Steel sheet pile is a kind of section steel with lock, its cross section has straight plate shape, groove shape and Z shape, and has various sizes and interlocking forms. The common ones are Larson style, lacvanna style and so on. Its advantages are: high strength, easy to drive into hard soil layer; It can be constructed in deep water. If necessary, diagonal support can be added to form a cage. Good waterproof performance; It can form Cofferdams of various shapes according to the needs and can be reused for many times. Therefore, it is widely used.
Steel sheet pile products can be divided into cold-formed thin-walled steel sheet pile and hot-rolled steel sheet pile.
(1) There are two types of cold-formed steel sheet pile: non bite cold-formed steel sheet pile (also known as channel plate) and bite cold-formed steel sheet pile (divided into L-type, S-type, U-type and Z-type).
(2) Hot rolled steel sheet piles in the world are mainly U-type, Z-type, as type, H-type and so on. The production, processing and installation process of Z-type and as type steel sheet piles are complex, and they are mainly used in Europe and America; U-shaped steel sheet pile is mainly used in China.