| 摘要 |
The process provides limited traffic obstruction during roadwork for economical removal of traffic surfaces at identical level, such as road-road, or road-rail intersections. A bridge structure is required for the traffic surface under or over path. Instead of the conventional counter-bearing with a concrete wall, a slotted or sheet pile wall, or tubular wall (5,6) is used. The top end of such walls are coupled by a reinforced concrete plate rigidly to form a bottom-open, U-shaped frame support. The reinforced concrete plate forms simultaneously support structure for the bridge structure.
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