CN109809771A - A kind of shield synchronization slip casting - Google Patents
A kind of shield synchronization slip casting Download PDFInfo
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- CN109809771A CN109809771A CN201910231026.XA CN201910231026A CN109809771A CN 109809771 A CN109809771 A CN 109809771A CN 201910231026 A CN201910231026 A CN 201910231026A CN 109809771 A CN109809771 A CN 109809771A
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Abstract
The invention discloses a kind of shield synchronization slip castings, its raw material includes following components by weight: 100-150 parts of cement, 600-700 parts of sand, 150-210 parts of flyash, 30-35 parts of dicalcium powder, 1-1.5 parts of cellulose ether, 40-50 parts of sodium base bentonite, 20-40 parts of outer-penetrating agent, 10-20 parts of desulfurization gypsum powder, 550-650 parts of water, 20-30 parts of silicon powder, 10-20 parts of lime, the shield synchronization slip casting, the slurry of preparation mobility with higher and anti-shrink, with good stability and concreteness, it can be injected in stratum by shield support ring and shield tail duct system, industrial waste flyash has largely been used simultaneously, environmental protection and energy saving, using 42.5R ordinary portland cement as synchronous grouting material, to improve slip casting knot The corrosion resistance of stone body is in section of jurisdiction in the package of corrosion-resistant slip casting Seed harvest, weakens corrosion of the underground water to section of jurisdiction concrete, and can fill as early as possible annular gap makes section of jurisdiction support stratum as early as possible, prevents ground deformation excessive and jeopardizes ambient enviroment safety.
Description
Technical field
The present invention relates to tunnel grouting technical field more particularly to a kind of shield synchronization slip castings.
Background technique
What shield synchronization slip casting carried out while being applied in shield tunnel propulsion, main effect is exactly control ground
The sedimentation and protection path in face, are subjected to displacement it not.After scultellum is detached from shield tail, it will form together between the soil body and section of jurisdiction
Width is the annular space of 3.5mm or so.The purpose of synchronous grouting is to fill annular gap as early as possible and support section of jurisdiction as early as possible
Stratum prevents ground deformation excessive and jeopardizes ambient enviroment safety, while as waterproof outside section of jurisdiction and structural reinforcement, but tradition
Shield synchronization slip casting there are problems, fluidity of slurry and anti-shrink are insufficient, and stability and concreteness are inadequate, thus can not
Can be injected in stratum by shield support ring and shield tail duct system well, the use of material could not be in view of environmental protection
Energy conservation, therefore the realization for being able to solve a kind of shield synchronization slip casting of problems is imperative.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the existing defects, provides a kind of shield synchronization slip casting, the shield of preparation
Structure synchronous grouting has higher mobility and anti-shrink, and with good stability and concreteness can pass through shield support ring
In shield tail duct system injection stratum, while industrial waste flyash largely is used, environmental protection and energy saving can be solved effectively
The problems in background technique.
To achieve the goals above, present invention employs following technical solutions:
A kind of shield synchronization slip casting, raw material include following components by weight: 100-150 parts of cement, sand 600-700
Part, 150-210 parts of flyash, 30-35 parts of dicalcium powder, 1-1.5 parts of cellulose ether, 40-50 parts of sodium base bentonite, outer-penetrating agent 20-
40 parts, 10-20 parts of desulfurization gypsum powder, 550-650 parts of water, 20-30 parts of silicon powder, 10-20 parts of lime.
As a preferred technical solution of the present invention, the cement is 42.5R portland cement.
As a preferred technical solution of the present invention, the outer-penetrating agent is polyacrylamide dry powder, polycarboxylate and hydroxyl
Three kinds in ethyl cellulose, and polyacrylamide dry powder, polycarboxylate and hydroxyethyl cellulose are mixed by weight 1:1:1.
As a preferred technical solution of the present invention, the cement and flyash are mixed by weight 1:1-1:2.1.
As a preferred technical solution of the present invention, the fineness modulus of the sand is 1.5-1.7, cement content less than 3%,
Moisture content is less than 0.5% after sand is dried.
As a preferred technical solution of the present invention, the raw material further includes 5-10 parts of seawater mud by weight.
As a preferred technical solution of the present invention, the raw material further includes 10-20 parts of waterglass by weight.
Beneficial to benefit: in the present invention, the shield synchronization slip casting of preparation has higher mobility and anti-shrink, has good
Stability and concreteness can be injected in stratum by shield support ring and shield tail duct system, while largely use work
Industry waste material flyash, environmental protection and energy saving.
