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Bibra Tunnel, Germany

The Project:

The Bibra Tunnel is part of the German Unity construction project No. 8, the extension stretch on the route Nuremberg-Erfurt-Leipzig-Halle- Berlin.

Company involved:

Marti Tunnelbau Bunte

The Problem:

Maintaining water clearance by means of submersible pumps at the tunnel portals and during the tunnel advance.

The Solution:

Use of Tsurumi dirty water submersible pumps of widely differing types to remove water from the tunnel. Thanks to their tough, robust design, and the special internally-located slide-ring seal, Tsurumi pumps can be kept permanently in operation in "on-snore-mode".

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.