Driving device for the driving knife of a tunnel shield
DE578947C
Tunnel or tunnel excavation shield made of U-shaped excavation knives
DE575915C
Driving shield for tunnel or gallery construction, consisting of an outer main shield and an inner front shield
DE604460C
Procedure for driving tunnels or channels
DE576258C
Method for driving tunnels or galleries by means of a driving shield consisting of individual knives and mounted on training frames
DE577108C
Driving shield consisting of individual jacking knives for tunnel or gallery driving
DE582597C
Waterproof lining of tunnels, in which the sealing layer is arranged on a self-supporting outer molded stone jacket and lies between this and an inner load-bearing lining
DE569364C
Breast distortion consisting of sheet metal plates to secure the face when driving tunnels or galleries
DE590413C
Process for driving tunnels or channels in floating mountains
DE569233C
Support of the breasts when building tunnels and galleries