Specific embodiment
Below in conjunction with embodiment of the present invention, technical solution in the embodiment of the present invention is clearly and completely retouched
It states, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the present invention
In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
The present invention the following technical schemes are provided:
Embodiment one: in the mixing drum of blender add 360 parts of water, later successively add 100 parts of cement, 600 parts of sand,
150 parts of flyash, 30 parts of dicalcium powder, 1 part of cellulose ether, 40 parts of sodium base bentonite, 10 parts of desulfurization gypsum powder, 20 parts of silicon powder, stone
10 parts of ash, cement make section of jurisdiction be in corrosion resistant using 42.5R ordinary portland cement to improve the corrosion resistance of slip casting Seed harvest
In the package for losing slip casting Seed harvest, weaken corrosion of the underground water to section of jurisdiction concrete, the viscosity of cellulose ether more high-moisture-retention more
It is good, due to containing hydroxyl and ehter bond in cellulosic structure, hydroxyl and oxygen atom in ehter bond group and associated water molecules at hydrogen bond,
Free water is set to become to combine water, winding water, to play water retention, the viscosity of cellulose ether more high-moisture-retention is better, due to
Contain hydroxyl and ehter bond in cellulosic structure, hydroxyl and oxygen atom in ehter bond group and associated water molecules make to dissociate at hydrogen bond
Water becomes to combine water, and winding water, to play water retention, admixture of the flyash as slurry has very strong water imbibition,
Dicalcium powder can reduce production cost, can also increase the toughness and intensity of product, its soliquid touching of sodium base bentonite
Denaturation, viscosity, lubricity are good, and pH value is high, and thermal stability is good, there is higher plasticity and stronger caking property, hot green tensile strength
With dry compression height, silicon powder is added, slurry intensity after molding can be improved, lime is slurry impermeability after molding, resistance to compression
Intensity and water resistance are improved, and desulfurization gypsum powder plays gelatification, are stirred at low speed 10 minutes, are sufficiently stirred at room temperature
Afterwards, it is added to by 20 parts of polyacrylamide dry powder, polycarboxylate and hydroxyethyl cellulose by weight 1:1:1 mixed material
In mixing drum, and 5 parts of seawater mud, 10 parts of waterglass and 190 parts of remaining water is added, continues to stir at low speed to abundant without agglomeration
Until mixing, compactness, intensity, impermeability, frost resistance and water resistance of material etc. is can be improved in waterglass, and hydroxyethyl cellulose exists
When dissolving in water, oxygen atom on hydroxyl and ehter bond and associated water molecules on long-chain make water lose flowability at hydrogen bond, swim
From water no longer " freedom ", cause solution retrogradation, to generate the effect of thickening water conservation to mortar, polyacrylamide dry powder is in water
When dissolution, anionic macromolecule is dissociated into the anion of multi-charge macromolecule in the cement slurry of alkalinity, and homophilic charge is strong
The strong effect of repelling each other makes Coiling-type macromolecular become curve-like, increases solution viscosity, can play thickening effect, and polycarboxylate is a kind of
Cement dispersants, high-performance water reducing agent, with volume is low, function of slump protection is good, concrete contraction percentage is low, adjustability on molecular structure
By force, it is delivered in shield slurry storage tank by single slurries that transportation system finishes mixing later, shield grouting system builds shield tail
It builds gap and synchronizes slip casting.
Use cement mortar as synchronous grouting material, the slurry material have that calculus rate is high, consolidating strength is high, durability is good and
The characteristics of capable of preventing underground water from leaching, cement uses 42.5R ordinary portland cement, to improve the corrosion-resistant of slip casting Seed harvest
Property, it is in section of jurisdiction in the package of corrosion-resistant slip casting Seed harvest, weakens corrosion of the underground water to section of jurisdiction concrete.
