CN106190136A - A kind of shield machine foam - Google Patents
A kind of shield machine foam Download PDFInfo
- Publication number
- CN106190136A CN106190136A CN201510208812.XA CN201510208812A CN106190136A CN 106190136 A CN106190136 A CN 106190136A CN 201510208812 A CN201510208812 A CN 201510208812A CN 106190136 A CN106190136 A CN 106190136A
- Authority
- CN
- China
- Prior art keywords
- foam
- shield machine
- sodium
- reduce
- lauryl sulphate
- 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.)
- Pending
Links
Abstract
The invention belongs to foam technical field, particularly relate to a kind of shield machine foam, the requirement to foam can not be fully met in shield-tunneling construction for solving the properties such as current domestic foam foam uniformity, stability, lubricity and permeability, and adaptability has certain restriction, provide a kind of shield machine foam, sodium lauryl sulphate, polyoxyethylenated alcohol sodium sulfate, α-sodium olefin sulfonate, modified silicone resin polyethers emulsion, water are prepared from by a certain percentage.Foam of the present invention improves the service behaviour of soil, makes Zinc fractions plastic deformation, to provide the support pressure of uniform, controllable to make face stabilizer；Reduce seepage, strengthen the sealing of work surface；Reduce internal friction, reduce soil in cutterhead, transporter, the abrasion of conveyer belt, reduction energy consumption；Reduce the viscosity of the soil body, prevent blocking from occurring；Suppression dust effect is played in ground tunnel and mine construction.
Description
Technical field
The invention belongs to foam technical field, be specifically related to a kind of shield machine foam.
Background technology
Metro Tunnel all uses a kind of plant equipment being shield machine to excavate in recent years, the shield machine type applied at present is mainly earth pressure balance shield machine, being characterized in the medium stable as supporting excavation face with the dregs excavated out, it is little that this requires have good plastic deformation, soft denseness and permeability as the dregs of Supporting Media.Owing to general soil can not fully meet these characteristics, so to improve, it is characterized in that injecting the mixing such as foam in cutter head of shield machine front portion and clay bin adds material, through strong stirring, improve the plasticity of dregs of excavation, mobility, reduce the water penetration of dregs.This foam is to be produced by a kind of shield special foam foaming system on shield machine.At present, the foam of domestic subway shield tunnel construction is mainly from external import, and its production cost and freight are big, and price is high, it is difficult to use in a large number in tunneling shield is constructed.And the foam of domestic production, formula usually in accordance with other geotechnique field foam such as foam concrete, air bubble mix light-textured soil, conventional washing raw material is used to modulate out, the properties relatively imported products such as its foam uniformity, stability, lubricity and permeability also have a certain distance, and adaptability has certain restriction.Domestic on foam formulation research few, be the most all to use anion surfactant and nonionic surfactant to compound, be aided with auxiliary agent, use orthogonal method to configure.
In recent years, domestic Duo Suo R&D institution has all carried out the research of foamed glue, but most research direction is sand-pebble layer or the stratum in grit, study less for hard plastic, the soft foam moulded in expansive clay, the foam used in this type of stratum is imported product, expensive, construction cost is high.
Anion surfactant have preferable decontamination, foam, disperse, emulsifying, the characteristic such as moistening；It is widely used as detergent, foaming agent, wetting agent, emulsifying agent and dispersant；Yield accounts for the first place of surfactant, cheap, easily obtains, and has preferable condition and economy in order to configure foam.
Summary of the invention
The present invention is to solve that the properties such as current domestic foam foam uniformity, stability, lubricity and permeability can not fully meet the requirement in shield-tunneling construction to foam, and adaptability has certain restriction, it is provided that a kind of shield machine foam.
The present invention is realized by following technical scheme: a kind of shield machine foam, by the raw material of following masses percentage ratio under 30 ~ 50 DEG C of water temperatures mixing and stirring and make: sodium lauryl sulphate 4%-6%, polyoxyethylenated alcohol sodium sulfate 2%-4%, α-sodium olefin sulfonate 1%-2%, modified silicone resin polyethers emulsion 1%-2%, water 87%-92%.
Described sodium lauryl sulphate, polyoxyethylenated alcohol sodium sulfate, the mass percent sum of α-sodium olefin sulfonate are less than 11%.The consumption of described modified silicone resin polyethers emulsion is described sodium lauryl sulphate, polyoxyethylenated alcohol sodium sulfate and the 10% of α-sodium olefin sulfonate effective ingredient mass percent sum.
