Integrated concrete pile tip and manufacturing method thereof

Abstract

The invention provides an integrated concrete pile tip and a manufacturing method thereof. The product mainly solves the problems that the conventional hollow square pile is difficult to sink, difficultly passes through a hard interlayer and a frozen soil layer and the like. The integrated concrete pile tip is divided into an integral type integrated concrete pile tip and an assembling type integrated concrete pile tip, wherein in the integral type integrated concrete pile tip, a pile tip part and a pile body can be manufactured together through centrifugal molding; and in the assembling type integrated concrete pile tip, the pile tip part is manufactured first and then is connected with the pile body into a whole. A prestressed steel bar runs through the axis direction of the integrated concrete pile tip; the integral type integrated concrete pile tip is applied with prestressing force by a pretensioning method; and the pile body part of the assembling type integrated concrete pile tip is applied with prestressing force by the pretensioning method and the pile tip part of the assembling type integrated concrete pile tip is applied with prestressing force by a posttensioning method. Compared with the common hollow square pile, the product saves one end plate and responds to the national call for energy conservation and emission reduction. The product has the advantages of improving the whole structural strength of the pile body, overcoming the defects that the pile body is not vertical and is displaceable, a pile material is damaged and fractured and the like, obviously improving pile-forming quality and the like.

Description

technical field [0001] The invention relates to a concrete prefabricated pile, in particular to a bullet-like prestressed concrete hollow square pile at one end. Background technique [0002] Prefabricated piles and prestressed hollow square piles are widely used in foundation treatment and foundation pile construction. The prefabricated reinforced concrete solid square pile adopts artificial pouring, directly fills the concrete into the prefabricated steel cage, and naturally maintains it. The pile tip and the pile body are formed together, but due to defects such as the steel cannot be prestressed, the strength of the concrete is low, and the waste of materials is serious, it does not conform to the national energy conservation and emission reduction policy. [0003] Prestressed concrete pipe piles can be produced in a factory. They are made by pouring concrete in prefabricated steel cages and undergoing processes such as tensioning, centrifugation, and curing. They have ...

AI Technical Summary

Problems solved by technology

However, due to the influence of tension, there are end plates at both ends of the pile body, and the pile tip and the pile body cannot be integrated. Most of them use prefabricated concrete pile tips and install them.

This not only brings inconvenience to the construction, but also often causes the pile body to be non-vertical, shifted, and even damaged and broken due to installation deviation.

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