CN109503089A - A kind of anti-water dispersion pulp liquid and preparation method thereof for shield synchronization slip casting - Google Patents
A kind of anti-water dispersion pulp liquid and preparation method thereof for shield synchronization slip casting Download PDFInfo
- Publication number
- CN109503089A CN109503089A CN201910012971.0A CN201910012971A CN109503089A CN 109503089 A CN109503089 A CN 109503089A CN 201910012971 A CN201910012971 A CN 201910012971A CN 109503089 A CN109503089 A CN 109503089A
- Authority
- CN
- China
- Prior art keywords
- parts
- water
- shield
- slip casting
- pulp liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
Abstract
The present invention relates to underground construction technology fields, more particularly to a kind of anti-water dispersion pulp liquid and preparation method thereof for shield synchronization slip casting, the component of slurries includes: 120-150 parts of cement, 430-460 parts of water, 340-370 parts of flyash, 690-720 parts of sand, 2.6-2.9 parts of hydroxyethylmethylcellulose, 0.1-0.4 parts of polycarboxylate water-reducer in parts by weight, preparation method is to be added to the water the cement of the parts by weight, flyash, sand, hydroxyethylmethylcellulose and polycarboxylate water-reducer, is stirred evenly to obtain the final product.The prepared by the method anti-water dispersion pulp liquid for shield synchronization slip casting has the characteristics that not isolate, do not disperse under water, not bleeding, self-compaction, underground water can be more effectively reduced during Shield Construction Method Used, and influence is washed away on shield synchronous grouting serous fluid, very high shield synchronization slip casting effect, reduce duct pieces of shield tunnel sedimentation, when subsequent shield-tunneling construction, shield tunnel secondary grouting construction cost is reduced, tunnel integral construction quality is improved.
Description
Technical field
The present invention relates to underground construction technology fields, and in particular to a kind of anti-water dispersion pulp liquid for shield synchronization slip casting
And preparation method thereof.
Background technique
As the continuous development of modern city scale expands, more and more traffic tunnels need to pass through a large amount of buried pipe
The bad grounds such as line, building, especially when encountering the pebble layer of high osmosis, the bury stratum of high-moisture, high liquid
The layer of sand of change degree, underground tunnel project will face huge challenge.It, can be from slurry injection technique and slip casting for this problem
It is studied in terms of material two.Currently, slurry injection technique now develops very rapidly, and shield tunnel synchronous grouting material is ground
Study carefully and just shows especially important.Common cement based grouting material is since its anti-corrosion performance is low, strong vulnerable to underground water dilution, early stage
The defects of spending low, easy laminated segregation is not well positioned to meet requirement of the people to large tunnel engineering, therefore water resistant dispersion synchronizes
Slip casting is come into being.
Water resistant dispersion slip casting is generated and grows up in water resistant dispersion concrete foundation, is obtained after the advent of
The most attention of domestic and international academia.Its principle is that the underwater anti-washout agent based on flocculant is added in fresh mortar,
So that it is generated ionic bond or covalent bond with cement particle surface, play compression double electric layer, absorption cement granules and protects cement
Effect.Meanwhile between cement granules, between cement and fine aggregate, it can be acted on, be made by " gantry " of flocculant high polymer long chain
Mixture forms stable spatial flexible network structure, improves the cohesive strength of fresh mortar, limits dispersion, the isolation of fresh mortar
And cement is avoided to be lost.But there is also such as section of jurisdiction exterior slots to fill poor, stabilization in construction for the slip casting of water resistant dispersion at this stage
The deficiencies of property is inadequate, secondary grouting is at high cost.
Summary of the invention
Present invention seek to address that the above problem, provides a kind of anti-water dispersion pulp liquid and its system for shield synchronization slip casting
Preparation Method, this anti-water dispersion pulp liquid has the characteristics that not isolate, do not disperse under water, not bleeding, self-compaction, in Shield Construction Method Used
Underground water capable of more effectively being reduced in the process, influence being washed away on shield synchronous grouting serous fluid, very high shield synchronization slip casting effect subtracts
Few duct pieces of shield tunnel sedimentation when subsequent shield-tunneling construction, reduces shield tunnel secondary grouting construction cost, it is whole to improve tunnel
Body construction quality.
