CN107502358A - A kind of special foaming agent of balancing earth-pressure shielding machine and preparation method thereof - Google Patents
A kind of special foaming agent of balancing earth-pressure shielding machine and preparation method thereof Download PDFInfo
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- CN107502358A CN107502358A CN201710695288.2A CN201710695288A CN107502358A CN 107502358 A CN107502358 A CN 107502358A CN 201710695288 A CN201710695288 A CN 201710695288A CN 107502358 A CN107502358 A CN 107502358A
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- sodium
- foaming agent
- shielding machine
- pressure shielding
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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
Abstract
The present invention provides a kind of special foaming agent of balancing earth-pressure shielding machine and preparation method thereof, is related to shield-tunneling construction building field, is prepared from the following raw materials in parts by weight：6 10 parts of lauryl sodium sulfate,9 15 parts of empgen BB,35 parts of sodium chloride,68 parts of n-butanol,46 parts of DDAO,23 parts of ethoxylated dodecyl alcohol sodium sulphate,57 parts of sodium alginate,37 parts of alkylpolyoxyethylene sodium sulphate,35 parts of hexadecyltrimethylammonium chloride,23 parts of fluoranthene,24 parts of disodium ethylene diamine tetraacetate,35 parts of Cortex cinnamomi japonici (Ramulus Cinnamomi) extract,35 parts of polyethylene glycol,57 parts of tackifier,70 100 parts of water,Its preparation method includes three steps,The plasticity of energy improved soil of the invention,Mobility and barrier properties,The mobility of dregs in sealing soil cabin can be improved,Protect cutter,Reduce cutter head torque,The soil body can be made to form soil plug in conveying worm,Effectively prevent the generation gushed,The present invention is nontoxic corrosion-free,Bubble stability is good,Duration is grown.
Description
Technical field
The present invention relates to shield-tunneling construction building field, and in particular to a kind of special foaming agent of balancing earth-pressure shielding machine and its system
Preparation Method.
Background technology
Shield method is a kind of Fully-mechanized construction method in shallow mining method, and it is to promote Shield-type machinery in ground,
Surrounding country rock is supported by shield shell and section of jurisdiction to prevent toward caving in tunnel, while with cutting dress in front of excavation face
Carry out soil excavation is put, by being unearthed, machinery is transported outside hole, by jack in rear pressurization jacking, and assembled precast concrete pipe
Piece, form a kind of mechanized construction method of tunnel structure.At present, oneself warp turns into China's city underground to earth pressure balanced shield, EPBS at present
Main flow in construction method, and foam modifying agent changes as a kind of outstanding soil improvement agent in the soil body of earth pressure balanced shield, EPBS
Leading position is occupied in good technology, because it has concentrated practicality and economy and one, is had broad application prospects.
For the foaming agent used in earth pressure balanced shield, EPBS, stability is a vital performance.When foaming agent is used
In shield process, according to shield site operation, foamed system sends foam, and improvement is mixed with the soil body, there is a time interval, because
This, shield bubble must have certain stability, vanish, lose split with excavating unlikely excessive decay before the soil body mixes
Cut the earth the purpose of improvement, although current foaming agent, with excellent foam performance, but the stability of foam is difficult that meet will
Ask.Because soil is a complicated system, wherein there is various chemistry and biochemical reaction, thus show soil
Different acid-base property, in construction neutral and acidic soil foam can be made to become unstable, and then the soil body is lost Plastic Flow state, led
Shield machine is caused " occlusion " occur, silt " is gushed ", the technical barrier such as soil body " molding ".
The content of the invention
In view of the shortcomings of the prior art, the invention provides a kind of special foaming agent of balancing earth-pressure shielding machine and its preparation side
Method so that foaming agent has preferable stability and head retention.
