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Title:	Safety gallery Kerenzerberg (CH) - Practical experiences with an innovative and emission-free logistics concept / Einsatz eines innovativen und emissionsfreien Logistikkonzepts beim Bau des Sicherheitsstollen Kerenzerberg (CH)
Abstract:	The main lot of the Kerenzerberg safety gallery, a project of the Swiss Federal Roads Office (ASTRA), is currently under construction. In addition to the main works, the construction of a 5.2 km long safety gallery with a tunnel boring machine, the contract includes the excavation of 20 cross-passages and 52 ventilation galleries. The Joint Venture KER450 that was awarded the contact chose to excavate these cross headings simultaneously to the main drive. To implement the logistics concept, which needs to be highly capable and flexible at the same time, the contractor decided on an innovative and emission-free supply system known as Automated Service Vehicles (ASV). These fully electric, wheel-bound vehicles allow an almost automatic operation and were recently developed and supplied by the company VirtuRail. The first experiences after approximately one year of operation are very positive and have proven to be a main factor in the successful realisation of a challenging logistics concept. Die Arbeitsgemeinschaft KER450 errichtet derzeit im Auftrag des schweizerischen Bundesamts für Straßen (ASTRA) den Sicherheitsstollen Kerenzerberg. Zusätzlich zum Vortrieb des ca. 5,2 km langen Sicherheitsstollens sind 52 Abluftstollen und 18 Querverbindungen zur Bestandsröhre zu errichten. Der Auftragnehmer entschied sich dabei, diese Querbauwerke zeitgleich zum Hauptvortrieb zu erstellen, was eine große Herausforderung an die Logistik stellt. Für die Bewältigung dieser Aufgabe setzt die Arbeitsgemeinschaft ein innovatives Logistikkonzept um. Zum Einsatz kommen sogenannte Automated Service Vehicles (ASV), die rein elektrisch angetrieben sind und einen hoch automatisierten Betrieb ermöglichen. Bei diesen Fahrzeugen handelt es sich um eine Neuentwicklung des Unternehmens VirtuRail. Der Einsatz dieser Fahrzeuge hat sich bewährt und war ein wesentlicher Faktor für die erfolgreiche Umsetzung des gewählten Konzepts.
Source:	Geomechanics and Tunnelling 15 (2022), No. 6
Page/s:	756-766
Language of Publication:	English/German

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