Aug. 17, 2017
The corrugated steel culvert is replaced slab culvert, and high quality of highway bridge construction. The structure of metal corrugated culvert is reasonable, the load distribution is uniform, and has a certain resistance to deformation.
1, the structure is rammed with the machine nearby, and the sand at the lower part of the pipe bottom is vibrated with a watertight method.
2, both sides should be symmetrical construction of culvert backfill, the thickness of each layer is 20cm, the compaction degree is not less than 93%.
3, above the culvert when the backfill thickness is less than 50cm by manual vibrating road roller compaction or by small.
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