To realize object above, the present invention is achieved by the following technical programs：
A kind of special foaming agent of balancing earth-pressure shielding machine, is prepared from the following raw materials in parts by weight：
Lauryl sodium sulfate 6-10 parts, empgen BB 9-15 parts, sodium chloride 3-5 parts, n-butanol 6-8 parts, ten
Dialkyl dimethyl amine oxide 4-6 parts, ethoxylated dodecyl alcohol sodium sulphate 2-3 parts, sodium alginate 5-7 parts, dodecyl gather
Oxygen ethene ether sodium sulfate 3-7 parts, hexadecyltrimethylammonium chloride 3-5 parts, fluoranthene 2-3 parts, disodium ethylene diamine tetraacetate 2-4
Part, Cortex cinnamomi japonici (Ramulus Cinnamomi) extract 3-5 parts, polyethylene glycol 3-5 parts, tackifier 5-7 parts, water 70-100 parts.
Preferably, the special foaming agent of the balancing earth-pressure shielding machine, is prepared from the following raw materials in parts by weight：Dodecyl
8 parts of sodium sulphate, 12 parts of empgen BB, 4 parts of sodium chloride, 7 parts of n-butanol, 5 parts of DDAO, bay
2.5 parts of alcohol polyethenoxy ether sodium sulfate, 6 parts of sodium alginate, 5 parts of alkylpolyoxyethylene sodium sulphate, cetyl front three
4 parts of ammonium chloride, 2.5 parts of fluoranthene, 3 parts of disodium ethylene diamine tetraacetate, 4 parts of Cortex cinnamomi japonici (Ramulus Cinnamomi) extract, 4 parts of polyethylene glycol, tackifier 6
Part, 85 parts of water.
Preferably, the empgen BB and the mass ratio of lauryl sodium sulfate are 3：2.
Preferably, the tackifier are mixed by ammonium chloride, diglycollic amide, sodium chloride, ammonium sulfate.
Preferably, the tackifier are by ammonium chloride, diglycollic amide, sodium chloride, ammonium sulfate in mass ratio 8：1：6：6 mixing
Form.
The preparation method of the above-mentioned special foaming agent of balancing earth-pressure shielding machine, comprises the following steps：
(1) lauryl sodium sulfate of formula ratio, empgen BB, n-butanol, dodecyl dimethyl are aoxidized
Amine, ethoxylated dodecyl alcohol sodium sulphate and polyethylene glycol are soluble in water, are uniformly mixed under normal temperature, obtain mixed liquor；
(2) sodium chloride, sodium alginate, alkylpolyoxyethylene sulfuric acid of formula ratio are sequentially added into mixed liquor again
Sodium, hexadecyltrimethylammonium chloride, fluoranthene, disodium ethylene diamine tetraacetate, Cortex cinnamomi japonici (Ramulus Cinnamomi) extract and tackifier, it is again stirring for
It is even, produce.
Beneficial effect：
The invention provides special foaming agent of a kind of balancing earth-pressure shielding machine and preparation method thereof, in the present invention sodium chloride and
N-butanol can improve amphoteric surfactant empgen BB and anionic surfactant so lauryl sulfate
The surface-active of compound system；Sodium alginate can improve the foamability and foam stabilization of alkylpolyoxyethylene sodium sulphate
Property so that the foaming foam stability of mixed system substantially increases；DDAO and ethoxylated dodecyl alcohol sulphur
The binary built of sour sodium can reduce the surface tension of preparation, strengthen the foam performance of foaming agent, durable lather power, viscosity etc.；Second
Edetate disodium Cortex cinnamomi japonici (Ramulus Cinnamomi) extract is used in combination, and has certain bactericidal effect；The connection of hexadecyltrimethylammonium chloride and fluoranthene
Close, toxicity collaboration increase, frustule current potential can be improved, reduce the content of chlorophyll and protein in frustule body, suppress thin
Bacterium and algae growth.
Inorganic salts ammonium chloride presses the proportioning of science with diglycollic amide in thickener in the present invention, has synergistic thickening
Can, thickening effect is good.
