CN106433679A - Acid-resistant shield foaming agent - Google Patents
Acid-resistant shield foaming agent Download PDFInfo
- Publication number
- CN106433679A CN106433679A CN201610882451.1A CN201610882451A CN106433679A CN 106433679 A CN106433679 A CN 106433679A CN 201610882451 A CN201610882451 A CN 201610882451A CN 106433679 A CN106433679 A CN 106433679A
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- China
- Prior art keywords
- foam
- earth pressure
- foaming agent
- acid
- pressure balance
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2103/00—Civil engineering use
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses an earth pressure balance type shield foaming agent. The foaming agent comprises the following components by weight percent: 2.5-10.0% of fatty alcohol polyoxyethylene ether (AEO-9), 2.0-8.0% of alkyl glucoside (APG), 2-6.5% of dodecyl betaine, 1.0-3.0% of polyethylene glycol (PEG4000), 2-4.5% of ammonium sulfate and 32.0-90.5% of water. Through the earth pressure balance type shield foaming agent disclosed by the invention, high-rate foaming can be realized even in an acid condition, and the generated foam is fine while the stabilization time is long; and the product can perfectly meet the requirements of modified acid residue soil in a tunneling process of an earth pressure balance shield machine.
Description
Technical field
The invention belongs to field of material technology, the present invention relates to one kind shield machine with soil pressure balance for construction use in acid condition
Foam.
Technical background
Chinese Metro Construction fast development at present, constructing metro tunnel often uses Earth Pressure Balance Shield Technology, this
The key of one technology is intended to the soil body and keeps Plastic Flow state, typically injects certain foam into shield machine in construction
The soil body is improved.Because soil is a complicated system, wherein there is various chemistry and biochemical reaction, thus
Soil is made to show different Acidity of Aikalinitys.Mostly in the range of 4.5～8.5, pH value is incremented by China's soil pH from south to north, the Changjiang river
Soil on the south (33 ° of north latitude) mostly is acid and highly acid, the such as widely distributed red soil in south China, southwest, yellow earth, and pH value is big
How between 4.5～5.5；The red soil of Central China East China, pH value is between 5.5～6.5；And can make in construction neutral and acidic soil
Foam becomes unstable, and then makes the soil body lose Plastic Flow state, leads to shield machine " inaccessible ", silt " is gushed ", soil
The technical barriers such as body " molding ".
Content of the invention
It is an object of the invention to provide a kind of special foam of balancing earth-pressure shielding machine, product can meet soil pressure well
The requirement of acid dregs is improved in balance shield machine tunneling process.Produced foam also can keep good in acid condition
Frothing percentage and half-life.
The earth pressure balanced shield of the present invention with foam its count by weight percentage, be made up of following component：
The dilute ether of poly alkyl alcohol epoxy second（AEO-9）2.5～10.0%,
Alkyl-glucoside (APG) 2.0～8.0%,
Empgen BB 2～6. 5%,
Polyethylene Glycol (PEG4000) 1.0～3.0%,
Ammonium sulfate 2～4.5%,
Water 32.0～90.5%.
At normal temperatures each component mixing and stirring being made outward appearance is colourless or the water-soluble liquid of pale yellow transparent.
In above-mentioned earth pressure balanced shield foam：
The dilute ether of poly alkyl alcohol epoxy second（AEO-9）It is natural fatty alcohol and ethylene oxide adduct.It is that a kind of non-ionic surface is lived
Property agent, uniform frothing capacity, can make with various aniones, cation, nonionic surfactant and other auxiliary combinations
With, thus obtaining cooperative effect and premium quality product. good biological degradability, environmental friendliness, the low irritant to skin,
All more stable to acid, aqueous slkali and hard water.
Alkyl-glucoside (APG) is a kind of more comprehensive nonionic surfactant of performance, and surface tension is low, no turbid
Point, foaming abundancy are fine and smooth, compatibility is strong, nontoxic, harmless, non-stimulated to skin, and biodegradation is thorough rapidly, can be with any types
Surfactant compound, cooperative effect is obvious.There is stronger broad spectrum antibiotic activity, and resistance to highly basic, resistance to strong acid, resistance to hard water,
Salt-resistance is strong.