To achieve the above object, technical scheme is as follows:
A kind of anti-water dispersion pulp liquid for shield synchronization slip casting, the component of the slurries include: in parts by weight
120-150 parts of cement
430-460 parts of water
340-370 parts of flyash
690-720 parts of sand
2.6-2.9 parts of hydroxyethylmethylcellulose
0.1-0.4 parts of polycarboxylate water-reducer.
Wherein, mortar strength can be increased after cement consolidation.Water plays dissolution and mixes and stirs.Flyash rise improve mortar and easily
Property effect.Sand can be used for mixing and stirring, fill.Hydroxyethylmethylcellulose and polycarboxylate water-reducer proportion in use, a side
The mobility of slurries can be remarkably reinforced in face, without influencing the performance after hardening or having promotion effect to performance after hardening；Another party
Face, under the requirement of identical fluidity, the water requirement of this slurries can be substantially reduced, therefore under the premise of guaranteeing fluidity, this
Performance can increase after slurries hardening.
Based on the above technical solution, the component of the slurries includes: in parts by weight
135-145 parts of cement
440-450 parts of water
345-355 parts of flyash
695-710 parts of sand
2.7-2.8 parts of hydroxyethylmethylcellulose
0.2-0.3 parts of polycarboxylate water-reducer.
Based on the above technical solution, the component of the slurries includes: in parts by weight
140 parts of cement
445 parts of water
350 parts of flyash
700 parts of sand
2.8 parts of hydroxyethylmethylcellulose
0.3 part of polycarboxylate water-reducer.
Based on the above technical solution, the cement is 42.5 grades of portland cements.
Based on the above technical solution, the flyash is II grades of flyash of F class.
Based on the above technical solution, the sand is partial size≤5mm fine sand.
A kind of preparation method of the anti-water dispersion pulp liquid for shield synchronization slip casting, method the following steps are included:
(1) material prepare, prepare 120-150 parts of cement, 430-460 parts of water, 340-370 parts of flyash, 690-720 parts of sand,
2.6-2.9 parts of hydroxyethylmethylcelluloses and 0.1-0.4 parts of polycarboxylate water-reducers；
(2) according to the proportion in step (1), cement, flyash, sand, hydroxyethylmethylcellulose and polycarboxylic acids are added into water
Water-reducing agent is simultaneously mixed and stirred, and anti-water dispersion pulp liquid is made；
(3) slurries made from step (2) are pumped to by mortar spare in mortar vehicle.
Based on the above technical solution, the mixing time of the step (2) controls in 3-8min.
Based on the above technical solution, the revolving speed that mixes and stirs of the step (2) is controlled in 30-45r/min.
The present invention provides a kind of anti-water dispersion pulp liquids for shield synchronization slip casting, compared with prior art, the present invention
Anti- water dispersion pulp liquid have the advantage that 1. cement consumption is lower, and add more flyash, hydroxyethyl methyl fiber
The anti-impacts brush material such as element, polycarboxylate water-reducer, the slurries of proportion of the present invention have mobility, water resistant dispersibility and water-retaining property
Etc. characteristics, can effectively reduce shield synchronous grouting serous fluid because underground water washes away, and cause section of jurisdiction exterior slots filling it is poor,
The section of jurisdiction sedimentation that in turn results in, percolating water and other issues；2. it has good stability, consistency 12.3cm, fluidity 29.0-
30.0cm, bleeding rate 1%-2%, the construction cost of shield tunnel secondary grouting when reducing subsequent construction improve tunnel entirety
Construction quality.
