Tunneling machine advances and retracts in narrow access tube as tracked vehicle, where flat cable is wound and unwound on large reel, and tunneling machine comprises boring section

摘要

The tunneling machine (1) advances and retracts in a narrow access tube (2) as a tracked vehicle. A flat cable (3) is wound and unwound on a large reel (4), where the tunneling machine comprises a boring section (5), a transport section (6), an expansion section (7) and a motor section (8).