Plasticity, mobility and the barrier properties of energy improved soil of the invention, ensure the stabilization of excavation face, sealing soil cabin can be improved
The mobility of interior dregs, cutter is protected, reduce cutter head torque, the soil body can be made to form soil plug in conveying worm, effectively prevented
The generation gushed, the present invention is nontoxic corrosion-free, and bubble stability is good, duration length.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention,
Technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is the present invention one
Divide embodiment, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making
The every other embodiment obtained under the premise of creative work, belongs to the scope of protection of the invention.
Embodiment 1：
A kind of special foaming agent of balancing earth-pressure shielding machine, is prepared from the following raw materials in parts by weight：
6 parts of lauryl sodium sulfate, 9 parts of empgen BB, 5 parts of sodium chloride, 6 parts of n-butanol, dimethyl
6 parts of base amine oxide, 2 parts of ethoxylated dodecyl alcohol sodium sulphate, 7 parts of sodium alginate, alkylpolyoxyethylene sodium sulphate 3
Part, 5 parts of hexadecyltrimethylammonium chloride, 2 parts of fluoranthene, 4 parts of disodium ethylene diamine tetraacetate, 3 parts of Cortex cinnamomi japonici (Ramulus Cinnamomi) extract, polyethylene glycol
5 parts, 7 parts of tackifier, 70 parts of water.
Wherein, tackifier are by ammonium chloride, diglycollic amide, sodium chloride, ammonium sulfate in mass ratio 8：1：6：6 mix.
The preparation method of the above-mentioned special foaming agent of balancing earth-pressure shielding machine, comprises the following steps：
(1) lauryl sodium sulfate of formula ratio, empgen BB, n-butanol, dodecyl dimethyl are aoxidized
Amine, ethoxylated dodecyl alcohol sodium sulphate and polyethylene glycol are soluble in water, are uniformly mixed under normal temperature, obtain mixed liquor；
(2) sodium chloride, sodium alginate, alkylpolyoxyethylene sulfuric acid of formula ratio are sequentially added into mixed liquor again
Sodium, hexadecyltrimethylammonium chloride, fluoranthene, disodium ethylene diamine tetraacetate, Cortex cinnamomi japonici (Ramulus Cinnamomi) extract and tackifier, it is again stirring for
It is even, produce.
Embodiment 2：
A kind of special foaming agent of balancing earth-pressure shielding machine, is prepared from the following raw materials in parts by weight：
10 parts of lauryl sodium sulfate, 15 parts of empgen BB, 3 parts of sodium chloride, 8 parts of n-butanol, dodecyl two
4 parts of methyl oxidation amine, 3 parts of ethoxylated dodecyl alcohol sodium sulphate, 5 parts of sodium alginate, alkylpolyoxyethylene sodium sulphate 7
Part, 3 parts of hexadecyltrimethylammonium chloride, 3 parts of fluoranthene, 2 parts of disodium ethylene diamine tetraacetate, 5 parts of Cortex cinnamomi japonici (Ramulus Cinnamomi) extract, polyethylene glycol
3 parts, 5 parts of tackifier, 100 parts of water.
Wherein, tackifier are by ammonium chloride, diglycollic amide, sodium chloride, ammonium sulfate in mass ratio 8：1：6：6 mix；
The preparation method of the special foaming agent of balancing earth-pressure shielding machine is the same as embodiment 1.
Embodiment 3：
A kind of special foaming agent of balancing earth-pressure shielding machine, is prepared from the following raw materials in parts by weight：
8 parts of lauryl sodium sulfate, 12 parts of empgen BB, 4 parts of sodium chloride, 7 parts of n-butanol, dimethyl
5 parts of base amine oxide, 2.5 parts of ethoxylated dodecyl alcohol sodium sulphate, 6 parts of sodium alginate, alkylpolyoxyethylene sodium sulphate 5
Part, 4 parts of hexadecyltrimethylammonium chloride, 2.5 parts of fluoranthene, 3 parts of disodium ethylene diamine tetraacetate, 4 parts of Cortex cinnamomi japonici (Ramulus Cinnamomi) extract, poly- second two
4 parts of alcohol, 6 parts of tackifier, 85 parts of water.
