Search Results: 'Deutsche Bahn'

Compressed air for top down
01 February, 2004
Dr.-Ing. Jürgen Schwarz, head of Heavy Civil Engineering for Walter-Bau AG, merged with DYWIDAG, and Dr.-Ing. Florian Hehenberger, of Hehenberger Consulting & Management, discuss the benefits of utilising compressed air for top down construction of tunnels in the presence of ground water

German order
01 January, 2004