Embodiment two:
400 parts of water are added in the mixing drum of blender, successively add 130 parts of cement, 650 parts of sand, flyash 180 later
Part, 32 parts of dicalcium powder, 1.2 parts of cellulose ether, 45 parts of sodium base bentonite, 15 parts of desulfurization gypsum powder, 25 parts of silicon powder, 15 parts of lime,
Cement makes section of jurisdiction be in corrosion-resistant slip casting knot using 42.5R ordinary portland cement to improve the corrosion resistance of slip casting Seed harvest
In the package of stone body, weaken corrosion of the underground water to section of jurisdiction concrete, the viscosity of cellulose ether more high-moisture-retention is better, due to fibre
It ties up and contains hydroxyl and ehter bond in plain structure, hydroxyl and oxygen atom in ehter bond group and associated water molecules make free water at hydrogen bond
Become to combine water, winding water, to play water retention, the viscosity of cellulose ether more high-moisture-retention is better, due to cellulose knot
Contain hydroxyl and ehter bond in structure, hydroxyl and oxygen atom in ehter bond group and associated water molecules make free water become to tie at hydrogen bond
Heshui, winding water, to play water retention, admixture of the flyash as slurry has very strong water imbibition, and dicalcium powder can
To reduce production cost, the toughness and intensity of product can also be increased, it is sodium base bentonite its soliquid thixotropy, viscous
Degree, lubricity are good, and pH value is high, and thermal stability is good, there is higher plasticity and stronger caking property, and hot green tensile strength and dry-pressing are strong
Degree is high, adds silicon powder, can be improved slurry intensity after molding, and lime is slurry impermeability after molding, compression strength and resistance to
Aqueous to be improved, desulfurization gypsum powder plays gelatification, stirs at low speed at room temperature 10 minutes, after being sufficiently stirred, by 30
The polyacrylamide dry powder, polycarboxylate and hydroxyethyl cellulose of part are added in mixing drum by weight 1:1:1 mixed material,
And 8 parts of seawater mud, 15 parts of waterglass and 200 parts of remaining water is added, continue to stir at low speed until no agglomeration is sufficiently mixed,
Compactness, intensity, impermeability, frost resistance and water resistance of material etc. can be improved in waterglass, and hydroxyethyl cellulose dissolves in water
When, oxygen atom on hydroxyl and ehter bond and associated water molecules on long-chain make water lose flowability, free water is no longer at hydrogen bond
" freedom " causes solution retrogradation, so that the effect of thickening water conservation is generated to mortar, when polyacrylamide dry powder dissolves in water,
Anionic macromolecule is dissociated into the anion of multi-charge macromolecule in the cement slurry of alkalinity, and homophilic charge is repelled each other work strongly
With making Coiling-type macromolecular become curve-like, increase solution viscosity, thickening effect can be played, polycarboxylate is a kind of cement dispersion
Agent, high-performance water reducing agent, have volume is low, function of slump protection is good, concrete contraction percentage is low, adjustability is strong on molecular structure, later
Be delivered in shield slurry storage tank by single slurries that transportation system finishes mixing, shield grouting system to shield tail structure void into
Row synchronous grouting.
Use cement mortar as synchronous grouting material, the slurry material have that calculus rate is high, consolidating strength is high, durability is good and
The characteristics of capable of preventing underground water from leaching, cement uses 42.5R ordinary portland cement, to improve the corrosion-resistant of slip casting Seed harvest
Property, it is in section of jurisdiction in the package of corrosion-resistant slip casting Seed harvest, weakens corrosion of the underground water to section of jurisdiction concrete.
Embodiment three:
435 parts of water are added in the mixing drum of blender, successively add 150 parts of cement, 700 parts of sand, flyash 210 later
Part, 35 parts of dicalcium powder, 1.5 parts of cellulose ether, 50 parts of sodium base bentonite, 20 parts of desulfurization gypsum powder, 30 parts of silicon powder, 20 parts of lime,
Cement makes section of jurisdiction be in corrosion-resistant slip casting knot using 42.5R ordinary portland cement to improve the corrosion resistance of slip casting Seed harvest
In the package of stone body, weaken corrosion of the underground water to section of jurisdiction concrete, the viscosity of cellulose ether more high-moisture-retention is better, due to fibre
It ties up and contains hydroxyl and ehter bond in plain structure, hydroxyl and oxygen atom in ehter bond group and associated water molecules make free water at hydrogen bond
