Pile steel pipes for bridge construction

Compared to most building materials, steel pipes have higher load-bearing capacity and toughness. This makes it very suitable for building bridges, especially those with larger spans. In most cases, steel pipes are used for building foundations. Steel pipes can be driven into piles as foundations themselves or as shells or caissons to facilitate the pouring of concrete, especially underwater. As a hollow section with sturdy walls, steel pipes can be easily driven into weak soil or rock layers to achieve the integrity required for foundation engineering.

Construction of wharf

The wharf mainly serves as a supporting structure during bridge construction. It is usually a temporary structure. When the wharf is used as a foundation, steel pipes are driven into the soil or seabed to form a sturdy foundation. In order to maintain its original position, pipelines are usually reinforced with reinforced concrete.

1、 Types of pile pipes for bridge construction

Drilled pile tube is a common foundation form in bridge construction, and the pile tube is used for the drilling process. The material, strength, and size of the pile tube need to meet the requirements to ensure that there will be no deformation, damage, or other issues during the drilling process, thereby ensuring the quality and stability of the borehole. For example, in the construction of some large bridges, such as the Sutong Bridge, it is necessary to use bored pile pipes suitable for large diameters and long pile lengths to meet the bearing requirements. The pile diameter can reach 2.50-2.85m, and the pile length is 117m.

Pipe piles have many advantages in road and bridge construction. It has the characteristics of strong bearing capacity, strong adaptability, less construction time, and guaranteed quality. Can adapt to complex and ever-changing geographical environments, ensuring the stability of roads and bridges. For example, when encountering complex geological environments with various types of soil affecting the stability of bridges, pipe piles can play an important role.

2、 The role of pile pipes in bridge construction

As a part of the bridge foundation, the load-bearing pile tube plays an important role in transferring the load from the upper structure of the bridge to the foundation. Like piles, they can transfer some vertical and horizontal loads to the foundation for bearing, reducing the load and ensuring the overall stability of the bridge.

Adapting to complex geological conditions in different geological conditions, such as soft soil layers, rock formations, etc., pile pipes can adapt to changes in geological conditions through reasonable design and construction. Pipe piles can adapt to complex geographical environments, whether it is complex soil conditions or other geological conditions, which helps to solve the stability problems of bridges caused by geological factors.

3、 Design points related to pile pipes for bridge construction

The selection of pile length and pile type is an important design point in the design of road and bridge pile foundations. Multiple factors such as the load size and geological conditions of the bridge need to be considered. Different pile types (such as bored piles, pipe piles, etc.) and pile lengths have different impacts on bearing capacity, construction difficulty, etc. Detailed analysis and calculation are needed to ensure the scientific and reasonable design of road and bridge pile foundations, thereby better improving the safety and reliability of road and bridge construction.

The calculation of vertical bearing capacity is also crucial for the calculation of vertical bearing capacity of pile foundations. If the pile foundation bears the axial load, it is necessary to ensure the vertical force of the pile foundation or composite pile foundation. If it bears eccentric vertical load, its standard should be raised; When considering the DI seismic load situation, the calculation of its vertical bearing capacity needs to be rigorous and careful.

4、 Testing related to pile pipes for bridge construction

The importance of pile foundation testing pipes is that bridge pile foundation testing pipes are important tools for testing pile foundations. As the supporting structure of a bridge, the quality of pile foundation directly affects the safety and stability of the bridge. The detection tube can conduct a detailed inspection of the appearance, internal structure, size, and shape of the pile foundation to determine whether it meets the design requirements. By detecting the defects and problems in the pile foundation in a timely manner, corresponding measures can be taken for repair and reinforcement to ensure the safe operation of the bridge.