METHOD FOR TAMPING DOWN BALLAST UNDER SLEEPER

摘要

PROBLEM TO BE SOLVED: To provide a method by which best operation of a tamping down unit may be obtained. SOLUTION: Each tamping-down cycle (sz) includes a vibration sequence (x) by which the tamping tool (2) is vibrated and a non-vibration sequence (y) by which the tamping tool (2) is not vibrated. COPYRIGHT: (C)2006,JPO&NCIPI