| 摘要 |
<p>The invention concerns a method and apparatus for replacing railway panels, including switches (l6), by providing a pair of trucks (l2, l4) adapted to carry a temporary track (23), the replacement panel (l6) and gantries (20), the truck carrying the gantries (20) being located over the panel required to be replaced and the gantries (20) located in position. The old panel (30) is raised by the gantries (20), the temporary track (23) is located in the vacant space and the truck carrying the new panel is rolled on to the temporary track (23) and the new panel raised by the gantries (20), the temporary track (23) removed and the new panel (l6) dropped into position. </p> |
