CN112030943A - Method for preparing solidified soil by using soil solidifying agent - Google Patents
Method for preparing solidified soil by using soil solidifying agent Download PDFInfo
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- CN112030943A CN112030943A CN202010947090.0A CN202010947090A CN112030943A CN 112030943 A CN112030943 A CN 112030943A CN 202010947090 A CN202010947090 A CN 202010947090A CN 112030943 A CN112030943 A CN 112030943A
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- soil
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- solidifying agent
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
Abstract
The invention discloses a method for preparing solidified soil by using a soil solidifying agent, which comprises the steps of preparing raw materials and a mould, firstly weighing the prepared soil solidifying agent according to a certain proportion, slowly putting the weighed soil solidifying agent into a beaker with the capacity of 1L, then adding a proper amount of water for stirring, stirring for 10min, after uniformly stirring, diluting the solution to 5-7mol/L to obtain a solution I containing the soil solidifying agent, smearing oil or vaseline on the inner wall of the mould for demoulding, and sealing and maintaining the mould, wherein the temperature is kept at 20-40 ℃ during maintenance and the humidity is kept at 50-70 RH. The invention has the beneficial effects that: the method for preparing the solidified soil by using the soil solidifying agent can meet the requirement of engineering construction development, avoids the degradation problem of pollution, has the advantages of simple process, easy expanded production, no pollution, no harm and the like, has wide raw material source, extremely high commercial performance, can be used for multiple times, has no side effect, and can well meet the market requirements at home and abroad.
Description
Technical Field
The invention relates to the technical field of foundations, in particular to a method for preparing solidified soil by using a soil solidifying agent.
Background
With the rapid development of the construction scale of road infrastructure in China, the traffic volume and heavy-duty vehicles are increasing day by day, and higher requirements are put forward on the service performance of the roadbed and pavement structure of roads of various grades. In order to ensure the quality of highway engineering and reduce the construction cost, the selection of high-efficiency road building materials is very important. The traditional base road material generally adopts natural sand stone materials, gravel materials and the like, however, the resources are less and less, the construction cost is high, and the damage and the pollution to the environment are larger
The existing highway engineering generally adopts traditional soil curing materials such as cement, lime, fly ash and the like, however, the traditional soil curing materials have obvious defects which are mainly shown in the following steps: the strength of the solidified soil is slowly formed, the early strength is low, and the construction progress is influenced; the solidified soil has large drying shrinkage, easy cracking and poor water stability; the solidified soil is limited by soil category
Large, poor curing effect on clay, organic soil and saline soil with high plasticity index, even no curing effect, thereby being difficult to meet the requirement of engineering construction development in Zhejiang province.
Disclosure of Invention
The invention aims to provide a method for preparing solidified soil by using a soil solidifying agent, so as to solve the problems in the background technology.
The purpose of the invention is realized by the following technical scheme: a method for preparing solidified soil by using a soil solidifying agent comprises the following steps:
1) a preparation stage: preparing raw materials and a mould, firstly weighing the prepared soil stabilizer according to a certain proportion, slowly putting the weighed soil stabilizer into a beaker with the capacity of 1L, then adding a proper amount of water for stirring for 10min, and after uniformly stirring, diluting the solution to 5-7mol/L to obtain a solution I containing the soil stabilizer;
2) solidifying soil in the initial stage: firstly stirring the solution I containing the soil stabilizer in the step 1) for 5min to uniformly mix the solution, then putting the prepared soil into a stirrer, then slowly pouring the prepared solution containing the soil stabilizer into the stirrer, keeping the stirring speed at 120-200r/min, adding a small amount of water into the stirrer, and after the solution is uniformly stirred, obtaining a mixture II of the soil stabilizer and the soil in a ratio of 0.1: 1000;
3) in the soil solidification stage: adding the mixture II obtained in the step 2) into the mold in the step 1), meanwhile, continuously adding the solution I containing the soil curing agent obtained in the step 1) into the mold under the condition of keeping a certain concentration, stirring the solution I to be uniform after mixing, and sealing and maintaining the solution to obtain a cured soil unfinished product III;
4) curing the soil finished product: curing the unfinished solidified soil III obtained in the step 3) for 6-8 hours, demolding, then fully drying in a vacuum drying oven at 60 ℃, and drying for 1-2 hours to obtain the finished solidified soil.
