CN103951335B - Major diameter slurry shield discarded slurry recycles synchronous slip casting - Google Patents

Major diameter slurry shield discarded slurry recycles synchronous slip casting Download PDF

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Publication number
CN103951335B
CN103951335B CN201410173446.4A CN201410173446A CN103951335B CN 103951335 B CN103951335 B CN 103951335B CN 201410173446 A CN201410173446 A CN 201410173446A CN 103951335 B CN103951335 B CN 103951335B
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China
Prior art keywords
slurry
discarded slurry
slip casting
recycles
major diameter
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CN201410173446.4A
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CN103951335A (en
Inventor
徐兴居
戴洪伟
陈健
王华伟
孔玉清
李东升
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China Railway fourteen bureau group big Shield Construction Engineering Co., Ltd.
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China Railway 14th Bureau Group Co Ltd
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Priority to CN201310677336.7 priority
Priority to CN201310677336 priority
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/91Use of waste materials as fillers for mortars or concrete

Abstract

Major diameter slurry shield discarded slurry recycles synchronous slip casting, prepares every cubic metre of product and comprises following weight raw material: cement 100-180kg, calcium hydroxide 50-120kg, flyash 120-350kg, sand 1300-1500kg, discarded slurry 500-800kg, water-retaining admixture 0.5-2kg, water reducer 0.5-2kg, set retarder 0.5-2kg, air entraining agent 0.5-2kg. The present invention is without adding expensive bentonite, and every side's mortar is saved bentonite 100kg left and right, effectively reduces costs, and the present invention has that pump-conveying property is good, water-retaining property, lubricity, mobility and the advantage such as filling is good, and discarded slurry is made full use of.