Wherein, tackifier are by ammonium chloride, diglycollic amide, sodium chloride, ammonium sulfate in mass ratio 8：1：6：6 mix；
The preparation method of the special foaming agent of balancing earth-pressure shielding machine is the same as embodiment 1.
Embodiment 4：
A kind of special foaming agent of balancing earth-pressure shielding machine, is prepared from the following raw materials in parts by weight：
8 parts of lauryl sodium sulfate, 12 parts of empgen BB, 5 parts of sodium chloride, 7.5 parts of n-butanol, dodecyl two
6 parts of methyl oxidation amine, 2.5 parts of ethoxylated dodecyl alcohol sodium sulphate, 6.5 parts of sodium alginate, alkylpolyoxyethylene sulphur
Sour 6 parts of sodium, 4.5 parts of hexadecyltrimethylammonium chloride, 3 parts of fluoranthene, 2 parts of disodium ethylene diamine tetraacetate, Cortex cinnamomi japonici (Ramulus Cinnamomi) extract 4.5
Part, 5 parts of polyethylene glycol, 7 parts of tackifier, 90 parts of water.
Wherein, tackifier are by ammonium chloride, diglycollic amide, sodium chloride, ammonium sulfate in mass ratio 8：1：6：6 mix；
The preparation method of the special foaming agent of balancing earth-pressure shielding machine is the same as embodiment 1.
Technical indicator：Technical indicator test is carried out to the special foaming agent of the balancing earth-pressure shielding machine as made from embodiment 1-4,
Test result is as follows：
| Project | Quality index |
| Outward appearance | Transparency liquid |
| Density (g/cm3)25℃ | 1.01-1.04 |
| 25 DEG C of kinematic viscosity (mPas) | 8-25 |
| It is water-soluble | It is completely dissolved |
| PH value | 6.8-8.0 |
| Frothing percentage (3% aqueous solution) | 21-25 times |
| Half foam life period (3% aqueous solution) | ＞ 30min |
To sum up, the embodiment of the present invention has the advantages that：Balancing earth-pressure shielding machine made from 1-4 of the embodiment of the present invention
Special foaming agent has the advantages of frothing percentage is high, bubble stability is good, the duration is long.
Application method：The direct use of product is without diluting, the reference dosage of foaming agent in Different Strata：
| Soil layer | Injection rate (the foam dosage/excavation soil body) |
| Layer of sand | 25-35% |
| Residual soil | 30-50% |
| Clay layer | 20-40% |
| Rock | 80-90% |
Note：The water content that the actual value of injection rate will also combine bottom makees specific adjustment.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply and deposited between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability includes, so that process, method, article or equipment including a series of elements not only will including those
Element, but also the other element including being not expressly set out, or it is this process, method, article or equipment also to include
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Other identical element also be present in process, method, article or equipment including the key element.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
The present invention is described in detail, it will be understood by those within the art that：It still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent substitution to which part technical characteristic；And these modification or
Replace, the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (6)
1. a kind of special foaming agent of balancing earth-pressure shielding machine, it is characterised in that be prepared from the following raw materials in parts by weight：Dodecane
Base sodium sulphate 6-10 parts, empgen BB 9-15 parts, sodium chloride 3-5 parts, n-butanol 6-8 parts, dodecyl dimethyl oxygen
Change amine 4-6 parts, ethoxylated dodecyl alcohol sodium sulphate 2-3 parts, sodium alginate 5-7 parts, alkylpolyoxyethylene sodium sulphate
3-7 parts, hexadecyltrimethylammonium chloride 3-5 parts, fluoranthene 2-3 parts, disodium ethylene diamine tetraacetate 2-4 parts, Cortex cinnamomi japonici (Ramulus Cinnamomi) extract 3-5
Part, polyethylene glycol 3-5 parts, tackifier 5-7 parts, water 70-100 parts.