The present invention also provides a kind of preparation methods of anti-water dispersion pulp liquid for shield synchronization slip casting, with the prior art
It compares, this method uses wet-mixing method technique, and stability, scour resistance easy to operate, anti-water dispersion pulp liquid is made are more guaranteed.
Specific embodiment
The present invention is further explained in the light of specific embodiments:
Embodiment 1
A kind of anti-water dispersion pulp liquid for shield synchronization slip casting, the component of the slurries include: in parts by weight
42.5 grades 135 parts of portland cement
442 parts of water
348 parts of flyash of II grades of F class
692 parts of partial size≤5mm fine sand
2.65 parts of hydroxyethylmethylcellulose
0.15 part of polycarboxylate water-reducer.
Above-mentioned anti-water dispersion pulp liquid the preparation method comprises the following steps:
(1) material prepares, and prepares 135 parts of 42.5 grades of portland cements, 442 parts of water, II grades of flyash of 348 parts of F classes, 692 parts of grains
Diameter≤5mm fine sand, 2.65 parts of hydroxyethylmethylcelluloses and 0.15 part of polycarboxylate water-reducer；
(2) according to the proportion in step (1), cement, flyash, sand, hydroxyethylmethylcellulose and polycarboxylic acids are added into water
Water-reducing agent is simultaneously mixed and stirred, mixing time 4min, and mixing and stirring revolving speed is 33r/min, and anti-water dispersion pulp liquid is made；
(3) slurries made from step (2) are pumped to by mortar spare in mortar vehicle.
The anti-water dispersion pulp liquid that embodiment 1 obtains is tested for the property, consistency, fluidity and bleeding including slurries
Rate.The specific test method is as follows:
1. consistency testing
It is carried out referring to JGJ70-2009 " building mortar basic performance tests method ":
(1) first slurry filling container and test cone surface are wiped clean, lubricates slide bar to ensure that slide bar can be free to slide；
(2) mortar is packed into container, makes mortar surface lower than vessel port 10mm or so, is plugged and pounded with tamper from container center to edge
25 times, then by container shake or tap it is several under, keep slurry surface smooth, container be placed on the pedestal of texturometer；
(3) by the cone of consistometer and slurry liquid contacts and the fixed cone of fixed screw is tightened, then read meter electronics clear
Zero；
(4) setscrew is unscrewed, while between manual time-keeping, the fixed screw immediately after 10s will be under measuring staff on end in contact slide bar
End, the reading on meter electronics is the consistometric value of mortar at this time；
(5) mortar in toot only allows to measure a consistency, and when replication, need to resample measurement.
2. fluidity is tested
It is carried out referring to GB/T2419-2005 " Test method for fluidity of cement mortar ":
(1) while preparing slurries, jumping table table top, die trial inner wall, tamper etc. are wiped completely；
(2) slurries are packed into die trial in two times, are filled at round mould height about 2/3rds for the first time, with tamper by justifying the edge of mould
It is uniformly plugged and pounded to center 15 times；Then dress second layer slurries, until be higher by truncated cone circle mould about 20mm or so, then with tamper by edge extremely
Pressure is uniformly smash 10 times in center.Mortar should be slightly above die trial after smashing pressure；
(3) it smashes pressure to finish, removes die sleeve, pocket knife is tilted, erased from centre to edge point with nearly horizontal angle and be higher by truncated cone
The slurries of circle mould, and the slurries fallen on the table are erased, then truncated cone circle mould is vertically gently lifted upwards.Starting is jumped at once
Table completes 25 bounces with the frequency that each second is primary in 25 ± 1s；
(4) bounce finishes, and measures the mutually perpendicular direction diameter of mortar bottom surface two with steel ruler, calculates average value.The average value
As slurries fluidity.
