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Method for treating uneven settlement of building

A treatment method and building technology, applied in construction, soil protection, infrastructure engineering, etc., can solve problems such as unevenness of buildings, and achieve the effect of controllable construction speed and simple construction quality control procedures

Inactive Publication Date: 2011-05-18
中铁六局集团有限公司广州工程分公司
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a new treatment method for uneven settlement of buildings. The technical problem to be solved is to introduce the design and construction method of dynamic tracking grouting, in order to help grouting technology in foundation pits, Popularization and application of uneven settlement treatment of surrounding structures and buildings in tunnel engineering construction

Method used

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  • Method for treating uneven settlement of building
  • Method for treating uneven settlement of building
  • Method for treating uneven settlement of building

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Example 1: Podium of a certain building in a certain city

[0059] A large amount of groundwater was lost due to the construction of nearby projects, which caused the settlement of the foundation of the podium. According to the monitoring data, the settlement on the east side of the podium of the building has exceeded the control value of 30mm, the maximum settlement value on the east side is 96.4mm, and the settlement on the west side is relatively small, with a maximum value of 22.2mm. See the distribution for the settlement value Figure 5 shown. Obvious cracking and deformation appeared at the settlement joints of the podium.

[0060] The foundation of the skirt building is in the form of artificially dug hole piles, the pile length is 6-10 meters, and the foundation of the main building is 22m deep artificially dug hole piles, with pile diameters of 1m and 1.2m. In order to slow down the sinking of the podium, we use dynamic tracking grouting for the bearing la...

Embodiment 2

[0061] Example 2: Podium of a certain building in a certain city

[0062] A large amount of groundwater was lost due to nearby engineering construction, causing the foundation of the building to settle. According to the current monitoring data, the maximum settlement of the podium of the building has exceeded the control value of 30mm, the maximum settlement value on the south side is 75.0mm, and the settlement on the north side is relatively small, with a maximum value of 20.9mm. See the distribution for the settlement value Figure 6 shown. The land subsidence around the building is more obvious.

[0063] The foundation of the building is in the form of hammered cast-in-situ piles, the pile length is 30 meters, and the pile diameter is 1m. We use dynamic tracking grouting for the bearing layer of the pile foundation for the foundation, and use grouting to compensate for the uneven settlement of the bearing layer due to water loss to protect the building. Finally, the un...

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Abstract

The invention provides a method for treating the uneven settlement of a building, which comprises the steps: (1) positioning a drill hole: during preparing for the construction, fixing a tool, feeding a PVC (poly vinyl chloride) sleeve after drilling, drilling a hole at a preset depth, washing the drill hole, and simply pressing water; (2) grouting a contacting section: during grouting, building a vertically-distributed grout stopping wall, and grouting according to the same axes direction after grouting the grout stopping wall; and repeatedly drilling and grouting to a designed altitude; (3) backwards filling the grout to seal the hole: mechanically pressing the grout to seal the hole at the whole hole of a bed rock section, withdrawing the sleeve, backwards filling the grout to seal the hole, and organizing the data of the single hole and submit the date; and (4) monitoring the lift value of a plurality of settlement points of the building to ensure the next grouting quantity. By introducing a design and construction method of grouting by means of dynamic tracking, the method for treating the uneven settlement of the building is good for popularizing and using the grouting technology for the uneven settlement of the peripheral structure and building in the engineering construction such as a foundation pit and a tunnel.

Description

technical field [0001] The invention relates to the rectification of uneven settlement of buildings, in particular to a building construction project suitable for rectification of uneven settlement of buildings due to water loss and other reasons. Background technique [0002] The building settlement processing method of prior art mainly contains following several kinds: [0003] 1. By excavating and filling the area where the foundation will fall deep, this measure can be taken if the treatment range is not large, the treatment depth is within 3m, the excavation construction conditions are met, and the underlying layer is good; [0004] 2. Short piles are used to deal with large depths, where it is difficult to take measures to reduce groundwater, or in areas where excavation is inconvenient in dense building complexes, and for projects with high requirements for foundation bearing capacity and deformation of buildings; [0005] 3. Replace high compressibility materials (s...

Claims

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Application Information

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IPC IPC(8): E02D3/12C04B28/04C04B28/26
Inventor 宋林冲
Owner 中铁六局集团有限公司广州工程分公司
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