The main roles of U-shaped steel in industry include the following:
In a broad sense, U-shaped steel mainly serves to support various types of tunnels and protective supports for tunnels in industrial applications, allowing tunnels to receive secondary support under the support of U-shaped steel. For example, common types of mining tunnels and mountain tunnels in industry are completed with the support of U-shaped steel. Some supports for mountain tunnels also use U-shaped steel.
This type of steel is called U-shaped steel mainly because its cross-sectional shape resembles the English letter 'U'. However, due to different understandings of the performance and requirements of U-shaped steel in different countries, although they are all called U-shaped steel, the U-shaped steel produced in different countries varies in cross-sectional shape, geometric parameters, and materials.
China produces a wide variety of U-shaped steel models, and the industrial applications of different types may vary. For ordinary U-shaped steel products, positioning is generally done at the waist; while in the past two years, new types of U-shaped steel products have been technically improved and can directly adopt ear positioning. Additionally, with the innovative development of domestic steel production technology, various U-shaped steels with broader application ranges have been added, apart from the ordinary types.
During the use of U-shaped steel, supports are often used as support points. Their main characteristics include high pressure resistance, generally long support time, and convenience and flexibility during industrial installation, making them less prone to deformation. Because of the numerous advantages of U-shaped steel supports, they have been reused in mining tunnels, secondary support for mining tunnels, and support for mountain tunnels. As a major type of steel for making metal supports for tunnel shrinkage, it has also been widely used abroad.
Additionally, due to the many specifications of U-shaped steel, careful attention must be paid during calculations. Of course, besides U-shaped steel, there are other types of steel on the market. Since each type of steel has certain differences, it is essential to have a detailed understanding of the selected type of steel when making a choice.
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