Description

Major diameter slurry shield discarded slurry recycles synchronous slip casting
Technical field
The present invention relates to a kind of slurry shield discarded slurry field, is exactly that a kind of major diameter slurry shield discarded slurry recycles synchronous slip casting.
Background technology
In slurry shield process, produce a large amount of discarded slurries, discarded slurry re-injection after processing, to underground, in the work progress in tunnel, makes full use of discarded slurry, for reducing financial cost, reduces discharge environmental protection important in inhibiting. At present, bentonite clay particle disperses to form suspension in water, has good pulping, and expensive use amount is large, and financial cost is high. Cement adding amount is little, if recruitment is too much, easily cause setting time short, pipe in flow not smooth problem, sand skewness, easily causes lamination; Mud easily water suction too much expands, and causes to transport middlely by pipeline protuberance cracking, and security is lower.
Summary of the invention
The object of this invention is to provide a kind of major diameter slurry shield discarded slurry and recycle synchronous slip casting, there is cheap, setting time of long, mobility advantages of higher.
The present invention for achieving the above object, be achieved through the following technical solutions: major diameter slurry shield discarded slurry recycles synchronous slip casting, prepare every cubic metre of product and comprise following weight raw material: cement 100-180kg, calcium hydroxide 50-120kg, flyash 120-350kg, sand 1300-1500kg, discarded slurry 500-800kg, water-retaining admixture 0.5-2kg, water reducer 0.5-2kg, set retarder 0.5-2kg, air entraining agent 0.5-2kg.
The following particle of 0.075mm of described discarded slurry particle is that the following particle of 99.6%, 0.005mm is 44%, and proportion is 1.15~1.45.
Described water-retaining admixture is methylcellulose, hydroxypropyl methyl fiber or mortar densification powder.
Described water reducer is lignosulfonates, casein or powder polycarboxylate.
Described set retarder is wooden sodium, natrium citricum or sodium pyrophosphate.
Described air entraining agent is colophonium pyrolytic polymer, alkylsulfonate or sodium alkyl sulfate.
Prepare every cubic metre of product and comprise following weight raw material: cement 180kg, calcium hydroxide 50kg, flyash 265kg, sand 1300kg, discarded slurry 500kg, methylcellulose 1kg, lignosulfonates 2kg, wooden sodium 1.5kg, colophonium pyrolytic polymer 0.5kg.
Prepare every cubic metre of product and comprise following weight raw material: cement 100kg, calcium hydroxide 95kg, flyash 180kg, sand 1500kg, discarded slurry 570kg, hydroxypropyl methyl fiber 0.5kg, casein 1kg, natrium citricum 2kg, alkylsulfonate 1.5kg.
Prepare every cubic metre of product and comprise following weight raw material: cement 160kg, calcium hydroxide 70kg, flyash 285kg, sand 1350kg, discarded slurry 530kg, mortar densification powder 1.5kg, powder polycarboxylate 0.5kg, sodium pyrophosphate 1kg, sodium alkyl sulfate 2kg.
Prepare every cubic metre of product and comprise following weight raw material: cement 105kg, calcium hydroxide 120kg, flyash 120kg, sand 1350kg, discarded slurry 800kg, methylcellulose 2kg, lignosulfonates 1.3kg, wooden sodium 0.5kg, sodium alkyl sulfate 1.2kg.
The invention has the advantages that: the present invention is without adding expensive bentonite, every side's mortar is saved bentonite 100kg left and right, effectively reduce costs, the present invention has that pump-conveying property is good, water-retaining property, lubricity, mobility and the advantage such as filling is good, and discarded slurry is made full use of. Cheap cement, addition increases, and extends setting time, can not condense in long-time, in way train smoothness, is difficult for plugging, and water retentivity of mortar is better. Sand can be dispersed in slip casting, and water-retaining property improves, and mortar there will not be lamination. Calcium hydroxide water absorbing capacity reduces, and avoids absorbing water too much expanding, and expansion can cause the protuberance cracking of transport pipeline, reduces potential safety hazard. The present invention has peptizaiton to cement, can improve cement mixture mobility, reduces water consumption, improves the workability of mortar, the impervious and corrosion resistance of energy reinforced mortar; Regulate mortar coagulation time, regulate, control water retentivity of mortar, make mortar within the required time period, keep good mobility and pumpability; Improve the workability of Mortar mix, reduce segregation, the bleeding of mixture, improve impermeability and frost resistance. After the present invention sclerosis, there is the effects such as freeze proof, diminishing, antiseepage, durable, cracking resistance.
Detailed description of the invention
Major diameter slurry shield discarded slurry recycles synchronous slip casting, prepares every cubic metre of product and comprises following weight raw material: cement 100-180kg, calcium hydroxide 50-120kg, flyash 120-350kg, sand 1300-1500kg, discarded slurry 500-800kg, water-retaining admixture 0.5-2kg, water reducer 0.5-2kg, set retarder 0.5-2kg, air entraining agent 0.5-2kg. The following particle of 0.075mm of discarded slurry particle is that the following particle of 99.6%, 0.005mm is 44%, and proportion is 1.15~1.45. Strength of cement grade is 42.5 grades and following. Calcium hydroxide is levigate pulverized limestone, and the quick lime curing time is no less than 7 days.
Embodiment 1
Prepare every cubic metre of product and comprise following weight raw material: cement 180kg, calcium hydroxide 50kg, flyash 265kg, sand 1300kg, discarded slurry 500kg, methylcellulose 1kg, lignosulfonates 2kg, wooden sodium 1.5kg, colophonium pyrolytic polymer 0.5kg. The mud index of the present embodiment is as table 1.
Table 1
Project Standard
Denseness 90mm
Water retention 90%
Density 2300kg/m3
Fluidity 180mm
Pumpability Good
Setting time 16h43min
Compression strength (28d) 2.8MPa
The present embodiment also has following advantage: wetting good, be uniformly dispersed, water conservation is effective, concrete workability improves, the slump is little, permeability resistance is strong, intensity and density are high; Bubbles volume is large but single isolated bubbles volume is little, therefore freeze proof strong with anti-permeability performance.
Embodiment 2
Prepare every cubic metre of product and comprise following weight raw material: cement 100kg, calcium hydroxide 95kg, flyash 180kg, sand 1500kg, discarded slurry 570kg, hydroxypropyl methyl fiber 0.5kg, casein 1kg, natrium citricum 2kg, alkylsulfonate 1.5kg. The mud index of the present embodiment is as table 2.
Table 2
Project Standard
Denseness 120mm
Water retention 85%
Density 2450kg/m3
Fluidity 200mm
Pumpability Good
Setting time 28h25min
Compression strength (28d) 3.3MPa
The present embodiment also has following advantage: water conservation is good, be uniformly dispersed, retarding effect is good, pumping is high, and after condensing, the large intensity of hardness is high, and setting time is long, can tension, resistance to compression and freeze proof; Introduce bubble, but do not affect intensity.
Embodiment 3
Prepare every cubic metre of product and comprise following weight raw material: cement 160kg, calcium hydroxide 70kg, flyash 285kg, sand 1350kg, discarded slurry 530kg, mortar densification powder 1.5kg, powder polycarboxylate 0.5kg, sodium pyrophosphate 1kg, sodium alkyl sulfate 2kg. The mud index of the present embodiment is as table 3.
Table 3
Project Standard
Denseness 130mm
Water retention 85%
Density 2400kg/m3
Fluidity 200mm
Pumpability Good
Setting time 22h58min
Compression strength (28d) 3.0MPa
The present embodiment also has following advantage: safety non-toxic, "dead" and non-corrosiveness, and water-tolerant, durability and adhesion strength are high, reduce the water yield, and after condensing, intensity is large; When mixing, introduce foam abundant, stable lasting, without deposited phenomenon.
Embodiment 4
Prepare every cubic metre of product and comprise following weight raw material: cement 105kg, calcium hydroxide 120kg, flyash 120kg, sand 1350kg, discarded slurry 800kg, methylcellulose 2kg, lignosulfonates 1.3kg, wooden sodium 0.5kg, sodium alkyl sulfate 1.2kg. The mud index of the present embodiment is as table 4.
Table 4
Project Standard
Denseness 110mm
Water retention 90%
Density 2500kg/m3
Fluidity 180mm
Pumpability Good
Setting time 20h43min
Compression strength (28d) 2.9MPa
The present embodiment also has following advantage: wetting good, be uniformly dispersed, water conservation is effective, concrete workability improves, the slump is little, permeability resistance is strong, intensity and density are high; When mixing, introduce foam abundant, stable lasting, without deposited phenomenon.
The employing slurry balance shield muddy water that adopts previous examples formula to prepare is abandoned slurry recycling grouting serous fluid and has been reached technical requirement of the present invention. Effectively controlled the sink-float in tunnel, section of jurisdiction faulting of slab ends is all at 2~6mm, section of jurisdiction dry tack free, and without any percolating water phenomenon, slurries have higher water conservation greasy property and filling performance, and plugging phenomenon does not occur in slip casting process.
Technical scheme of the present invention is not restricted in the scope of embodiment of the present invention. The present invention not technology contents of detailed description is known technology.

