Construction method of mixing pile wall

Abstract

The invention discloses a construction method of a mixing pile wall. The construction method comprises the following steps that preparation is conducted before construction, specifically, the earth surface in a construction area is treated, and the flatness of a site is ensured; groove construction is conducted, specifically, a groove is excavated, and a mixer is positioned; mixing construction is conducted, specifically, a three-axis mixing pile machine is adopted for construction, pre-mixing sinking is conducted through the three-axis mixing pile machine, and the sinking speed is 0.5-1m / min; after the designed depth is reached, a mortar pump is started, after slurry reaches a slurry spraying opening, the mixing pile machine is lifted, slurry spraying and lifting of the mixing pile machine are achieved simultaneously, and the lifting speed is not larger than 1-2m / min; construction is repeated, the four-spraying and four-mixing process is achieved, and the cement mixing amount reaches 20-25%; and H-shaped steel is inserted, pulled and recycled. Construction of the mixing pile wall is conducted through the method, the stability of adjacent soil can be effectively ensured, and the construction efficiency is improved while the occurrence probability of hazards such as adjacent ground settlement, house inclination, road cracking and underground facility displacement is decreased.

Description

technical field [0001] The invention relates to the field of engineering construction, in particular to a construction method for a stirring pile wall. Background technique [0002] Mixed pile wall, that is, inserting H-shaped steel into the cement-soil pile, combining load bearing and anti-seepage and water retention, making it an enclosure wall with both force-bearing and anti-seepage functions. The mixing pile machine drills to a certain depth on site, and at the same time, the cement-based strengthening agent is sprayed out from the drill bit to mix and stir repeatedly with the foundation soil to form a support structure. [0003] During the construction of the mixing pile wall in the prior art, there is an impact on the surrounding adjacent soil, resulting in hazards such as adjacent ground subsidence, house inclination, road cracks, and underground facilities displacement, and due to the impact on the adjacent soil It will also bring certain harm to the structure of t...

AI Technical Summary

Problems solved by technology

[0003] During the construction of the mixing pile wall in the prior art, there is an impact on the surrounding adjacent soil, resulting in hazards such as adjacent ground subsidence, house inclination, road cracks, and underground facilities displacement, and due to the impact on the adjacent soil It will also bring certain harm to the structure of the formed mixing pile wall

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