The Project:
Expansion of the Erasmus railway line between Rotterdam and The Hague.
Executing company:
Ed. Züblin AG
DuraVermeer Groep NVn
The problem:
Using a hydroshield, two 2.3km tunnels with diameter 6.78m will be constructed.During building works the lowering of the groundwater level must be assured.
The solution:
Multiple submersible pumps from the KTV and KTZ 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.