CN1085283A - Ground impregnating method - Google Patents
Ground impregnating method Download PDFInfo
- Publication number
- CN1085283A CN1085283A CN93116891A CN93116891A CN1085283A CN 1085283 A CN1085283 A CN 1085283A CN 93116891 A CN93116891 A CN 93116891A CN 93116891 A CN93116891 A CN 93116891A CN 1085283 A CN1085283 A CN 1085283A
- Authority
- CN
- China
- Prior art keywords
- silicon dioxide
- dioxide gel
- water glass
- value
- soil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/003—Injection of material
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
In the method for filling of ground according to the present invention, when the silicon dioxide gel that mainly contains acid reaction agent and water glass is injected ground, [the H of this silicon dioxide gel
+]/[SiO
2]
nRatio should be enough to make gelation time when silicon dioxide gel mixes with target floor at about 3 minutes extremely in about 300 minutes scope.
Description
The present invention relates to make the real solid method in ground with silicon dioxide gel perfusion ground, it is 3 to 300 minutes that its gelation time is counted when silicon dioxide gel is injected ground, specifically relates to be suitable for the ground impregnating method on multiple ground.
The gelation time that is in the waterglass mortar commonly used of alkaline range can transfer to longer, therefore waterglass mortar commonly used is not used as solid mortar of moment, in order to improve this step, a kind of new method has been proposed, therein, to comprise acid reaction agent and water glass, and the long silicon dioxide gel of its gelation time neutralizes with the alkali curing agent.Thereby adjusted gelation time.
In this method, the shortcoming that is in the waterglass mortar of alkaline range only has been overcome to a certain extent, but can not make gelation time maintain 3 to 300 minutes quickly and easily, so this problem is still unresolved.
The invention reside in provides a kind of ground impregnating method that uses silicon dioxide gel base mortar, its gelation time can maintain in 3 to 300 minutes the scope, and its permeability is fabulous when the mixing with soil on mortar and ground.In addition, the present invention is devoted to a kind of like this ground impregnating method, and this mortar of wherein main use can contain a kind of gelation accelerator, thereby can keep long gelation time in mortar.
In this silicon dioxide gel base mortar, it is because the pH value of mortar has been adjusted to 3 to 5 scope that gelation time maintains 3 to 300 minutes.Yet, because the essence of this silicon dioxide gel base mortar and based on the neutralization theory of alkali is difficult to regulate the pH value in this scope.
More particularly, because the character of silicon dioxide gel, if its PH is equal to or greater than 3, then the minor variations of reactant quantity can make pH value rise to 5 or greater than 5 immediately, therefore is difficult to keep PH in 3 to 5 scope.
Have found that at acid range, the gelation of silicon dioxide gel is subjected to [H
+]/[S
iO
2]
nRatio (following pleasure is referred to as the X value) control.Therefore, gelation time mainly is subjected to [the H of silicon dioxide gel certainly
+] control, also be subjected to the composition (S of water glass
iO
2And Na
2O) and the influence of concentration, in fact gelation time is decided by the X value.
It has been observed by the present inventors that when the silicon dioxide gel that is in acid range was injected in the soil, the gelation time of silicon dioxide gel itself obviously shortened usually; Clear, the relation of silicon dioxide gel itself and gelation time when silicon dioxide gel is injected into a series of soil from acidic region to basic region, thereby the method for regulating the X value is provided; We have also done a kind of trial, promptly add a kind of gelation accelerator so that gelation time is kept a segment length time in silicon dioxide gel, have so just finished the present invention.
Therefore an object of the present invention is to provide a kind of ground impregnating method, it uses a kind of silicon dioxide gel, it is being injected ground, in about 3 to 300 minutes gelation time, can make ground real solid, thereby the method can be used for multiple soil, and in the method, overcome the shortcoming that above-mentioned art methods had.
