A method of building deflection correction and reinforcement based on anchor static pressure pile sealing technology

Abstract

The invention relates to a building rectification and reinforcement method based on the pile sealing technology of anchor rod static pressure piles and belongs to the technical field of construction engineering. The building rectification and reinforcement method based on the pile sealing technology of the anchor rod static pressure piles comprises the steps that an uneven settlement area of an existing building is internally provided with a plurality of pile pressing holes arranged in a matrix mode; the anchor rod static pressure piles are pressed into the pile pressing holes to the designed elevation, and anticipatory pile sealing is conducted on the anchor rod static pressure piles through prestress; after the strength of pile sealing concrete reaches the design value, threaded rods are sequentially screwed into the anchor rod static pressure piles in batches, so that the existing building tilts back; and after the existing building tilts back in place and is relatively stable, a plurality of grouting pipes are driven into a lifting area of the existing building so that grouting can be conducted. According to the building rectification and reinforcement method based on the pile sealing technology of the anchor rod static pressure piles, a pile sealing structure and a counterforce device are combined, so that the construction processes are decreased; and pile sealing is adopted at first, then rectification is adopted, thus, a pre-reinforcement effect can be achieved, and tilt aggravation is effectively prevented.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to a method for rectifying and strengthening buildings based on the static pressure pile sealing technology of anchor rods. Background technique [0002] Buildings built on soft soil or other unfavorable geological areas are prone to large uneven settlement due to survey, design, construction or environmental reasons, which will cause the building to tilt, deflect or crack. In addition, due to the aging of building materials or changes in the surrounding environment, modern and ancient buildings will also have different degrees of inclination. Corrective measures should be taken for buildings with excessive inclination to eliminate the adverse effects of inclination on the structure or foundation of the building, avoid damage to the structure or foundation, and achieve the purpose of restoring the normal use of the building. [0003] There are two main types of rec...

AI Technical Summary

Problems solved by technology

At present, the common reaction device is to use the anchor rod to set the reaction beam. In this structure, each pile needs to be equipped with a jack, which is expensive, and because of the conventional prestressed pile sealing method, the pile sealing must be carried out one by one after the deflection correction is completed. , the construction period is long, and the loss of prestress is prone to occur, causing the back tilt after deviation correction, and the effective deviation correction effect cannot be achieved

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