The Project:
Construction of a 4km two-track railway tunnel in Vienna
Executing companies:
ARGE LT31 consisting of:
Hochtief Construction AG
Alpine Bau GmbH
Beton- und Monierbau GmbH
The problem:
Water removal from both tunnel tubes during tunnelling works (through loose rock). 5 emergency exit shafts, 30 to 55m deep. Quarrying areas 132 and 145 m2, 6 to 20m beneath existing buildings.
The solution:
Multiple submersible pumps from the KTV, KTZ and LH series. The special characteristics of Tsurumi pumps,such as an internal mechanical seal, upstream shaft sleeve with gasket and an oil lifter allow them to be used in on-snore-mode over an extended period.
