| 摘要 |
<p>A system and method for removing and replacing rigid pavement sections in highways, bridge decks, airport runways, and various other similar structures are provided. The system typically includes a lifting frame (3, 4) which attaches to a damaged slab (1, 2) and is removed with the slab as a unit in a single operation. The frame may (3, 4) also be used to reinstall a replacement slab or panel while acting as external reinforcement. The frame (3, 4) may also serve to align the replacement panel in the void left by the removed section while under-bedding material is installed and cured under the new panel. The system may also utilize a unique saw cutting method and joint splicing method which accomplish a completed removal and replacement process which is faster, cheaper, and stronger than prior art methods. The system reduces the downtime required for replacement of transportation system facilities using rigid pavement, which are in need of repair by replacement.</p> |
