Grundwassermodellierung Verlängerung U-Bahnlinie U2

Groundwater Modelling Subway U2, EIA, Vienna, Austria

For the extension of the subway U2 from Schottenring to Aspernstraße in the city of Vienna, Austria the groundwater lowering in the quaternary gravel, as well as a relaxation of the tertiary sediments is required for the construction of the tunnel in one construction sector a large area.

Aim of the variation studies, was the optimisation of the auxiliary construction measures war under ecological and economical point of view. This studies are based on the existing groundwater model for the 2 and 20 district.

Creation and calibration of a two-dimensional groundwater flow model for the 1 and 9 Viennese district. Based on this groundwater model simulations are performed to optimise the construction measures, also the expected effects for construction and operation are surveyed and displayed.

All findings were commented in EIA documents.

Facts to the project:

Client: Wiener Linien GmbH

Services :

Adjustment of existing transient two-dimensional groundwater flow model for the 2 and 20 district to the planned subway route.
Variation surveys to optimize the auxiliary construction measures, as well as to minimize the effects taking into account following boundary conditions:

- Groundwater management system for the 2nd and 20 district of hydro power plant Freudenau.

- Groundwater dive culvert alongside the subway U1.

- Diaphragm wall system alongside the Donaukanal - Danube channel.

- Groundwater recharging in the area Prater.