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ARGE tunnel Katzenberg, Germany

The project:


Part of the expansion and new Karlsruhe-Basle section to provide access to the New Transalpine Rail (NEAT).


Executing companies:

Wayss & Freytag Ingenieurbau AG

E. Züblin Tunnelbau AG

Marti Tunnelbau AG

Jäger Bau GmbH


The problem:


Open water drainage using submersible pumps to the tunnel portals and during tunnelling operations.


Our solution:


Use of Tsurumi submersible sewage pumps for complete drainage. Pump series used: KTZ, KTV, KRS with agitator.

In the event of abrasive and corrosive utilization, stronger wear and tear will take place naturally in certain components. With regards to the above application wear and tear can take place mainly in impeller, agitator, suction plate, shaft sleeve, oil ring, mechanical seal, pump casing, strainer, motor casing and discharge coupling. Depending on the working conditions the lifetime of those parts might vary significantly and can be shorter than the legal warranty period.
In this regard, please pay attention to our general terms and conditions that we also send to you by mail on request.