Steel Pipe Pile

Features of steel pipe pile

1. Large vertical-bearing capacity

By driving the pipe piles into firm bearing layers, they exhibit a large vertical-bearing capacity.

2. High bending strength

Steel pipe piles with high stiffness and high bending strength enable resistance to considerable horizontal force during earthquakes.

3. Excellent environmental performance

Piles with small section areas realize less earth removal and low vibration and noise.

4. Custom fit for each structure

Various pile lengths, diameters, and thicknesses contribute to the economical design.

5. Easy production of longer piles and jointing piles

Longer products can be manufactured, and, as joining piles by welding is also easy, it is possible to apply these to deep water and deep underground structures.

6. Easy jointing with superstructures

Jointing with upper concrete structures is easy, using reinforcing steel bars at the top of piles.

7. Easy handling

Steel that’s light and tough contributes to easy handling and transport.

Application of steel pipe pile

• Bridge foundations 

• Building foundations 

• Harbor structures 

• River structures 

• Others (landslide prevention piles, etc.)

Steel pipe pile production process :

1. Blasting and rust removal: The surface of the steel pipe is cleaned to remove any scale, rust, or other contaminants through blasting or chemical treatment.

2. Cutting: The steel pipe is cut into the required length according to the design specifications.

3. Pre-drilling: Holes are drilled in the pipe at predetermined intervals to facilitate the installation of reinforcing bars and to allow for concrete to flow into the voids during the pile driving process.

4. Welding: The steel casing is welded together to ensure a watertight and structurally sound pile.

5. Reinforcement placement: rebars (steel rods) are placed inside the pipe according to the design requirements to provide additional strength to the pile.

6. Concrete filling: The pipe is filled with concrete, which surrounds and encases the reinforcing bars, creating a composite structure.

7. Curing: The concrete is allowed to cure, harden, and gain strength over time.

8. Testing: The pile might be subjected to various tests such as load tests, integrity tests, or corrosion tests to ensure that it meets the design specifications and quality standards.

9. Protection: To protect the pile from corrosion, it might be coated with a layer of protective material such as paint, galvanization, or a plastic covering.

10. Storage and transportation: Once the piles are produced, they need to be stored and transported carefully to the construction site.