Method for maintaining and treating defective cast-in-place pile

Abstract

The invention relates to the technical field of cast-in-place piles, and discloses a defective cast-in-place pile maintenance treatment method which comprises the following construction steps that (1) a defective cast-in-place pile is provided with a pile body, and an original reinforcement cage is arranged in the pile body; a water mill drill is used for drilling a plurality of meshing holes, and the meshing holes form an annular groove located in the surrounding area of the original reinforcement cage; the annular groove divides the pile body into a pile ring and a pile core, the pile core is chiseled away, and a pile middle hole is formed; (2) the construction step (1) is repeated till the bottom of the pile middle hole reaches the defect position of the pile body; 3) binding a new reinforcement cage in the hole in the pile; (4) concrete is poured into the pile center hole, and the concrete and the pile ring form a whole after being solidified; the defective cast-in-place pile maintenance treatment method has the advantages that defect position treatment construction organization is facilitated, the defect position treatment construction process is visual and controllable, construction is safe and reliable, and the comprehensive construction cost is low.

Description

technical field [0001] The patent of the present invention relates to the technical field of cast-in-situ piles, in particular, to a repair and treatment method for defective cast-in-situ piles. Background technique [0002] In the process of pouring piles into piles in pile foundation engineering, due to the influence of complex stratum conditions, improper process operation or abnormal concrete materials, there will be some common quality problems such as discrete pile body concrete, broken piles, and excessive thickness of pile bottom sediment to a certain extent. [0003] When the cast-in-situ pile is detected as a defective cast-in-place pile, the common practice is to reinforce it by grouting, or to re-construct on the original cast-in-place pile, or to use methods such as refilling the pile. However, when the defect position of the defective cast-in-situ pile is deeply buried or the defect section is large, the grouting reinforcement method is difficult to effectively...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for repairing defective cast-in-situ piles, which aims to solve the problems of long time consumption, poor processing quality and high cost in the repair and treatment of defective cast-in-situ piles in the prior art

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