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Definition and Classification of Metal Corrugated Pipe Culvet
Definition
Metal corrugated pipe culvert is also called corrugated pipe culvert or steel corrugated culvert. It refers to the threaded corrugated pipe for culverts buried under highways and railways. It is made of corrugated metal sheets or made of semi-circular corrugated steel sheets. Circular corrugated pipes are widely used in culverts (pipes) in highways, railways, small bridges, passages, retaining walls, and various mines, roadway retaining walls and other projects.
Compared with reinforced concrete pipe culvert, corrugated pipe culvert has the advantages of thin pipe section, light weight, convenient transportation and storage, simple construction process, quick assembly, and short construction period.
When building the corrugated pipe, it can be assembled into any length according to the needs. When necessary, the pipe section can be removed and moved to another place for construction. In areas lacking sand and gravel materials or areas with low foundation bearing capacity, the advantages of corrugated pipe culverts are more advantageous. Is significant.
Corrugated pipe culverts have long been widely used in foreign roads, railways, and housing construction projects. Some developed countries not only have factories to manufacture bellows sections, but some countries have issued bellows culvert design and construction specifications or regulations. Before the liberation of our country, the highway and railway departments also used imported bellows pipe joints. At present, there are factories in my country that specialize in the production of bellows culverts. In view of the many advantages of this kind of pipe culverts, my country's steel output has become the forefront of the world. The prospects for the promotion and application of bellows culverts in my country are very broad.
Classification
1. Classified by assembly method
(1) Integrated corrugated pipe culvert (2) Assembled corrugated pipe culvert
2. Classified by shape
(1) Round (2) Oval (3) Arch
3. Classified by connection method
(1) Inner flange connection (2) Outer flange connection (3) Plate overlap (4) Clamp connection
4. Classified by processing method
(1) The steel belt is rolled and pushed into a spiral and rolled into a circle.
(2)Snap forming spiral steel pipe
(3) The two-step method of making pipes and suppressing corrugated bellows
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