CN108439934A - A kind of rich water tunnel grouting serous fluid and grouting process - Google Patents
A kind of rich water tunnel grouting serous fluid and grouting process Download PDFInfo
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- CN108439934A CN108439934A CN201810386102.XA CN201810386102A CN108439934A CN 108439934 A CN108439934 A CN 108439934A CN 201810386102 A CN201810386102 A CN 201810386102A CN 108439934 A CN108439934 A CN 108439934A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 133
- 210000004911 serous fluid Anatomy 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000008569 process Effects 0.000 title claims abstract description 16
- 239000004568 cement Substances 0.000 claims abstract description 54
- 239000002002 slurry Substances 0.000 claims abstract description 40
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 30
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 30
- 238000007569 slipcasting Methods 0.000 claims description 34
- 239000003638 chemical reducing agent Substances 0.000 claims description 17
- 239000000701 coagulant Substances 0.000 claims description 11
- 229920002401 polyacrylamide Polymers 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 8
- 229920002472 Starch Polymers 0.000 claims description 7
- 235000019698 starch Nutrition 0.000 claims description 7
- 239000008107 starch Substances 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 4
- 229910019142 PO4 Inorganic materials 0.000 claims description 2
- 229910000403 monosodium phosphate Inorganic materials 0.000 claims description 2
- 235000019799 monosodium phosphate Nutrition 0.000 claims description 2
- 239000010452 phosphate Substances 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical group [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 claims description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims 1
- UEZVMMHDMIWARA-UHFFFAOYSA-N Metaphosphoric acid Chemical compound OP(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-N 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- 239000004411 aluminium Substances 0.000 claims 1
- 239000011575 calcium Substances 0.000 claims 1
- 229910052791 calcium Inorganic materials 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 230000003467 diminishing effect Effects 0.000 claims 1
- 125000001624 naphthyl group Chemical group 0.000 claims 1
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 claims 1
- 239000011435 rock Substances 0.000 abstract description 9
- 239000000243 solution Substances 0.000 abstract description 9
- 238000002347 injection Methods 0.000 abstract description 3
- 239000007924 injection Substances 0.000 abstract description 3
- 239000011440 grout Substances 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000002245 particle Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 238000011056 performance test Methods 0.000 description 4
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 description 3
- HDFXRQJQZBPDLF-UHFFFAOYSA-L disodium hydrogen carbonate Chemical compound [Na+].[Na+].OC([O-])=O.OC([O-])=O HDFXRQJQZBPDLF-UHFFFAOYSA-L 0.000 description 3
- 239000000499 gel Substances 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 230000036571 hydration Effects 0.000 description 3
- 238000006703 hydration reaction Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- -1 poly- naphthalene formaldehyde sulfonate salt Chemical class 0.000 description 3
- 206010053567 Coagulopathies Diseases 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 230000035602 clotting Effects 0.000 description 2
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 description 2
- 238000009533 lab test Methods 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000011398 Portland cement Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000001506 calcium phosphate Substances 0.000 description 1
- 229910000389 calcium phosphate Inorganic materials 0.000 description 1
- 235000011010 calcium phosphates Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 235000021321 essential mineral Nutrition 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 125000005341 metaphosphate group Chemical group 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- DGVVJWXRCWCCOD-UHFFFAOYSA-N naphthalene;hydrate Chemical group O.C1=CC=CC2=CC=CC=C21 DGVVJWXRCWCCOD-UHFFFAOYSA-N 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 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
- C04B28/24—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 alkyl, ammonium or metal silicates; containing silica sols
- C04B28/26—Silicates of the alkali metals
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/70—Grouts, e.g. injection mixtures for cables for prestressed concrete
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Ceramic Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Lining And Supports For Tunnels (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention relates to rich water tunnel slurry injection technique field, a kind of rich water tunnel grouting serous fluid and grouting process are specifically disclosed.As single hole water yield ＞ 10m3There are when solution cavity, the grouting serous fluid includes component A cement mixing slurry and B component waterglass for/h or rich water tunnel；When single hole water yield is ＞ 5m3/ h, and≤10m3When/h, the grouting serous fluid includes component C cement list slurry, D component cements mixing slurry and component E waterglass；When single hole water yield is ＞ 2m3/ h, and≤5m3/ h, the grouting serous fluid include F component cements mixing slurry and G component waterglass.The present invention changes size performance, adapts to the needs of engineering according to the grout coordinate ratio of the engineerings situation reasonable designs such as size, the rock crusher degree of rich water tunnel gushing amount.
Description
Technical field
The present invention relates to rich water tunnel slurry injection technique field more particularly to a kind of rich water tunnel grouting serous fluids and Cementer
Skill.
