Arches constructing device for use in tunnel construction, has arch erector provided between operating position in which arches are placed, and mounting position in which erector with arch segments or preassembled part are mounted

摘要

The device has an arch erector (1) that is disposed between an operating position (2) in which arches are placed and twisted, and a mounting position (3) in which the erector with arch segments or preassembled part or entire arches are mounted. The position (3) lies against a tunneling direction behind the position (2) and outside of a securing area of a road heading machine (33), and the position (2) lies outside ridge shields.