The soil stabilizer is a luobang ion soil stabilizer, and the soil stabilizer takes a formaldehyde condensate of sulfonated acetone and polyacrylamide as main organic components
And oil or vaseline is smeared on the inner wall of the mould so as to facilitate demoulding, and the outer wall of the mould is wrapped with an air-permeable and water-impermeable film.
And the sealing and curing step comprises the step of maintaining the temperature at 20-40 ℃ and the humidity at 50-70RH during curing.
The invention has the beneficial effects that: the method for preparing the solidified soil by using the soil solidifying agent has the advantages of simple process, convenient operation, good solidifying effect, difficult cracking, no category limitation of the solidified soil,
the method has the advantages of energy conservation, low cost, less environmental damage and pollution, capability of meeting the requirements of engineering construction development, capability of avoiding the degradation problem of pollution, simple process, easy enlargement of production, no pollution, no harm and the like, wide raw material source, extremely high commercial performance, capability of being used for multiple times, no side effect and capability of well meeting the market demands at home and abroad.
Detailed Description
The following further description is provided in conjunction with the detailed description, but the detailed description below should not be construed as limiting the invention. Various modifications and variations obvious to those skilled in the art, which can be made on the basis of the present invention, should be within the scope of the present invention.
A method for preparing solidified soil by using a soil solidifying agent comprises the following steps:
example 1:
1) a preparation stage: preparing raw materials and a mould, firstly weighing the prepared soil stabilizer according to a certain proportion, slowly putting the weighed soil stabilizer into a beaker with the capacity of 1L, then adding a proper amount of water for stirring for 10min, and after uniformly stirring, diluting the solution to 5-7mol/L to obtain a solution I containing the soil stabilizer;
2) solidifying soil in the initial stage: firstly stirring the solution I containing the soil stabilizer in the step 1) for 5min to uniformly mix the solution, then putting the prepared soil into a stirrer, then slowly pouring the prepared solution containing the soil stabilizer into the stirrer, keeping the stirring speed at 120-200r/min, adding a small amount of water into the stirrer, and after the solution is uniformly stirred, obtaining a mixture II of the soil stabilizer and the soil in a ratio of 0.1: 1000;
3) in the soil solidification stage: adding the mixture II obtained in the step 2) into the mold in the step 1), meanwhile, continuously adding the solution I containing the soil curing agent obtained in the step 1) into the mold under the condition of keeping a certain concentration, stirring the solution I to be uniform after mixing, and sealing and maintaining the solution to obtain a cured soil unfinished product III;
4) curing the soil finished product: curing the unfinished solidified soil III obtained in the step 3) for 6-8 hours, demolding, then fully drying in a vacuum drying oven at 60 ℃, and drying for 1-2 hours to obtain the finished solidified soil.
Example 2:
1) a preparation stage: preparing raw materials and a mould, firstly weighing the prepared soil stabilizer according to a certain proportion, slowly putting the weighed soil stabilizer into a beaker with the capacity of 1L, then adding a proper amount of water for stirring for 20min, and diluting the solution to 4-9mol/L after uniformly stirring to obtain a solution I containing the soil stabilizer;
2) solidifying soil in the initial stage: firstly stirring the solution I containing the soil stabilizer in the step 1) for 15min to uniformly mix the solution, then putting the prepared soil into a stirrer, then slowly pouring the prepared solution containing the soil stabilizer into the stirrer, keeping the stirring speed at 100-200r/min, adding a small amount of water into the stirrer, and after the solution is uniformly stirred, obtaining a mixture II of the soil stabilizer and the soil in a ratio of 0.1: 1000;
3) in the soil solidification stage: adding the mixture II obtained in the step 2) into the mold in the step 1), meanwhile, continuously adding the solution I containing the soil curing agent obtained in the step 1) into the mold under the condition of keeping a certain concentration, stirring the solution I to be uniform after mixing, and sealing and maintaining the solution to obtain a cured soil unfinished product III;
4) curing the soil finished product: curing the unfinished solidified soil III obtained in the step 3) for 5-8 hours, demolding, then fully drying in a vacuum drying oven at 80 ℃, and drying for 1-2 hours to obtain the finished solidified soil.
