Conduit construction

March 28, 2024

Josef Muff AG: Welding work for the Shil-Zurichsee relief tunnel in 24/7 operation

Josef Muff AG prepares the 120-tonne drill head for use in the Shil-Zürichsee relief tunnel project. Steel is processed in several shifts and with the utmost precision to get the heart of the approximately two-kilometer-long tunnel ready to go.

JMAG Power for the Shil-Zurichsee relief tunnel

Josef Muff AG, our pipeline construction experts, are working flat out to complete the project. Shil-Zurichsee relief tunnel to optimally prepare the tunnel boring head for the upcoming drilling work. This special cutterhead will play a crucial role in the drilling of the Shil-Zurichsee tunnel, which is around two kilometers long. With an impressive diameter of 7.5 meters and a weight of over 120 tons, the drill head is roughly equivalent to the weight of eighty average cars.

Welding work with precision

Precision work comes first - from flame cutting to grinding. Around 500 tons of steel with sheet thicknesses of 30 to 80 mm are waiting to be carefully welded together.

Two shifts and 24/7 operation

The work schedule is carefully thought out: In the first four weeks, work is carried out in 2-shift operation from 06:00 to 02:30. This is followed by 5 weeks of continuous operation in an impressive 24/7 rhythm. This targeted work structure makes it possible to progress along this fascinating path with confidence and determination.

Project data

Project period
Mid 2024

Client
Marti AG

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