Device for pile head construction and its construction method

Abstract

The invention relates to a device for pile head construction. The device comprises a pile casing, a cover plate, multiple door sheets, limiting structures, anti-floating structures and lifting rings.The pile casing is inserted into a pile head in a reinforcement cage. The pile casing is provided with an upper casing opening and a lower casing opening, and the pile casing is hollow. The cover plate blocks the upper casing opening, and a through hole allowing a grouting pipe to penetrate through is formed in a dry plate. The door sheets are hinged to the lower casing opening, and the door sheets can rotate around hinge positions. The limiting structures are arranged corresponding to the door sheets, the limiting structures are fixedly arranged in the pile casing, the door sheets are limitedfrom rotating into the pile casing through the limiting structures, and when the door sheets abut against the corresponding limiting structures, the door sheets and the limiting structures are in butt joint to close the lower casing opening. The anti-floating structures are mounted on the pile casing, and the pile casing is prevented from floating in the mode that the anti-floating structures areconnected with the reinforcement cage. The lifting rings are used for lifting the pile casing, and the lifting rings are mounted on the outer wall, close to the upper casing opening, of the pile casing. The problem that the pile head is difficult to cut is effectively solved, and meanwhile the construction speed of a pile foundation project is increased.

Description

technical field [0001] The invention relates to the field of pile foundation construction, in particular to a device for pile head construction. Background technique [0002] At present, most of the broken pile heads of concrete cast-in-place pile foundation projects in China mainly use manual and air compressor picks to break the solid piles. This method has the following problems: [0003] 1. The removal of pile heads is slow, and the removal of pile heads with a diameter of more than 1 meter is particularly difficult; [0004] 2. When the solid pile body is broken, the steel bars extending into the cap are easily damaged, which will affect the overall strength of the pile and reduce the overall strength of the pile; [0005] 3. The method of breaking the solid pile head is inefficient, and every step of stripping the steel bars such as drilling is time-consuming and laborious, and it is difficult to ensure that the steel bars are not damaged; [0006] 4. The solid pile ...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the defects of the prior art, provide a device for pile head construction, solve the problem of difficult pile head interception, and at the same time speed up the construction speed of pile foundation engineering

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