The Project:
Construction of a 360 m long tunnel with three lanes as component of a municipal bypass system; completion: Spring, 2006.
Executing company:
ARGE Tunnel Tunnel Siegkreisel, Betzdorf
Hochtief Construction AG
Kirchner Bau GmbH
Alpine Bau Deutschland GmbH
The Problem:
Pumping off of the water arising during the underground tunnel heading.
Our Solution:
Use of submersible pumps of type KTZ32.2, these being operated in permanent snore mode (dry running) during the complete construction period. This application is no problem for the pump thanks to the inhouse developed oil distributor in combination with the rotating mechanical seal, which is located completely internally.
