Three axes agitating pile construction method capable of assisting in grooving of reinforced underground diaphragm wall

Abstract

The invention discloses a three axes agitating pile construction method capable of assisting in grooving of a reinforced underground diaphragm wall. The construction method is characterized by comprising the following technological steps that a, the range of a reinforced target of three axes agitating piles is determined; b, the reinforcing depth of the three axes agitating piles is determined; c, the distance between an inner reinforcing pile body and an outer reinforcing pile body of the three axes agitating piles is determined; d, guide wall construction is conducted according to a construction technique of an ordinary underground diaphragm wall; e, the slurry proportion is adjusted properly; f, main quality control points of reinforcement of the three axes agitating piles are determined; g, the stability of a pile machine is checked; h, the perpendicularity control over a pile frame of the three axes agitating piles is strengthened; i, the water cement ratio, the stirring time and the slurry quality are controlled strictly, and the slurry injection pressure and the slurry injection speed during slurry injection are controlled; and j, the drilling speed and lifting speed of a drill pipe are controlled strictly. The construction method has the advantages that the technique is mature, construction is easy and convenient, the project quality is safe and reliable, the horizontal displacement and settlement amount of important structures are quite small, the requirements for economic benefits are met, and smooth implementation of a project is guaranteed.

Description

technical field [0001] The invention relates to a construction method of an underground foundation project, in particular to a construction method of a three-axis mixing pile for auxiliary reinforcement of underground diaphragm walls forming grooves. Background technique [0002] There are various forms of structural support for deep foundation pits in China. In recent years, with the development of production and the expansion of urban construction scale, there have been more and more deep foundation projects, and the construction conditions have become more and more restricted. The method will cause the horizontal displacement of the top of the underground diaphragm wall, the horizontal displacement and settlement of residential buildings or important pipelines, and endanger adjacent buildings, roads, pipelines, subways and other facilities. [0003] Therefore there is above-mentioned inconvenience and problem in known underground continuous wall groove construction mode....

AI Technical Summary

Problems solved by technology

In recent years, with the development of production and the expansion of urban construction scale, there have been more and more deep foundation projects, and the construction conditions have become more and more restricted. The method will cause the horizontal displacement of the top of the underground diaphragm wall, the horizontal displacement and settlement of residential buildings or important pipelines, and endanger the adjacent buildings, roads, pipelines, subways and other facilities

[0003] Therefore, there are above-mentioned inconveniences and problems in the known underground diaphragm wall groove construction method.

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