CN115975612A - Subway shield foaming agent and preparation method thereof - Google Patents
Subway shield foaming agent and preparation method thereof Download PDFInfo
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- CN115975612A CN115975612A CN202210683545.1A CN202210683545A CN115975612A CN 115975612 A CN115975612 A CN 115975612A CN 202210683545 A CN202210683545 A CN 202210683545A CN 115975612 A CN115975612 A CN 115975612A
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- foaming agent
- subway shield
- water
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- 239000004088 foaming agent Substances 0.000 title claims abstract description 51
- 238000002360 preparation method Methods 0.000 title claims description 12
- 239000002994 raw material Substances 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000005187 foaming Methods 0.000 claims abstract description 16
- 239000004094 surface-active agent Substances 0.000 claims abstract description 13
- MRUAUOIMASANKQ-UHFFFAOYSA-N cocamidopropyl betaine Chemical compound CCCCCCCCCCCC(=O)NCCC[N+](C)(C)CC([O-])=O MRUAUOIMASANKQ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229940073507 cocamidopropyl betaine Drugs 0.000 claims abstract description 12
- -1 lauric acid imidazoline quaternary ammonium salt Chemical class 0.000 claims abstract description 12
- 239000002280 amphoteric surfactant Substances 0.000 claims abstract description 11
- WOWHHFRSBJGXCM-UHFFFAOYSA-M cetyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)C WOWHHFRSBJGXCM-UHFFFAOYSA-M 0.000 claims abstract description 11
- 239000005639 Lauric acid Substances 0.000 claims abstract description 10
- POULHZVOKOAJMA-UHFFFAOYSA-N methyl undecanoic acid Natural products CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 claims abstract description 10
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims abstract description 10
- 239000004711 α-olefin Substances 0.000 claims abstract description 10
- 229920002401 polyacrylamide Polymers 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims description 21
- NGOZDSMNMIRDFP-UHFFFAOYSA-N 2-[methyl(tetradecanoyl)amino]acetic acid Chemical compound CCCCCCCCCCCCCC(=O)N(C)CC(O)=O NGOZDSMNMIRDFP-UHFFFAOYSA-N 0.000 claims description 9
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 9
- 229910052708 sodium Inorganic materials 0.000 claims description 9
- 239000011734 sodium Substances 0.000 claims description 9
- 238000005303 weighing Methods 0.000 claims description 7
- 239000002689 soil Substances 0.000 abstract description 7
- 230000005641 tunneling Effects 0.000 abstract description 5
- 229940060304 sodium myristoyl sarcosinate Drugs 0.000 abstract description 3
- KHCOJQDJOCNUGV-UHFFFAOYSA-M sodium;2-[methyl(tetradecanoyl)amino]acetate Chemical compound [Na+].CCCCCCCCCCCCCC(=O)N(C)CC([O-])=O KHCOJQDJOCNUGV-UHFFFAOYSA-M 0.000 abstract description 3
- 230000001050 lubricating effect Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 10
- 239000006260 foam Substances 0.000 description 7
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 229940051841 polyoxyethylene ether Drugs 0.000 description 3
- 229920000056 polyoxyethylene ether Polymers 0.000 description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 description 2
- 239000000693 micelle Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- XFRVVPUIAFSTFO-UHFFFAOYSA-N 1-Tridecanol Chemical compound CCCCCCCCCCCCCO XFRVVPUIAFSTFO-UHFFFAOYSA-N 0.000 description 1
- 239000003109 Disodium ethylene diamine tetraacetate Substances 0.000 description 1
- ZGTMUACCHSMWAC-UHFFFAOYSA-L EDTA disodium salt (anhydrous) Chemical compound [Na+].[Na+].OC(=O)CN(CC([O-])=O)CCN(CC(O)=O)CC([O-])=O ZGTMUACCHSMWAC-UHFFFAOYSA-L 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000019301 disodium ethylene diamine tetraacetate Nutrition 0.000 description 1
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- YWFWDNVOPHGWMX-UHFFFAOYSA-N n,n-dimethyldodecan-1-amine Chemical compound CCCCCCCCCCCCN(C)C YWFWDNVOPHGWMX-UHFFFAOYSA-N 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920000259 polyoxyethylene lauryl ether Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Abstract
The invention discloses a subway shield foaming agent which is prepared from the following raw materials in percentage by mass: 5-10% of alpha-olefin sulfonate surfactant, 5-10% of cocamidopropyl betaine, 2-6% of hexadecyl trimethyl ammonium chloride, 1-5% of sodium myristoyl sarcosinate, 1-5% of lauric acid imidazoline quaternary ammonium salt amphoteric surfactant, 0.5-1% of polyacrylamide and the balance of water. The prepared subway shield foaming agent has the viscosity of 0.6-1.4 Pa.s at 25 ℃, the half-life period of 35-45 min and the foaming multiplying power of 24-28 times, and has excellent foaming capacity and foaming stability; the mobility and the water stopping performance of the soil body can be effectively improved, the cutter head has good lubricating performance, the torque of the cutter head can be obviously reduced, the tunneling speed is greatly improved, and the service life of the cutter head is prolonged.
