What is the difference between spiral steel pipe and spiral steel pipe pile

Spiral steel pipe is a kind of welded steel pipe, is a common building material, suitable for the construction of Bridges, docks, tunnels, etc. Spiral steel pipe pile is a special type of pile, it is a kind of pile type product designed on the basis of spiral steel pipe, mainly used in foundation reinforcement and bearing.

Although spiral steel pipe and spiral steel pipe pile are manufactured by spiral welding process, there are obvious differences between them in structural design, bearing capacity, construction technology and application fields. This paper will make a comparative analysis from the following aspects.

1. Different structural design

Spiral steel pipe: Spiral steel pipe is welded by strip steel along the spiral direction, with good continuity, uniform wall thickness and other characteristics. It is mainly used as a conveying medium or as a structural component.

Spiral steel pipe pile: Spiral steel pipe pile is on the basis of spiral steel pipe, according to the foundation bearing requirements for reinforcement design. The pile body is usually treated at the end of the pipe or the pile cap to ensure the pull and pressure resistance of the whole pile body, so as to meet the requirements of foundation engineering.

2. The installation method is different

Spiral steel pipe: Spiral steel pipe is mostly prefabricated in the factory, welded or connected to form a pipeline system, and then laid on the project site. Pay attention to the quality of pipe connection and overall sealing during installation.

Spiral steel pipe pile: The construction of spiral steel pipe pile usually adopts the method of on-site piling or vibration driving, which drives the prefabricated pile into the earth. The construction technology is more complex, requiring strict control of pile position, perpendicularity and the contact quality between pile and soil to ensure the stability of the foundation.

3. Different performance

Spiral steel pipe: as a general pipeline product, its design focus on the internal and external wall quality and fluid transport performance, carrying capacity is mainly for the pipe weight and a small amount of external force, not suitable for directly bearing large loads.

Spiral steel pipe pile: The design of spiral steel pipe pile focuses on high axial bearing and lateral stability, after reasonable calculation and reinforcement, its bearing capacity is much higher than ordinary pipe, suitable for buildings, Bridges and other heavy load structure foundation support.

4. Different application fields

Spiral steel pipe: Spiral steel pipe is widely used in oil, natural gas, water supply, chemical and other fluid transport systems, as well as some mechanical structures and plant equipment, the dimensional accuracy and fluid sealing requirements are high.
Spiral steel pipe pile: Spiral steel pipe pile is mainly used for foundation reinforcement and foundation engineering, such as high-rise buildings, Bridges, docks, wind power foundation and so on. Because of its high bearing capacity and construction convenience, it is particularly common in soft soil or Marine environments.

5. Different maintenance requirements

Spiral steel pipe as a transportation pipeline, its use environment is mostly a relatively controlled medium transportation system, easy maintenance and low cost. The spiral steel pipe pile is often directly placed underground, long-term contact with soil and groundwater, corrosion resistance and wear resistance requirements are higher, and the spiral steel pipe pile is generally used in the field of bearing, so the spiral steel pipe pile often needs additional anti-corrosion measures and regular testing and maintenance.

Summary

Although there are similarities in manufacturing process between spiral steel pipe and spiral steel pipe pile, there are still obvious differences between them. Spiral steel pipe focuses on fluid transport and structural applications, while spiral steel pipe piles are reinforced and designed specifically to provide high-load foundation support. The correct distinction between the two is very important for engineering material selection and construction design.