CN110041014A - A kind of test method of premixing shield grouting dough knot rate - Google Patents
A kind of test method of premixing shield grouting dough knot rate Download PDFInfo
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- CN110041014A CN110041014A CN201910088355.3A CN201910088355A CN110041014A CN 110041014 A CN110041014 A CN 110041014A CN 201910088355 A CN201910088355 A CN 201910088355A CN 110041014 A CN110041014 A CN 110041014A
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- slurry
- premixing
- graduated cylinder
- scale
- test method
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- 238000010998 test method Methods 0.000 title claims abstract description 13
- 239000002002 slurry Substances 0.000 claims abstract description 28
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000000654 additive Substances 0.000 claims abstract description 8
- 230000000996 additive effect Effects 0.000 claims abstract description 8
- 239000010881 fly ash Substances 0.000 claims abstract description 8
- 229920002472 Starch Polymers 0.000 claims abstract description 6
- -1 admixture Substances 0.000 claims abstract description 6
- 235000019698 starch Nutrition 0.000 claims abstract description 6
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 5
- 239000002253 acid Substances 0.000 claims abstract description 4
- 229920002678 cellulose Polymers 0.000 claims abstract description 4
- 235000010980 cellulose Nutrition 0.000 claims abstract description 4
- 239000004568 cement Substances 0.000 claims abstract description 4
- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 claims abstract description 4
- 229910001701 hydrotalcite Inorganic materials 0.000 claims abstract description 4
- 229960001545 hydrotalcite Drugs 0.000 claims abstract description 4
- 239000002075 main ingredient Substances 0.000 claims abstract description 4
- 239000004576 sand Substances 0.000 claims abstract description 4
- 239000002893 slag Substances 0.000 claims abstract description 4
- 239000008107 starch Substances 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000005259 measurement Methods 0.000 claims description 9
- 239000003755 preservative agent Substances 0.000 claims description 6
- 230000002335 preservative effect Effects 0.000 claims description 6
- 238000007596 consolidation process Methods 0.000 claims description 3
- ONCZQWJXONKSMM-UHFFFAOYSA-N dialuminum;disodium;oxygen(2-);silicon(4+);hydrate Chemical compound O.[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Na+].[Na+].[Al+3].[Al+3].[Si+4].[Si+4].[Si+4].[Si+4] ONCZQWJXONKSMM-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229940080314 sodium bentonite Drugs 0.000 claims description 3
- 229910000280 sodium bentonite Inorganic materials 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 3
- 238000009955 starching Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 10
- 229910000278 bentonite Inorganic materials 0.000 abstract description 7
- 239000000440 bentonite Substances 0.000 abstract description 7
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 abstract description 6
- 230000001360 synchronised effect Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 6
- 229940092782 bentonite Drugs 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/38—Concrete; Lime; Mortar; Gypsum; Bricks; Ceramics; Glass
- G01N33/383—Concrete or cement
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Immunology (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Pathology (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of test methods of premixing shield grouting dough knot rate; including cement, flyash, admixture, bentonite, fine sand, additive and water; wherein; the main ingredient of the admixture is flyash and ground granulated blast furnace slag; the bentonite is Na-bentonite, and the additive is non-ionic celluloses ether, saccharide compound, polycarboxylic acid slump retaining agent, starch ether and magnetic hydrotalcite.The utility model has the advantages that measuring the unity rate of premixing slurry by this method, is conducive to the unity time for controlling slurry in the work progress of synchronous grouting, improves the quality of product, ensure that the stability of product.
Description
Technical field
The present invention relates to Shield Construction Technique field more particularly to a kind of test sides of premixing shield grouting dough knot rate
Method.
Background technique
The fast development of in the 21st century, China's economic accelerates the construction of urbanization.With the raising of urban compact degree
With being continuously increased for skyscraper quantity, earth's surface can be fewer and fewer using space.Effective use and the exploitation underground space become most
Good selection excavates the underground space by large-scale use, in particular on subway engineering using shield method.Shield-tunneling construction process
In, the diameter of shield inner walls is greater than the outer diameter of pipe-plate lining, in order to which the installation of lining cutting and the construction of shield curve need；
Shield cutting diameter is greater than shield machine outer diameter, and along with the thickness of shield shell, which forms theoretic shield gaps.
The reason of stratum settlement mainly shield tail be detached from section of jurisdiction after, surrounding soil loses support will be mobile to section of jurisdiction, be formed by stratum
Loosening needs timely to fill reinforcing, is otherwise bound to cause stratum settlement, and then influences all kinds of buildings of earth's surface and underground utilities
Facility.In order to reduce influence of the shield-tunneling construction to formation displacement, it is necessary to effectively be filled, that is, carried out same to shield tail gap
Walk slip casting.And whether synchronous grouting technology, especially the selection of grouting are reasonable, are essential key auxiliary in shield method
Assistant engineer's method is the key that control surface subsidence and tunnel subsidence (including posterior settlement).