Description
Technical Field
The invention relates to the field of shield construction, in particular to a subway shield foaming agent and a preparation method thereof.
Background
With the development of science and technology in China, more and more cities plan and build subways, and the earth pressure balance shield construction method is the mainstream mode of construction at present. The earth pressure balance shield construction method is rapidly developed because of no influence from the aspects of terrain, landform, engineering quality, construction progress, safety, environment and the like, and particularly has obvious technical and economic advantages under the conditions of poor stratum conditions, complex geological conditions, high underground water level and the like. However, aiming at the characteristics of complex terrain and landform, a series of difficulties of mud spraying, sand gushing, cake forming, blocking and the like also exist, in the prior art, the foaming agent is generally utilized to improve the soil body, so that the shield machine can be constructed in different geological layers, the abrasion and the blockage of a cutter can be reduced, the tunneling speed is improved, and the cost is saved. The foaming agent is usually dispersed in water by compounding a surfactant and adding a certain amount of a foam stabilizer, a tackifier and the like.
Patent CN 108070383A discloses a foam stabilizing and lasting type soil pressure balance shield foaming agent, which is prepared from the following raw materials in percentage by weight: 12 to 15 percent of sodium dodecyl sulfate; 3-6% of fatty alcohol-polyoxyethylene ether sodium sulfate; 0.1 to 0.3 percent of dodecanol; 2 to 4 percent of hexamethylene glycol; 3% -5% of cocamidopropyl betaine; NH (NH) 3 ·H 2 O 1％～1.8 percent; the balance being water. Patent CN106753408a discloses a novel shield foaming agent, comprising: comprises the following components in parts by weight: 5-10 parts of sodium dodecyl sulfate; 1-10 parts of lauryl polyoxyethylene ether sodium sulfate; 0.1-10 parts of polyoxyethylene lauryl ether; 0.1-10 parts of isomeric tridecanol polyoxyethylene ether; 0.1-10 parts of sodium chloride; 80-100 parts of water. The novel shield foaming agent provided by the invention has excellent foaming performance and stability. The patent CN104946263A discloses a soil pressure balance shield foaming agent, which is prepared from the following raw materials in percentage by weight: 4-15% of sodium dodecyl sulfate, 1-10% of hexadecyl trimethyl ammonium chloride, 2-8% of cocamidopropyl betaine, 1-5% of dodecyl dimethyl ammonium oxide, 0.1-0.5% of disodium ethylene diamine tetraacetate, 0.1-2.0% of tackifier and the balance of water.
The shield construction in China is also widely applied in recent years, most of the shield construction is made of imported materials, and the cost is high.
Disclosure of Invention
Based on the defects and requirements of the prior art, the invention aims to provide the subway shield foaming agent and the preparation method thereof.
In order to solve the technical problems, the invention adopts the following technical scheme:
the subway shield foaming agent is prepared from the following raw materials in percentage by mass:
further, the subway shield foaming agent is prepared from the following raw materials in percentage by mass:
further, the subway shield foaming agent is prepared from the following raw materials in percentage by mass:
further, the subway shield foaming agent has the pH value of 7.5-8.0 and the density of 1.02-1.05 g-cm at 25 DEG C -3 Viscosity at 25 ℃ is 0.6-1.4 Pa.s, half-life period is 35-45 min, and foaming ratio is 24-28 times.
A preparation method of a subway shield foaming agent comprises the following steps:
(1) Weighing the raw materials according to the raw material ratio;
(2) Putting water into a container, and adding the alpha-olefin sulfonate surfactant, the cocamidopropyl betaine, the hexadecyl trimethyl ammonium chloride, the myristoyl sarcosine sodium, the lauric acid imidazoline quaternary ammonium salt amphoteric surfactant and the polyacrylamide into the water in sequence under the condition of stirring to be uniformly stirred.
Furthermore, the stirring speed is 20-30 r/min, and the stirring time is 10-20 min.
