ClientNS Vastgoed ontwikkelings bv Utrecht
ArchitectKOW architecten Den Haag
Project size15.000m2 GFA
Start of project2007
Consulting servicesStructural design, detailed design drawings, structural calculations
On top of and directly next to the tunnel, an underground parking facility has been realised. Special risks to this are horizontal displacement of the tunnel due to one-sided earth excavation, tunnel rising caused by reduced top load on the tunnel, and transference of vibrations to the residential tower. To this end, Aronsohn has performed the complicated technical analyses, tunnel measurements and discussions with insurers and their experts in order to avoid these risks and ascertain technical success for the client’s and ProRail’s (Dutch national railway manager) project.
The residential tower itself causes the Kedichem layer, a sedimentary layer 30m underground, to condense. This also impacts the tunnel. The residential tower is traditionally constructed with solid concrete floors in which air pipes are cast. The façades contain sandwich elements and feature high quality concrete outer leafs. Construction went successfully and train traffic has not been hindered at any time.