Porr Deutschland - tunneling works subway line U5 Frankfurt

Video recordings for Porr Germany on the tunnel construction work for the U5 Frankfurt to the Europaviertel: When the U5 light rail line was extended, the last few meters to the existing wall in the southern tube were safely completed using conventional tunnelling. The special thing about this work: The mining drive must take place using the overpressure method. This prevents groundwater from penetrating.

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