Trough shaped steel sheet pile is a cold-formed buckle type thin-walled steel sheet pile with a groove shaped cross-section, which has high bending resistance, shear torsion stiffness, and stability. Trough shaped steel sheet pile is a foundation steel composed of steel plates, with the characteristic of a groove shaped cross-section. It can be formed as a steel sheet pile for foundation pit support structure by overlapping or side by side.

The construction of steel sheet piles mainly includes identifying underground obstacles, leveling the site, determining the pile position, pressing the steel sheet piles, implementing drainage measures, excavating and installing supports (or anchoring), excavating to the bottom of the foundation pit and promptly carrying out foundation treatment, constructing the cushion layer and main structure, and gradually backfilling in a timely manner.

Steel sheet piles can be divided into various types according to their cross-sectional shapes, such as straight plate, groove, Z-shaped, U-shaped, H-shaped, etc. Among them, U-shaped steel sheet piles are the most widely used in China. Steel sheet piles can be divided into two types according to production technology: cold-formed steel sheet piles and hot-rolled steel sheet piles. Hot rolled steel sheet piles dominate the market due to their high strength and stable size. Cold formed steel sheet piles, on the other hand, are made of thinner sheets (commonly ranging in thickness from 8mm to 14mm) and processed by cold forming machines, which have the advantages of convenient production and customizable length.

As a sturdy guardian in modern engineering, steel sheet piles play an important role in various construction projects due to their advantages such as high strength, easy construction, and good waterproof performance. Steel sheet piles, as a steel structure with linkage devices at the edges and can be freely combined, play a crucial role in the engineering field. Due to their high strength, easy construction, and superior waterproof performance, they are widely used in various construction projects.