Claims (6)

1. major diameter slurry shield discarded slurry recycles synchronous slip casting, it is characterized in that: prepare every cubic metre of product and comprise following weight raw material: cement 100-180kg, calcium hydroxide 50-120kg, flyash 120-350kg, sand 1300-1500kg, discarded slurry 500-800kg, water-retaining admixture 0.5-2kg, water reducer 0.5-2kg, set retarder 0.5-2kg, air entraining agent 0.5-2kg; Described water-retaining admixture is methylcellulose, hydroxypropyl methyl fiber or mortar densification powder; Described water reducer is lignosulfonates, casein or powder polycarboxylate; Described set retarder is wooden sodium, natrium citricum or sodium pyrophosphate; Described air entraining agent is colophonium pyrolytic polymer, alkylsulfonate or sodium alkyl sulfate.
2. major diameter slurry shield discarded slurry according to claim 1 recycles synchronous slip casting, it is characterized in that: the following particle of 0.075mm of described discarded slurry particle is that the following particle of 99.6%, 0.005mm is 44%, and proportion is 1.15~1.45.
3. major diameter slurry shield discarded slurry according to claim 1 recycles synchronous slip casting, it is characterized in that: prepare every cubic metre of product and comprise following weight raw material: cement 180kg, calcium hydroxide 50kg, flyash 265kg, sand 1300kg, discarded slurry 500kg, methylcellulose 1kg, lignosulfonates 2kg, wooden sodium 1.5kg, colophonium pyrolytic polymer 0.5kg.
4. major diameter slurry shield discarded slurry according to claim 1 recycles synchronous slip casting, it is characterized in that: prepare every cubic metre of product and comprise following weight raw material: cement 100kg, calcium hydroxide 95kg, flyash 180kg, sand 1500kg, discarded slurry 570kg, hydroxypropyl methyl fiber 0.5kg, casein 1kg, natrium citricum 2kg, alkylsulfonate 1.5kg.
5. major diameter slurry shield discarded slurry according to claim 1 recycles synchronous slip casting, it is characterized in that: prepare every cubic metre of product and comprise following weight raw material: cement 160kg, calcium hydroxide 70kg, flyash 285kg, sand 1350kg, discarded slurry 530kg, mortar densification powder 1.5kg, powder polycarboxylate 0.5kg, sodium pyrophosphate 1kg, sodium alkyl sulfate 2kg.
6. major diameter slurry shield discarded slurry according to claim 1 recycles synchronous slip casting, it is characterized in that: prepare every cubic metre of product and comprise following weight raw material: cement 105kg, calcium hydroxide 120kg, flyash 120kg, sand 1350kg, discarded slurry 800kg, methylcellulose 2kg, lignosulfonates 1.3kg, wooden sodium 0.5kg, sodium alkyl sulfate 1.2kg.
CN201410173446.4A 2013-12-13 2014-04-28 Major diameter slurry shield discarded slurry recycles synchronous slip casting Active CN103951335B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN2013106773367 2013-12-13
CN201310677336.7 2013-12-13
CN201310677336 2013-12-13
CN201410173446.4A CN103951335B (en) 2013-12-13 2014-04-28 Major diameter slurry shield discarded slurry recycles synchronous slip casting

