CN108531187A - A kind of balancing earth-pressure shielding machine construction foaming agent and preparation method - Google Patents
A kind of balancing earth-pressure shielding machine construction foaming agent and preparation method Download PDFInfo
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- CN108531187A CN108531187A CN201810319757.5A CN201810319757A CN108531187A CN 108531187 A CN108531187 A CN 108531187A CN 201810319757 A CN201810319757 A CN 201810319757A CN 108531187 A CN108531187 A CN 108531187A
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- foaming agent
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- shielding machine
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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
- C09K17/14—Soil-conditioning materials or soil-stabilising materials containing organic compounds only
- C09K17/36—Compounds having one or more carbon-to-silicon linkages
- C09K17/38—Siloxanes
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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)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a kind of balancing earth-pressure shielding machine construction foaming agent and preparation methods, consist of the following mass percentage components：Foaming agent 5% 12%, foaming aids 1% 5%, foam stabilizer 1% 5%, emulsifier 1% 5%, thickener 0.5% 1%, preservative 0.1% 0.5%, water 80% 93%；With good foaming effect, lower surface tension can generate a large amount of and fine uniform foam, and sediment improvement effect is good, adapts to more stratum and high viscosity cohesive soil stratum；The preparation method is compared with temperature is turned up to 30 DEG C when technology of preparing currently on the market is needed preparation, it can prepare at normal temperatures, reduce cost, it can largely prepare in a short time, safety and environmental protection, strong applicability, it is high for the adaptability on acid stratum and alkaline stratum, versatility is good, can preferably keep using effect, disclosure satisfy that the requirement of different regions different soil shield-tunneling construction.
Description
Technical field
The present invention relates to earth pressure balanced shield, EPBS construction material technical field, more particularly to a kind of balancing earth-pressure shielding machine construction
With foaming agent and preparation method.
Background technology
Currently, Beijing Subway tunnel is mainly constructed using earth pressure balanced shield, EPBS, remarkable in economical benefits.Soil pressure is flat
In weighing apparatus formula shield-tunneling construction, as the medium that support excavation face is stablized, excavates the dregs to get off and decision is played to the stabilization of excavation face
The effect of property；It is constantly discharged by spiral dumper again simultaneously, whether soil nature quality directly affects unearthed smooth.
The key of earth pressure balanced shield, EPBS construction is dregs in soil cabin by having needed for shield-tunneling construction after being sufficiently mixed
Creeping character state can form stable barometric gradient in spiral dumper and maintain soil cabin pressure, and realization can smoothly be discharged and connect
Continuous driving.The soil body in good modeling fluidized state can effectively transmit pressure, close underground water, reduce driving torque, subtract
Few equipment attrition, accelerates construction progress, increases economic efficiency, and ensures construction safety.In many cases, being opened under natural conditions
The soil body of digging can not meet the requirement of soil body creeping.At this moment soil improvement must be just carried out, that is, adds soil body creeping and changes
Good timber material, such as foaming agent, bentonite, high molecular material etc..Most widely used sediment improvement material is foam, currently on the market
Froth pulp has hundreds of, but there is a problem of that kind is complicated, performance is very different, and the shield of portion's country's development and production big absolutely is used
The universal foaming effect of foaming agent is poor, and bubble is uneven, and half-life period cannot be satisfied requirement, to bringing security risk on shield-tunneling construction.
A kind of shield machine disclosed in Patent No. 201510208812.X provides a kind of shield machine foam with foaming agent
Agent, by lauryl sodium sulfate, sodium sulfate of polyethenoxy ether of fatty alcohol, α-alkene sodium olefin sulfonate, modified silicone resin polyethers lotion,
Water is prepared by a certain percentage, improves the working performance of soil, Zinc fractions is made to be plastically deformed, to provide the branch of uniform, controllable
Bulging power.A kind of Soil pressure balance shield foam agent disclosed in Patent No. 201710266039.1 and preparation method thereof, including with
The component of lower parts by weight：10-20 parts of sodium sulfate of polyethenoxy ether of fatty alcohol, 10-30 parts of lauryl sodium sulfate, 10-20 parts one
Sodium olefin sulfonate, 1-10 parts of cocounut oil phthalein aminocarbonyl propyl glycine betaines, 1-10 parts of cocoyl glucose former times, 0-2 parts of thickeners, function admirable
And production cost is low, can substantially reduce the cost of earth pressure balanced shield, EPBS construction.Foaming agent in the patent exists to stratum
Acid-base value bad adaptability the problem of, encounter heterogeneity stratum be easy influence foaming agent using effect.Once foam fails,
Cause tool wear than more serious, helical feed barrel wall is worn through, and ground caves in, and will cause larger engineering accident.
