A processing technology for grouting system for wharf and bridge piling steel pipes

Abstract

The invention discloses a grouting system used for a wharf and bridge piling steel pipe and a processing technology thereof, and relates to the field of foundation engineering construction accessories, in particular to an improvement of a grouting system installed in the piling steel pipe.The grouting system used for the wharf and bridge piling steel pipe is ingenious in structure, convenient to use, high in stability, low in requirement for the material of a grouting pipe when used, recyclable and capable of effectively preventing grout outlets from being blocked.Inner protective plates are arranged in the axial direction of the steel pipe and fixedly connected to the inner wall of the steel pipe so that a grouting pipe set is placed among the inner protective plates, the top of each inner protective plate is opened, and the bottom of each inner protective plate is sealed; outer protective plates are hollow and opened in the tops, and the outer protective plates are fixedly connected to the outer wall of the steel pipe and located outside grout outlet holes.The grouting system has the advantages of being ingenious in structure, convenient to use, high in stability, low in requirement for the material of the grouting pipe when used, recyclable and capable of effectively preventing the grout outlets from being blocked.

Description

Technical field [0001] The invention relates to the field of foundation engineering construction accessories, in particular to the improvement of a grouting system installed in a pile-driving steel pipe. Background technique [0002] Piling steel pipe is a kind of pile foundation. It is usually directly pressed into the ground after being erected, and concrete is poured to the bottom of the steel pipe after being pressed, so that the bottom of the steel pipe is fixedly connected with the surrounding ground. In the prior art, in order to ensure that concrete can be effectively fed to the bottom of the steel pipe after being pressed in, the grouting pipe is mostly fixedly connected to the inner wall of the steel pipe, and a grout hole connected to the grouting pipe is opened at the bottom end of the steel pipe, so that the grouting The pipe can go down with the steel pipe. However, in actual use, people found that, on the one hand, because the steel pipe is tunneled, there is soil...

AI Technical Summary

Problems solved by technology

However, people have found in actual use that, on the one hand, when the steel pipe is excavated, there is soil inside and outside, so if the grouting pipe and the steel pipe are to be excavated together, the material of the grouting pipe has extremely high requirements, and the processing cost is high. , The use cost is high and cannot be recycled and reused; on the other hand, after the tunneling of the steel pipe is completed, the grout hole is easily blocked by the surrounding soil, so that the operator cannot inject the same amount of concrete as the preset value into the grouting pipe. As a result, problems such as failure of steel pipe installation have been caused, which has a great impact on the installation cycle of steel pipes.

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