2. the special foaming agent of balancing earth-pressure shielding machine as claimed in claim 1, it is characterised in that by the original of following parts by weight
Material is made：8 parts of lauryl sodium sulfate, 12 parts of empgen BB, 4 parts of sodium chloride, 7 parts of n-butanol, dimethyl
5 parts of base amine oxide, 2.5 parts of ethoxylated dodecyl alcohol sodium sulphate, 6 parts of sodium alginate, alkylpolyoxyethylene sodium sulphate 5
Part, 4 parts of hexadecyltrimethylammonium chloride, 2.5 parts of fluoranthene, 3 parts of disodium ethylene diamine tetraacetate, 4 parts of Cortex cinnamomi japonici (Ramulus Cinnamomi) extract, poly- second two
4 parts of alcohol, 6 parts of tackifier, 85 parts of water.
3. the special foaming agent of balancing earth-pressure shielding machine as claimed in claim 1, it is characterised in that the empgen BB
Mass ratio with lauryl sodium sulfate is 3：2.
4. the special foaming agent of balancing earth-pressure shielding machine as claimed in claim 1, it is characterised in that the tackifier are by chlorination
Ammonium, diglycollic amide, sodium chloride, ammonium sulfate mix.
5. the special foaming agent of balancing earth-pressure shielding machine as claimed in claim 1, it is characterised in that the tackifier are by chlorination
Ammonium, diglycollic amide, sodium chloride, ammonium sulfate in mass ratio 8：1：6：6 mix.
6. the preparation method of the special foaming agent of balancing earth-pressure shielding machine as claimed in claim 1, it is characterised in that including following
Step：
(1) by the lauryl sodium sulfate of formula ratio, empgen BB, n-butanol, DDAO, the moon
Cinnamic alcohol polyethenoxy ether sodium sulfate and polyethylene glycol are soluble in water, are uniformly mixed under normal temperature, obtain mixed liquor；
(2) sequentially added again into mixed liquor the sodium chloride of formula ratio, sodium alginate, alkylpolyoxyethylene sodium sulphate,
Hexadecyltrimethylammonium chloride, fluoranthene, disodium ethylene diamine tetraacetate, Cortex cinnamomi japonici (Ramulus Cinnamomi) extract and tackifier, it is again stirring for uniformly, i.e.,
.
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| CN201710695288.2A CN107502358A (en) | 2017-08-15 | 2017-08-15 | A kind of special foaming agent of balancing earth-pressure shielding machine and preparation method thereof |
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| CN201710695288.2A CN107502358A (en) | 2017-08-15 | 2017-08-15 | A kind of special foaming agent of balancing earth-pressure shielding machine and preparation method thereof |
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| CN109652082A (en) * | 2018-12-06 | 2019-04-19 | 南京军盾化工科技有限公司 | Mud cake stripper and preparation method thereof |
| CN112342028A (en) * | 2020-10-28 | 2021-02-09 | 中铁建华南建设(广州)高科技产业有限公司 | Shield dispersing agent and preparation method and application thereof |
| CN114426848A (en) * | 2022-01-21 | 2022-05-03 | 北京市政建设集团有限责任公司 | Preparation method and device of foaming agent for construction of earth pressure balance shield machine |
| CN115044378A (en) * | 2022-06-09 | 2022-09-13 | 中南大学 | Thickening type foaming agent suitable for water-rich sandy stratum and application thereof |
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Cited By (6)
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| CN109652082A (en) * | 2018-12-06 | 2019-04-19 | 南京军盾化工科技有限公司 | Mud cake stripper and preparation method thereof |
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| CN115044378B (en) * | 2022-06-09 | 2023-04-21 | 中南大学 | Thickening foaming agent suitable for water-rich sandy stratum and application thereof |
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Address after: 230000 phase two, 2018, Venus commercial city, No. 339, Shizhu Road, Hefei economic and Technological Development Zone, Anhui Applicant after: Hefei Zhuo Li Ya engineering Mstar Technology Ltd Address before: Taoyuan Xiyuan village in Shushan District of Hefei city in Anhui Province in the 230000 building 4 Room 102 Applicant before: Hefei Zhuo Li Ya engineering Mstar Technology Ltd |
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Application publication date: 20171222 |