According to the invention, through compounding the surfactant, the alpha-olefin sulfonate surfactant, the cocamidopropyl betaine and the hexadecyl trimethyl ammonium chloride are used as main foaming components, so that the basic foaming performance is ensured; the amino acid type surface active myristoyl sarcosine sodium is matched with the active myristoyl sarcosine sodium, so that the generated foam is rich and fine; the lauric acid imidazoline quaternary ammonium salt amphoteric surfactant has smaller surface tension, can reduce the surface tension of the foaming agent to be far greater than the tendency of forming micelles by polymerization, has the critical micelle concentration which is several orders of magnitude lower than that of the common surfactant, and further controls the surface tension of the foaming agent to be 20-30 mN.m -1 To exert the best foaming ability and stability.
Compared with the prior art, the invention has the following beneficial effects:
(1) The subway shield foaming agent prepared by the invention has the viscosity of 0.6-1.4 Pa.s at 25 ℃, the half-life period of 35-45 min and the foaming multiplying power of 24-28 times, and has excellent foaming capacity and foaming stability.
(2) The mobility and the water stopping performance of the soil body can be effectively improved, the cutter head has good lubricating performance, the torque of the cutter head can be obviously reduced, the tunneling speed is greatly improved, and the service life of the cutter head is prolonged.
(3) The foam generated by the foaming agent has high permeability, can quickly permeate into the soil body, effectively prevents the blockage phenomenon and ensures that the tunneling is smoothly carried out.
Detailed Description
The present invention will be further described with reference to the following examples for facilitating understanding of those skilled in the art, and the description of the embodiments is not intended to limit the present invention.
Example 1
The subway shield foaming agent is prepared from the following raw materials in percentage by mass:
the preparation method of the subway shield foaming agent comprises the following steps:
(1) Weighing the raw materials according to the raw material ratio;
(2) Putting water into a container, and adding the alpha-olefin sulfonate surfactant, the cocamidopropyl betaine, the hexadecyl trimethyl ammonium chloride, the myristoyl sarcosine sodium, the lauric acid imidazoline quaternary ammonium salt amphoteric surfactant and the polyacrylamide into the water in sequence under the condition of stirring to be uniformly stirred. Wherein the stirring speed is 20r/min, and the stirring time is 10min.
Example 2
The subway shield foaming agent is prepared from the following raw materials in percentage by mass:
the preparation method of the subway shield foaming agent comprises the following steps:
(1) Weighing the raw materials according to the raw material ratio;
(2) Putting water into a container, and adding the alpha-olefin sulfonate surfactant, the cocamidopropyl betaine, the hexadecyl trimethyl ammonium chloride, the myristoyl sarcosine sodium, the lauric acid imidazoline quaternary ammonium salt amphoteric surfactant and the polyacrylamide into the water in sequence under the condition of stirring to be uniformly stirred. Wherein the stirring speed is 30r/min, and the stirring time is 20min.
Example 3
The subway shield foaming agent is prepared from the following raw materials in percentage by mass:
the preparation method of the subway shield foaming agent comprises the following steps:
(1) Weighing the raw materials according to the raw material ratio;
(2) Putting water into a container, and sequentially adding the alpha-olefin sulfonate surfactant, the cocamidopropyl betaine, the hexadecyl trimethyl ammonium chloride, the sodium myristoyl sarcosinate, the imidazoline laurate quaternary ammonium salt amphoteric surfactant and the polyacrylamide into the water under the condition of stirring to be uniformly stirred. Wherein the stirring speed is 25r/min, and the stirring time is 15min.
Example 4
The subway shield foaming agent is prepared from the following raw materials in percentage by mass:
the preparation method of the subway shield foaming agent comprises the following steps:
(1) Weighing the raw materials according to the raw material ratio;
(2) Putting water into a container, and adding the alpha-olefin sulfonate surfactant, the cocamidopropyl betaine, the hexadecyl trimethyl ammonium chloride, the myristoyl sarcosine sodium, the lauric acid imidazoline quaternary ammonium salt amphoteric surfactant and the polyacrylamide into the water in sequence under the condition of stirring to be uniformly stirred. Wherein the stirring speed is 20r/min, and the stirring time is 20min.
Example 5
The subway shield foaming agent is prepared from the following raw materials in percentage by mass:
the preparation method of the subway shield foaming agent comprises the following steps:
(1) Weighing the raw materials according to the raw material ratio;
(2) Putting water into a container, and adding the alpha-olefin sulfonate surfactant, the cocamidopropyl betaine, the hexadecyl trimethyl ammonium chloride, the myristoyl sarcosine sodium, the lauric acid imidazoline quaternary ammonium salt amphoteric surfactant and the polyacrylamide into the water in sequence under the condition of stirring to be uniformly stirred. Wherein the stirring speed is 20r/min, and the stirring time is 10min.
