AUGSBURG MOBILITY HUB

THE PROJECT AND ITS REQUIREMENT

Augsburg‘s main railway station is being tunnelled under the DB tracks for a tram line to connect local public transport directly and conveniently to regional and long-distance traffic. In the course of this project, extensive modernisation measures of the DB facilities will also be carried out. The implementation of the project is planned in time shifted construction phases, the completion of which is expected by the end of 2023. For the new double-track tram line, a continuous mass-spring system is planned in the area of the station building and the DB tracks. The highly elastic USM 1000 W underballast mat will be used for the floating slab track and will also serve as stay-in-place formwork.
 
The intention is to obtain a reliable and low-maintenance track system, as due to the high frequency of future tram traffic, major repairs to the track are not possible without interrupting the line. Furthermore, the input of vibrations into the tunnel structure and into the DB track systems located above the tunnel must be minimised.

THE SOLUTION

To achieve a significant reduction in structure-borne noise and vibrations for the historic station building, the DB track systems and the tunnel structure itself, the FF track support slab is supported on Calenberg USM 1000 W as a floor mat. The mats are delivered from the factory cut to size and laid in sections across the axis of the track. USM G 1023, which is also prefabricated to size, is applied as side mat. The use of prefabricated mat lengths minimises cutting work on site and reduces the construction time of the mass-spring system accordingly.