Levelling system for tunnelling beneath railway track

摘要

The levelling system has a measuring device for automatic detection of the actual position of the tunnel structure, with a number of coordinating lifting devices (9) for regulating the position of the railway track, coupled to a centralised levelling device (10) evaluating the position data provided by the measuring device. Pref. the levelling device is also used to control the insertion of the tunnel structure beneath the railway track, the evaluated position data pref. displayed on a monitor screen and/or provided by a printer.