Invention content
The purpose of the present invention is to provide a kind of balancing earth-pressure shielding machine construction foaming agent and preparation methods, for acidity
The adaptability on stratum and alkaline stratum is high, and versatility is good, can preferably keep using effect, and manufacturing cost is low, above-mentioned to solve
The problem of being proposed in background technology.
To achieve the above object, the present invention provides the following technical solutions：
A kind of balancing earth-pressure shielding machine construction foaming agent, consists of the following mass percentage components：
Foaming agent 5%-12%, foaming aids 1%-5%, foam stabilizer 1%-5%, emulsifier 1%-5%, thickener 0.5%-
1%, preservative 0.1%-0.5%, water 80%-93%.
As a further solution of the present invention：The foaming agent is that the group of following parts by weight is grouped as：Fatty alcohol polyoxy second
7-9 parts of alkene ether sodium sulfate, 12-17 parts of lauryl sodium sulfate, 3-5 parts of sodium alkyl sulfate, α -1-4 parts of sodium olefin sulfonate.
As further scheme of the invention：The foaming aids are that the group of following parts by weight is grouped as：Fatty alcohol sulphuric acid
15-17 parts of sodium, 8-10 parts of cocoanut fatty acid diethanolamide.
As further scheme of the invention：The foam stabilizer is that the group of following parts by weight is grouped as：Coconut oleoyl amine third
4-6 parts of base glycine betaine, 2-3 parts of hexadecyltrimethylammonium chloride, 17-19 parts of silicones polyethers lotion.
As further scheme of the invention：The emulsifier is that the group of following parts by weight is grouped as：Detergent alkylate
6-8 parts of sodium sulfonate, 3-6 parts of lauryl sodium sulfate.
As further scheme of the invention：The thickener is hydroxypropyl guar gum.
As further scheme of the invention：Preservative is chlormethylisothiazo,ine ketone.
A kind of balancing earth-pressure shielding machine construction foaming agent preparation method, steps are as follows：
It injects water under room temperature in a reservoir first, foaming agent is then added, blender is opened, with the speed of 200-300r/min
Degree, which is stirred to foaming agent, to be completely dissolved；
Emulsifier is added, persistently stirs 10min, sequentially adds foam stabilizer, thickener, stirred with the speed of 400-500r/min
It mixes 15min, preservative is added, after stirring evenly to obtain the final product.
Compared with prior art, the beneficial effects of the invention are as follows：With good foaming effect, lower surface tension,
A large amount of and fine uniform foam can be generated, sediment improvement effect is good, adapts to more stratum and high viscosity cohesive soil stratum；
The preparation method reduces cost compared with temperature is turned up to 30 DEG C when technology of preparing currently on the market is needed preparation,
It can largely prepare in a short time, safety and environmental protection, strong applicability, versatility high for the adaptability on acid stratum and alkaline stratum
It is good, using effect can be preferably kept, disclosure satisfy that the requirement of different regions different soil shield-tunneling construction.
Part is illustrated to embody by further advantage, target and the feature of the present invention by following, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
More clearly to illustrate the structure feature and effect of the present invention, to carry out the present invention with reference to specific embodiment
It is described in detail.
Specific implementation mode
With reference to embodiment, the present invention is described in further detail, to enable those skilled in the art with reference to specification
Word can be implemented according to this.
Embodiment 1
A kind of balancing earth-pressure shielding machine construction foaming agent, consists of the following mass percentage components：
Foaming agent 5%, foaming aids 1%, foam stabilizer 1%, emulsifier 1%, thickener 0.5%, preservative 0.1%, more than water
Amount.
The foaming agent is that the group of following parts by weight is grouped as：7 parts of sodium sulfate of polyethenoxy ether of fatty alcohol, dodecyl sulphur
12 parts of sour sodium, 3 parts of sodium alkyl sulfate, 1 part of α-sodium olefin sulfonate.
The foaming aids are that the group of following parts by weight is grouped as：15 parts of sodium alkyl sulfate, coco-nut oil fatty acid diethanol
8 parts of amide.
The foam stabilizer is that the group of following parts by weight is grouped as：4 parts of Cocoamidopropyl betaine, cetyl trimethyl
2 parts of ammonium chloride, 17 parts of silicones polyethers lotion.
The emulsifier is that the group of following parts by weight is grouped as：6 parts of neopelex, lauryl sodium sulfate 3
Part.
Foaming agent optimum concentration prepared by this example is 3%, is obtained through overtesting, which is 20
Times, half-life period 25min, shield-tunneling construction onsite application sediment improvement works well.
Embodiment 2
A kind of balancing earth-pressure shielding machine construction foaming agent, consists of the following mass percentage components：
Foaming agent 6%, foaming aids 2%, foam stabilizer 2%, emulsifier 4%, thickener 1%, preservative 0.2%, water surplus.
