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Method for treating miscellaneous fill foundation combing dynamic consolidation and compaction grouting

A technology of compaction grouting and combined treatment, which is applied in soil protection, infrastructure engineering, construction, etc., can solve the problems that cannot guarantee the reinforcement of construction waste and miscellaneous fill foundations, so as to overcome uneven settlement and improve overall stability , the effect of protecting the ecological environment

Inactive Publication Date: 2015-07-01
XINJIANG PETROLEUM ENG CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention provides a method for joint treatment of miscellaneous filling soil foundation by dynamic tamping, compaction and grouting, which overcomes the above-mentioned deficiencies in the prior art, and can effectively solve the problem of only using The problem that the dynamic compaction method or the grouting method cannot guarantee the reinforcement of the miscellaneous fill foundation formed by construction waste

Method used

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  • Method for treating miscellaneous fill foundation combing dynamic consolidation and compaction grouting

Examples

Experimental program
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Effect test

Embodiment 1

[0038] Example 1: as attached figure 1 As shown in the figure, when the distance between the ramming points is rectangular when the ramming point spacing is rectangular, the miscellaneous fill is mainly composed of bricks, concrete blocks and clay. The area is 17500m2. The construction preparations before dynamic compaction include: 1. Design of dynamic compaction: through on-site test compaction, the compaction energy is 400t.m, the distance between compaction points is 4.0m, and the layout is rectangular, such as figure 1 2. The site is compacted twice, and the site is fully compacted once; 2. Site leveling: Before dynamic compaction, use a loader to level the site, and use a grader to level it; , use the total station to locate the ramming point, and mark the ramming point position with lime; 4. Use the ground radar or Rayleigh wave to detect the voids or holes in the soil before the ramming of the site respectively.

[0039] In Example 1, as attached figure 1 Sho...

Embodiment 2

[0044] Example 2: as attached figure 2 As shown in the figure, when the ramming point spacing is triangular in the dynamic compaction, the mixed fill is mainly composed of bricks, concrete blocks and clay. The depth of the building that needs to be filled is 6.0m. The area is 44100m 2 , The construction preparation before dynamic compaction includes: 1. Dynamic compaction design: through field trial compaction, the compaction energy is 400t.m, the distance between compaction points is 4.5m, and the triangular arrangement is adopted, such as figure 2 2. Site leveling: Before dynamic compaction, use a loader to level the site, and use a grader to level it; 3. Positioning and laying out: According to the layout of the compaction point 4. Detection before tamping: Use geological radar and Rayleigh wave to detect the pores or holes in the soil before tamping.

[0045] In Example 2, as attached figure 2 Shown: The dynamic compaction construction includes point compacti...

Embodiment 3

[0050] Example 3: as attached image 3 As shown in the figure, when the ramming point spacing adopts the plum blossom shape, the miscellaneous fill is mainly composed of bricks, concrete blocks and clay. 2 , The construction preparation before dynamic compaction includes: 1. Dynamic compaction design: through on-site test compaction, the compaction energy is 400t.m, the distance between compaction points is 4.5m, and the arrangement is plum-shaped, such as image 3 , ram the site for 2 times, and ram once for full; 2. Leveling the site: use a loader to level the site before dynamic compaction, and use a grader to level it; Coordinates, use the total station to locate the ramming point, and mark the position of the ramming point with lime; 4. Use geological radar or Rayleigh wave to detect the voids or holes in the soil before ramming.

[0051] In Example 3, as attached image 3 Shown: The dynamic compaction construction includes point compaction and full compaction, ...

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Abstract

The invention relates to the technical filed of building foundation treatment, and discloses a method for treating miscellaneous fill foundation combing dynamic consolidation and compaction grouting. The method includes the following steps that firstly, construction of the dynamic consolidation is conducted; secondly, after the dynamic consolidation is completed, hole clearances or holes inside a soil body are detected, and therefore a grouting range is determined; thirdly, the grouting is designed; fourthly, the compaction grouting is conducted. By means of the method, comprehensive reinforcement treatment is conducted on the miscellaneous fill foundation, the advantages of the methods of the dynamic consolidation and the compaction grouting can be taken fully, the hole clearances or holes inside the soil body can be effectively treated, the bearing capacity and overall stability of the foundation can be improved, and therefore the problem that differential settlement of the miscellaneous fill foundation is prone to generating is overcome; in addition, compared with other methods for treating miscellaneous fill soil, the cost is low, the technology is simple and convenient, the implementation effect is good, construction waste can be recycled, and finally the purposes that land resources are saved, and the ecological environment is protected are achieved.

Description

technical field [0001] The invention relates to the technical field of building foundation treatment, and relates to a method for combined treatment of miscellaneous fill soil foundations by dynamic tamping, compaction and grouting. Background technique [0002] With the rapid development of urban construction, a large amount of construction waste is produced. These wastes are concentrated and piled up in remote areas around the city, forming heterogeneous heterogeneous filling soil with different composition of granular materials, different sizes, and diverse engineering properties. On the one hand, these miscellaneous fills occupy more land resources, and on the other hand, they have extremely bad effects on the ecological environment of the city. Therefore, reusing the miscellaneous fill soil formed by construction waste as the foundation of buildings, and carefully handling the relationship between foundation treatment and environmental protection can not only achieve b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/046E02D3/12
Inventor 童云谭振海岳更新杨建强戴立陶付浩田子新常林秦亮
Owner XINJIANG PETROLEUM ENG CONSTR
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