Optimum ratio is: sodium lauryl sulphate 6%, polyoxyethylenated alcohol sodium sulfate 2%, α-sodium olefin sulfonate 1.5%, modified silicone resin polyethers emulsion 1.5%, water 89%.
Wherein sodium lauryl sulphate K12, polyoxyethylenated alcohol sodium sulfate AES, α-sodium olefin sulfonate AOS are anion surfactant, its mass percent sum cannot be greater than 11%, modified silicone resin polyethers emulsion MPS is foam stabilizer, and its consumption is the 10% of above-mentioned anion surfactant effective ingredient.It is preferred that the chemical products that modified silicone resin polyethers emulsion is commercially available purity 55%；The total concentration of anion surfactant reaches critical micelle concentration.
Described sodium lauryl sulphate K12 is a kind of white powder, has special odor, can prepare the shampoo that bubble is good；Described polyoxyethylenated alcohol sodium sulfate AES is a kind of anionic surfactant, there is excellent foam performance, foaming power is high, foaming abundancy is fine and smooth, and zest is low, nontoxic, biological degradability hard water good, resistance to, produced foam passes through mechanical agitation when contacting with dregs, dregs can be acted on rapidly, improve its workability and lubricity.
α-sodium olefin sulfonate AOS is a kind of excellent anion surfactant, there is preferable foaminess, stronger wetting power, the surface tension of water can be down to about 30-40mN.m-1 from 72mN.m-1, can reach to associate in water to form the critical micelle concentration of micelle with relatively low volume in anion surfactant is compounding, thus reduce the consumption of surfactant.
Modified silicone resin polyethers emulsion MPS that foam stabilizer uses puts in order by changing intramolecule, make arrangement between surfactant bubble and bubble the most neat, thus form the inner layer film of densification, anti-pressure ability is strengthened, the structural stability of air bubble liquid-membrane can be controlled, make surfactant molecule Methodistic distribution on the liquid film of bubble, give elasticity and the self-reparing capability of have good lather, thus reach especially desirable steady bubble effect.
Foam of the present invention contrasts compared with foam, has formula simple, the feature being suitable for for clay.Existing foam is mainly anion and neutral ion compounds, and has filled the additive such as penetrating agent, dispersant so that the range of application of foam and additional function increase, and added value of product increases further.But in expanded clay, infiltration and dispersion are very unlikely to realize, single product (dispersant) is needed to soak the 3 day time more than, so this product uses anion surfactant to compound, simple and effective prescription can be used to reach the due effect of foam, and owing to its foam stability can be good, just can improve and carry the clay of bulk；The all aniones of foam, just combine with the cation of clay, reach the effect of reshaped clay.
The foam bubble diameter that foam of the present invention is sent out is homogeneous, and bubble is stable, and the steady bubble time is 15-21 minute, and expansion ratio is 12 ~ 18 times, is difficult to froth breaking, using the teaching of the invention it is possible to provide uniform, controlled support pressure and cutterhead face stabilizer；Dregs can be made to have preferably stream moulding, make the soil body be easily isolated, transport；Can effectively reduce soil body internal friction, reduce soil in cutterhead, conveying worm, the abrasion of conveyer belt；The viscosity of the soil body can be reduced, prevent the generation of blocking.Foam of the present invention stable performance at normal temperatures and can be with longer-term storage.The foam of the present invention have employed large chemical products, and product is pollution-free, without any side effects to dregs and surrounding enviroment.
The method have the advantages that
Improve the service behaviour of soil, make Zinc fractions plastic deformation, to provide the support pressure of uniform, controllable to make face stabilizer；Reduce seepage, strengthen the sealing of work surface；Reduce internal friction, reduce soil in cutterhead, transporter, the abrasion of conveyer belt, reduction energy consumption；Reduce the viscosity of the soil body, prevent blocking from occurring；Suppression dust effect is played in ground tunnel and mine construction.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described.
Embodiment 1: a kind of shield machine foam, by the raw material of following masses percentage ratio under 30 ~ 50 DEG C of water temperatures mixing and stirring and make: sodium lauryl sulphate (K12) 6%, polyoxyethylenated alcohol sodium sulfate (AES) 2%, α-sodium olefin sulfonate (AOS) 1.5%, modified silicone resin polyethers emulsion (MPS) 1.5%, water 89%.
The foam that the present embodiment is produced uses the consumption of 2%, and through experiment, the most surely the bubble time is 21min, and expansion ratio is 18 times, and foam bearing capacity is good.Onsite application is respond well, reaches imported product level, its foam stabilizing effect performance excellence.
