2017 Karlsruhe combination solution – Durlacher Tor station
The points at the overground Durlacher Tor triangular junction lie a mere 70 cm above the reinforced concrete ceiling of the spacious Durlacher Tor station, which forms part of the Karlsruhe's light rail tunnel.
Vibrations from the overground rail traffic are transmitted into the new underground station through the slender roof covering and rigid tram track. The reinforced concrete wide-span roof over the high vestibule in the Karlsruhe subsoil responds to these vibrations, causing people in the station to perceive the structure-borne sound as intense and intrusive.
The annoying din will be reduced effectively by installing a light mass-spring system. This elastic structural element under the ballastless track comprises Calenberg USM 2020 track matting.
It ensures that rail traffic operates quietly in this section without causing stress, reducing all city rail-bound traffic disturbance for passengers and the transport operator.
Calenberg Ingenieure GmbHAm Knübel 2-4
+49 5153 9400-0
+49 5153 9400-49