| 摘要 |
The invention relates to a method for underfilling a switch point (4) by penetration of tamping tools (8) into ballast of a track, wherein during the underfilling of a switch point in a front machine section (9) a switch point section (12) delimited by two adjacent sleepers is photographed and stored in order to produce a reference photo (13). The stored reference photo (13) is provided automatically on a monitor (7) positioned in a booth for an operative to look at as soon as the tamping tools are located above the section of the switch point (4) depicted by the reference photo (13). |
