Hel-Cor Galvanized Corrugated Steel Pipe

The minimum allowable depth of cover is the largest of:

For roads H=B/8+0.2(m) H=B/6(m) and not less than 0.6(m)

For railways H=B/4 and not less than 0.6(m)

Hel-Cor Galvanized Corrugated Steel Pipe

Depth of cover

The minimum allowable depth of cover is the largest of:

For roads H=B/8+0.2(m) H=B/6(m) and not less than 0.6(m)

For railways H=B/4 and not less than 0.6(m)

There is a possibility to reduce depth of cover provided that suitable checking calculations will be made.


Durability

Flexible structurePlate thicknessKinds of standard corrosion protectionRequired average min value(um)
plates≧6mmHot zinc galvanizing85
≧3mm do < 6mmHot zinc galvanizing70
≧1.5mm do < 3mmHot zinc galvanizing55
Bolts and nuts-Hot zinc galvanizing45


Hel-Cor Galvanized Corrugated Steel Pipe  can be used as:

-culverts

-bridges 

-tunnels 

-under passed 

-ecological crossing

-pedestrian tunnel 

-hangers 

-shelter 

-warehouse 

-stores for ammunition 

-belt conveyor protection 

-ventilating duct 

- and for reinforcement and reconstruction of existing structures as well.

Multiplate structures can be used for every class of service load provided that appropriate backfilling is performed.

Steel

Steel used for corrugated steel pipe is produced in accordance with Chinese standard.

Minimum yield strength 235N/mm2 and 345N/mm2

Steel standard Q235 and Q345

Also can accordance with EN10025

Steel standard S355JR, S235JR, S315MC

And can adopt the other standard steel according to customers’ demand


  • Highway ConstructionHighway Construction
  • Mine ProjectionMine Projection
  • Municipal EngineeringMunicipal Engineering
  • Irrigation EngineeringIrrigation Engineering
  • Railway Construction ProjectionRailway Construction Projection
  • Other ApplicationOther Application

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