Embodiment 2: a kind of shield machine foam, by the raw material of following masses percentage ratio under 30 ~ 50 DEG C of water temperatures mixing and stirring and make: sodium lauryl sulphate (K12) 5%, polyoxyethylenated alcohol sodium sulfate (AES) 4%, α-sodium olefin sulfonate (AOS) 1.5%, modified silicone resin polyethers emulsion (MPS) 1.3%, water 88.2%.
The foam that this example is produced uses the consumption of 2%, and through experiment, the most surely the bubble time is 18min, and expansion ratio is 15 times, and foam bearing capacity is good.Onsite application is effective, relatively example 1 cost economy, and sediment improvement is effective.
Anion surfactant compounds foam and contrasts with above foam, has formula simple, the feature being suitable for for clay.Other foams are mainly anion and neutral ion compounds, and have filled the additive such as penetrating agent, dispersant so that the range of application of foam and additional function increase, and added value of product increases further.But in expanded clay, infiltration and dispersion are very unlikely to realize, single product (dispersant) is needed to soak the 3 day time more than, so this product uses anion surfactant to compound, simple and effective prescription can be used to reach the due effect of foam, and owing to its foam stability can be good, just can improve and carry the clay of bulk；The all aniones of foam, just combine with the cation of clay, reach the effect of reshaped clay.This product next step will study further, for sand-pebble layer.
Utilize technical solutions according to the invention, or those skilled in the art is under the inspiration of inventive technique scheme, design similar technical scheme, and reach above-mentioned technique effect, all fall into protection scope of the present invention.
Claims (4)
1. a shield machine foam, it is characterised in that: by the raw material of following masses percentage ratio under 30 ~ 50 DEG C of water temperatures mixing and stirring and make: sodium lauryl sulphate 4%-6%, polyoxyethylenated alcohol sodium sulfate 2%-4%, α-sodium olefin sulfonate 1%-2%, modified silicone resin polyethers emulsion 1%-2%, water 87%-92%.
A kind of shield machine foam the most according to claim 1, it is characterised in that: described sodium lauryl sulphate, polyoxyethylenated alcohol sodium sulfate, the mass percent sum of α-sodium olefin sulfonate are less than 11%.
A kind of shield machine foam the most according to claim 1, it is characterised in that: the consumption of described modified silicone resin polyethers emulsion be described sodium lauryl sulphate, polyoxyethylenated alcohol sodium sulfate, the 10% of α-sodium olefin sulfonate effective ingredient mass percent sum.
A kind of shield machine foam the most according to claim 1, it is characterised in that: by the raw material of following masses percentage ratio under 30 ~ 50 DEG C of water temperatures mixing and stirring and make: sodium lauryl sulphate 6%, polyoxyethylenated alcohol sodium sulfate 2%, α-sodium olefin sulfonate 1.5%, modified silicone resin polyethers emulsion 1.5%, water 89%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510208812.XA CN106190136A (en) | 2015-04-29 | 2015-04-29 | A kind of shield machine foam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510208812.XA CN106190136A (en) | 2015-04-29 | 2015-04-29 | A kind of shield machine foam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106190136A true CN106190136A (en) | 2016-12-07 |
Family
ID=57457405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510208812.XA Pending CN106190136A (en) | 2015-04-29 | 2015-04-29 | A kind of shield machine foam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106190136A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107033916A (en) * | 2017-04-21 | 2017-08-11 | 中国建筑材料科学研究总院 | A kind of Soil pressure balance shield foam agent and preparation method thereof |
| CN108484217A (en) * | 2018-04-24 | 2018-09-04 | 上海市地江建筑科技有限公司 | Cement foam foaming agent and preparation method thereof |
| CN108774535A (en) * | 2018-06-22 | 2018-11-09 | 湖北工程学院 | A kind of special foaming agent of shield machine and its preparation method and application |
| CN109054842A (en) * | 2018-08-01 | 2018-12-21 | 中铁四局集团有限公司 | A kind of earth pressure balanced shield, EPBS sediment improvement foaming agent and preparation method thereof |
