4 December is St Barbara's Day. On this day, miners and tunnellers commemorate their patron saint, Saint Barbara, and stop work for a moment. So do our tunnelling experts in the "Lahntalbahn tunnel renovation" project. As part of "St Barbara's Day", PORR, the consortium partners FELDHAUS Bergbau GmbH & Co. KG and Heinz Schnorpfeil Bau GmbH, representatives of the client Deutsche Bahn as well as…
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