3. bleeding rate is tested
It is carried out referring to TB/T 3192-2008 " railway post stressed concrete beam pipe mudjacking technical conditions ":
(1) quality of 100ml beaker is first weighed；
(2) about 50ml is mixed in the slurries injection beaker set, weighs gross mass；
(3) capping of beaker mouth is sealed, counts when being put into beaker from slurry, beats upper flap by the time interval of per half an hour
It opens, tilts beaker, the water secreted out is sucked out with suction pipe, records each water secreted out；
Bleeding volume is bleeding rate divided by the water content of slurries, and calculation formula is as follows:
Bleeding rate (%)=bleeding volume (ml)/sample slurry weight (g) × slurry moisture content (%) × 100%
Test result shows that this slurry consistency is 12.3cm, fluidity 29.0cm, bleeding rate 1.7%.
Embodiment 2
A kind of anti-water dispersion pulp liquid for shield synchronization slip casting, the component of the slurries include: in parts by weight
42.5 grades 145 parts of portland cement
455 parts of water
365 parts of flyash of II grades of F class
715 parts of partial size≤5mm fine sand
2.85 parts of hydroxyethylmethylcellulose
0.35 part of polycarboxylate water-reducer.
Above-mentioned anti-water dispersion pulp liquid the preparation method comprises the following steps:
(1) material prepares, and prepares 145 parts of 42.5 grades of portland cements, 455 parts of water, II grades of flyash of 365 parts of F classes, 715 parts of grains
Diameter≤5mm fine sand, 2.85 parts of hydroxyethylmethylcelluloses and 0.35 part of polycarboxylate water-reducer；
(2) according to the proportion in step (1), cement, flyash, sand, hydroxyethylmethylcellulose and polycarboxylic acids are added into water
Water-reducing agent is simultaneously mixed and stirred, mixing time 5.5min, and mixing and stirring revolving speed is 38r/min, and anti-water dispersion pulp liquid is made；
(3) slurries made from step (2) are pumped to by mortar spare in mortar vehicle.
The anti-water dispersion pulp liquid that embodiment 2 obtains is tested for the property, consistency, fluidity and bleeding including slurries
Rate.Specific test method is as described in example 1 above.
Test result shows this slurry consistency 12.3cm, fluidity 29.5cm, bleeding rate 1.4%.
Embodiment 3
A kind of anti-water dispersion pulp liquid for shield synchronization slip casting, the component of the slurries include: in parts by weight
42.5 grades 140 parts of portland cement
445 parts of water
350 parts of flyash of II grades of F class
700 parts of partial size≤5mm sand
2.8 parts of hydroxyethylmethylcellulose
0.3 part of polycarboxylate water-reducer.
Above-mentioned anti-water dispersion pulp liquid the preparation method comprises the following steps:
(1) material prepares, and prepares 140 parts of 42.5 grades of portland cements, 445 parts of water, II grades of flyash of 350 parts of F classes, 700 parts of grains
Diameter≤5mm fine sand, 2.8 parts of hydroxyethylmethylcelluloses and 0.3 part of polycarboxylate water-reducer；
(2) according to the proportion in step (1), cement, flyash, sand, hydroxyethylmethylcellulose and polycarboxylic acids are added into water
Water-reducing agent is simultaneously mixed and stirred, mixing time 7.5min, and mixing and stirring revolving speed is 43r/min, and anti-water dispersion pulp liquid is made；
(3) slurries made from step (2) are pumped to by mortar spare in mortar vehicle.
The anti-water dispersion pulp liquid that embodiment 3 obtains is tested for the property, consistency, fluidity and bleeding including slurries
Rate.Specific test method is as described in example 1 above.
Test result shows this slurry consistency 12.3cm, fluidity 30.0cm, bleeding rate 1.2%.
The present invention is described by way of example above, but the present invention is not limited to above-mentioned specific embodiment, all to be based on
Any changes or modifications that the present invention is done are fallen within the scope of the claimed invention.
Claims (9)
1. a kind of anti-water dispersion pulp liquid for shield synchronization slip casting, which is characterized in that the component of the slurries is in parts by weight
Include:
120-150 parts of cement
430-460 parts of water
340-370 parts of flyash
690-720 parts of sand
2.6-2.9 parts of hydroxyethylmethylcellulose
0.1-0.4 parts of polycarboxylate water-reducer.
