Scope of work
Section 3.1: Tunnelling under the southern part of Zurich Main Station and construction of a shaft in front of the southern part,
Section 3.2: Double-track railway tunnel (main tunnel) and parallel escape and rescue tunnel, total length of main
Section 3.1: Auxiliary tunnels: tunnel excavator with pipe and spile canopy support systems
Section 3.2: Main tunnel: TBM tunnelling using a convertible TBM
Section 3.1: Ground moraine (glacial gravels)
Section 3.2: Rock (molasse) and loose rock (gravel, lake sediments)
Weinberg Tunnel, Sections 3.1 and 3.2, Zurich,
as part of the Zurich Main Station-Altstetten-Oerlikon Diameter Line
Schweizerische Bundesbahnen SBB
[Swiss Federal Railways]
represented by Infrastruktur-Projekt Management Durchmesserlinie
Wayss & Freytag Ingenieurbau AG
in a joint venture
September 2007 to May 2014
€ 246 million
The Westerschelde tunnel ensured the first safe connection between the provinces of Zeeuwsch-Vlaanderen and Zuid-Beveland in the Netherlands. High water pressures in connection with loose soil posed new challenges to tunnel construction.
16.2 km long railway section connects both halves of the city of Antwerp on the banks of the River Schelde and creates a new railway line under the river for more than 100 trains per day.
Parallel drive with two TBMs with EPB shields for the extension of the Karlsruhe – Basel motorway.