| 摘要 |
A road repair method is provided to repair a road by perforating injection holes on the subsided road, injecting grout materials to the injection holes and lifting up the subsided road. A road repair method comprises the steps of: checking whether a road(30) formed on the top of a rubble layer(20) formed on the top of the tamped ground(10) is subsided; perforating a first injection hole between a road and a rubble layer or to the inside of a rubble layer; inserting an injection pipe to the first injection hole; injecting grout materials(40) for reinforcement through the injection pipe of the first injection hole to fill up a gap in the rubble layer, and hardening the grout materials in the rubble layer for the appointed hours, thereby forming a grout reinforcement layer; forming a second injection hole(H2) to penetrate one side of the road and the rubble layer in order; injecting an injection pipe to the second injection hole; injecting grout materials for filling between the rubble layer and the ground through the injection pipe; and lifting up the grout reinforcement layer together with the subsided part of the road, and then repairing the subsided road. |
