Shielding device for moving a tunnel and method for making a tunnel beneath the existing structure, preferably the road or railroad structure

摘要

at the time of a tunnel (1) covers the upper surface of the lower shield his (6) by developing it with the rear drum (2). the end of the bottom plate (2) is mounted to the tunnel from the urabiaju0105cej head (7). cut the ground (5) coincide and the tunnel (1) upper plate (9), rozwijanu0105 front drum (3).the end of the sheet (9) is associated with a structure (4), in front of the ground (5). as the cutting land (5) urabiaju0105cu0105 head (7), the lower plate develops with rear drum (2), moving it together with the tunnel (1) on the lower surface of upper plates (9), developed from the front drum (3). after przepchniu0119ciu tunnel (1), drums (2, 3) dismantling.