Construction of a railway tunnel with a length of 1480 m.
ARGE Tunnel Augustaburg, Erfurt
Hochtief Construction AG, Frankfurt
Alpine Bau Deutschland GmbH
Drainage during the underground tunnel heading.
A Use of type KTZ32.2 submersible pumps operated in 24-hour snore mode for drainage purposes during the tunnel heading. Thanks to their special properties including their internal rotating mechanical seal and upstream shaft protection sleeve with seal, the Tsurumi pumps can be operated in 24-hour snore mode.
The advantages of this design are:
- Extended service lives
- Lower costs for spare parts
- Lower labour costs