Octagonal concrete centrifugal pile and forming mould thereof

Abstract

The invention provides an octagonal concrete centrifugal pile and a forming mould thereof. A pile body adopts a hollow structure, and the outer profile of the cross section of the pile body is in an octagonal shape. The edges of the octagonal shape have different length, the short edges are respectively 40 mm, 45 mm, 50 mm and 55 mm in length according to different pile shapes, and all the corners of the edges are in a stress relief arc shape; and the arc radii are the same and are respectively 18 mm, 22 mm, 24 mm and 26 mm according to the different pile shapes. The octagonal concrete centrifugal pile has the benefits as follows: the material is saved, the self weight is light, the pile is not easy to damage, the pile body is good in ductility, the pile forming quality is improved by 20%, the bending and shearing resistance is improved by 30%, the production process is easier to control and the mould is easier to make. Poor durability of pile body concrete due to pile material damage in the transportation and construction processes can be avoided. The bearing capacity provided by a single pile is 30% higher than that provided by the general process, the economic property is good, and the cost is saved by about 25%. The pile body of the forming mould is easy to de-mould, and the effects of energy saving and emission reduction can be achieved.

Description

technical field [0001] The invention belongs to the construction field and relates to the improvement of the shape and structure of a foundation pile in the construction field. Specifically, it is an octagonal concrete centrifugal pile and its forming mold. Background technique [0002] There are many existing prefabricated piles, such as concrete solid square piles, concrete hollow square piles, prestressed concrete pipe piles, prestressed hollow square piles, etc. Concrete solid square piles and concrete hollow square piles are usually non-prestressed prefabricated components, which occupy a large space for production and consume a lot of energy. The production of steel cages and concrete molding are mostly manual operations, the degree of mechanization is not high, and the quality is not easy to guarantee; bending performance Poor, hoisting, transportation, construction and transshipment are likely to cause cracks or even breakage in the pile body; Vibration is used to f...

AI Technical Summary

Problems solved by technology

Because it is difficult to turn the bolts in place accurately by manual turning, the sealing performance of the tongue and groove plate is poor, and slurry leakage is prone to occur during the production and molding, resulting in the scrapping of the product

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