2. a kind of anti-water dispersion pulp liquid for shield synchronization slip casting as described in claim 1, which is characterized in that the slurries
Component include: in parts by weight
135-145 parts of cement
440-450 parts of water
345-355 parts of flyash
695-710 parts of sand
2.7-2.8 parts of hydroxyethylmethylcellulose
0.2-0.3 parts of polycarboxylate water-reducer.
3. a kind of anti-water dispersion pulp liquid for shield synchronization slip casting as described in claim 1, which is characterized in that the slurries
Component include: in parts by weight
140 parts of cement
445 parts of water
350 parts of flyash
700 parts of sand
2.8 parts of hydroxyethylmethylcellulose
0.3 part of polycarboxylate water-reducer.
4. a kind of anti-water dispersion pulp liquid for shield synchronization slip casting as described in claim 1, which is characterized in that the cement
For 42.5 grades of portland cements.
5. a kind of anti-water dispersion pulp liquid for shield synchronization slip casting as described in claim 1, which is characterized in that the fine coal
Ash is II grades of flyash of F class.
6. a kind of anti-water dispersion pulp liquid for shield synchronization slip casting as described in claim 1, which is characterized in that the sand is
Partial size≤5mm fine sand.
7. a kind of preparation method of the anti-water dispersion pulp liquid for shield synchronization slip casting, which is characterized in that method includes following step
It is rapid:
(1) material prepare, prepare 120-150 parts of cement, 430-460 parts of water, 340-370 parts of flyash, 690-720 parts of sand,
2.6-2.9 parts of hydroxyethylmethylcelluloses and 0.1-0.4 parts of polycarboxylate water-reducers；
(2) according to the proportion in step (1), cement, flyash, sand, hydroxyethylmethylcellulose and polycarboxylic acids are added into water
Water-reducing agent is simultaneously mixed and stirred, and anti-water dispersion pulp liquid is made；
(3) slurries made from step (2) are pumped to by mortar spare in mortar vehicle.
8. a kind of preparation method of the anti-water dispersion pulp liquid for shield synchronization slip casting as claimed in claim 7, feature exist
In the mixing time of the step (2) controls in 3-8min.
9. a kind of preparation method of the anti-water dispersion pulp liquid for shield synchronization slip casting as claimed in claim 7, feature exist
In the revolving speed that mixes and stirs of the step (2) is controlled in 30-45r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910012971.0A CN109503089A (en) | 2019-01-07 | 2019-01-07 | A kind of anti-water dispersion pulp liquid and preparation method thereof for shield synchronization slip casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910012971.0A CN109503089A (en) | 2019-01-07 | 2019-01-07 | A kind of anti-water dispersion pulp liquid and preparation method thereof for shield synchronization slip casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109503089A true CN109503089A (en) | 2019-03-22 |
Family
ID=65757409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910012971.0A Pending CN109503089A (en) | 2019-01-07 | 2019-01-07 | A kind of anti-water dispersion pulp liquid and preparation method thereof for shield synchronization slip casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109503089A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109809771A (en) * | 2019-03-26 | 2019-05-28 | 江苏蓝圈新材料股份有限公司 | A kind of shield synchronization slip casting |
| CN110183189A (en) * | 2019-05-28 | 2019-08-30 | 西南交通大学 | Presetting period controllable shield water resistant dispersion simultaneous grouting slurry and preparation method |
| CN110231257A (en) * | 2019-05-28 | 2019-09-13 | 西南交通大学 | A kind of experimental rig and method for the test of shield synchronization slip casting water resistant dispersibility |
