The Munich S-Bahn carries around 840,000 passengers a day and covers over 20 million kilometres a year. The main line, which was opened in 1972 for the Olympic Games, is thus reaching its capacity limits, especially since all S-Bahn trains have to pass under Munich city centre through one tunnel. This situation is remedied by the construction of the approximately 10 km long 2nd core line (2. S-Bahn-Stammstrecke). It is intended to relieve the existing route and serve as a fallback option in the event of a disruption. At the heart of the project are two single-track, seven-kilometre-long tunnels connecting the main station and the Ostbahnhof. In addition to the two above-ground interchange stations Laim and Leuchtenbergring, which will be rebuilt during ongoing operations, the three new underground stations Hauptbahnhof, Marienhof and Ostbahnhof will be completely rebuilt. As part of the STUVA conference, expert visits to four different construction sites of the 2. S-Bahn-Stammstrecke will be offered.

Marienhof Station:

The Marienhof station is located directly in the heart of Munich’s old town behind the city hall and challenges logisticians, geotechnical engineers, structural engineers and tunnel builders to top performance. The central access structure on the Marienhof, which is about 100 m long and 60 m wide, is being constructed in the groundwater using top-down method diaphragm walls. As an extension of the line to the west and east, compressed air tunnelling for the 60 m long platform tubes, which run under the existing underground lines 3 and 6, is being carried out. During the technical excursion, the ongoing work on the construction of the access structure, the extensive construction dewatering, the drilling for heave injections in the area of the mining advance and the construction of the connecting tunnels to the existing underground railway structure will be presented.

Guiding is only available in German