| CN109748599A (en) * | 2019-02-21 | 2019-05-14 | 西安理工大学 | A kind of lightweight alkali-activated slag thermal insulation material and preparation method thereof |
| CN109971483A (en) * | 2019-03-29 | 2019-07-05 | 中昊(大连)化工研究设计院有限公司 | A kind of pressure resistance shield foaming agent |
| CN112143503A (en) * | 2020-09-29 | 2020-12-29 | 中昊(大连)化工研究设计院有限公司 | Dispersing type foaming agent for shield |
| CN113652236A (en) * | 2021-09-01 | 2021-11-16 | 武汉比邻科技发展有限公司 | Mudstone dispersant and preparation method thereof |
-
2015
- 2015-04-29 CN CN201510208812.XA patent/CN106190136A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107033916A (en) * | 2017-04-21 | 2017-08-11 | 中国建筑材料科学研究总院 | A kind of Soil pressure balance shield foam agent and preparation method thereof |
| CN108484217A (en) * | 2018-04-24 | 2018-09-04 | 上海市地江建筑科技有限公司 | Cement foam foaming agent and preparation method thereof |
| CN108774535A (en) * | 2018-06-22 | 2018-11-09 | 湖北工程学院 | A kind of special foaming agent of shield machine and its preparation method and application |
| CN109054842A (en) * | 2018-08-01 | 2018-12-21 | 中铁四局集团有限公司 | A kind of earth pressure balanced shield, EPBS sediment improvement foaming agent and preparation method thereof |
| CN109748599A (en) * | 2019-02-21 | 2019-05-14 | 西安理工大学 | A kind of lightweight alkali-activated slag thermal insulation material and preparation method thereof |
| CN109748599B (en) * | 2019-02-21 | 2021-10-22 | 西安理工大学 | Light alkali slag heat-insulating material and preparation method thereof |
| CN109971483A (en) * | 2019-03-29 | 2019-07-05 | 中昊(大连)化工研究设计院有限公司 | A kind of pressure resistance shield foaming agent |
| CN112143503A (en) * | 2020-09-29 | 2020-12-29 | 中昊(大连)化工研究设计院有限公司 | Dispersing type foaming agent for shield |
| CN113652236A (en) * | 2021-09-01 | 2021-11-16 | 武汉比邻科技发展有限公司 | Mudstone dispersant and preparation method thereof |
| CN113652236B (en) * | 2021-09-01 | 2023-02-28 | 武汉比邻科技发展有限公司 | Mudstone dispersant and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106190136A (en) | A kind of shield machine foam | |
| CN103708757B (en) | A kind of balancing earth-pressure shielding machine foaming agent | |
| CN104946263B (en) | A kind of Soil pressure balance shield foam agent | |
| CN103964726B (en) | Earth pressure balanced shield, EPBS foaming agent | |
| CN107033916A (en) | A kind of Soil pressure balance shield foam agent and preparation method thereof | |
| CN107603629A (en) | A kind of environment-friendly type shield foaming agent and preparation method thereof | |
| CN103864334A (en) | Environment-friendly foaming agent for earth pressure balance shield tunneling machine | |
| CN107365574A (en) | A kind of viscosity reduction oil displacement agent for common heavy oil reservoir and preparation method thereof | |
| CN106635027B (en) | Foaming agent for shield and preparation method thereof | |
| CN104531075B (en) | A kind of mine dedusting foaming agent | |
| CN104531123A (en) | Foam flooding agent for thick oil and preparation method thereof | |
| CN102127451B (en) | Foaming agent | |
| CN103130439B (en) | Foaming agent for earth pressure balance shield machine | |
| CN111663948B (en) | Water-rich sand-gravel stratum shield muck improvement additive and preparation method thereof | |
| CN105198269A (en) | Foaming agent for low temperature-resistant soil pressure balance shield, and preparation method and application of foaming agent | |
| CN108531187A (en) | A kind of balancing earth-pressure shielding machine construction foaming agent and preparation method | |
| CN105969368A (en) | Foaming agent for shield tunnelling machine and preparation method of foaming agent | |
| EP2287268B1 (en) | Anti-adhesion agent composition for asphalt | |
| CN111349443A (en) | Shield foaming agent and preparation method and application thereof | |
| CN104403653B (en) | A kind of environment-friendly type Flooding Agent for EOR based on biosurfactant | |
| CN107429153A (en) | Formation of foam composition comprising particulate inorganic material | |
| CN106554780A (en) | It is a kind of to prevent incrusted efficient improver | |
| CN105985764B (en) | Fracturing fluid and its preparation method and application | |
| CN104629671B (en) | A kind of modified polyurethane sealant | |
| CN104018843B (en) | Compound stratum shield driving soil improvement construction method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161207 |