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

A technology for anchor static pressure piles and buildings, which is applied in construction, foundation structure engineering, etc. It can solve problems such as long construction period, loss of prestress, and failure to achieve the effect of deviation correction, and achieve the effect of reducing construction procedures and preventing intensification of inclination

CN106149774BActive Publication Date: 2018-01-30SHANGHAI GEOTECHN INVESTIGATIONS & DESIGN INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2018-01-30

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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.
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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...

Examples

Embodiment Construction

[0020] The present invention will be further described below in conjunction with specific embodiments and accompanying drawings.

[0021] Such as figure 1 with figure 2 As shown, a method for rectifying and strengthening buildings based on static pressure pile sealing technology with anchor rods includes the following steps:

[0022] (1) Open a number of pile pressure holes 1 arranged in a matrix in the uneven settlement area of ​​the existing building 2 .

[0023] (2) Press the anchor static pressure pile 4 into the pile pressure hole 1 to the design elevation, and pre-stress the pile for pre-sealing.

[0024] Such as image 3 As shown, the static pressure pile 4 comprises a static pressure pile body 41, an arc-shaped support 42 is welded on the top of the static pressure pile body 41, and a dividing plate 43 is placed on the top of the arc-shaped support 42 and is connected with The threaded rods 44 passing through the partition 43 are connected, and the threaded rods 4...