The hospital struggled for years with a persistent parking problem. The shortage of parking places in the area has now been taken care of by a multi-storey underground car park for patients and visitors, located under the new premises. VK took responsibility for the total concept and the entire engineering of this difficult feat. There are almost 700 parking places, spread over 3 storeys. The car park is linked directly to the hospital’s entrance hall via a separate lift core. A previously built underground car park that was used as a buffer during construction work, now serves as a car park for doctors. This is connected to an underground tunnel so that the vertical cores in the buildings can be quickly reached.

In order to build the underground car park an enormous trench was excavated measuring approx 10.000m² and 12 metres deep at certain spots. The realisation of the 80cm thick slurry walls encircling the excavation, the study of tie bars and sub-soil management, just to start with, required lots of technical knowledge. The proper execution of the project was crucial and demanded cooperation from an experienced team so that the surface in the immediate vicinity was not disturbed.

The doctors’ car park encompasses two storeys and at level 2 connects, under the public road, to the existing car park. The poly-concrete floor is placed on top of a stud-surfaced floor to facilitate drainage to the edge, in case of any possible leakage that seeps in between the foundation slab and the poly-concrete floor.

A watertight tube was chosen for use in the execution of the tunnel. The watertight connection to the existing building was realised by casting a connective strip against the existing building. The waterproofness of such constructions can only be guaranteed through close cooperation between architects, engineers and the building contractor.