Subway mostly is built in the whole nation at present, and the synchronous grouting in shield-tunneling construction generallys use Site, and Site is deposited
In problems, if mortar quality is uncontrollable, there is isolation lamination, unity rate is low, unstable product quality.Certainly pre-
To mix shield mortar have the problem of haul distance, but can adjust setting time by adjusting mortar special additive.
Summary of the invention
For the problems in the relevant technologies, the present invention proposes a kind of test method of premixing shield grouting dough knot rate, with
Overcome above-mentioned technical problem present in existing the relevant technologies.
The technical scheme of the present invention is realized as follows:
A kind of test method of premixing shield grouting dough knot rate, including it is cement, flyash, admixture, bentonite, thin
Sand, additive and water, wherein the main ingredient of the admixture is flyash and ground granulated blast furnace slag, and the bentonite is
Sodium bentonite.
Further, the additive is non-ionic celluloses ether, saccharide compound, polycarboxylic acid slump retaining agent, starch
Ether and magnetic hydrotalcite.
Further, the specific steps of which are as follows:
(1) 250ml graduated cylinder is placed on horizontal undisturbed platform, uses vernier caliper measurement graduated cylinder inside wall height
h1, it is accurate to 0.1mm；
(2) slurry that performance setting time requires that meets mixed is smoothly injected into 250ml graduated cylinder, makes to expect
It starches surface and 250ml scale maintains an equal level；
(3) plate size is placed horizontally at cylinder head as scale, uses slurry table in vernier caliper measurement graduated cylinder
Face to scale height h2, it is accurate to 0.1mm.After measurement, graduated cylinder is sealed using preservative film；
(4) after for 24 hours, preservative film is removed, Steel Ruler is placed horizontally at cylinder head as scale again, uses vernier
Calliper to measure at this time slurry solidified body surface to scale height h3, it is accurate to 0.1mm.
Further, the volume V0Calculating:
V0=π R2(h1-h2), in formula: R-graduated cylinder internal diameter radius, mm, h1- graduated cylinder inside wall height, mm, h2In-graduated cylinder
Height of the slurry surface to scale, mm.
Further, the slurry for 24 hours after volume V1Calculating:
V1=π R2(h1-h3), in formula: h3Height of the surface of-slurry solidified body to scale, mm.
Further, the percentage of consolidation e=100V of the slurry1/V0=100 (h1-h3)/(h1-h2), in formula: e-slurry group
Knot rate.
The beneficial effects of the present invention are: measuring the unity rate of premixing slurry by this method, be conducive in synchronous grouting
In work progress, the unity time of slurry is controlled, the quality of product is improved, ensure that the stability of product.
Specific embodiment
It is clearly and completely described below in conjunction with the technical solution in the embodiment of the present invention, it is clear that described
Embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.
According to an embodiment of the invention, providing a kind of test method of premixing shield grouting dough knot rate.
The test method of premixing shield grouting dough knot rate according to an embodiment of the present invention, including cement, flyash, mix
With material, bentonite, fine sand, additive and water, wherein the main ingredient of the admixture is flyash and granulated blast-furnace slag
Powder, the bentonite are sodium bentonite.
In one embodiment, the additive is non-ionic celluloses ether, saccharide compound, polycarboxylic acid guarantor are collapsed
Agent, starch ether and magnetic hydrotalcite.
In one embodiment, the specific steps of which are as follows:
(1) 250ml graduated cylinder is placed on horizontal undisturbed platform, uses vernier caliper measurement graduated cylinder inside wall height
h1, it is accurate to 0.1mm；
(2) slurry that performance setting time requires that meets mixed is smoothly injected into 250ml graduated cylinder, makes to expect
It starches surface and 250ml scale maintains an equal level；
(3) plate size is placed horizontally at cylinder head as scale, uses slurry table in vernier caliper measurement graduated cylinder
Face to scale height h2, it is accurate to 0.1mm.After measurement, graduated cylinder is sealed using preservative film；
(4) after for 24 hours, preservative film is removed, Steel Ruler is placed horizontally at cylinder head as scale again, uses vernier
Calliper to measure at this time slurry solidified body surface to scale height h3, it is accurate to 0.1mm.
In one embodiment, the volume V0Calculating:
V0=π R2(h1-h2), in formula: R-graduated cylinder internal diameter radius, mm, h1- graduated cylinder inside wall height, mm, h2In-graduated cylinder
Height of the slurry surface to scale, mm.