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Application Number Priority Date Filing Date Title
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CN103951335B true CN103951335B (en) 2016-05-11

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Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105712738B (en) * 2016-03-21 2018-12-14 山东安实绿色开采技术发展有限公司 A kind of high water filling material for discarded pipe filling
CN106946522B (en) * 2017-03-08 2020-04-07 北京艺高世纪科技股份有限公司 Shield synchronous grouting construction material
CN106977153B (en) * 2017-03-08 2019-08-06 中交第二航务工程局有限公司 Using the shield synchronous grouting serous fluid and its construction method of the preparation of shield discarded slurry
CN107344830A (en) * 2017-08-09 2017-11-14 中铁隧道集团二处有限公司 A kind of method that shield grouting is prepared using discarded slurry
CN107827422B (en) * 2017-11-24 2020-07-17 中铁隧道局集团有限公司 High-waterproof synchronous grouting slurry for submarine shield tunnel
CN108409227A (en) * 2018-02-02 2018-08-17 中交第二航务工程局有限公司 Slurry, which is abandoned, using slurry shield abandons sand co-formulated Testing of Grouting Material Behind Segments method
CN108442932A (en) * 2018-02-27 2018-08-24 北京交通大学 One kind being suitable for large diameter shield tunnel simultaneous grouting slurry
CN110255960A (en) * 2019-04-11 2019-09-20 武汉理工大学 A kind of antisettling agent and its preparation method and application
CN111470817A (en) * 2020-03-12 2020-07-31 中广核工程有限公司 Light slurry for shield synchronous grouting

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101717225A (en) * 2009-11-20 2010-06-02 上海隧道工程股份有限公司 Grouting slurry recycled by adopting muddy water waste slurry of muddy water balance shield support
CN102758641A (en) * 2012-08-01 2012-10-31 上海城建(集团)公司 Construction method for ultralarge-diameter shield synchronous grouting
CN103359992A (en) * 2013-07-08 2013-10-23 上海住总工程材料有限公司 Dry powder-type special mortar for synchronous grouting, and preparation method and construction method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101717225A (en) * 2009-11-20 2010-06-02 上海隧道工程股份有限公司 Grouting slurry recycled by adopting muddy water waste slurry of muddy water balance shield support
CN102758641A (en) * 2012-08-01 2012-10-31 上海城建(集团)公司 Construction method for ultralarge-diameter shield synchronous grouting
CN103359992A (en) * 2013-07-08 2013-10-23 上海住总工程材料有限公司 Dry powder-type special mortar for synchronous grouting, and preparation method and construction method thereof

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Effective date of registration: 20180416

Address after: 211800 Jiangsu Nanjing Pukou District Jiangpu road Sinpo road 120 Jiangpu Street headquarters economic Park, China Railway fourteen Bureau shield company five floor Shield Technology Center

Patentee after: China Railway fourteen bureau group big Shield Construction Engineering Co., Ltd.

Address before: 250014 No. 1 Heping Road, Lixia District, Shandong, Ji'nan

Patentee before: China Railway Shisiju Group Corporation