High Strength Cold Formed Fabricated Steel Sheet Pile For Foundation Construction

High Strength Cold Formed Fabricated Steel Sheet Pile for Foundation Construction

Cold-formed steel sheet piles include non-bite-shaped cold-formed steel sheet piles (also known as trench plates) and bite-shaped cold-formed steel sheet piles (divided into L-shaped, S-shaped, U-shaped, and Z-shaped). Production process: Use thinner plate (common thickness 8mm ~ 14mm) in the cold bending machine continuous roll forming. Advantages: less investment in production line, lower production cost, flexible product size control. Disadvantages: the thickness of each part of the pile body is the same, the cross-sectional size cannot be optimized, resulting in increased steel consumption, the shape of the lock part is difficult to control, the joint is not tightly fastened, and the water cannot be stopped, and the pile body is prone to tear during use.

The cold-formed steel sheet pile is continuously rolled and formed by the cold-bending unit, and the side locks can be continuously overlapped to form a steel structure of sheet pile wall. Cold-formed steel sheet piles are made of thinner plates (commonly used with a thickness of 8mm to 14mm) and are processed by cold-formed forming units. The production cost is lower and the price is cheaper, and the fixed length control is more flexible. However, due to the rough processing method, the thickness of each part of the pile body is the same, and the cross-sectional size cannot be optimized, resulting in an increase in steel consumption; the shape of the lock part is difficult to control, the joint is not tightly fastened, and it cannot stop the water; It can produce low-strength steel grades and thinner products; and the stress generated during cold bending is relatively large, and the pile body is prone to tearing during use, and the application has large limitations. In engineering construction, the application range of cold-formed steel sheet piles is relatively narrow, and most of them are only used as supplementary materials for the application. The characteristics of cold-formed steel sheet pile: the most economical and reasonable section can be selected according to the actual situation of the project to achieve the optimization in engineering design, saving 10-15% of material than hot-rolled steel sheet pile of the same performance, greatly reducing the construction cost.

The cold-formed steel plate is a continuous cold-bending deformation of the steel strip to form a Z-shaped, U-shaped or other shape in cross-section, which can be connected to each other through a lock.

The steel sheet pile produced by the rolling cold bending forming method is one of the main products of cold bending steel used in civil engineering. The steel sheet pile is driven (compressed) into the foundation with a pile driver to connect each other into a steel sheet pile wall for blocking Soil and water retention. Common cross-sectional types are: U-shaped, Z-shaped and straight web type. Steel sheet pile is suitable for supporting soft foundation and deep foundation pit with high groundwater level. The construction is simple and convenient. Its advantage is that it has good water stopping performance and can be reused. Delivery status of steel sheet pile The delivery length of cold-formed steel sheet pile is 6m, 9m, 12m and 15m, and it can also be processed to length according to the requirements of users. The maximum length is 24m. (If the user has special length requirements, it can be proposed at the time of ordering) The cold-formed steel sheet pile is delivered at the actual weight or the theoretical weight. Application of steel sheet piles The cold-formed steel sheet pile products have the advantages of convenient construction, fast progress, no need for huge construction equipment in civil engineering applications, and are beneficial to seismic design. The shape of the cold-formed steel sheet pile can be changed according to the specific conditions of the project And length to make the structural design more economical and reasonable. In addition, through the optimized design of the section of the cold-formed steel sheet pile, the quality coefficient of the product has been significantly improved, the weight per meter of the pile wall width is reduced, and the project cost is reduced.

Advantage:

1. The bearing capacity is strong, its own structure is light, and the continuous wall composed of steel sheet piles has high strength and rigidity.

2. The water tightness is good, and the locks at the joints of the steel sheet piles are tightly combined to prevent natural seepage.

3. The construction is simple, can adapt to different geological conditions and soil quality, can reduce the amount of earth excavation, and the operation takes up less space.

4. Good durability, depending on the use environment, the life can be up to 50 years.

5. Construction is environmentally friendly, and the amount of borrowed soil and the amount of concrete are greatly reduced, which can effectively protect land resources.

6. The operation is efficient, and it is very suitable for the rapid implementation of flood relief, subsidence, quicksand, earthquake and other disaster relief and prevention.

7. The material can be recycled and used repeatedly. In temporary projects, it can be reused 20 to 30 times.

8. Compared with other single structures, the wall is lighter and has a greater ability to adapt to deformation, suitable for the prevention and treatment of various geological disasters.