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Soft foundation grouting pipe and foundation reinforcement reinforcing method using same

A weak foundation and foundation reinforcement technology, which is applied in the field of foundation reinforcement and weak foundation grouting pipes, can solve the problems of easy aggregation of grout and uneven diffusion, so as to improve the effect of foundation reinforcement, distribute uniformly, and improve grouting. The scope of slurry work coverage and the effect of foundation reinforcement

Active Publication Date: 2018-11-13
广东诚创建设有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] This grouting method makes the grout spread to the surroundings depending on its own fluidity, which makes the grout easy to agglomerate and spread unevenly, resulting in a poor effect of filling the gaps in the foundation for reinforcement, and there is still room for improvement.

Method used

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  • Soft foundation grouting pipe and foundation reinforcement reinforcing method using same
  • Soft foundation grouting pipe and foundation reinforcement reinforcing method using same
  • Soft foundation grouting pipe and foundation reinforcement reinforcing method using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] A kind of soft ground grouting pipe, refer to figure 1, including pipe body 1, the end of pipe body 1 inserted into the foundation is blocked, telescopic pipe 2 is fixed on the side wall of pipe body 1, and grouting hole 21 is opened on the side wall of telescopic pipe 2, refer to image 3 , The check valve 3 is blocked on the grouting hole 21 .

[0053] refer to figure 2 , the tube body 1 is a cylindrical tube body 1 , and the hollow channel of the tube body 1 is square along the radial section of the tube body 1 .

[0054] The telescopic tubes 2 are close to the end inserted into the foundation. There are four telescopic tubes 2 and they are evenly distributed around the circumference of the tube body 1 . The telescopic tubes 2 expand and contract radially along the tube body 1 .

[0055] The telescopic tube 2 includes a fixed tube 22 fixed on the side wall of the tube body 1. The fixed tube 22 runs through the side wall of the tube body 1. The end of the fixed tub...

Embodiment 2

[0074] A method for reinforcing the foundation using the weak foundation grouting pipe of embodiment 1, referring to Figure 5 , including the following steps:

[0075] S001 Drill a hole and insert a grouting pipe at the place to be reinforced, as follows:

[0076] According to the detection situation, auger drills are used to drill holes at the place to be reinforced. The depth of the drilled hole is 1 meter greater than the depth of the place to be reinforced. The soil excavated by drilling is collected and stored next to it, and then put into the grouting pipe.

[0077] By drilling the depth greater than the depth of the place to be reinforced, it is convenient to adjust the insertion depth of the grouting pipe to adjust the position of the telescopic pipe 2 so that the telescopic pipe 2 is opposite to the place to be reinforced.

[0078] S002 grouting, details are as follows:

[0079] Adjust the insertion depth of the grouting pipe to adjust the height of the telescopic ...

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Abstract

The invention relates to the field of engineering construction, aims to solve the problem of poor foundation reinforcement effect, and provides a soft foundation grouting pipe. The technical scheme isas follows that the soft foundation grouting pipe comprises a tube body, wherein the tube body is inserted into the end of the foundation to be closed, the side wall of the pipe body is fixedly provided with a telescopic pipe penetrating through the side wall of the pipe body, when the telescopic pipe is completely contracted, the end part extending out of the telescopic pipe is located in the side wall of the pipe body, the end part, extending out of the telescopic pipe, of the telescopic pipe is closed, a plurality of grouting holes are formed in the side wall of the telescopic pipe, and aone-way valve which only allows the cement grout to flow outside the telescopic pipe is arranged on the grouting hole. The invention further provides a foundation reinforcing and reinforcing method, the foundation reinforcing and reinforcing method comprises the steps that a drill hole to be reinforced is drilled and inserted into a grouting pipe, grouting and pumping grout are carried out, a grouting pipe is rotated, grouting is carried out again, pumping grout is carried out, a grouting pipe is taken out, and drilling is carried out. According to the soft foundation grouting pipe, the telescopic pipe extends out through the hydraulic driving of the grout, the telescopic pipe extends out, and the cement grout is injected into the foundation soil from the grouting holes, so that the grouting range is large, the distribution is uniform, and the foundation reinforcing effect is good.

Description

technical field [0001] The invention relates to the field of engineering construction, more specifically, it relates to a weak foundation grouting pipe and a foundation reinforcement method using the grouting pipe. Background technique [0002] During the use of the road, affected by the driving load and the natural environment, the road performance gradually declines, and various damages occur, many of which are related to the instability or insufficient strength of the base or foundation, such as cracks, uneven settlement, voiding Wait. Improving the strength of the foundation and strengthening and strengthening the weak foundation are very important to improve the performance of the road and prolong the service life. [0003] The use of non-excavation grouting reinforcement technology to repair foundation diseases is convenient and quick, with a small amount of work and low cost. It avoids large filling and excavation, has little impact on traffic, and can significantly ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/12
CPCE02D3/12
Inventor 黄亮
Owner 广东诚创建设有限公司
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