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Brenner Base Tunnel - Lot H51 Pfons-Brenner

Dr. Sauer & Partners provided tender support services.
Estimated cost: Commencement:
December 01, 2016
Completion date:
April 18, 2017
Innsbrucker Bundesstraße 67
5020 TYROL
Technical data:
Geology description:

Located within the Alps, the geology comprises phyllite, schist, marble and gneiss including main fault zones as well as major water ingress sections combined with a maximum overburden of 1300m.

Geology types:
Bid cost: Final cost:
€1.3 billion EUR
Service areas:
Construction methods:

The Brenner Base Tunnel (BBT) is a 64km long railway tunnel connecting Austria and Italy. Once completed, it will be the world's longest rail link underground. In addition to the two main tubes, the project comprises a complex set up of exploration adits, crosscuts, emergency stops and additional access tunnels, excavated by TBM and SCL methods. Dr. Sauer & Partners provided tender support services for the 18km lot H51 Pfons-Brenner and was responsible for creating the bid documents as well as conducting QA/QC services. The documents covered issues such as TBM choice, annular gap filling, reuse of excavated rock, rail delivery of construction materials, construction logistics and pre-excavation grouting.

BBT alignment (courtesy of BBT SE)
Lot H51 alignment (courtesy of BBT SE)