CN101462844B - Environment protection type efficient aerating powder for shield construction - Google Patents
Environment protection type efficient aerating powder for shield construction Download PDFInfo
- Publication number
- CN101462844B CN101462844B CN2009100364810A CN200910036481A CN101462844B CN 101462844 B CN101462844 B CN 101462844B CN 2009100364810 A CN2009100364810 A CN 2009100364810A CN 200910036481 A CN200910036481 A CN 200910036481A CN 101462844 B CN101462844 B CN 101462844B
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- Prior art keywords
- alcohol
- shield construction
- percent
- ether
- whipping agent
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00724—Uses not provided for elsewhere in C04B2111/00 in mining operations, e.g. for backfilling; in making tunnels or galleries
Abstract
The invention discloses an environmental protection high efficiency foaming agent for shield construction. The foaming agent comprises the following components in percentage by weight: 5 to 20 percent of aliphatic alcohol polyethenoxy ether sulfate, 1 to 8 percent of alcohol amide, 0.5 to 8 percent of alcohol ether, and 64 to 93.5 percent of water. The foaming agent for shield construction has a high foaming ratio and produces abundant and fine foams with even diameter distribution. The produced bubbles have small pores, good lubricity and stability, simple production operation, and lower cost. The foaming agent can better meet the requirements of the slag soil improvement during the process of earth pressure balanced shield.
Description
Technical field
The present invention relates to a kind of whipping agent, more particularly, the present invention relates to a kind of shielded construction and use whipping agent.
Background technology
Metro Tunnel all adopts a kind of mechanical means of shield engine of crying to excavate in recent years; Present applied shield engine type is mainly earth pressure balance shield machine; Be characterized in the dregs that excavates out that as supporting the stable medium of excavation face it is little that this requires dregs as Supporting Media to have good viscous deformation, soft denseness and rate of permeation.Because general soil can not satisfy these characteristics fully; So improve, its technical essential be cutter head of shield machine anterior with clay bin in inject foam etc. and mix and add material, through powerful stirring; Improve plasticity, the flowability of the dregs of excavation, reduce the water-permeable of dregs.This foam is by producing in the foamite system of a kind of shield structure special-purpose foaming agent on shield engine.At present, the whipping agent that domestic subway shield tunnel construction is used is mainly from external import, and its production cost and trucking costs are big, and expensive is difficult in the tunneling shield construction, use in a large number.And the whipping agent of domestic production; Normally according to the prescription of other geotechnological fields such as foamed concrete, air bubble mix light-textured soil with whipping agent; Adopt the conventional washing raw material to modulate out, whipping agent was to required some characteristics that possess of improvement dregs when each item performance index such as its foam homogeneity, stability, oilness and perviousness all were difficult to satisfy shielded construction.
Disclosed Chinese invention patent CN 1239433C disclosed a kind of whipping agent of geotechnological usefulness on February 1st, 2006; This whipping agent is counted by weight percentage and is comprised following component: C12-14 straight-chain alkyl sulfate 1～5%; Alkylol amide or polyoxyethylenated alcohol sodium sulfate 0.5～4%; Calcium chloride 1～2%, water 89.5～97.5%.Though this whipping agent expansion ratio and stable aspect be improved, the foam that foam device produced through shield engine is fine and smooth inadequately abundant, foam diameter is not of uniform size, is difficult to satisfy fully in the shielded construction to the foamy requirement.
Summary of the invention
The object of the present invention is to provide a kind of environment protection type efficient aerating powder for shield construction, to solve the problems referred to above that exist in the prior art.
Environment protection type efficient aerating powder for shield construction of the present invention, count by weight percentage and comprise following component:
Fatty alcohol polyoxyethylene ether sulfate 5～20%
Alcohol amide 1～8%
Alcohol ether 0.5～8%
Water 64～93.5%.
Shielded construction of the present invention is with in the whipping agent, and used fatty alcohol polyoxyethylene ether sulfate is selected from one or both the mixing in polyoxyethylenated alcohol sodium sulfate and the AESA.
Shielded construction of the present invention is with in the whipping agent, and used alcohol amide is selected from one or both the mixing in lauric acid amide of ethanol (6501) and the coconut oil single ethanol amide.
Shielded construction of the present invention is with in the whipping agent, and used alcohol ether is selected from one or more the mixing in butyl glycol ether, glycol propyl ether and the diethylene glycol ether.
Shielded construction according to the invention with the preparation method of whipping agent is: under the normal temperature, in stirred pot, add about 20% water, under agitation condition, add each component of whipping agent then successively, after stirring, supply the water of remaining part.
Above-mentioned shielded construction with whipping agent in; Fatty alcohol polyoxyethylene ether sulfate (being called for short AES) is a kind of aniorfic surfactant, has good foam performance, and foaming power is high, foam is abundant fine and smooth; And pungency is low, nontoxic, good, the anti-hard water of biological degradability; Through mechanical stirring, can act on dregs rapidly when the foam that is produced contacts with dregs, improve its workability and oilness; Alcohol amide has significant thickening, foam enhancing performance, and good froth stability and wettability, and good with the compatibility of AES, can produce synergistic effect, strengthens the action effect of AES; Alcohol ether then can reduce the surface tension of system, and the improvement foam performance makes foam abundant more fine and smooth, improves expansion ratio.