Become to combine water, winding water, to play water retention, the viscosity of cellulose ether more high-moisture-retention is better, due to cellulose knot
Contain hydroxyl and ehter bond in structure, hydroxyl and oxygen atom in ehter bond group and associated water molecules make free water become to tie at hydrogen bond
Heshui, winding water, to play water retention, admixture of the flyash as slurry has very strong water imbibition, and dicalcium powder can
To reduce production cost, the toughness and intensity of product can also be increased, it is sodium base bentonite its soliquid thixotropy, viscous
Degree, lubricity are good, and pH value is high, and thermal stability is good, there is higher plasticity and stronger caking property, and hot green tensile strength and dry-pressing are strong
Degree is high, adds silicon powder, can be improved slurry intensity after molding, and lime is slurry impermeability after molding, compression strength and resistance to
Aqueous to be improved, desulfurization gypsum powder plays gelatification, stirs at low speed at room temperature 10 minutes, after being sufficiently stirred, by 40
The polyacrylamide dry powder, polycarboxylate and hydroxyethyl cellulose of part are added in mixing drum by weight 1:1:1 mixed material,
And 10 parts of seawater mud, 20 parts of waterglass and 215 parts of remaining water is added, continue to stir at low speed to no agglomeration be sufficiently mixed for
Only, compactness, intensity, impermeability, frost resistance and water resistance of material etc. can be improved in waterglass, and hydroxyethyl cellulose is molten in water
Xie Shi, oxygen atom on hydroxyl and ehter bond and associated water molecules on long-chain make water lose flowability, free water is not at hydrogen bond
" freedom " again causes solution retrogradation, to generate the effect of thickening water conservation to mortar, polyacrylamide dry powder dissolves in water
When, anionic macromolecule is dissociated into the anion of multi-charge macromolecule, the strong phase of homophilic charge in the cement slurry of alkalinity
Reprimand effect makes Coiling-type macromolecular become curve-like, increases solution viscosity, can play thickening effect, polycarboxylate is a kind of cement
Dispersing agent, high-performance water reducing agent, have volume is low, function of slump protection is good, concrete contraction percentage is low, adjustability is strong on molecular structure,
It is delivered in shield slurry storage tank by single slurries that transportation system finishes mixing later, shield grouting system builds shield tail empty
Gap synchronizes slip casting.
Use cement mortar as synchronous grouting material, the slurry material have that calculus rate is high, consolidating strength is high, durability is good and
The characteristics of capable of preventing underground water from leaching, cement uses 42.5R ordinary portland cement, to improve the corrosion-resistant of slip casting Seed harvest
Property, it is in section of jurisdiction in the package of corrosion-resistant slip casting Seed harvest, weakens corrosion of the underground water to section of jurisdiction concrete.
Benefit of the invention: the shield synchronization slip casting of preparation has higher mobility and anti-shrink, has good stabilization
Property and concreteness, can be injected by shield support ring and shield tail duct system in stratum, while largely having used Industry Waste
Feed powder coal ash, environmental protection and energy saving.
Claims (7)
1. a kind of shield synchronization slip casting, it is characterised in that: its raw material includes following components by weight: 100-150 parts of cement, sand
600-700 parts, it is 150-210 parts of flyash, 30-35 parts of dicalcium powder, 1-1.5 parts of cellulose ether, 40-50 parts of sodium base bentonite, outer
Mix 20-40 parts of agent, 10-20 parts of desulfurization gypsum powder, 550-650 parts of water, 20-30 parts of silicon powder, 10-20 parts of lime.
2. a kind of shield synchronization slip casting according to claim 1, it is characterised in that: the cement is 42.5R silicate cement
Mud.
3. a kind of shield synchronization slip casting according to claim 1, it is characterised in that: the outer-penetrating agent is dry for polyacrylamide
Three kinds in powder, polycarboxylate and hydroxyethyl cellulose, and polyacrylamide dry powder, polycarboxylate and hydroxyethyl cellulose are by weight
Amount is mixed than 1:1:1.
4. a kind of shield synchronization slip casting according to claim 1, it is characterised in that: the cement and flyash are by weight
1:1-1:2.1 mixing.
5. a kind of shield synchronization slip casting according to claim 1, it is characterised in that: the fineness modulus of the sand is 1.5-
1.7, cement content is less than 3%, and moisture content is less than 0.5% after sand is dried.
6. a kind of shield synchronization slip casting according to claim 1, it is characterised in that: the raw material further includes sea by weight
5-10 parts of cement slurry.
