Die for forming concrete pipe pile

Abstract

The invention discloses a die for forming a concrete pipe pile, which is characterized in that a die cavity of the die is equipped with at least one thick pile hole section and at least one thin pilehole section along a length direction, and the thick pile hole section is communicated with the thin pile hole section, wherein at least one groove is formed in the hole wall of the thin pile hole section, the length direction of the groove is consistent with the length direction of the die, the difference between the radius value of an inner hole of the thick pile hole section and the radius value of an inner hole of the thin pile hole section is larger than the groove depth of the groove, and a shaft shoulder surface is formed between the hole wall of the thick pile hole section and the holewall of the adjacent thin pile hole section. The die for forming the concrete pipe pile has the advantage of being simple in structure, the concrete pipe pile with better anti-pulling bearing performance can be conveniently manufactured and formed, but also the overall structural strength of the die is greatly improved, and the die is prevented from deforming.

Description

technical field [0001] The invention relates to the field of pipe piles, in particular to a mold for forming concrete pipe piles. Background technique [0002] Under normal circumstances, reinforced concrete prefabricated piles are prefabricated in factories using molds, 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 The pile body enters the predetermined position. Compared with other piles, the reinforced concrete prefabricated pile shows a relatively strong load capacity, relatively small settlement deformation, simple construction, low cost and relatively high efficiency in the process of practical application. High advantages, so it has been widely used in pile foundation engineering. [0003] Chinese Utility Model Patent (CN 206796169U) discloses a concave-convex prefabricated pile mould. The concave-convex prefabricated pile mold inclu...

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Problems solved by technology

[0005] Although the above-mentioned concave-convex prefabricated pile mold can be used to make variable-section piles that improve the uplift bearing performance through the concave-convex molded plate, there is a problem of complex structure in the concave-convex precast pile mold; The inner wall of the mold and the lower mold fits together, which makes the outer end surface of the prefabricated reinforcement of the formed prefabricated pile flush with the outer wall surface of the large diameter section of the prefabricated pile. Then, when the prefabricated pile is used, the prefabricated reinforcement separates the surrounding soil into multiple parts. Isolated arc-shaped block, which makes the arc-shaped block and the outer wall of the small-diameter section not tightly fitted, resulting in a limited increase in the relative friction between the pile body and the surrounding soil, thereby improving the uplift bearing performance of the concave-convex prefabricated pile limited

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