Polygonal prefabricated pile

Abstract

The invention discloses a polygonal prefabricated pile which comprises at least one thin pile section and at least one thick pile section. The thin pile section and the thick pile section form an integrated structure in a linear direction. Outwards-protruding ribbed plates are arranged on the whole or part of the outer wall surfaces of the thin pile sections. In the cross section of the thin pilesections, the maximum linear distance between the outer end surfaces of the ribbed plates and the central axis of the polygonal prefabricated pile is L1, in the cross section of the thick pile sections, the minimum linear distance between the outer wall faces of the thick pile sections and the central axis of the polygonal prefabricated pile is L2, and the minimum linear distance L2 is larger thanthe maximum linear distance L1. By means of the polygonal prefabricated pile, it can be ensured that a soil body around the thin pile sections forms an integrated structure, so a pile body and the soil body around have a larger contact area and a closer fitting effect, the friction force between the pile body and the soil body around is improved, and then the anti-pull load-carrying property of the polygonal prefabricated pile can be greatly enhanced.

Description

technical field [0001] The invention relates to the field of pipe piles, in particular to a polygonal prefabricated pile. Background technique [0002] Under normal circumstances, reinforced concrete prefabricated piles are prefabricated in factories, and then transported to the location where the piles are located. On the basis of a certain degree of application of hammering, static pressure and other technological measures, the pile body Entering the predetermined position, compared with other piles, the reinforced concrete prefabricated piles show the advantages of relatively strong load capacity, relatively small settlement deformation, simple construction, low cost and relatively high efficiency in the process of practical application. , so it has been widely used in pile foundation engineering. [0003] Existing concrete prefabricated piles are usually round piles or square piles, and in the length direction of the concrete prefabricated piles, the shape and size of e...

AI Technical Summary

Problems solved by technology

However, in the axial projection area corresponding to the large cross-section pile, the multiple ribs set on the outer wall of the small cross-section square pile divide the surrounding soil into multiple isolated shaped blocks, which makes the shape block and the small cross-section The outer wall surface of the cross-section square pile is not tightly fitted, which results in a limited increase in the relative friction between the pile body and the surrounding soil, so that the uplift load-bearing performance of the hollow square pile with variable cross-section needs to be strengthened

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