Shielded construction of the present invention confirms that through a large amount of tests the combination of these components and percentage composition scope make shielded construction of the present invention have following characteristics with whipping agent with the various components and the weight percentage ranges thereof of whipping agent: expansion ratio is high; Foam is abundant fine and smooth; Foam diameter is evenly distributed between 0.05～0.3mm, and the bubble hole that is produced is little; Has good lubricity and stability; Its quality does not receive the influence of storage temperature and shelf-time, and production operation is simple, and cost is lower.Shielded construction of the present invention is used whipping agent, and its each item performance index all can satisfy the requirement of improvement dregs in the earth pressure balanced shield, EPBS process preferably; Simultaneously can lubricate and cool off cutter, play the protection cutter, prolong the effect of wearing and tearing; Can rapid osmotic under mechanical agitation in soil layer; In addition, can also change froth breaking voluntarily, need not follow-up artificial de-bubble according to shield engine soil storehouse external and internal pressure; And in soil, can degrade fast, can not cause environmental pollution.
Embodiment
Embodiment one:
Prepare shielded construction of the present invention and use whipping agent 1000kg, each component concentration is:
Polyoxyethylenated alcohol sodium sulfate 140kg
Lauric acid amide of ethanol (6501) 30kg
Butyl glycol ether 30kg
Water 800kg
Under the normal temperature, in stirred pot, add 160kg water earlier, under whipped state, drop into the 140kg polyoxyethylenated alcohol sodium sulfate then successively; 30kg lauric acid amide of ethanol (6501) and 30kg butyl glycol ether; Stir, add 640kg water again, be stirred to homogeneous transparent.
Embodiment two:
Prepare shielded construction of the present invention and use whipping agent 1000kg, each component concentration is:
AESA 60kg
Coconut oil single ethanol amide 60kg
Glycol propyl ether 60kg
Water 820kg
Under the normal temperature, in stirred pot, add 160kg water earlier, under whipped state, drop into the 60kg AESA then successively, 60kg coconut oil single ethanol amide and 60kg glycol propyl ether stir, and add 660kg water again, are stirred to homogeneous transparent.
Embodiment three:
Prepare shielded construction of the present invention and use whipping agent 1000kg, each component concentration is:
Polyoxyethylenated alcohol sodium sulfate 180kg
Lauric acid amide of ethanol (6501) 20kg
Diethylene glycol ether 10kg
Water 790kg
Under the normal temperature, in stirred pot, add 160kg water earlier, under whipped state, drop into the 180kg polyoxyethylenated alcohol sodium sulfate then successively; 20kg lauric acid amide of ethanol (6501) and 10kg diethylene glycol ether; Stir, add 630kg water again, be stirred to homogeneous transparent.
Embodiment four: shielded construction is with the testing performance index of whipping agent
According to specified each component concentration in the following table 1, prepare whipping agent of the present invention (embodiment) and a kind of whipping agent (Comparative Examples) that does not contain alcohol ether respectively.
Table 1
| Each weight percentages of components | Embodiment | Comparative Examples |
| Polyoxyethylenated alcohol sodium sulfate | 12％ | 12％ |
| Lauric acid amide of ethanol | 3％ | 3％ |
| Butyl glycol ether | 4％ | ----- |
| Water | 81％ | 85％ |
Adopt the Luo Shi Latherometer to measure the foaming power of above-mentioned two kinds of whipping agents respectively, test result shows: the foaming power of the said whipping agent of embodiment is 240mm, and the foaming power of the said whipping agent of Comparative Examples is 220mm.
In the foamed system of shield engine; Dilution proportion by 3%; Mix the generation bubble through pressurized air (pressure is 0.3MPa); Expansion ratio is set to 10 times, observes its foamy diameter and degree of scatter respectively, and measures every liter of whipping agent respectively and can produce qualified volume of foam size and volume transformation period.Test result is seen table 2.
Table 2
| The performance index of whipping agent | Embodiment | Comparative Examples |
| Foam diameter | 0.05～0.3mm | 0.10～3mm |
| The foam diameter degree of scatter | The foam of diameter greater than 0.5mm do not appear in foam size homogeneous | Dispersion range is bigger, and the foam that diameter surpasses 0.5mm in every liter is more than 20 |
| Every liter of whipping agent can produce qualified volume of foam size | 300～350 liters | 200～250 liters |
| The volume transformation period | 4 hours | 4 hours |
Shielded construction of the present invention is used whipping agent, and its expansion ratio is high, and foam is abundant fine and smooth; Foam diameter is evenly distributed; The bubble hole that is produced is little, and has good lubricity and stability, and production operation is simple; Cost is lower, can satisfy the requirement of improvement dregs in the earth pressure balanced shield, EPBS process preferably.
