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      Corrugated pipe culvert

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      requirements of corrugated steel culvert construction

      Time£º2015-09-04 14:52
      ¡¡¡¡The corrugated steel culvert construction should be chosen in the warm season, because of steel corrugated pipe culvert materials are metal, the pipe joint purchase and connecting bolts are required as anticorrosive processing, moreover because the site construction is the emergence of the anticorrosive coating of local defects and destroyed, need to take certain remedial measures according to the specific circumstances, such as increasing coating coating.
      ¡¡¡¡Other technology of steel corrugated culvert construction requirements:
      ¡¡¡¡Application of corrugated culvert
              1, steel in highway maintenance engineering, wait for the culvert and the body parts to the construction site, construction units to start dismantling the old culvert work, the removal of old culvert, also must grasp the basic material preparation, material preparation is complete, and the rear can be passed the inspection pit the excavation work. The corrugated steel culvert pipe applied in the newly built highway engineering, at the same time in purchasing corrugated culvert culvert can grasp of basic materials preparation and foundation pit excavation work.
      ¡¡¡¡2, the import and export of corrugated steel pipe section can be used by manufacturers, with an opening two forms of straight pipe and rate the same slope and subgrade slope obliquely; also can according to the specific circumstances of the region where the using mortar rubble or dry rubble masonry. General in the cold area, adopting metal corrugated pipe section or dry rubble. In the river bed and joint import & Export ground and slope in certain range should establish double mortar rubble or dry flagstone paved, to prevent erosion, and the anti-seepage treatment necessary; in order to prevent the blockage of subgrade soil culvert entrance door at the mouth of the cave, and the embankment interchange do a certain height and thickness of the mortar rubble or dry stone tablets wall.
      ¡¡¡¡3, culvert sides after low-lying seeper area, need to set the cofferdam, drainage water, if necessary, also need to clear the replacement part of silt.
      ¡¡¡¡4, scour culvert import and export should be set corresponding regulating structures, at the same time the hole should be the necessary processing according to the terrain conditions, to prevent the hole from scour effect of discharge capacity of culvert.
      ¡¡¡¡5, different fill mode requirements.
      ¡¡¡¡The United States highway bridge design specification requirements: groove width anti slotted backfill shall be not less than the pipe diameter and 400mm, also should not be less than the tube diameter 1.5 times 300mm, provide enough space to install and backfill compaction to ensure.
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