Empgen BB is a kind of zwitterionic surfactant, and foam is fine and smooth abundant, can be with all kinds surface
Active ingredient, this product is respectively provided with excellent stability under acidity and alkalescence condition.
Polyethylene Glycol (PEG4000) has significant thickening, foam stability energy, can extend under conditions of acidity is relatively strong
The stabilization time of foam；
Ammonium sulfate has stronger buffer capacity, matches with other surfaces activating agent simultaneously, significantly improve the viscosity of system it is ensured that
Foam also has good stability in acid condition.
Compared with prior art, foam of the present invention has the characteristics that：
Earth pressure balanced shield of the present invention is high with foamable composition rate, and foaming abundancy is fine and smooth, is evenly distributed, produced crafters
Gap is little, also has excellent lubricity and stability in acid condition, and its indices all can meet earth pressure balance well
Improve the requirement of dregs during formula shield, the water penetration of acid dregs can be reduced, the frictional property of the soil body can be reduced simultaneously,
Reduce the abrasion of cutter, Plastic flow of soil mobility in the native storehouse of adjustment, the acidity in earth pressure balanced shield, EPBS method tunneling process, after cutting
Dregs has good plastic fluidity, and the flat street of soil pressure of the present invention formula shield foaming agent indices all can meet shield-tunneling construction
Require, reach advanced world standards, the demand to soil improvement for China's shield machine with soil pressure balance for construction can be met.
Specific embodiment
For describing the various effective ingredient compositions of the present invention in detail, with reference to specific embodiment, the present invention is made further
Detailed description.
Embodiment 1
Prepare earth pressure balanced shield foam 100g, each constituent content is：
The dilute ether of poly alkyl alcohol epoxy second（AEO-9）7g,
Alkyl-glucoside (APG) 8g,
Empgen BB 3g,
Polyethylene Glycol (PEG4000) 1.5g,
Ammonium sulfate 3.5g,
Water 77g.
At normal temperatures each component mixing and stirring is made the water-soluble liquid that outward appearance is pale yellow transparent.
Embodiment 2
Prepare earth pressure balanced shield foam 100g, each constituent content is：
The dilute ether of poly alkyl alcohol epoxy second（AEO-9）8g,
Alkyl-glucoside (APG) 7g,
Empgen BB 4g,
Polyethylene Glycol (PEG4000) 2g,
Ammonium sulfate 2g,
Water 77g.
At normal temperatures each component mixing and stirring is made the water-soluble liquid that outward appearance is pale yellow transparent.
Embodiment 3
Prepare earth pressure balanced shield foam 100g, each constituent content is：
The dilute ether of poly alkyl alcohol epoxy second（AEO-9）6g,
Alkyl-glucoside (APG) 7g,
Empgen BB 4g,
Polyethylene Glycol (PEG4000) 2.5g,
Ammonium sulfate 3.5g,
Water 77g.
At normal temperatures each component mixing and stirring is made the water-soluble liquid that outward appearance is pale yellow transparent.
Embodiment 4
Prepare earth pressure balanced shield foam 100g, each constituent content is：
The dilute ether of poly alkyl alcohol epoxy second（AEO-9）8g,
Alkyl-glucoside (APG) 4g,
Empgen BB 6.5g,
Polyethylene Glycol (PEG4000) 2g,
Ammonium sulfate 2.5g,
Water 77g.
At normal temperatures each component mixing and stirring being made outward appearance is water white water-soluble liquid.
Embodiment 5
The testing performance index of earth pressure balanced shield foam
The foam having configured is divided into 5 groups, every group three parts, the 1st group to the 4th group corresponds to the embodiment of the present invention 1 respectively and arrive enforcement
Example 4, the 5th group is comparative example（Domestic foam is purchased from Beijing Shang Wei Ke Lin science and trade Co., Ltd）, and label respectively.Will be each
Organize the dilution proportion that the hydrochloric acid weak solution that sample pH is 4.5 is by 4%, respectively with indoor foam device foaming, adjust the dress that foams
Put, obtain required foam, and make this state keep stable.
