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Author(s):	Holzer, Wolfgang; Wagner, Oliver Kai; Leitner, Wolfgang
Title:
Abstract:	Working Group 169.02 has been working on the revision of Austrian standard ÖNorm B 2203-2 “Underground Works - Works Contract - Part 2: Continuous Driving” since mid-2016. For tunnelling classes, the common goal was to develop a classification methodology with balanced risk allocation which would improve calculability and make billing more transparent. A further focus was to minimise the potential for disputes during project management. To achieve these goals, tunnelling classes are to be classified on the basis of machine operating data. Die Arbeitsgruppe 169.02 überarbeitet seit Mitte 2016 die Werkvertragsnorm ÖNorm B 2203-2 “Untertagebauarbeiten Teil 2: Kontinuierlicher Vortrieb”. Dabei wurde hinsichtlich der Einteilung der Vortriebsklassen das gemeinsame Ziel definiert, eine Klassifizierungsmethodik mit ausgewogener Risikozuordnung zu entwickeln, die eine bessere Kalkulierbarkeit und eindeutige Abrechnung ermöglichen soll. Ebenso sollen Streitigkeiten im Zuge der Projektabwicklung möglichst reduziert werden. Zu diesem Zwecke sollen Maschinenbetriebsdaten für eine Vortriebsklassifizierung herangezogen werden.
Source:	Geomechanics and Tunnelling 14 (2021), No. 6
Page/s:	730-739
Language of Publication:	English/German

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