Projekt Kö-Bogen in Düsseldorf - Beeinflussung der Hochstraße "Tausendfüßler" durch eine tiefe Baugrube sowie durch die Unterfahrung mittels TVM

Project Kö-Bogen in Düsseldorf - Influence on the flyover "Tausendfüßler&rdquo due to a deep excavation and due to underpass by TBM

Deep excavations in urban areas usually involve special challenges arising from the relevant boundary conditions. In particular, the proximity to existing buildings often demands a specific and detailed consideration of the interaction between the pit excavation and building inventory.
Centrally located in the downtown core of the state capital Düsseldorf, an area will be developed within the project Kö-Bogen I. Outstanding is an about 20 m deep excavation located immediately next to the flyover, that is called "Tausendfüßler". Furthermore are the foundations of the single columns of the Tausendfüßler in the area of direct influence of an underpass by a tunnel boring machine (TBM) for a light rail tunnel. The boundary conditions that arise here are and the interactions between new and existing constructions are highlighted.
In a critical comparison of the results of deformation measurements and predictions are specific aspects of the planning and monitoring described.