1st, frothing percentage experiment
Frothing percentage refers to the ratio of foam volume that the foam agent solution of certain volume sent and foam agent solution, i.e. every volume
The volume of the foam that foam agent solution is sent.
After foam device keeps stablizing foamed state, the initial volume of record foam agent solution, with measuring cup with a scale
Accept the foam sending, fill the termination volume recording foam agent solution after measuring cup with foam.Arrange experimental result data, make even
Average.
Experimental result is as shown in Table 1：
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Comparative example | |
| Foam volume Vm（mL） | 2000 | 2000 | 2000 | 2000 | 2000 |
| Foam liquor capacity Vl（mL） | 157 | 162 | 173 | 175 | 206 |
| Frothing percentage | 12.7 | 12.3 | 11.5 | 11.4 | 9.71 |
Table one foamable composition rate compares
As can be seen from Table I, the foamable composition rate of the embodiment of the present invention 1 ~ 4 is above domestic foam, illustrates in acidity
Under the conditions of, the foamable composition performance of the present invention is better than comparative sample.
2nd, stability experiment
The stability of foam can be weighed with the half-life of foam, and half foam life period refers to：By the liquid bulk discharged in foam
Amass the time needed for half of whole liquid volumes during discharge opeing non-for foam.
After measured, the half-life of foam is as shown in Table 2
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Comparative example | |
| Half-life | 9 points 36 seconds | 9 points 43 seconds | 9 points 05 second | 9 points 22 seconds | 3 points 10 seconds |
The table two foam half-life compares
As can be seen from Table II, the half-life of the foam generation foam of the embodiment of the present invention 1 ~ 4 is all longer than domestic foam
, illustrate in acid condition, the foam of the present invention generates foam stability and is better than comparative sample.
Protection scope of the present invention is not limited to above embodiment, and any those of ordinary skill in the art are at this
After bright disclosure, change of component or replacement can be carried out easily, these all should be covered within the scope of the present invention.So,
Protection scope of the present invention should be defined by the protection atmosphere of claims.
Claims (1)
1. a kind of acid resistance earth pressure balanced shield foam is it is characterised in that be made up of following component by weight percentage：
The dilute ether of poly alkyl alcohol epoxy second（AEO-9）：2.5～10.0%,
Alkyl-glucoside (APG)：2.0～8.0%,
Empgen BB：2～6. 5%,
Polyethylene Glycol (PEG4000)：1.0～3.0%,
Ammonium sulfate：2～4.5%,
Water：32.0～90.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610882451.1A CN106433679B (en) | 2016-10-10 | 2016-10-10 | Acid resistance shield foaming agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610882451.1A CN106433679B (en) | 2016-10-10 | 2016-10-10 | Acid resistance shield foaming agent |
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| Publication Number | Publication Date |
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| CN106433679A true CN106433679A (en) | 2017-02-22 |
| CN106433679B CN106433679B (en) | 2019-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610882451.1A Active CN106433679B (en) | 2016-10-10 | 2016-10-10 | Acid resistance shield foaming agent |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108070383A (en) * | 2017-12-22 | 2018-05-25 | 新乡市恒星科技有限责任公司 | A kind of foam stabilizing persistent form Soil pressure balance shield foam agent and preparation method thereof |
| CN108865159A (en) * | 2018-06-22 | 2018-11-23 | 湖北工程学院 | Acid resistance shield foaming agent and its preparation method and application |
