Steel structure tunnel liner

Full Length Corrugations & Lapped Joints for More Effective Stiffness & Ring Compression. The Liner Plate provides optimum shaft stability and protection when constructing new utility tunnels, relining structures under highways and railroads and lining vertical shafts.

Steel structure tunnel liner

Corrugated plate liner are used to repair or replace the old bridge and culvert.

Full Length Corrugations & Lapped Joints for More Effective Stiffness & Ring Compression. The Liner Plate provides optimum shaft stability and protection when constructing new utility tunnels, relining structures under highways and railroads and lining vertical shafts.


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



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

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