Images: DB Netze
Scope of works:
VE 30: Main Station Tunnel Construction of the approximately 40 m deep access structure using the top-down method with diaphragm walls Platform tunnels constructed using the mining method under compressed air in the track area of the main station New construction of the ramp structure in the western cut-andcover section Excavation of two suburban railway tunnels with an external diameter of approximately 8.50 m from Donnersberger Bridge to Marienhof Station using two slurry TBMs, with single-pass segmental lining Four city-centre rescue shafts with connecting structures Extensive special foundation engineering and dewatering measures
Construction method
Geology
Project
Second Main Line of Munich Suburban Railway
Client
DB NETZE DB Netz AG DB Station & Service AG DB Energie GmbH
Contractor
„ARGE Tunnel Hauptbahnhof“ Joint Venture „ARGE Oberirdisch West“ Joint Venture Wayss & Freytag Ingenieurbau AG, Ed. Züblin AG, Max Bögl Group, BAUER Spezialtiefbau GmbH
Construction time
2019 to 2027
Construction sum net
Overall project costs € 865 million
Images: DB Netze
Due to swelling events and the associated heave and damage to the tunnel inner lining, it was planned to install protective netting in the area of the tunnel roof and the upper side walls.
2 parallel tunnel tubes with a length of 1.645 km each, inner diameter 10,15 m; 6 cross passages driven under the protection of ground freezing; 2 access ramps, which at the same time function as start and target shafts, Passing under A4/A133 motorways incl. connection to existing infrastructure
A new sewerage canal through the southwest of Munich relieves the existing canal system.