The Rapid Breaking Structure of the Overfilling Part on the Top of Cast-in-situ Pile

Abstract

The invention discloses a quick breaking structure for the overfilling part of the top of the cast-in-situ pile, which comprises the overfilling part of the pile top and the normal pile section below, and each longitudinal main reinforcement of the overfilling part is fitted with a longitudinal sleeve with the opening facing downwards. tube; one side of each longitudinal sleeve corresponds to a horizontal sleeve and a thermal block; the cross-section of the horizontal sleeve is flat eye-shaped, and the horizontal sleeve includes an upper arc surface, a lower arc surface, and two left and right sides. a sharp corner; each horizontal sleeve opens outward on one side and the outer opening of the horizontal sleeve is located on the side of the cast-in-place pile, the horizontal sleeve is filled with water and the outer opening is provided with a plug; the bottom arc surface of the hot melt block and the lateral The upper arc surface of the casing is fixed by heat melting, the side arc surface of the hot melt connection block is fixed by heat melting to the outer wall of the longitudinal casing pipe; the bottom ring surface of the longitudinal casing is flush with the height interface of the horizontal casing. The rapid breaking structure is fast, efficient and labor-saving, the fracture is smooth, and the elevation of the section can be effectively controlled.

Description

Rapid Breaking Structure of Over-irrigated Part of Cast-in-place Pile Top technical field The present invention relates to the technical field of foundation pile construction, specifically a kind of quick removal of cast-in-place pile top overfilling part structure. Background technique Cast-in-place pile is a common foundation pile form, and its construction step is roughly: utilize pile machine to form hole and adopt mud wall protection, straight After drilling to the bottom level of the hole, lower the reinforcement cage, then insert the pipe and pour concrete. In order to ensure the quality of the pile foundation, when pouring concrete Overfilling is required, that is, pouring a certain height more than the design elevation of the pile top, such as 1 meter. However, after overfilling, the concrete cap is poured and rammed later. Before reaching the bottom plate, the concrete of the overfilled part of the pile top must be knocked out and the longitudinal main re...

AI Technical Summary

Problems solved by technology

First of all, the over-filled part of the pile top is hammered and broken by the workers with hammer heads. The efficiency is low, the speed is slow, the operation is laborious, and the labor cost is high. However, there are a large number of cast-in-place piles in the construction site, knocking off the super-filled part of the concrete on the top of all cast-in-place piles will generate huge labor costs, and the economy is too poor; It may damage the longitudinal main reinforcement of the super-filled part and the remaining concrete of the pile head below, which will affect the quality and performance of the pile body; and, also due to the randomness of manual knocking, the fracture of the pile body will be uneven, that is, the pile body will be damaged. The height of the damage is inconsistent, and the top elevation of the remaining pile heads is difficult to control, and naturally it is impossible to ensure that the height of the remaining pile heads extending into the cap meets the design requirements

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