Structures on both sides of the roadbed in order to reduce non-uniform settlement, to reduce the Bump, and raise the comfort of highway vehicles, bridges and culverts on both sides of the transition section of embankment filling set, and the gravel for filling process.

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In order to reduce the roadbed to have the differential settlement in the structure both sides, reduces the bridge head to jump off the phenomenon, enhances the highway vehicles travel comfortableness, to the bridge and the culvert both sides roadbed reclamation establishment change-over portion, an

Reduce subgrade structure sides of uneven settlement, alleviate the phenomenon of jumping and improve comfort of Expressway traffic, transition section on bridge and embankment culvert both sides set and gravel replacement treatment.

Structures on both sides of the roadbed in order to reduce non-uniform settlement, to reduce the Bump, and raise the comfort of highway vehicles, bridges and culverts on both sides of the transition section of embankment filling set, and the gravel for filling process.