Environment-friendly high water content cohesive soil solidifying agent and using method thereof

A high water content, cohesive soil technology, applied in the field of geotechnical engineering, can solve the problems of low bearing capacity of high water content cohesive soil foundation, difficult to meet engineering requirements, large foundation settlement and deformation, etc. Simple construction and the effect of improving soil strength

Active Publication Date: 2020-09-04
SINOMA SUZHOU CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under the action of load, the high water content cohesive soil foundation has low bearing capacity, large foundation settlement deformation, and possible uneven settlement. Generally, it is difficult to meet the engineering requirements and needs to be treated before it can be used.

Method used

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  • Environment-friendly high water content cohesive soil solidifying agent and using method thereof
  • Environment-friendly high water content cohesive soil solidifying agent and using method thereof
  • Environment-friendly high water content cohesive soil solidifying agent and using method thereof

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Embodiment

[0028] Embodiment: an environment-friendly high water content cohesive soil curing agent and its use method, the curing agent includes (by weight percentage) polyacrylamide 10% to 30%, triisopropanolamine 5% to 15%, Sodium lignosulfonate 0.1%-1%, sodium bentonite 5%-20%, plant straw 10%-25%, and the balance is water;

[0029] The content of montmorillonite in the sodium bentonite is more than or equal to 85%;

[0030] The plant straw is at least one of rice straw, wheat straw, bamboo fiber and reed straw.

[0031] The using method of described environment-friendly type high water content cohesive soil solidifying agent comprises the following steps:

[0032] Step 1: The project site uses a soil moisture meter to measure the water content in the cohesive soil (the indoor drying method is used to measure the water content in the cohesive soil), and the optimal water content of the cohesive soil is detected by the compaction test, and then according to the formula α=m 钠质膨润土 / m...

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Abstract

The invention discloses an environment-friendly high-water content clayey soil curing agent and a using method thereof. The environment-friendly high-water content clayey soil curing agent comprises the following components in percent by weight: 10-30% of polyacrylamide, 5-15% of triisopropanolamine, 0.1-1% of sodium lignosulfonate, 5-20% of sodium bentonite , 10-25% of plant straw and the balanceof water, wherein the montmorillonite content of the sodium bentonite is greater than or equal to 85%; the plant straw is at least one of rice straw, wheat straw, bamboo fiber and reed stalk. A clayey soil curing method has relatively strong adaptability to all types of clayey soil, and especially the effects of curing soft soil and overwet soil with relatively high water contents are good; the components of the curing agent are non-toxic, environment-friendly, and friendly compatible with the surrounding environment; cured soil can still be recultivated into a farmland, and the environment is affected; the environment-friendly high-water content clayey soil curing agent can be applied to foundation treatment, road engineering, engineering backfilling and the like, and is especially suitable for corresponding engineering in regions with relatively strict environmental requirements.

Description

technical field [0001] The invention belongs to the technical field of geotechnical engineering, and in particular relates to an environment-friendly high water content cohesive soil solidifying agent and a using method thereof. Background technique [0002] my country has a vast territory, diverse topography, complex geological conditions, and various types of soil, especially clayey soil with high water content and rich in organic matter is the most widely distributed. Most of this soil is in a saturated state in its natural state, and has the characteristics of high natural water content, large void ratio, low shear strength, large compressibility coefficient, and high organic matter content. Under the action of load, the high water content cohesive soil foundation has low bearing capacity, large foundation settlement deformation, and possible uneven settlement. Generally, it is difficult to meet the engineering requirements and needs to be treated before it can be used. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/04C09K17/40
CPCC04B26/04C04B2111/00732C04B2201/50C09K17/40C04B24/122C04B24/18C04B18/24C04B14/104
Inventor 乔秋峰陈静王晓军
Owner SINOMA SUZHOU CONSTR
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