Method for lifting and centralizing sinking house

A house and subsidence technology, applied in soil protection, construction, infrastructure engineering, etc., can solve the problems of irregular settlement, wall cracks, endangering the safety of indoor personnel, etc. Precise Slurry Effect

Inactive Publication Date: 2014-09-17
JIANGSU DINGTAI ENG MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] After the house is built, there will be a certain degree of natural settlement with the extension of time. Generally, the settlement speed of the foundation is consistent and the settlement is small, which will not cause the house to tilt and will not endanger the safety of indoor personnel. However, for some special geological structures or engineering conditions, such as long-term erosion of rivers and water and soil erosion on the bank or due to large-scale unde...

Method used

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  • Method for lifting and centralizing sinking house
  • Method for lifting and centralizing sinking house
  • Method for lifting and centralizing sinking house

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] like figure 1 and figure 2 As shown, the underground part of house 1 after construction generally includes: longitudinal foundation beam 2 , foundation pit 3 , foundation 4 , and transverse foundation beam 5 .

[0033] When building a house 1, generally a foundation pit 3 is excavated on the ground first, and then the soil at the bottom of the foundation pit 3 is compacted into a flat foundation 4, on which a plurality of longitudinal foundation beams 2 and transverse foundation beams 5 are arranged. The square house bracing frame that forms, then lays cement board on this bracing frame and builds the rest on the ground again, finally fills up the soft soil layer 12 around the foundation pit 3 and the house.

[0034] The support frame composed of the longitudinal foundation beam 2 and the transverse foundation beam 5 is integrally cast from reinforced concrete and has high overall rigidity and strength. The multiple spaces formed by the longitudinal foundation beam 2 ...

Embodiment 2

[0043] The slurry described in the present invention adopts a high-strength foaming resin, which is added to the above-mentioned grouting equipment during grouting, and the viscosity of the resin flowing out of the grouting equipment (exit viscosity) is 250±45mPas , the volume of the resin slurry increases continuously during the flow, and its permeability is strong, which is suitable for quickly reaching the empty part or entering the gap, and is suitable for lifting the sunken house under the action of grouting pressure and its own expansion force. The above-mentioned slurry reaches the expansion limit in the underground void after 3 minutes, and completely solidifies and reaches its final strength after 10 minutes of injection, including compressive strength ≥ 2.5MPa and bending strength ≥ 2.2MPa.

[0044] The slurry has the following characteristics:

[0045] (1) The slurry does not contain water, will not shrink when dry, and can be densely filled and voided; the slurry i...

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Abstract

The invention relates to a method for lifting and centralizing a sinking house. The method comprises the steps that a detecting radar is used for detecting the sinking position of the sinking house and the positions of a vertical foundation beam and a horizontal foundation beam, the positions of first blank space, second blank space and third blank space are marked on the ground surface, close to the sinking position, in the house, the positions of injected holes are marked and drilled, injected pipes are arranged, the injected pipes extend into the first blank space, the second blank space and the third blank space, level gauges are arranged on the left side and in front of the house, grouting is performed on the injected pipes, the level gauges are used for detecting the vertical and horizontal inclining conditions of the house in time, the grouting volumes to the first blank space, the second blank space and the third blank space are respectively adjusted in time according to the vertical and horizontal inclining volumes of the house, and the whole grouting process is divided into several times until the house is centralized; the injected holes are sealed after the grouting is finished and the slurry is completely solidified; the sinking house is lifted through the grouting, and the grouting volumes to the first blank space, the second blank space and the third blank space are respectively adjusted to centralize the house.

Description

technical field [0001] The invention relates to a method for lifting and straightening a sunken house. Background technique [0002] After the house is built, there will be a certain degree of natural settlement with the extension of time. Generally, the settlement speed of the foundation is consistent and the settlement is small, which will not cause the house to tilt and will not endanger the safety of indoor personnel. However, for some special geological structures or engineering conditions, such as long-term erosion of rivers and water and soil erosion on the bank or due to large-scale underground engineering operations near the house, the foundation will have a large settlement and the settlement is irregular everywhere, and the house will be damaged. Due to the subsidence of this foundation, there is an inclination, and cracks will appear on the wall surface, which will endanger the safety of indoor personnel; for this dangerous house that occurs by subsidence, a meth...

Claims

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Application Information

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IPC IPC(8): E02D35/00E02D3/12
Inventor 陈赞冷一杰吴国平
Owner JIANGSU DINGTAI ENG MATERIAL
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