The foaming agent is that the group of following parts by weight is grouped as：7 parts of sodium sulfate of polyethenoxy ether of fatty alcohol, dodecyl sulphur
17 parts of sour sodium, 5 parts of sodium alkyl sulfate, 1 part of α-sodium olefin sulfonate.
The foaming aids are that the group of following parts by weight is grouped as：15 parts of sodium alkyl sulfate, coco-nut oil fatty acid diethanol
8 parts of amide.
The foam stabilizer is that the group of following parts by weight is grouped as：6 parts of Cocoamidopropyl betaine, cetyl trimethyl
2-3 parts of ammonium chloride, 17 parts of silicones polyethers lotion.
The emulsifier is that the group of following parts by weight is grouped as：6 parts of neopelex, lauryl sodium sulfate 4
Part.
Foaming agent optimum concentration prepared by this example is 3%, is obtained through overtesting, which is 18
Times, half-life period 20min, shield-tunneling construction onsite application sediment improvement works well.
Embodiment 3
A kind of balancing earth-pressure shielding machine construction foaming agent, consists of the following mass percentage components：
Foaming agent 8%, foaming aids 3%, foam stabilizer 3%, emulsifier 3%, thickener 1%, preservative 0.4%, water surplus.
The foaming agent is that the group of following parts by weight is grouped as：8 parts of sodium sulfate of polyethenoxy ether of fatty alcohol, dodecyl sulphur
13 parts of sour sodium, 3 parts of sodium alkyl sulfate, 1 part of α-sodium olefin sulfonate.
The foaming aids are that the group of following parts by weight is grouped as：15 parts of sodium alkyl sulfate, coco-nut oil fatty acid diethanol
8 parts of amide.
The foam stabilizer is that the group of following parts by weight is grouped as：5 parts of Cocoamidopropyl betaine, cetyl trimethyl
3 parts of ammonium chloride, 19 parts of silicones polyethers lotion.
The emulsifier is that the group of following parts by weight is grouped as：7 parts of neopelex, lauryl sodium sulfate 5
Part.
Foaming agent optimum concentration prepared by this example is 3%, is obtained through overtesting, which is 17
Times, half-life period 19min, shield-tunneling construction onsite application sediment improvement works well.
Embodiment 4
A kind of balancing earth-pressure shielding machine construction foaming agent, consists of the following mass percentage components：
Foaming agent 10%, foaming aids 4%, foam stabilizer 4%, emulsifier 4%, thickener 0.5%, preservative 0.1%, more than water
Amount.
The foaming agent is that the group of following parts by weight is grouped as：9 parts of sodium sulfate of polyethenoxy ether of fatty alcohol, dodecyl sulphur
12 parts of sour sodium, 3 parts of sodium alkyl sulfate, 3 parts of α-sodium olefin sulfonate.
The foaming aids are that the group of following parts by weight is grouped as：15 parts of sodium alkyl sulfate, coco-nut oil fatty acid diethanol
10 parts of amide.
The foam stabilizer is that the group of following parts by weight is grouped as：5 parts of Cocoamidopropyl betaine, cetyl trimethyl
2 parts of ammonium chloride, 17 parts of silicones polyethers lotion.
The emulsifier is that the group of following parts by weight is grouped as：6 parts of neopelex, lauryl sodium sulfate 6
Part.
Foaming agent optimum concentration prepared by this example is 3%, is obtained through overtesting, which is 19
Times, half-life period 30min, shield-tunneling construction onsite application sediment improvement works well.
Embodiment 5
A kind of balancing earth-pressure shielding machine construction foaming agent, consists of the following mass percentage components：
Foaming agent 12%, foaming aids 5%, foam stabilizer 5%, emulsifier 5%, thickener 1%, preservative 0.5%, more than water
Amount.
The foaming agent is that the group of following parts by weight is grouped as：9 parts of sodium sulfate of polyethenoxy ether of fatty alcohol, dodecyl sulphur
17 parts of sour sodium, 5 parts of sodium alkyl sulfate, 4 parts of α-sodium olefin sulfonate.
The foaming aids are that the group of following parts by weight is grouped as：17 parts of sodium alkyl sulfate, coco-nut oil fatty acid diethanol
10 parts of amide.
The foam stabilizer is that the group of following parts by weight is grouped as：6 parts of Cocoamidopropyl betaine, cetyl trimethyl
3 parts of ammonium chloride, 19 parts of silicones polyethers lotion.
The emulsifier is that the group of following parts by weight is grouped as：8 parts of neopelex, lauryl sodium sulfate 6
Part.
Foaming agent optimum concentration prepared by this example is 3%, is obtained through overtesting, which is 18
Times, half-life period 28min, shield-tunneling construction onsite application sediment improvement works well.
