Germany

Stuttgart 21: Construction of
the Filder Tunnel has commenced

The completed tunnel boring machine “Suse” (S-738) prior to commencement of tunnelling Quelle/credit: Arnim Kilgus
The completed tunnel boring machine “Suse” (S-738) prior to commencement of tunnelling
Quelle/credit: Arnim Kilgus
In the upper tunnel, a spiral conveyor (A) will be used to collect the excavated material, while in the lower tunnel a conveyor belt (C) will be used because it is more suited to the subsoil there. In both sections additional conveyor belts (B) will then remove the material from the tunnel Quelle/credit (2): Herrenknecht
In the upper tunnel, a spiral conveyor (A) will be used to collect the excavated material, while in the lower tunnel a conveyor belt (C) will be used because it is more suited to the subsoil there. In both sections additional conveyor belts (B) will then remove the material from the tunnel
Quelle/credit (2): Herrenknecht
Scheduled construction stages of the Filder Tunnel: (1) TBM drive upper section Filder Tunnel, closed mode with screw conveyor discharge, pull-back of the TBM to the Filder portal; (2) TBM drive upper section Filder Tunnel, closed mode with screw conveyor discharge; (3) TBM drive lower section Filder Tunnel, open mode with belt conveyor discharge; (4) TBM drive lower section Filder Tunnel, open mode with belt conveyor discharge, disassembly in the tunnel.In the geological transition zone ranging approximately 1.15 km between the upper and lower section, the tunnel and a connection adit are excavated with conventional tunneling methods Quelle/credit: Herrenknecht
Scheduled construction stages of the Filder Tunnel: (1) TBM drive upper section Filder Tunnel, closed mode with screw conveyor discharge, pull-back of the TBM to the Filder portal; (2) TBM drive upper section Filder Tunnel, closed mode with screw conveyor discharge; (3) TBM drive lower section Filder Tunnel, open mode with belt conveyor discharge; (4) TBM drive lower section Filder Tunnel, open mode with belt conveyor discharge, disassembly in the tunnel.
In the geological transition zone ranging approximately 1.15 km between the upper and lower section, the tunnel and a connection adit are excavated with conventional tunneling methods
Quelle/credit: Herrenknecht

In July a new phase has begun in the construction of Stuttgart‘s underground railway station as political and business representatives celebrated commencement of construction of the Filder Tunnel. The construction contract for the Filder Tunnel and the connecting tunnel Ober-/ Untertürkheim was awarded to a joint venture led by the Porr Group. The contract has a volume of around 700 million euros.

Weighing in at 2000 metric tons, a 120-meter tunnel boring machine with a shield diameter of 10.82 m built by Herrenknecht has commenced work at the Filder Tunnel . “Now we can all show how high-tech...

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