Variable-section concave-convex pile

Abstract

The invention discloses a variable-section concave-convex pile. The variable-section concave-convex pile comprises strip-shaped pile bodies, wherein each pile body is of a concave-convex shape and has different section areas; at least one connecting piece capable of connecting every two pile bodies is arranged at each of two ends of each pile body; each connecting piece comprises a plug assembly and a socket assembly; each plug assembly protrudes out of one end of the corresponding pile body, and each socket assembly is recessed in one end of the corresponding pile body; each plug assembly and the corresponding socket assembly are positioned at the two ends of the corresponding pile body respectively; when the plug assembly of one pile body is inserted into the socket assembly of another pile body, the plug assembly and the socket assembly are hermetically connected. The variable-section concave-convex pile has the advantages of high uplift bearing capacity, high convenience in connection, high corrosion resistance, long service life and the like.

Description

technical field [0001] The invention belongs to the technical field of prefabricated parts in the construction industry, and relates to a concave-convex pile with variable cross-section. Background technique [0002] Due to the relatively poor quality and stability of immersed tube piles, prefabricated prestressed concrete piles have been rapidly developed in recent years. Prestressed concrete piles are one of the pile types. Existing concrete prestressed piles generally have the same cross-section , that is, the shape of the pile body remains unchanged, usually square, round, etc., and the uplift bearing capacity of this kind of pile is poor. [0003] In the piling process, piles of different lengths should be selected according to different needs, which requires the piles to be connected to each other to form a longer pile body. Both ends of the existing concrete prestressed piles are provided with steel plates, and the concrete prestressed piles are connected by mutual w...

AI Technical Summary

Problems solved by technology

After the connected pile body is pressed into the ground when the pile is pressed, because the soil contains salt, especially chlorine salt, it will corrode the steel plate exposed to the soil, resulting in the fracture of the connection between the pile and the pile, thus making the connection Pile disconnected

In addition, the way of connecting through welding of steel plates is relatively complicated, and the connection is inconvenient

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