• Steel culvert pipe
  • Steel culvert pipe
  • Steel culvert pipe
  • Steel culvert pipe
  • Steel culvert pipe
  • Steel culvert pipe
  • Steel culvert pipe
  • Steel culvert pipe
  • Steel culvert pipe
Description
After at home and abroad investigation and collection in recent years , corrugated pipe due to various problems which results in the pipe body damage, severe deformation occur occasionally, in order to prevent such incidents happening again, enumerate five kinds of situations as flowing, hope to strengthen the management of the construction process in the future,
Wedge part with uncompacted backfill, which results in the pipe body bottom flattens.
The pipe body wedge part on both sides and the local part have big stones, leading to local pipe hard cuts or bulge.
Asymmetry of backfill lead duck's egg circle, leading to serious collapsing.
Both sides filling not dense, leading to excessive deformation.
inside of 50cm on both sides of pipe, the backfill material is not up to the requirements, it should fill sand material, but adopt expasive soil or other material, it become soft when it encounter water, then no load capacity, results the pipe body big  lateral deformation.
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