| CN114213081A (en) * | 2021-12-27 | 2022-03-22 | 中国水利水电第七工程局成都水电建设工程有限公司 | Grouting material for reinforcing water-rich stratum of subway tunnel with water dispersion resistance and preparation method thereof |
| CN114230270A (en) * | 2021-12-07 | 2022-03-25 | 华南理工大学 | Shield synchronous grouting material and preparation method thereof |
| CN115029113A (en) * | 2022-05-09 | 2022-09-09 | 北京建筑材料科学研究总院有限公司 | Premixed shield grouting material, shield grouting slurry and application thereof |
| CN115745518A (en) * | 2022-11-25 | 2023-03-07 | 山东大学 | High-performance underwater undispersed concrete for filling behind tunnel lining wall and preparation method thereof |
| CN115872676A (en) * | 2022-11-25 | 2023-03-31 | 山东大学 | Anti-vibration strong-toughness shield tunnel synchronous grouting material and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09227191A (en) * | 1996-02-19 | 1997-09-02 | Shimizu Corp | Steel fiber-reinforced high-fluidity high-strength concrete |
| CN103449762A (en) * | 2013-07-29 | 2013-12-18 | 武汉理工大学 | Early-strength micro-expanding synchronous grouting material prepared from shield tailings and preparation method of synchronous grouting material |
| CN105503055A (en) * | 2015-12-29 | 2016-04-20 | 上海建工集团股份有限公司 | High-performance shield grouting material and preparation method thereof |
| CN106977153A (en) * | 2017-03-08 | 2017-07-25 | 中交第二航务工程局有限公司 | The shield synchronous grouting serous fluid and its construction method prepared using shield discarded slurry |
| CN107129221A (en) * | 2017-06-26 | 2017-09-05 | 中铁四局集团第工程有限公司 | A kind of slurries suitable for low strength stratum shield duct piece grouting behind shaft or drift lining |
| CN107827422A (en) * | 2017-11-24 | 2018-03-23 | 罗斌 | High waterproof simultaneous grouting slurry for seabed shield tunnel |
| CN107986711A (en) * | 2017-12-13 | 2018-05-04 | 中国水利水电第十工程局有限公司 | A kind of injection slurry applied to duct pieces of shield tunnel anti-floating and preparation method thereof |
-
2019
- 2019-01-07 CN CN201910012971.0A patent/CN109503089A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09227191A (en) * | 1996-02-19 | 1997-09-02 | Shimizu Corp | Steel fiber-reinforced high-fluidity high-strength concrete |
| CN103449762A (en) * | 2013-07-29 | 2013-12-18 | 武汉理工大学 | Early-strength micro-expanding synchronous grouting material prepared from shield tailings and preparation method of synchronous grouting material |
| CN105503055A (en) * | 2015-12-29 | 2016-04-20 | 上海建工集团股份有限公司 | High-performance shield grouting material and preparation method thereof |
| CN106977153A (en) * | 2017-03-08 | 2017-07-25 | 中交第二航务工程局有限公司 | The shield synchronous grouting serous fluid and its construction method prepared using shield discarded slurry |
| CN107129221A (en) * | 2017-06-26 | 2017-09-05 | 中铁四局集团第工程有限公司 | A kind of slurries suitable for low strength stratum shield duct piece grouting behind shaft or drift lining |
| CN107827422A (en) * | 2017-11-24 | 2018-03-23 | 罗斌 | High waterproof simultaneous grouting slurry for seabed shield tunnel |
| CN107986711A (en) * | 2017-12-13 | 2018-05-04 | 中国水利水电第十工程局有限公司 | A kind of injection slurry applied to duct pieces of shield tunnel anti-floating and preparation method thereof |
Non-Patent Citations (4)
| Title |
|---|
| 中国土木工程学会等: "《地下交通工程与工程安全-第五届中国国际隧道工程研讨论文集》", 31 October 2011, 同济大学出版社 * |
| 宋普涛等: "耐水抗渗型高性能盾构同步注浆材料性能研究", 《硅酸盐通报》 * |
| 白永年等: "《中国堤坝防渗加固新技术》", 30 November 2001, 中国水利水电出版社 * |
| 黄俊等: "环保型同步注浆浆液的施工实践", 《地下工程与隧道》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109809771A (en) * | 2019-03-26 | 2019-05-28 | 江苏蓝圈新材料股份有限公司 | A kind of shield synchronization slip casting |
| CN110183189A (en) * | 2019-05-28 | 2019-08-30 | 西南交通大学 | Presetting period controllable shield water resistant dispersion simultaneous grouting slurry and preparation method |
