Corrugated arch pipe is a curved load-bearing pipe made of high-strength corrugated steel, designed for culverts, tunnels, and underground passages. Produced by Tengshida with precision rolling technology, the corrugated arch pipe adopts Q355GNH weathering steel or 304 stainless steel, featuring a corrugated structure that enhances ring stiffness by 40%. This corrugated arch pipe supports modular assembly with flange connections, ensuring quick on-site installation and reliable sealing. It is widely used in highway culverts, railway tunnels, and municipal drainage systems, with excellent adaptability to frozen soil, swamps, and saline-alkali land.
Product Features
Strong Load-Bearing Capacity
Arch structure withstands 30m soil covering depth and 200kN/m² ground pressure.
Corrosion Resistance
Hot-dip galvanizing + epoxy coating dual protection, salt spray test ≥3000h.
Quick Installation
A 10m span pipe can be installed in 1 day by 4 workers, 70% faster than concrete structures.
Flexible Adaptability
Compensates for foundation settlement up to ±20mm, suitable for complex geological conditions.
Product Parameters
|
Technical Indicators |
Specification Parameters |
|
Span Range |
0.5m-15m |
|
Arch Height |
0.3m-8m |
|
Material |
Q355GNH Weathering Steel/304 Stainless Steel |
|
Thickness |
6mm-20mm |
|
Corrosion Protection |
Hot-dip galvanizing (≥84μm) + epoxy coating |
|
Service Life |
80 years |
|
Seismic Resistance |
9-degree seismic intensity |
Main Applications
Highway Culverts
Drainage and passage under roads in plains, hills, and mountainous areas.
Railway Tunnels
Diversion of groundwater and surface water in railway construction.
Municipal Drainage
Urban rainwater and sewage discharge systems in low-lying areas.
Agricultural Water Conservancy
Farmland irrigation channels and river reinforcement projects.
FAQ
Q: What is the difference between this product and circular pipe?
A: The arch structure provides better vertical load-bearing capacity, suitable for road and railway culverts with deep soil covering.
Q: Can it be used in frozen soil areas?
A: Yes, the flexible structure adapts to freeze-thaw cycles, with a low-temperature impact energy ≥60J at -50℃.
Q: What is the maintenance requirement?
A: It is maintenance-free under normal conditions; only annual inspection of flange connections is recommended.
Q: What is the delivery time for customized spans?
A: Customized spans take 25-35 working days for production and delivery, with free on-site installation guidance.
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