According to the present invention, for achieving the above object, provide a kind of ground impregnating method, the method comprises that the silicon dioxide gel that will mainly be made up of acid reaction agent and water glass is injected in the ground, wherein this silicon dioxide gel has [a H
+]/[S
iO
2]
nRatio, this value should be enough so that when silicon dioxide gel mixes with target floor, its gelation time is about 3 minutes to 300 minutes scope, wherein [H
+] represent the hydrogen ion molar concentration (mol) in the silicon dioxide gel; [S
iO
2] represent the S of the water glass in the silicon dioxide gel
iO
2Molar concentration (mol); And n represents the [S of the water glass in the silicon dioxide gel
iO
2]/[Na
2O] molar ratio, the [Na here
2O] represent the Na in the water glass
2The molar concentration of O (mol).
Use above-mentioned the method according to this invention, silicon dioxide gel can about 3 minutes to about 300 minutes gelation time by gelling, this is for being suitable by control X value to obtain well to permeate.
Fig. 1 is the graph of a relation between the gelation time that illustrates after X value and silicon dioxide gel are injected into soil.
To the present invention be described with preferred concrete enforcement and accompanying drawing now.
Have found that, when containing being in the acidic region silicon dioxide gel and mixing mutually with the soil with various different PH shown in the table 1 of acid reaction agent and water glass, the X value of used silicon dioxide gel and gelatine time relation present rough general picture (measure temperature and be about 20 ℃) as shown in Figure 1.
Table 1
Embodiment soil types pH value
1 clay 7.6
2 clays (containing organic substance) 9.4
3 clays (containing the shell layer) 9.0
4 Kanto fertile soil (1) 5.1
5 Kanto fertile soil (2) 6.4
Curve A among Fig. 1 has shown the rough relation between acid silicon dioxide sol itself and the gelation time.If silicon dioxide gel mixes mutually with every kind of soil in the table 1, then gelation time all obviously reduces in each case, and this depends on the pH value of soil, and particularly when silicon dioxide gel mixed with alkaline soil, gelation time was reduced to more.
In Fig. 1, when the various mixing with soil in silicon dioxide gel and the table 1, the gelation time that records is represented with various marks: promptly " ● " represents sample 1(clay), " zero " expression sample 2(contains the clay of organic material), the conchiferous clay of " * " expression sample 3(), " △ " represents sample 4(Kanto fertile soil (1)), and " ▲ " expression sample 5(Kanto fertile soil (2)).
As shown in table 1, the most of soils pH value is about 5 to about 9.5 scope, and for the soil with identical PH, gelation time may not only depend on the pH value of soil, and it can change, and this depends on the content of each component and water in the soil.
As shown in Figure 1, under any circumstance all can suppose, the required gelation time of the gelation of silicon dioxide gel has been shortened greatly in the soil, and falls into Fig. 1 straight line B(and be suitable for pH value and approximate 5 soil) and Fig. 1 straight line C(be suitable for pH value and approximate 9.5 soil) between.
Therefore, for guarantee gelation time in soil at about 3 minutes to about 300 minutes scope, a kind of silicon dioxide gel can be injected in the soil of target floor, make so that its X value is in the scope of the straight line B of Fig. 1 and the oblique line district representative between the C and this colloidal sol carries out fusion with each component.
Should be noted that the X value can be by the agent of fusion acid reaction, water glass and gelation accelerator and regulated.In addition, can use and contain acid reaction agent and water glass, silicon dioxide gel with suitable X value is as A liquid, and gelation accelerator can be added in the A liquid, thereby make the gelation time of resulting mixture maintain from shorter gelation time in broad range than the long gel time.
It is believed that, contain in the soil dissolving or join wherein each kind of inorganic matter and organic matter, and think the silicon dioxide gel that is in acidic region because its low viscosity, its can be gone in the soil by rapid permeability, thereby it and these soil constitutions react, and at first cause [H
+Reduction, thereby cause that the X value descends, gelation time is shortened.Certainly, the degree of shortening is subjected to soil physical, and particularly the X value of the pH value of soil and silicon dioxide gel is controlled.The available gelation accelerator of the X value of silicon dioxide gel is regulated, thereby gelation time is maintained from shorter gelation time to the broad range than the long gel time.