| CN110231257A (en) * | 2019-05-28 | 2019-09-13 | 西南交通大学 | A kind of experimental rig and method for the test of shield synchronization slip casting water resistant dispersibility |
| CN114230270A (en) * | 2021-12-07 | 2022-03-25 | 华南理工大学 | Shield synchronous grouting material and preparation method thereof |
| CN114213081A (en) * | 2021-12-27 | 2022-03-22 | 中国水利水电第七工程局成都水电建设工程有限公司 | Grouting material for reinforcing water-rich stratum of subway tunnel with water dispersion resistance and preparation method thereof |
| CN115029113A (en) * | 2022-05-09 | 2022-09-09 | 北京建筑材料科学研究总院有限公司 | Premixed shield grouting material, shield grouting slurry and application thereof |
| CN115745518A (en) * | 2022-11-25 | 2023-03-07 | 山东大学 | High-performance underwater undispersed concrete for filling behind tunnel lining wall and preparation method thereof |
| CN115872676A (en) * | 2022-11-25 | 2023-03-31 | 山东大学 | Anti-vibration strong-toughness shield tunnel synchronous grouting material and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109503089A (en) | A kind of anti-water dispersion pulp liquid and preparation method thereof for shield synchronization slip casting | |
| EP0520413B1 (en) | Concrete composition | |
| CN107098645B (en) | Non-dispersible underwater concrete and preparation method thereof | |
| CN101980014A (en) | Method for testing adaptability of polycarboxylic water reducer and cement | |
| CN113929365B (en) | Self-compacting solidified soil and use method thereof | |
| CN110304872A (en) | A kind of nano modification cement base not dispersion and preparation method thereof under water | |
| CN107935516A (en) | A kind of microdilatancy grout material that slurry is molded into for tunnel-liner vault band | |
| CN102815902A (en) | Preparation and application method of high-strength large-flow shrinkage-free cement slurry | |
| CN113003999A (en) | Synchronous grouting slurry for shield construction of water-rich stratum and preparation method thereof | |
| CN110105031A (en) | A kind of selfreparing grouting material and preparation method thereof | |
| CN108117626A (en) | A kind of high performance water reducing agent of polyocarboxy acid | |
| CN106946523B (en) | Fill concrete after a kind of foundation for laid pipe | |
| CN101186477B (en) | Asphalt cement mortar | |
| Yu et al. | Experimental study on physical properties of superfine cement grouting material | |
| CN102040358A (en) | Mortar detection method for concrete bleeding | |
| CN108218359B (en) | A kind of cement base high-performance microdilatancy filling and injecting slurry material | |
| CN110240444A (en) | A kind of pervious concrete prepares forming method | |
| CN110387913A (en) | A kind of test method that stiff composite pile bearing capacity is tangentially tested | |
| CN110204283A (en) | High density, High Strength Pump Concrete based on tailing Machine-made Sand and preparation method thereof | |
| CN107063930B (en) | A kind of pump concrete education resistance and stick poly- property detection device and test method | |
| CN109180082B (en) | A kind of long-acting avalanche prevention damage concrete and preparation method thereof | |
| CN114213081A (en) | Grouting material for reinforcing water-rich stratum of subway tunnel with water dispersion resistance and preparation method thereof | |
| CN112358263A (en) | High-flow-state hole sealing material for underground mine and use method | |
| Xie et al. | Study on the Effect of Cellulose Ether on the Performance of Concrete | |
| Du et al. | Influencing factors and experimental study on performance of composite cement-based grouting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190322 |
|
| RJ01 | Rejection of invention patent application after publication |