| IT201800007438A1 (en) * | 2018-07-23 | 2020-01-23 | LOW ECOTOXICOLOGICAL IMPACT FOAMING ADDITIVE FOR THE CONDITIONING OF THE SOIL IN THE PRESENCE OF MECHANIZED EXCAVATION | |
| CN111154497A (en) * | 2020-02-19 | 2020-05-15 | 济南重工股份有限公司 | Production device and method of shield tunneling machine foaming agent |
| CN113337294A (en) * | 2021-06-24 | 2021-09-03 | 中铁六局集团有限公司 | Foaming agent for calcium and magnesium ion resistant earth pressure balance shield and preparation method thereof |
| CN114015448A (en) * | 2021-11-23 | 2022-02-08 | 福州大学 | Foaming agent for improving muck of shield of cohesive soil layer, preparation method and use method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103864334A (en) * | 2014-02-12 | 2014-06-18 | 东莞市明洁隧道建设材料有限公司 | Environment-friendly foaming agent for earth pressure balance shield tunneling machine |
| CN103964726A (en) * | 2013-01-24 | 2014-08-06 | 北京交通大学 | Foaming agent for earth pressure balance shield |
| CN104946263A (en) * | 2015-04-02 | 2015-09-30 | 厦门诺恩斯科技有限公司 | Earth pressure balance shield foaming agent |
| CN105198269A (en) * | 2015-09-01 | 2015-12-30 | 北京铁五院工程机械有限公司 | Foaming agent for low temperature-resistant soil pressure balance shield, and preparation method and application of foaming agent |
| CN105295933A (en) * | 2015-11-24 | 2016-02-03 | 上海三瑞高分子材料股份有限公司 | Soil modifier for earth pressure balance shield |
-
2016
- 2016-10-10 CN CN201610882451.1A patent/CN106433679B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103964726A (en) * | 2013-01-24 | 2014-08-06 | 北京交通大学 | Foaming agent for earth pressure balance shield |
| CN103864334A (en) * | 2014-02-12 | 2014-06-18 | 东莞市明洁隧道建设材料有限公司 | Environment-friendly foaming agent for earth pressure balance shield tunneling machine |
| CN104946263A (en) * | 2015-04-02 | 2015-09-30 | 厦门诺恩斯科技有限公司 | Earth pressure balance shield foaming agent |
| CN105198269A (en) * | 2015-09-01 | 2015-12-30 | 北京铁五院工程机械有限公司 | Foaming agent for low temperature-resistant soil pressure balance shield, and preparation method and application of foaming agent |
| CN105295933A (en) * | 2015-11-24 | 2016-02-03 | 上海三瑞高分子材料股份有限公司 | Soil modifier for earth pressure balance shield |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108070383A (en) * | 2017-12-22 | 2018-05-25 | 新乡市恒星科技有限责任公司 | A kind of foam stabilizing persistent form Soil pressure balance shield foam agent and preparation method thereof |
| CN108865159A (en) * | 2018-06-22 | 2018-11-23 | 湖北工程学院 | Acid resistance shield foaming agent and its preparation method and application |
| IT201800007438A1 (en) * | 2018-07-23 | 2020-01-23 | LOW ECOTOXICOLOGICAL IMPACT FOAMING ADDITIVE FOR THE CONDITIONING OF THE SOIL IN THE PRESENCE OF MECHANIZED EXCAVATION | |
| WO2020021445A1 (en) * | 2018-07-23 | 2020-01-30 | Mapei Spa | Foaming additive with low ecotoxicological impact for soil conditioning in the presence of mechanised excavation |
| US11697768B2 (en) | 2018-07-23 | 2023-07-11 | Mapei Spa | Foaming additive with low ecotoxicological impact for soil conditioning in the presence of mechanised excavation |
| CN111154497A (en) * | 2020-02-19 | 2020-05-15 | 济南重工股份有限公司 | Production device and method of shield tunneling machine foaming agent |
| CN113337294A (en) * | 2021-06-24 | 2021-09-03 | 中铁六局集团有限公司 | Foaming agent for calcium and magnesium ion resistant earth pressure balance shield and preparation method thereof |
| CN114015448A (en) * | 2021-11-23 | 2022-02-08 | 福州大学 | Foaming agent for improving muck of shield of cohesive soil layer, preparation method and use method |
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| Publication number | Publication date |
|---|---|
| CN106433679B (en) | 2019-07-09 |
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