederverwertung des Ausbruchmaterials und Deponierung im Bereich der drei Baulose angestrebt. Dies erfolgte unter Berücksichtigung einer optimalen Wirtschaftlichkeit der gesamten Materialbewirtschaftung bei einer minimalen Umweltbelastung durch Minimierung von Transportvorgängen und Flächenverbrauch sowie weitgehende Ressourcenschonung. Im Speziellen galt es am Baulos KAT2 von der Planung bis zur Umsetzung den Anfall und den Bedarf gegenüberzustellen und damit die Deponierungs- und Verwertungsmöglichkeiten zielorientiert unter Berücksichtigung der technischen und abfallchemischen Rahmenbedingungen zu berücksichtigen.
Source:	Geomechanics and Tunnelling 10 (2017), No. 6
Page/s:	700-710
Language of Publication:	English/German

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