Corrugated Steel Headwalls is a new product by Yitong company, the products can replace traditional cement walls and built culvert straight end wall and culvert wing wall: diameters vary from 0.6 to 16 meters, And we can provide comprehensive design and construction projects according to customer needs and site conditions.
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.
|Flexible structure||Plate thickness||Kinds of standard corrosion protection||Required average min value(um）|
|plates||≧6mm||Hot zinc galvanizing||85|
|≧3mm do < 6mm||Hot zinc galvanizing||70|
|≧1.5mm do < 3mm||Hot zinc galvanizing||55|
|Bolts and nuts||-||Hot zinc galvanizing||45|
Mobile: +86 186 0318 8333