Example 3:
1) a preparation stage: preparing raw materials and a mould, firstly weighing the prepared soil stabilizer according to a certain proportion, slowly putting the weighed soil stabilizer into a beaker with the capacity of 1L, then adding a proper amount of water for stirring for 10min, and after uniformly stirring, diluting the solution to 5-10mol/L to obtain a solution I containing the soil stabilizer;
2) solidifying soil in the initial stage: firstly stirring the solution I containing the soil curing agent in the step 1) for 5min to uniformly mix the solution, then putting the prepared soil into a stirrer, then slowly pouring the prepared solution containing the soil curing agent into the stirrer, keeping the stirring speed at 150-200r/min, adding a small amount of water into the stirrer, and after the solution is uniformly stirred, obtaining a mixture II of the soil curing agent and the soil in a ratio of 0.01: 10000;
3) in the soil solidification stage: adding the mixture II obtained in the step 2) into the mold in the step 1), meanwhile, continuously adding the solution I containing the soil curing agent obtained in the step 1) into the mold under the condition of keeping a certain concentration, stirring the solution I to be uniform after mixing, and sealing and maintaining the solution to obtain a cured soil unfinished product III;
4) curing the soil finished product: curing the unfinished solidified soil III obtained in the step 3) for 6-hours, demolding, then fully drying in a vacuum drying oven at 60 ℃, and drying for 1-2 hours to obtain the finished solidified soil.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (4)
1. A method for preparing solidified soil by using a soil solidifying agent is characterized by comprising the following steps: the method comprises the following steps:
1) a preparation stage: preparing raw materials and a mould, firstly weighing the prepared soil stabilizer according to a certain proportion, slowly putting the weighed soil stabilizer into a beaker with the capacity of 1L, then adding a proper amount of water for stirring for 10min, and after uniformly stirring, diluting the solution to 5-7mol/L to obtain a solution I containing the soil stabilizer;
2) solidifying soil in the initial stage: firstly stirring the solution I containing the soil stabilizer in the step 1) for 5min to uniformly mix the solution, then putting the prepared soil into a stirrer, then slowly pouring the prepared solution containing the soil stabilizer into the stirrer, keeping the stirring speed at 120-200r/min, adding a small amount of water into the stirrer, and after the solution is uniformly stirred, obtaining a mixture II of the soil stabilizer and the soil in a ratio of 0.1: 1000;
3) in the soil solidification stage: adding the mixture II obtained in the step 2) into the mold in the step 1), meanwhile, continuously adding the solution I containing the soil curing agent obtained in the step 1) into the mold under the condition of keeping a certain concentration, stirring the solution I to be uniform after mixing, and sealing and maintaining the solution to obtain a cured soil unfinished product III;
4) curing the soil finished product: curing the unfinished solidified soil III obtained in the step 3) for 6-8 hours, demolding, then fully drying in a vacuum drying oven at 60 ℃, and drying for 1-2 hours to obtain the finished solidified soil.
2. The method for preparing solidified soil using a soil solidifying agent according to claim 1, wherein: the soil curing agent is a lubang ion soil curing agent, and the soil curing agent utilizes a formaldehyde condensation compound of sulfonated acetone and polyacrylamide as main organic components.
3. The method for preparing solidified soil using a soil solidifying agent according to claim 1, wherein: and oil or vaseline is smeared on the inner wall of the mould so as to facilitate demoulding, and the outer wall of the mould is wrapped with an air-permeable and water-impermeable film.
4. The method for preparing solidified soil using a soil solidifying agent according to claim 1, wherein: and the sealing and curing step comprises the step of maintaining the temperature at 20-40 ℃ and the humidity at 50-70RH during curing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010947090.0A CN112030943A (en) | 2020-09-10 | 2020-09-10 | Method for preparing solidified soil by using soil solidifying agent |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010947090.0A CN112030943A (en) | 2020-09-10 | 2020-09-10 | Method for preparing solidified soil by using soil solidifying agent |
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| CN112030943A true CN112030943A (en) | 2020-12-04 |
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| CN202010947090.0A Withdrawn CN112030943A (en) | 2020-09-10 | 2020-09-10 | Method for preparing solidified soil by using soil solidifying agent |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113102477A (en) * | 2021-03-16 | 2021-07-13 | 江苏亿金环保科技有限公司 | Treatment method of chromium-polluted soil |
-
2020
- 2020-09-10 CN CN202010947090.0A patent/CN112030943A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113102477A (en) * | 2021-03-16 | 2021-07-13 | 江苏亿金环保科技有限公司 | Treatment method of chromium-polluted soil |
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Application publication date: 20201204 |