In order to further verify the impact of performance of this product, the experiment of sediment improvement Contrast on effect is carried out, temperature control exists
25 DEG C, use simulation shield cutter mixing plant, take areal sand-pebble layer, stirred with 24r/min, with this condition,
Sediment improvement is carried out using identical volume different foam concentration, improved effect is as shown in the table.
Unit：(mm)
The better embodiment of this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party
Formula, one skilled in the relevant art within the scope of knowledge, can also be under the premise of not departing from this patent objective
It makes a variety of changes.
Claims (8)
1. a kind of balancing earth-pressure shielding machine construction foaming agent, which is characterized in that consist of the following mass percentage components：Hair
Infusion 5%-12%, foaming aids 1%-5%, foam stabilizer 1%-5%, emulsifier 1%-5%, thickener 0.5%-1%, preservative
0.1%-0.5%, water 80%-93%.
2. balancing earth-pressure shielding machine construction foaming agent according to claim 1, which is characterized in that the foaming agent be with
The group of lower parts by weight is grouped as：7-9 parts of sodium sulfate of polyethenoxy ether of fatty alcohol, 12-17 parts of lauryl sodium sulfate, fatty alcohol sulphur
Sour sodium 3-5 parts, α -1-4 parts of sodium olefin sulfonate.
3. balancing earth-pressure shielding machine construction foaming agent according to claim 1, which is characterized in that the foaming aids be with
The group of lower parts by weight is grouped as：15-17 parts of sodium alkyl sulfate, 8-10 parts of cocoanut fatty acid diethanolamide.
4. balancing earth-pressure shielding machine construction foaming agent according to claim 1, which is characterized in that the foam stabilizer be with
The group of lower parts by weight is grouped as：4-6 parts of Cocoamidopropyl betaine, 2-3 parts of hexadecyltrimethylammonium chloride, silicones are poly-
17-19 parts of ether lotion.
5. balancing earth-pressure shielding machine construction foaming agent according to claim 1, which is characterized in that the emulsifier be with
The group of lower parts by weight is grouped as：6-8 parts of neopelex, 3-6 parts of lauryl sodium sulfate.
6. balancing earth-pressure shielding machine construction foaming agent according to claim 1, which is characterized in that the thickener is hydroxyl
Propyl guar gum.
7. balancing earth-pressure shielding machine construction foaming agent according to claim 1, which is characterized in that preservative is chloromethyl
Isothiazolinone.
8. a kind of preparation side of the preparation method of balancing earth-pressure shielding machine construction foaming agent as described in claim 1-7 is any
Method, which is characterized in that steps are as follows：
The first step：It injects water under room temperature in a reservoir first, foaming agent is then added, blender is opened, with 200-300r/min
Speed be stirred to foaming agent and be completely dissolved；
Second step：Emulsifier is added, persistently stirs 10min, sequentially adds foam stabilizer, thickener, with the speed of 400-500r/min
Degree stirring 15min, is added preservative, after stirring evenly to obtain the final product.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113137237A (en) * | 2021-04-14 | 2021-07-20 | 中交一公局厦门工程有限公司 | Soil body modifier for weakening gushing of shield in water-rich sand layer and preparation and application thereof |
| 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 |
| CN114058375A (en) * | 2021-12-06 | 2022-02-18 | 成都威华机电设备有限公司 | Environment-friendly dry powder foaming agent for shield construction and preparation method 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 |
| CN115975612A (en) * | 2022-06-16 | 2023-04-18 | 桂林理工大学 | Subway shield foaming agent and preparation method thereof |
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| CN106630727A (en) * | 2015-11-02 | 2017-05-10 | 中昊(大连)化工研究设计院有限公司 | Alkali-resistance shielding foam agent |
| CN107603629A (en) * | 2017-09-18 | 2018-01-19 | 广东省建筑科学研究院集团股份有限公司 | A kind of environment-friendly type shield foaming agent and preparation method thereof |
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| 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 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113137237A (en) * | 2021-04-14 | 2021-07-20 | 中交一公局厦门工程有限公司 | Soil body modifier for weakening gushing of shield in water-rich sand layer and preparation and application thereof |
| 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 |
| CN114058375A (en) * | 2021-12-06 | 2022-02-18 | 成都威华机电设备有限公司 | Environment-friendly dry powder foaming agent for shield construction and preparation method 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 |
| CN114426848B (en) * | 2022-01-21 | 2023-11-10 | 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 |
| CN115975612A (en) * | 2022-06-16 | 2023-04-18 | 桂林理工大学 | Subway shield foaming agent and preparation method thereof |
| CN115975612B (en) * | 2022-06-16 | 2024-02-09 | 桂林理工大学 | Subway shield foaming agent and preparation method thereof |
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Application publication date: 20180914 |