Leakage repairing rod for stopping slurry leakage of cast-in-situ bored pile on riprap embankment in complex sea area

Abstract

The invention provides a leak repairing rod for stopping slurry leakage of a cast-in-situ bored pile on a riprap embankment in a complex sea area, a grouting rotating ring is arranged at one end of the leak repairing rod, a spraying seat is arranged at the other end of the leak repairing rod, a plurality of spraying heads are arranged on the spraying seat, and the grouting rotating ring at the upper end of the leak repairing rod is connected with a driving rotating seat of a jumbolter. The air pressure pipeline and the grouting pipeline are communicated with the grouting rotating ring respectively and are rotatably and hermetically communicated with the grouting rotating ring, an air pressure vertical pipe and a solution vertical pipe are arranged in the leak repairing rod, the air pressure vertical pipe is communicated with the air pressure pipeline, and the solution vertical pipe is communicated with the grouting pipeline. Air and leaking stoppage slurry are accurately sprayed to the leakage position through the parallel pipelines, the leaking stoppage slurry forms a strong and hard hole wall through chemical reaction, and therefore the purpose of leaking stoppage is achieved. The equipment for quickly stopping the leakage of the cast-in-situ bored pile slurry on the riprap embankment in the complex sea area is simple to operate and accurate in leakage repairing.

Description

technical field [0001] The invention relates to the technical field of pile foundation construction, in particular to a leakage repair rod used for slurry leakage and slurry leakage prevention of bored piles on riprap embankments in complex sea areas. Background technique [0002] During the construction of bored piles on riprap embankments in complex sea areas, when passing through the rock layer, medium-coarse sand layer, and gravel layer, problems such as slurry leakage and hole collapse are very likely to occur, and the environmental protection requirements are high. Preventing mud spillage is also a key difficulty. [0003] The leakage of slurry in the deep coarse sand layer is extremely difficult to control and the plugging effect is not good, resulting in the failure of piling, which brings great economic losses to the enterprise and society and requires a lot of remedial measures. [0004] Chinese patent CN101173516B "Grouting Curtain Method for Preventing Slurry Le...

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a repair rod for preventing grout leakage of bored piles on riprap embankments in complex sea areas, so as to solve the problem of grout leakage in deep coarse sand layers, which is extremely difficult to control and has poor plugging effect, resulting in failure of pile formation The problem

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