7. a kind of shield synchronization slip casting according to claim 1, it is characterised in that: the raw material further includes water by weight
10-20 parts of glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910231026.XA CN109809771A (en) | 2019-03-26 | 2019-03-26 | A kind of shield synchronization slip casting |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910231026.XA CN109809771A (en) | 2019-03-26 | 2019-03-26 | A kind of shield synchronization slip casting |
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| CN201910231026.XA Pending CN109809771A (en) | 2019-03-26 | 2019-03-26 | A kind of shield synchronization slip casting |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022064A (en) * | 2020-01-01 | 2020-04-17 | 中铁四局集团有限公司 | Mud sinking prevention and grouting slurry for shield construction |
| CN112142403A (en) * | 2020-09-16 | 2020-12-29 | 贵州正和天筑科技有限公司 | Soil-stabilizing grouting material and preparation method thereof |
| CN112374800A (en) * | 2020-11-13 | 2021-02-19 | 衡阳市银利实业有限公司 | Material for reducing cement and improving concrete strength |
| CN112592138A (en) * | 2020-12-31 | 2021-04-02 | 中铁十局集团有限公司 | Single-component active synchronous mortar with controllable setting time and preparation method thereof |
| CN112592123A (en) * | 2021-01-06 | 2021-04-02 | 中铁十二局集团有限公司 | Shield grouting material, preparation method thereof and intelligent shield grouting material preparation device |
| CN114230224A (en) * | 2021-12-21 | 2022-03-25 | 青岛市地铁六号线有限公司 | Low-carbon anti-permeability type full-solid waste grouting material and preparation method and application thereof |
| CN115286340A (en) * | 2022-07-21 | 2022-11-04 | 北京安科兴业科技股份有限公司 | Synchronous grouting material based on muddy shield soil and preparation method thereof |
| CN115611550A (en) * | 2022-12-07 | 2023-01-17 | 中煤能源研究院有限责任公司 | Coal mine slurry filling thickening agent and preparation method thereof |
| CN115819062A (en) * | 2022-12-02 | 2023-03-21 | 中铁建华南建设(广州)高科技产业有限公司 | Synchronous grouting dry material, preparation method thereof and large-diameter shield slurry for water-rich sand layer |
| CN117602880A (en) * | 2023-10-18 | 2024-02-27 | 中流砥柱(广州)新材料有限公司 | Shield mortar |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022064A (en) * | 2020-01-01 | 2020-04-17 | 中铁四局集团有限公司 | Mud sinking prevention and grouting slurry for shield construction |
| CN112142403A (en) * | 2020-09-16 | 2020-12-29 | 贵州正和天筑科技有限公司 | Soil-stabilizing grouting material and preparation method thereof |
| CN112374800A (en) * | 2020-11-13 | 2021-02-19 | 衡阳市银利实业有限公司 | Material for reducing cement and improving concrete strength |
| CN112592138B (en) * | 2020-12-31 | 2022-07-12 | 中铁十局集团有限公司 | Single-component active synchronous mortar with controllable setting time and preparation method thereof |
| CN112592138A (en) * | 2020-12-31 | 2021-04-02 | 中铁十局集团有限公司 | Single-component active synchronous mortar with controllable setting time and preparation method thereof |
| CN112592123A (en) * | 2021-01-06 | 2021-04-02 | 中铁十二局集团有限公司 | Shield grouting material, preparation method thereof and intelligent shield grouting material preparation device |
| CN112592123B (en) * | 2021-01-06 | 2022-08-02 | 中铁十二局集团有限公司 | Shield grouting material, preparation method thereof and intelligent shield grouting material preparation device |
| CN114230224A (en) * | 2021-12-21 | 2022-03-25 | 青岛市地铁六号线有限公司 | Low-carbon anti-permeability type full-solid waste grouting material and preparation method and application thereof |
| CN114230224B (en) * | 2021-12-21 | 2023-08-25 | 青岛市地铁六号线有限公司 | Low-carbon impervious full-solid waste grouting material and preparation method and application thereof |
| CN115286340A (en) * | 2022-07-21 | 2022-11-04 | 北京安科兴业科技股份有限公司 | Synchronous grouting material based on muddy shield soil and preparation method thereof |
| CN115819062A (en) * | 2022-12-02 | 2023-03-21 | 中铁建华南建设(广州)高科技产业有限公司 | Synchronous grouting dry material, preparation method thereof and large-diameter shield slurry for water-rich sand layer |
| CN115611550A (en) * | 2022-12-07 | 2023-01-17 | 中煤能源研究院有限责任公司 | Coal mine slurry filling thickening agent and preparation method thereof |
| CN117602880A (en) * | 2023-10-18 | 2024-02-27 | 中流砥柱(广州)新材料有限公司 | Shield mortar |
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Application publication date: 20190528 |