Piling pipes and H-type piles are two different types of pile foundations, which differ significantly in materials, structures, and application scenarios. Piling pipes usually refer to precast concrete piles, while H-type piles are steel structure piles.
Pile pipe refers to a pile foundation composed of steel pipe, tongue and groove, tongue and groove pin, etc., which is mainly used for water, soil, sand and other projects. The left end of the steel pipe pile is connected to the tongue and groove, and the right end is connected to the tongue and groove pin. The two are connected through the tongue and groove to achieve the connection between the piles. It has the advantages of novel design, simple structure, convenient use, easy overlap, and good sealing.
Piling pipes are typically manufactured from high-strength steel and feature a circular hollow cross-section. They are available in two main types based on manufacturing methods: spiral welded (SSAW) and longitudinal welded (LSAW). SSAW pipes are favored in many projects due to their improved stiffness and manufacturing efficiency.
H-piles, on the other hand, concentrate material in the flanges. While highly effective against bending in a single plane, they offer limited resistance to torsion due to their open cross-section.
Attribute | Steel Pipe Piles | H-Beam Piles |
Cross-Section Shape | Circular hollow | H-shaped open section |
Manufacturing Process | Spiral/Longitudinal/Seamless welding | Hot rolling / Welding |
Size Range | Diameter 203–1219 mm, wall thickness 2.8–63.5 mm | Height 100–400 mm, flange thickness 6–20 mm |
Material Efficiency | High, evenly distributed | Medium, material concentrated in flanges |
Isotropy | Yes, same performance in all directions | No, directional performance |
Torsional Resistance | Excellent | Poor |
Corrosion Protection | Moderate, effective with protective measures | Low, corners prone to corrosion |