In one embodiment, the slurry for 24 hours after volume V1Calculating:
V1=π R2(h1-h3), in formula: h3Height of the surface of-slurry solidified body to scale, mm.
In one embodiment, the percentage of consolidation e=100V of the slurry1/V0=100 (h1-h3)/(h1-h2), in formula:
E-slurry unity rate.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited to
This, anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention
And its inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (6)
1. a kind of test method of premixing shield grouting dough knot rate, which is characterized in that including cement, flyash, admixture, swollen
Moisten soil, fine sand, additive and water, wherein the main ingredient of the admixture is flyash and ground granulated blast furnace slag, described swollen
Profit soil is sodium bentonite.
2. a kind of test method of premixing shield grouting dough knot rate according to claim 1, which is characterized in that described outer
Adding agent is non-ionic celluloses ether, saccharide compound, polycarboxylic acid slump retaining agent, starch ether and magnetic hydrotalcite.
3. a kind of test method of premixing shield grouting dough knot rate according to claim 1, the specific steps of which are as follows:
(1) 250ml graduated cylinder is placed on horizontal undisturbed platform, uses vernier caliper measurement graduated cylinder inside wall height h1, accurately
To 0.1mm；
(2) slurry that performance setting time requires that meets mixed is smoothly injected into 250ml graduated cylinder, makes slurry surface
Maintain an equal level with 250ml scale；
(3) plate size is placed horizontally at cylinder head as scale, extremely using slurry surface in vernier caliper measurement graduated cylinder
The height h of scale2, it is accurate to 0.1mm.After measurement, graduated cylinder is sealed using preservative film；
(4) after for 24 hours, preservative film is removed, Steel Ruler is placed horizontally at cylinder head as scale again, is surveyed using vernier caliper
The surface of slurry solidified body at this time is measured to the height h of scale3, it is accurate to 0.1mm.
4. a kind of test method of premixing shield grouting dough knot rate according to claim 1, which is characterized in that the body
Product V0Calculating:
V0=π R2(h1-h2), in formula: R-graduated cylinder internal diameter radius, mm, h1- graduated cylinder inside wall height, mm, h2Slurry table in-graduated cylinder
Height of the face to scale, mm.
5. a kind of test method of premixing shield grouting dough knot rate according to claim 1, which is characterized in that the material
Volume V after starching for 24 hours1Calculating:
V1=π R2(h1-h3), in formula: h3Height of the surface of-slurry solidified body to scale, mm.
6. a kind of test method of premixing shield grouting dough knot rate according to claim 1, which is characterized in that the material
The percentage of consolidation e=100V of slurry1/V0=100 (h1-h3)/(h1-h2), in formula: e-slurry unity rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910088355.3A CN110041014A (en) | 2019-01-30 | 2019-01-30 | A kind of test method of premixing shield grouting dough knot rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910088355.3A CN110041014A (en) | 2019-01-30 | 2019-01-30 | A kind of test method of premixing shield grouting dough knot rate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110041014A true CN110041014A (en) | 2019-07-23 |
Family
ID=67274183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910088355.3A Pending CN110041014A (en) | 2019-01-30 | 2019-01-30 | A kind of test method of premixing shield grouting dough knot rate |
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| Country | Link |
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| CN (1) | CN110041014A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111551468A (en) * | 2020-07-10 | 2020-08-18 | 中铁六局集团有限公司 | Shield tunnel synchronous grouting slurry performance detection device and detection method thereof |
| CN113943132A (en) * | 2021-10-14 | 2022-01-18 | 郑州大学 | Shield muck replacement type shield segment post-grouting environment-friendly slurry |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106904888A (en) * | 2017-03-13 | 2017-06-30 | 河北三楷展创建材有限公司 | A kind of high-moisture-retention shield-tunneling construction premixing synchronous grouting material |
-
2019
- 2019-01-30 CN CN201910088355.3A patent/CN110041014A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106904888A (en) * | 2017-03-13 | 2017-06-30 | 河北三楷展创建材有限公司 | A kind of high-moisture-retention shield-tunneling construction premixing synchronous grouting material |
Non-Patent Citations (1)
| Title |
|---|
| 张程浩等: "预拌盾构注浆料的试验研究", 《建筑技术》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111551468A (en) * | 2020-07-10 | 2020-08-18 | 中铁六局集团有限公司 | Shield tunnel synchronous grouting slurry performance detection device and detection method thereof |
| CN113063697A (en) * | 2020-07-10 | 2021-07-02 | 中铁六局集团有限公司 | Measuring assembly for serous performance and measuring method thereof |
| CN113943132A (en) * | 2021-10-14 | 2022-01-18 | 郑州大学 | Shield muck replacement type shield segment post-grouting environment-friendly slurry |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190723 |
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