Post-grouting construction of pile ends and grouting failure treatment device

Abstract

The invention discloses a device and method for grouting construction after pile end and grouting failure treatment, including a slurry mixer truck and a high-pressure grouting bin. The slurry mixer truck includes a mixer truck body, and a drive battery is fixedly installed on the outer wall of the top of the mixer truck body. And the stirring box, the outer wall of the top of the stirring box is fixed with a stirring motor, and the output shaft of the stirring motor passes through one end of the stirring box, and a stirring rod is welded on one end of the stirring box, and the stirring rod is located inside the stirring box. , the steps are as follows: S1: Pre-embed the grouting plate: before the cast-in-situ pile is piled, determine the installation position of the grouting plate, and pre-embed the grouting plate at the bottom of the pile; this invention pre-embeds the grouting plate as a pile The effective technology in foundation engineering construction can strengthen the surrounding soil by grouting the enlarged head consolidation body formed by the grouting plate at the pile end, thereby increasing the bearing capacity of the pile, reducing settlement, and greatly improving the practicability of the device.

Description

technical field [0001] The invention specifically relates to the technical field of grouting construction, in particular to post-grouting construction at pile ends and a grouting failure treatment device. Background technique [0002] Post-grouting construction technology of cast-in-place pile refers to that after the cast-in-situ pile is formed, through the grouting pipeline pre-installed at the bottom of the pile or on the side of the pile, a high-pressure grouting pump is used to press a certain pressure of cement slurry into the pile end and expand it. To the soil layer on the side of the pile, the strength of the pile tip soil and the pile side soil is enhanced, thereby eliminating the inherent defects of the traditional cast-in-situ pile construction technology, and jointly increasing the resistance of the pile tip and the pile side, achieving the goal of increasing the bearing capacity of a single pile and reducing the absolute settlement. a technical measure. [000...

AI Technical Summary

Problems solved by technology

In actual construction, it is unavoidable that some grouting pipes will be broken and blocked, making post-grouting impossible, which greatly affects the bearing capacity of the pile and brings safety hazards to the building

The effect of post-grouting on the bearing capacity of pile foundations is often carried out through bearing capacity tests. If it is found that the bearing capacity does not meet the design requirements, remedial grouting cannot be performed because the grouting pipe has been blocked by solidified cement slurry

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