Construction of the city railway station Ostentor
Wayss & Freytag Ingenieurbau AG
Pumping off the water arising during mined underground heading.
10 Tsurumi submersible waste water pumps of series KTZ were used for drainage. In the illustration above one KTZ45.5 and one KTZ67.5 are shown on snore operation installed in the starting shaft. The tunnel is driven on two levels over a length of 1300m and a cross section from 36sqm up to 185sqm. Track 3 at level 21m under ground passes below the track 2 running at level 14m underground and surfaces between the tunnels for tracks 1 and 2.