A Static Explosion Integral Destruction Pile Head Structure with Built-in Ring Device and Its Construction Technology

Abstract

This application relates to a static explosion integrated pile head structure with a built-in ring device and its construction technology, which belongs to the technical field of cast-in-place pile construction. It includes a steel cage body and a pile head removal device. The pile head removal device includes a partition, an annular pipe and The liquid injection pipe, the partition is fixedly connected with the steel cage body in the steel cage body, and the partition is located above the level of the pile head breaking, the annular pipe is located above the partition and connected with the partition, and one end of the liquid injection pipe is connected with the annular pipe , the other end protrudes from the top of the steel cage body; the side wall of the annular tube is provided with a snap-in hole, and a split block is bonded in the snap-in hole, and the end of the split block away from the axis of the ring tube is provided with a spike. The application has the effects of reducing the cracks in the pile body and improving the pile quality.

Description

technical field [0001] The present application relates to the field of cast-in-situ pile construction, in particular to a static blast integral demolition pile head structure with a built-in ring device and its construction technology. Background technique [0002] During the construction of cast-in-situ piles, in order to ensure the concrete strength of the pile head, when pouring the cast-in-place piles, the elevation of the top of the piles will be higher than the design elevation of the pile top, and the part of the pile head that is higher than the design elevation of the pile top will be removed during subsequent construction. . [0003] At present, the existing Chinese patent that can refer to the notification number is CN104343115B, which discloses a pile foundation pile head overall demolition structure and method, including the pile foundation and the main reinforcement of the reinforcement cage in the pile foundation, and the acoustic tube. The main reinforcement...

AI Technical Summary

Problems solved by technology

Although the above breaking method can reduce the damage to the main reinforcement, it is necessary to drill a hole and insert the separation wedge into the separation hole during the pile breaking process, and then chisel the pile foundation to separate the pile head from the pile body. During the truncation process of the pile head and the pile body, since the pile head and the pile body are in an integral structure, when the separation wedge is knocked to break the pile head, it is easy to cause cracks in the pile body, which affects the quality of the pile.

[0004] In view of the above-mentioned related technologies, the inventor believes that there are defects that are likely to cause cracks in the pile body and affect the quality of the pile.

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