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A method for repairing cracks in earthen ruins

A restoration method and technology for soil sites, applied in building maintenance, soil protection, construction, etc., can solve the problems of dry shrinkage and differentiation, large shrinkage of grouting slurry, and unsatisfactory compatibility and coordination between the slurry stone body and the site soil body, etc. problems, to increase the bonding strength, overcome severe shrinkage and deformation, and improve the effect of repairing

Active Publication Date: 2021-04-13
LANZHOU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of large shrinkage of the grouting fluid when the current conventional method is used to repair the fissures of the ruins, it is easy to produce shrinkage and differentiation with the ruins soil on both sides of the crack after grouting, and the compatibility between the grout stone body and the ruins soil The problem of unsatisfactory coordination, the present invention proposes a method for repairing cracks in earthen ruins

Method used

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  • A method for repairing cracks in earthen ruins
  • A method for repairing cracks in earthen ruins
  • A method for repairing cracks in earthen ruins

Examples

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Effect test

Embodiment 1

[0042] combine figure 2 and image 3As shown, the specific steps for repairing the earthen ruins cracks with a width of 5 to 10 cm by using the method of the present invention are as follows:

[0043] Step S1, moisten the seam. 1.5% SH grout is used to spray and infiltrate the soil 2 on both sides of the crack 1 to be repaired, so as to reinforce the soil 2 on both sides of the crack 1 . Among them, before the joint lubrication, the cracks can be purged and cleaned in advance, such as using a small air compressor to clean the floating soil and soil residue in the cracks, so as to improve the forming quality of the grouting stones in the later stage.

[0044] Step S2, configuring grouting grout. The grouting grout includes SH grout and grouting material, and the SH grout and the grouting material are uniformly stirred and mixed according to a mass ratio of 0.50-0.56. The grouting materials include Cao, F and C, and the mass ratio of CaO:F:C is 3:2:5, where CaO is quicklime...

Embodiment 2

[0053] combine Figure 5 and Figure 6 As shown, the same method as in Example 1 was used to repair the cracks in the earthen ruins with a width of 5-10 cm. The differences include the following two points:

[0054] 1) Step T1 and step T2 are provided before step S1:

[0055] Step T1, opening pile holes. Along the height direction of the fissure 1, a plurality of pile holes 5 are sequentially opened in the fissure 1 of the soil site to be repaired from bottom to top. Wherein, the diameter of the pile hole 5 is 50%-70% of the width of the crack 1, and the distance between adjacent pile holes 5 is twice the diameter of the pile hole 5.

[0056] Step T2, setting the grouting pipe. The outer diameter of the grouting pipe 6 is the same as the diameter of the pile hole 5 , and one end of the grouting pipe 6 extends into the pile hole 5 , and the other end passes through the flat plate 3 to the outside of the crack 1 . In this embodiment, the grouting pipe 6 is a PVC pipe with a...

Embodiment 3

[0066] The same method as in Example 2 was used to repair the cracks in the earth ruins with a width of 5-10 cm. The difference is that when the lime slurry is configured, the volume ratio of quicklime and ruins soil is 9:1.

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Abstract

The invention belongs to the technical field of earth ruins reinforcement, and in particular relates to a method for repairing cracks in earth ruins. In order to solve the problem of repairing the fissures of earthen ruins by the current conventional method, there is a large shrinkage of the grouting slurry, and it is easy to produce shrinkage and differentiation with the ruins soil on both sides of the crack after grouting, and the grout stones and the ruins soil To solve the problem of unsatisfactory compatibility and coordination, the invention discloses a method for repairing fissures in earthen ruins. The specific steps of the method are: step S1, joint moistening; step S2, configuring grouting grout; step S3, mold support grouting; step S4, demoulding and grouting; step S5, making old; It consists of slurry, quicklime, fly ash and local clay. Using the method of the invention to repair the fissures of the earth ruins by grouting can greatly improve the tightness and firmness of the bonding between the grouted stone body and the soil wall surfaces on both sides of the fissure, and obtain a good repairing effect.

Description

technical field [0001] The invention belongs to the technical field of earth ruins reinforcement, and in particular relates to a method for repairing cracks in earth ruins. Background technique [0002] In the arid and semi-arid region of Northwest my country, a large number of earthen sites have been left. As one of the important types of Chinese cultural heritage, these earthen sites have extremely high historical, scientific, artistic and social values. However, due to the limitations of the construction technology at that time and the long-term impact of natural and man-made damage, a series of diseases such as cracks, collapses, and erosions occurred on the earthen site itself, which endangered the mechanical stability, seriously affecting the safe existence of the earthen site. Among them, fissures are the most damaging type of disease to the ruins. The development and development of fissures will lead to instability, deformation and damage of the ruins, and eventually...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04G23/02E02D3/12
CPCE02D3/12E04G23/0203
Inventor 崔凯冯飞于祥鹏王东华汪小海朱鸣基
Owner LANZHOU UNIVERSITY OF TECHNOLOGY