Come more detailed description the present invention with embodiment now.
Material therefor
(1) water glass
Available any water glass to be regulating X value, but what be used as common water glass is No. 3 water glass with following composition and performance.
Na
2O：9.45%，S
iO
2：28.36%
Proportion: 1.399 molar ratios: 3.10
(2) acid reaction agent
Use 75% industrial sulphuric acid
(3) gelation accelerator
Various bases, water glass, cement etc. all can use, but have used above-mentioned water glass in one embodiment, industrial hydrogen magnesia and technical calcium carbonate.
Embodiment 1
Preparation has the silicon dioxide gel of following prescription:
Water glass 270ml
Acid reaction agent 57ml
Water 673ml
Total amount 1,000ml
The pH value of this silicon dioxde solution is through being measured as 1.2, and the X value is about 1.05 * 10
-2, and the gelation time 20 ℃ the time is about 7000 minutes.With this silicon dioxide gel and 1,2, each in No. 4 samples is mixed, thereby produces gelation time as shown in table 2.
Table 2
P in soil H value gelation time (minute)
No. 1 7.6 35-40 in the table 1
No. 2 9.4 22-24 in the table 2
No. 4 5.1 100-120 in the table 2
If with a kind of acidity and show that in aforesaid way the silicon dioxide gel than the long gel time is injected in a kind of soil, according to soil and different, can shorten to sizable degree to gelation time, also can this time be adjusted to desirable value according to the X value.
Embodiment 2
Preparation wherein contains the silicon dioxide gel of magnesium hydroxide as the following prescription of gelation accelerator.
Water glass 270ml
Acid reaction agent 57ml
Magnesium hydroxide 4g
Water 671ml
Total amount 1,000ml
The pH value of this silicon dioxide gel is 2.5, and the X value is about 5.2 * 10
-4, and gelation time is about 800 to 900 minutes, this silicon dioxide gel mixes with No. 4 pedotheque in the table 1, and gelling in about 20 minutes.In this mode, by adding gelation accelerator the X value is reduced, can shorten to about 20 minutes to gelation time, and gelation time is 100 to 120 minutes in embodiment 1.
Embodiment 3
For among the displacement embodiment 2 as the magnesium hydroxide of gelation accelerator, add 6g calcium carbonate with the preparation silicon dioxide gel.No. 4 pedotheque of this silicon dioxide gel and table 1 mixes then, and after about 30 minutes gelling takes place.
Embodiment 4
As solution A, 100ml15% volumetric concentration sodium silicate solution is as solution B the silicon dioxide gel among the 200ml embodiment 1.Solution A and B are mixed with each other, and this moment, pH value was 6.0, and this mixture after about 10 minutes gelling is taken place at 20 ℃.
Embodiment 5
The injection of the silicon dioxide gel of embodiment 1 is contained housing and takes from the soil (its pH value is 8.8) in Tokyo Bay, and in this case, silicon dioxide gel infiltrates through in the soil satisfactorily, and becomes solid gel in about 25 to 30 minutes.
Claims (3)
1, a kind of ground method for filling, it comprises that the silicon dioxide gel that will mainly be made up of acid reaction agent and water glass is injected in the ground, wherein this silicon dioxide gel has [a H
+]/[SiO
2]
nRatio, this value should be enough to make that when silicon dioxide gel mixes with target floor its gelation time is about 3 minutes extremely about 300 minutes scope, wherein [H
+] represent the hydrogen ion molar concentration (mol) in the silicon dioxide gel; [SiO
2] represent the SiO of the water glass in the silicon dioxide gel
2Molar concentration (mol); And n represents the [SiO of the water glass in the silicon dioxide gel
2]/[Na
2O] molar ratio, the [Na here
2O] represent the Na in the water glass
2The molar concentration of O (mol).