Claims (2)
1. environment protection type efficient aerating powder for shield construction, count by weight percentage composed of the following components:
Said alcohol amide is selected from one or both the mixing in lauric acid amide of ethanol 6501 and the coconut oil single ethanol amide; Said alcohol ether is selected from one or more the mixing in butyl glycol ether, glycol propyl ether and the diethylene glycol ether.
2. environment protection type efficient aerating powder for shield construction according to claim 1 is characterized in that: said fatty alcohol polyoxyethylene ether sulfate is selected from one or both the mixing in polyoxyethylenated alcohol sodium sulfate and the AESA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100364810A CN101462844B (en) | 2009-01-08 | 2009-01-08 | Environment protection type efficient aerating powder for shield construction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100364810A CN101462844B (en) | 2009-01-08 | 2009-01-08 | Environment protection type efficient aerating powder for shield construction |
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| CN101462844A CN101462844A (en) | 2009-06-24 |
| CN101462844B true CN101462844B (en) | 2012-01-18 |
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| CN2009100364810A Active CN101462844B (en) | 2009-01-08 | 2009-01-08 | Environment protection type efficient aerating powder for shield construction |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102965117B (en) * | 2012-10-26 | 2015-03-25 | 安徽艾柯泡塑股份有限公司 | Foaming agent for earth pressure balance shield |
| CN104017553B (en) * | 2013-10-12 | 2016-10-05 | 陕西延长油田压裂材料有限公司 | A kind of preparation method of Surfactants Used for Oil field |
| CN104176971B (en) * | 2014-08-06 | 2017-01-18 | 广州市永昊建设工程有限公司 | Foaming agent and preparation method thereof |
| CN104549036A (en) * | 2014-12-31 | 2015-04-29 | 鲁东大学 | Foaming agent for sealing member pressure testing |
| CN105041326A (en) * | 2015-06-12 | 2015-11-11 | 北京城建设计发展集团股份有限公司 | Water-rich diabase and slate irregular mutual invasion rock shield residue soil improving method |
| CN106433596A (en) * | 2015-08-05 | 2017-02-22 | 中国石油化工股份有限公司 | Low-tension foaming agent suitable for high-temperature high-salinity oil reservoir |
| CN105198269B (en) * | 2015-09-01 | 2017-11-10 | 北京铁五院工程机械有限公司 | A kind of low temperature resistant earth pressure balanced shield, EPBS foaming agent and preparation method and application |
| CN106590564B (en) * | 2015-10-20 | 2019-12-10 | 中国石油化工股份有限公司 | Temperature-resistant salt-resistant low-tension foam flooding composition and preparation method and application thereof |
| CN106635027B (en) * | 2016-11-17 | 2020-08-18 | 纳拓润滑技术（上海）有限公司 | Foaming agent for shield and preparation method thereof |
| CN111138111B (en) * | 2020-01-13 | 2022-01-28 | 福建建工建材科技开发有限公司 | Early-strength waterproof foam concrete foaming agent |
| CN111302698A (en) * | 2020-03-19 | 2020-06-19 | 煤炭科学技术研究院有限公司 | Foaming agent for manufacturing inorganic curing material and preparation method thereof |
| CN115141088B (en) * | 2022-05-20 | 2024-03-22 | 广州市君鑫化工科技有限公司 | Arylated fatty alcohol ethoxy-propoxy copolymer, preparation method and application thereof |
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| US5158612A (en) * | 1991-10-25 | 1992-10-27 | Henkel Corporation | Foaming agent composition and process |
| CN1103605A (en) * | 1993-12-07 | 1995-06-14 | 煤炭科学研究总院抚顺分院 | Foaming agent with high stability |
| CN1369033A (en) * | 1999-08-12 | 2002-09-11 | Mbt控股有限公司 | Tunnel boring method |
| CN1530152A (en) * | 2003-03-14 | 2004-09-22 | 北京市消防科学研究院 | Environmental protecting intensifying water system extinguishant |
| CN1648199A (en) * | 2004-12-09 | 2005-08-03 | 中国石化胜利油田有限公司地质科学研究院 | Foaming agent for improving conventional oil reservoir raw oil recovery rate and its preparing method |
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| US5158612A (en) * | 1991-10-25 | 1992-10-27 | Henkel Corporation | Foaming agent composition and process |
| CN1103605A (en) * | 1993-12-07 | 1995-06-14 | 煤炭科学研究总院抚顺分院 | Foaming agent with high stability |
| CN1369033A (en) * | 1999-08-12 | 2002-09-11 | Mbt控股有限公司 | Tunnel boring method |
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Non-Patent Citations (1)
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| 陈伟章等.复合表面活性剂溶液体系的超起泡性能研究.《精细与专用化学品》.2007,第15卷(第3/4期),21-24、27. * |
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| CN101462844A (en) | 2009-06-24 |
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