| 摘要 |
Device for supporting advancing and completion work in tunnel construction, especially in underground railway construction, comprises an auxiliary device (11) in the form of a working platform, a drilling system (7) and/or a spray manipulator movably arranged on rails (16) in a second plane above an extraction and loading machine (2). A machine frame (17) holding the rails is provided in the roof region (4). The machine frame is portal-shaped and moves in the longitudinal direction (6) of the tunnel. The rails are designed as side rails (18, 19) for holding the sliding carriage (25) supporting the trucks of the auxiliary device and for guiding the trucks. <??>Preferred Features: The machine frame has transverse supports (20, 21) connected via the side rails and on which the stabilized side rails are removably fixed, preferably in pairs. |
