Steel Pipe Pile, which is made by spiral welding of steel plates in factories. Commonly used steel pipe pile outer diameter is 500~1200mm, and wall thickness is 10~18mm. At present, steel pipe pile is mainly used in offshore wharf.
Steel pipe pile is widely used in supporting pile, friction pile, and other situations. Especially when used as a supporting pile, because it can be fully driven into the hard supporting layer, it can play the bearing role of the strength of the whole section of steel. Even in the deep soft soil foundation above 30m, steel pipe pile can also be sunk into the solid supporting layer, and can give full play to its bearing capacity. To sum up, the main characteristics of steel pipe piles are:
1, can withstand strong impact. Because it can withstand strong impact force, its penetration and penetration performance is superior. If a hard interlayer is buried in the foundation with a small thickness and a standard penetration number of about ⅳ = 30, it can be passed through smoothly. According to the design needs to penetrate into the solid support layer.
2. High bearing capacity. As steel is the base material of steel pipe piles, its yield strength is high, so if the bank is sunk on a solid supporting layer, a large bearing capacity can be obtained.
3. High horizontal resistance and strong transverse resistance. Due to the large section stiffness of the steel pipe pile, the resistance moment of resistance to the bending moment is also large, so it can bear a lot of horizontal force. Large diameter thick wall tubes can also be used. Therefore, it can be widely used to bear transverse force on mooring pillars, abutments and piers.
4, design flexibility. According to the need, the wall thickness of every single pipe of the steel pipe pile can be changed, and the outer diameter adapted to the design bearing requirements can be selected according to the need.
5, pile length is easy to adjust. When the layer as the supporting layer of the pile tip does not fluctuate, the prepared pile will appear longer or shorter. Since the steel pipe pile can be welded or gas cut freely, it is easy to adjust the length of the pile so that the construction can be carried out smoothly.
6, joint safety, suitable for long-size construction. Because the steel pipe pile is easy to make welding joint, the pile segment is joined, and the strength of the joint is equal to that of the base material, so the embedding depth can be determined to meet the needs.
7, easy to combine with the superstructure. The steel pipe post is easily combined with the upper cap bar cement by pre-welding the steel bar to the top of the post. It can also be welded directly to the superstructure, thus ensuring that the top and bottom work together.
8. The least soil is discharged when piling. Steel pipe piles can be driven by opening, relatively speaking, the drainage cross-sectional area is small, and driving efficiency is high. Along with the following characteristics,
A: The disturbance effect on a brighter soil foundation is small.
B: There is no adverse effect on the adjacent structures, and very intensive piling construction can be carried out in a small area.
C: Most suitable for high-rise buildings, large mechanical equipment foundations, harbor structures, etc., in a small area of the role of large load engineering.
D: Easy to handle and stack. Steel pipe pile weight is light, does not worry about damage, and is easy to handle stacking operation.
E: Save project costs and shorten the construction period. As the steel pipe pile has many characteristics mentioned above, the construction period can be shortened if these characteristics can be fully utilized in practical engineering. Steel pipe pile is the most suitable for rapid construction. Therefore, its comprehensive economic benefits are high, relatively speaking can save the project cost.
Cangzhou Shenlong Pipe Manufacturing Co., Ltd. specializes in the production of steel pipe piles. We can design and produce various specifications, lengths, and required steel pipe piles according to the project requirements. The products have been used in the United Arab Emirates, the Netherlands, Vietnam, Canada and other countries.