MOBILE MACHINE AND METHOD FOR COMPACTING BALLAST

摘要

In a mobile machine for compacting ballast supporting a track, a machine frame carries a tie tamping unit and a track stabilization unit mounted rearwardly of the tamping unit in the operating direction of the machine in a range of the machine frame extending from the tamping unit to one of the undercarriages immediately following the tamping unit, no undercarriage supporting the machine frame on the track between the tamping unit and the one undercarriage.