1. In order to better embody the effects of the raw materials of the foaming agent of the application, the subway shield foaming agent prepared by the invention examples 1-5 is compared with the imported foaming agent Basffmeyco SLF 33 model. The results are reported in table 1 for the basic performance tests.
TABLE 1
Compared with the Pasteur MEYCO SLF 33 type, the subway shield foaming agent prepared by the invention has more excellent foaming multiplying power and stability, and can reach the import level. Can be used as a replacement product of an imported foaming agent in the construction process, and can effectively reduce the construction cost.
2. We also prepared a control test group, using example 5 as a reference, in which:
comparative example 1
The subway shield foaming agent is prepared from the following raw materials in percentage by mass:
comparative example 2
The subway shield foaming agent is prepared from the following raw materials in percentage by mass:
comparative example 3
The subway shield foaming agent is prepared from the following raw materials in percentage by mass:
the results are reported in table 2 for the basic performance tests.
TABLE 2
According to the data in table 2, the foaming agent only containing the alpha-olefin sulfonate surfactant, the cocamidopropyl betaine and the hexadecyl trimethyl ammonium chloride has certain foaming performance, but the performance of the foaming agent is improved after the myristoyl sarcosine sodium is added, and particularly the foam fineness is obviously changed; this indicates that sodium myristoyl sarcosinate in the above-mentioned complex system is beneficial for foam to form fine foam. Lauric acid imidazoline quaternary ammonium salt amphoteric surfactant enables the surface tension of the system to be from 41.1 mN.m -1 Reduced to 33.6 mN.m -1 Corresponding to the expansion timesThe improvement of the rate and the half-life period shows that the lauric acid imidazoline quaternary ammonium salt amphoteric surfactant can reduce the surface tension of a system, so that the foaming multiplying power and the half-life period are improved, and the foaming capacity and the stability are effectively improved.
In conclusion, the subway shield foaming agent prepared by the invention has excellent performance in the aspects of improving soil body, preventing gushing, blocking and the like, can improve the tunneling speed and reduce the construction cost.
It should be understood that the embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present disclosure, as various modifications or changes in light thereof will be suggested to persons skilled in the art and are to be included within the spirit and purview of this application.
Claims (6)
1. The subway shield foaming agent is characterized by being prepared from the following raw materials in percentage by mass:
the balance being water.
2. The subway shield foaming agent according to claim 1, wherein the foaming agent is prepared from the following raw materials in percentage by mass:
the balance being water.
3. The subway shield foaming agent according to claims 1-2, characterized in that the foaming agent is prepared from the following raw materials by mass:
the balance being water.
4. The subway shield foaming agent as claimed in claims 1-3, wherein said subway shield foaming agent has pH of 7.5-8.0, density of 1.02-1.05 g-cm at 25 ℃ -3 Viscosity at 25 ℃ is 0.6-1.4 Pa.s, half-life period is 35-45 min, and foaming ratio is 24-28 times.
5. A preparation method of the subway shield foaming agent as claimed in claims 1-4, characterized by comprising the following steps:
(1) Weighing the raw materials according to the raw material ratio;
(2) Putting water into a container, and adding the alpha-olefin sulfonate surfactant, the cocamidopropyl betaine, the hexadecyl trimethyl ammonium chloride, the myristoyl sarcosine sodium, the lauric acid imidazoline quaternary ammonium salt amphoteric surfactant and the polyacrylamide into the water in sequence under the condition of stirring to be uniformly stirred.
6. The preparation method of the metro shield foaming agent according to claim 5, wherein the stirring speed is 20-30 r/min, and the stirring time is 10-20 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210683545.1A CN115975612B (en) | 2022-06-16 | 2022-06-16 | Subway shield foaming agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210683545.1A CN115975612B (en) | 2022-06-16 | 2022-06-16 | Subway shield foaming agent and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115975612A true CN115975612A (en) | 2023-04-18 |
| CN115975612B CN115975612B (en) | 2024-02-09 |
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| CN202210683545.1A Active CN115975612B (en) | 2022-06-16 | 2022-06-16 | Subway shield foaming agent and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102430364A (en) * | 2011-09-09 | 2012-05-02 | 中交武汉港湾工程设计研究院有限公司 | Composite stratum waste soil improving foam additive |
| 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 |
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| CN108531187A (en) * | 2018-04-11 | 2018-09-14 | 北京市政建设集团有限责任公司 | A kind of balancing earth-pressure shielding machine construction foaming agent and preparation method |
| 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 |
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-
2022
- 2022-06-16 CN CN202210683545.1A patent/CN115975612B/en active Active
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| CN115975612B (en) | 2024-02-09 |
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