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Solidification treatment method of mucky soil

A solidification treatment, silty soil technology, applied in soil protection, construction, infrastructure engineering, etc., can solve the problems of solidification reaction into biodestruction, large soil structure damage, strong cation exchange capacity, etc., to achieve good economy And strength benefits, high early strength, good frost resistance

Inactive Publication Date: 2017-06-30
ZHEJIANG PROVINCIAL INST OF COMM PLANNING DESIGN & RES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In terms of impact on soil structure, since humic acid is an amorphous gel, it has a greater damage to soil structure, while fulvic acid has similar elemental composition and molecular structure to humic acid, but its main features are The cation exchange capacity is strong, and the acidity is slightly weak, so it plays a great role in the decomposition of minerals, and has a destructive effect on the solidification reaction of the soil into organisms, which seriously affects the strength of the solidified soil.

Method used

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  • Solidification treatment method of mucky soil
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  • Solidification treatment method of mucky soil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Take the silty soil sample numbered 1, before the test, remove the impurities in the soil sample, weigh 600g of the soil sample, and bring it into the formula (1) according to the converted code value in Table 3, and the formula (1) is simplified as Y= 1290.77+124.72X 3 +9.92X 3 2 Add different amounts of curing agent according to the proportioning ratio (the weight percentage of each component is: cement 46%, slag 34%, fly ash 15%, triethanolamine 5%), when the curing agent dosage changes from 6% to 12% , stir the mixture well to make 3 Parallel cylinder specimens, standard curing 28 days. The strength values ​​of the solidified soil are shown in Table 4:

[0043] Table 4 Comparison of predicted strength of soil sample 1 quantitative model and measured strength

[0044]

[0045]

Embodiment 2

[0047] Take the silty soil sample numbered 2, before the test, remove the impurities in the soil sample, weigh 600g of the soil sample, and bring it into the formula (1) according to the converted code value in Table 3, and the formula (1) is simplified as Y= 1270.48+122.26X 3 +9.92X 3 2 Add different amounts of curing agent according to the proportioning ratio (the weight percentage of each component is: cement 46%, slag 34%, fly ash 15%, triethanolamine 5%), when the curing agent dosage changes from 6% to 12% , stir the mixture well to make 3 Parallel cylinder specimens, standard curing 28 days. The strength values ​​of the solidified soil are shown in Table 5:

[0048] Table 5 Comparison of predicted strength of soil sample 2 quantitative model and measured strength

[0049]

Embodiment 3

[0051] Take the silty soil sample numbered 3, before the test, remove the impurities in the soil sample, weigh 600g of the soil sample, and bring it into the formula (1) according to the converted code value in Table 3, and the formula (1) is simplified as Y= 1236.57+118.96X 3 +9.92X 3 2 Add different amounts of curing agent according to the proportioning ratio (the weight percentage of each component is: cement 46%, slag 34%, fly ash 15%, triethanolamine 5%), when the curing agent dosage changes from 6% to 12% , stir the mixture well to make 3 Parallel cylinder specimens, standard curing 28 days. The strength values ​​of the solidified soil are shown in Table 6:

[0052] Table 6 Comparison of predicted strength of soil sample 3 with quantitative model and measured strength

[0053]

[0054]

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Abstract

The invention discloses a solidification treatment method for silty soil, which includes detecting the initial organic matter content and initial water content of the soil, combining the unconfined compressive strength required by the actual project, and determining the amount of curing agent according to the quantitative model. Add the curing agent in this dosage to cure the muddy soil. The present invention uses the muddy soil composite curing agent as the curing basis, and on the basis of the quantitative model, adjusts the addition ratio of the curing agent according to the initial organic matter content and initial water content of the soil, so as to achieve the best economic and strength benefits.

Description

technical field [0001] The invention belongs to the technical field of civil engineering, and in particular relates to a solidification treatment method for silty soil. Background technique [0002] At present, there are hundreds of curing agents on the market. These curing agents are often developed for a certain soil to be treated. During the research process, the properties of the soil to be treated (such as organic matter content and water content) are fixed. However, in engineering applications, because the ground or tidal flats to be treated are relatively scattered, or the span is relatively large, and the organic matter content and water content of the soil have large changes, then engineers generally use past experience to adjust the curing agent. There is no quantitative model to refer to. The present invention aims to provide a quantitative model, and according to the model, the amount of curing agent can be quantitatively adjusted by measuring the organic matter...

Claims

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Application Information

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IPC IPC(8): E02D3/12C04B28/00
CPCE02D3/12C04B28/00C04B18/141C04B18/08C04B24/122
Inventor 陆建阳严磬姜正晖王黎明俞帆
Owner ZHEJIANG PROVINCIAL INST OF COMM PLANNING DESIGN & RES CO LTD
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