2, according to the ground method for filling of claim 1, wherein, this silicon dioxide gel contains the acid reaction agent, water glass and gelation accelerator.
3, according to the ground method for filling of claim 1, wherein, this silicon dioxide gel contains the gelation accelerator of being added.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4217488A JP2973149B2 (en) | 1992-07-24 | 1992-07-24 | Ground injection method |
| JP217488/92 | 1992-07-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1085283A true CN1085283A (en) | 1994-04-13 |
| CN1043262C CN1043262C (en) | 1999-05-05 |
Family
ID=16705027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93116891A Expired - Fee Related CN1043262C (en) | 1992-07-24 | 1993-07-24 | Ground impregnating method |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2973149B2 (en) |
| KR (1) | KR0167746B1 (en) |
| CN (1) | CN1043262C (en) |
| TW (1) | TW218403B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104846806A (en) * | 2015-04-01 | 2015-08-19 | 同济大学 | Sand liquefaction prevention and control method based on nano-scale layered silicate materials |
| CN106935988A (en) * | 2017-02-17 | 2017-07-07 | 深圳市伊莱克科技有限公司 | A kind of Environment-friendlywater-soluble water-soluble grounded resistance reducing agent and its application method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005194463A (en) * | 2004-01-09 | 2005-07-21 | Tokuyama Corp | Method for preparing aqueous non-alkaline silicic acid solution for grouting chemical |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55164286A (en) * | 1979-06-11 | 1980-12-20 | Sanshin Kensetsu Kogyo Kk | Chemical grouting method of construction |
| JPS59124985A (en) * | 1982-12-31 | 1984-07-19 | Kyokado Eng Co Ltd | Pouring grout into ground |
| JPS60252685A (en) * | 1984-05-29 | 1985-12-13 | Kouen Shoji Kk | Composite impregnation method |
| JPS61211418A (en) * | 1985-03-15 | 1986-09-19 | Shigeharu Arima | Chemical solution pouring method |
| FR2641806B1 (en) * | 1989-01-16 | 1992-05-07 | Diffusion Rech Tech Financ | METHOD FOR STABILIZING A FURNISHED LAND AREA |
| CN1055568A (en) * | 1990-04-12 | 1991-10-23 | 铁道部隧道工程局科学研究所 | Acid water-glass pulp for fine sand stratum |
-
1992
- 1992-07-24 JP JP4217488A patent/JP2973149B2/en not_active Expired - Lifetime
- 1992-09-26 TW TW081107654A patent/TW218403B/en not_active IP Right Cessation
-
1993
- 1993-07-23 KR KR1019930013977A patent/KR0167746B1/en not_active IP Right Cessation
- 1993-07-24 CN CN93116891A patent/CN1043262C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104846806A (en) * | 2015-04-01 | 2015-08-19 | 同济大学 | Sand liquefaction prevention and control method based on nano-scale layered silicate materials |
| CN104846806B (en) * | 2015-04-01 | 2016-07-13 | 同济大学 | A kind of sand liquefaction prevention and controls based on nanoscale layered silicate material |
| CN106935988A (en) * | 2017-02-17 | 2017-07-07 | 深圳市伊莱克科技有限公司 | A kind of Environment-friendlywater-soluble water-soluble grounded resistance reducing agent and its application method |
| CN106935988B (en) * | 2017-02-17 | 2019-04-05 | 深圳市伊莱克科技有限公司 | A kind of application method of Environment-friendlywater-soluble water-soluble grounded resistance reducing agent |
Also Published As
| Publication number | Publication date |
|---|---|
| KR0167746B1 (en) | 1999-02-18 |
| TW218403B (en) | 1994-01-01 |
| JP2973149B2 (en) | 1999-11-08 |
| JPH0649837A (en) | 1994-02-22 |
| CN1043262C (en) | 1999-05-05 |
| KR940005857A (en) | 1994-03-22 |
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| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |