Grouting arrangement structure and method for rapid reinforcement and repair of strip foundation

A strip foundation and structure layout technology, which is applied in the direction of foundation structure engineering, foundation structure repair, soil protection, etc. Low physical damage and good reinforcement effect

Pending Publication Date: 2022-04-29
ZHENGZHOU UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the invention is to provide a grouting layout structure and method for rapid reinforcement and repair of strip foundations, which solves the problems of uneven settlement and overall settlement diseases caused by weak foundations of strip foundations

Method used

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  • Grouting arrangement structure and method for rapid reinforcement and repair of strip foundation
  • Grouting arrangement structure and method for rapid reinforcement and repair of strip foundation
  • Grouting arrangement structure and method for rapid reinforcement and repair of strip foundation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] figure 1 A grouting arrangement structure for rapid reinforcement and repair of strip foundations is shown, the grouting arrangement structure includes grouting inner holes placed on both sides of the centerline of the strip foundation and grouting inner holes placed in the grouting inner holes grouting pipe, the depth of the grouting inner hole is greater than the depth of the strip foundation,

[0049] The grouting inner hole is arranged obliquely, and the distance between the center of the upper surface of the grouting inner hole and the centerline of the strip foundation is L1, and the distance between the center of the lower surface of the grouting inner hole and the centerline of the original strip foundation is L2. The depth of the original strip foundation is H, the inclination angle of the grouting inner hole is a, and the inclination angle

[0050] The depth of the original strip foundation is obtained through the foundation design drawing and construction ...

Embodiment 2

[0066] If the size of the strip foundation is too small and the distance between the grouting outer hole 3 (2.5 cm in diameter) and the grouting inner hole 4 (2.5 cm in diameter) is less than 0.3 meters, the grouting operation of the grouting outer hole 3 will be cancelled, and the grouting inner hole 3 will be replaced. Each distance (L1 and L2) of hole 4 is increased by 0.1 meters; the specific operation is as follows:

[0067] The present invention also provides a method for rapid reinforcement and repair of strip foundations, said method comprising the following steps:

[0068] Step 1. Mark the grouting points of the building to be reinforced and repaired with the strip foundation, and obtain the global grouting point layout;

[0069] The global grouting points are arranged from the middle to both sides, from weak to strong, and the distance between grouting points is 1 meter; figure 2 shown.

[0070] Step 2. According to the global grouting point layout diagram, the gr...

Embodiment 3

[0089] If the size of the strip foundation meets the distance between the grouting outer hole 3 (2.5 cm in diameter) and the grouting inner hole 4 (2.5 cm in diameter), the distance is not less than 0.3 meters, then open the grouting inner hole 4 and the grouting outer hole 3 grouting operation; The specific operation is as follows:

[0090] The present invention also provides a method for rapid reinforcement and repair of strip foundations, said method comprising the following steps:

[0091] Step 1. Mark the grouting points of the building to be reinforced and repaired with the strip foundation, and obtain the global grouting point layout;

[0092] The global grouting points are arranged from the middle to both sides, from weak to strong, and the distance between grouting points is 1 meter; figure 2 shown.

[0093] Step 2. According to the global grouting point layout diagram, the grouting point is punched, and the punching operation is carried out with the grouting arran...

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Abstract

The invention discloses a grouting arrangement structure and method for rapid reinforcement and repair of a strip-shaped foundation, the grouting arrangement structure comprises grouting inner holes formed in the two sides of the center line of the strip-shaped foundation and grouting pipes arranged in the grouting inner holes, the depth of the grouting inner holes is larger than that of the strip-shaped foundation, the grouting inner holes are obliquely arranged, and the grouting pipes are arranged in the grouting inner holes. The distance between the center of the upper surface of the grouting inner hole and the center line of the strip-shaped foundation is L1, the distance between the center of the lower surface of the grouting inner hole and the center line of the original strip-shaped foundation is L2, the depth of the original strip-shaped foundation is H, and the inclination angle of the grouting inner hole is a. Punching operation is conducted on the grouting points; mounting a grouting pipe; high polymer grouting is dynamically detected until conditions are met, and grouting operation is stopped; grouting operation of the next grouting point position is conducted; the method has a good treatment effect on strip-shaped foundation diseases and provides a meaningful reference basis for emergency rescue reinforcement engineering of the strip-shaped foundation diseases.

Description

technical field [0001] The invention relates to the technical field of strip foundation reinforcement and repair, in particular to a grouting arrangement structure and method for rapid reinforcement and repair of strip foundations. Background technique [0002] As a form of building foundation, strip foundation is widely used in low-rise buildings or small high-rise buildings due to its simple construction, low engineering cost and short construction period. When the upper load is large but the bearing capacity of the foundation is low, the foundation soil is uneven and the soil quality changes greatly, the load difference of each column is large, and the column network is small. When the required foundation area of ​​the independent foundation cannot be satisfied, the strip foundation is usually used, and it has the ability to adjust. The effect of uniform settlement. This characteristic has led to the use of strip foundations in a large number of residential buildings in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/12E02D37/00E02D15/02
CPCE02D3/12E02D37/00E02D15/02
Inventor 钟燕辉许胜捷张蓓钟艳梅常守志李晓龙王保林刘文廷
Owner ZHENGZHOU UNIV
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