Background technology
Water-conveyance tunnel belongs to great burying high artesian Tunnel Engineering, and tunnel median year flowing water, country rock underground water is mainly base
Rock crevice water and artesian water, individual lot can also have rock crusher, and there are fault-layer-phenomenons, have a significant impact to engineering.This is disconnected
Layer is higher with interior landwaste, shale content, it may occur however that prominent water burst, prominent mud disaster, grouting for water blocking reinforcing is a kind of effective and feasible
Engineering measure.Current injecting paste material is various, and cement-water-clay system (also known as cs slurries) is current various grouting and reinforcing engineerings
In a kind of common compound slurry, but slurry viscosity is generally not easy to control, and it is strong that water dissipates property, especially in two fluid grouting, in water burst
Measure it is bigger in the case of easily broken up, the stability of slurries is poor, has seriously affected slip casting effect.
Invention content
Not easy to control for the slurry viscosity of existing cement-water-clay system, water dissipates the problems such as property is strong, and stability is poor, this
Invention provides a kind of rich water tunnel grouting serous fluid.And the rich water tunnel grouting process being adapted therewith.
To achieve the above object of the invention, the embodiment of the present invention uses the following technical solution：
A kind of rich water tunnel grouting serous fluid, as single hole water yield ＞ 10m3/ h or rich water tunnel are there are when solution cavity, the note
It includes component A and B component to starch slurries；Wherein：
Component A is starched for cement mixing, including cement, water, coagulant and water-reducing agent, and the ratio of mud of the water and cement is
(0.8-1):1, it is coagulant in terms of 100% by the quality of water in component A：1~1.5%, water-reducing agent：1-3%；B component is water glass
Glass, by cement mixing starch in water quality be 100% in terms of, waterglass：10~20%；
When single hole water yield is ＞ 5m3/ h, and≤10m3When/h, the grouting serous fluid includes component C, D components and component E；
Wherein：
Component C is starched for cement list, including the ratio of mud is (0.8-1):1 water and cement；D groups are divided into cement mixing slurry, packet
Include cement, water and retarder, the ratio of mud of the water and cement is (0.8-1):1, with the gross mass of water in component C and D components
For 100% meter, retarder：0.6-0.8%；Component E is waterglass, by the gross mass of water in component C and D components be 100% in terms of,
Waterglass：14.5-15.5%；
When single hole water yield is ＞ 2m3/ h, and≤5m3/ h, the grouting serous fluid include F components and G components, wherein F components
It is starched for cement mixing, including cement, water and retarder, the ratio of mud of the water and cement is (0.8-1):1, with water in F components
Quality be 100% meter, retarder：0.7%-1%；G groups are divided into waterglass, are water in terms of 100% by the quality of water in F components
Glass：14.5-15.5%.
Compared with the existing technology, rich water tunnel grouting serous fluid provided by the invention, has the advantage that：
The present invention matches according to the slurries of the engineerings situation reasonable designs such as size, the rock crusher degree of rich water tunnel gushing amount
Than changing size performance, adapting to the needs of engineering.When single hole water yield is more than 10m3/ h or rich water tunnel are needed there are when solution cavity
Grouting serous fluid is wanted to complete condensation within the injection short period, grouting serous fluid provided by the invention is suitable for big water yield, and gushing water is prominent
Mud, the slip casting under the conditions of karst etc., accelerated clotting time are can be controlled in 30s~60s.When single hole water yield is ＞ 5m3/ h, and≤
10m3When/h, grouting serous fluid provided by the invention is suitable for larger water yield, and the slip casting under the conditions of multiply multiple spot water burst promotees solidifying
Time can be controlled in 60s-120s.When single hole water yield is ＞ 2m3/ h, and≤5m3When/h, grouting serous fluid provided by the invention,
General suitable for water yield, country rock can be controlled in 120s or more compared with the slip casting under broken condition, accelerated clotting time.
Rich water tunnel grouting serous fluid provided by the invention, controllability is good, is not easy by broken off by water flush, and the property noted is strong, effectively
Solve the disadvantage that slurries are easily broken up under the conditions of big water yield.
The coagulant is one kind in polyacrylamide or calcium aluminate, preferably polyacrylamide.
Polyacrylamide amine molecule is in the continuous phase of cement granules, and cement granules are because absorbing the moisture of polyacrylamide due to water
Change (this process will be faster than simple hydration process), generates each macromolecule reticular structure to tension, effectively compensate for cement knot
While there is crack in stone body, due to the package action of macromolecule reticular structure, it is allowed to and the mixture of cement macroscopic view
On show to be not easy by the property of broken off by water flush.
The water-reducing agent is naphthalene water reducer.
Have the function of keeping slurry fluidity, mechanism as follows：
After hydrated cementitious, since interionic van der Waals interaction and cement essential mineral band in hydration process are different
Charge and generate cohesion, and then generate flocculent structure.High efficiency water reducing agent belongs to anionic surfactant mostly, is incorporated into cement
In after, anion in water-reducing agent can be adsorbed in cement particle surface under the effect of the positive charge of cement particle, form diffusion
Electric double layer makes cement particle disperse under electrostatic repulsion effect, in the space grid structure formed in cement hydration process
Irreducible water releases, being caused to flow.
The retarder is one kind in phosphate or metaphosphate, is selected as sodium dihydrogen phosphate.
The retardation mechanism of disodium bicarbonate includes two aspects：Disodium hydrogen phosphate is a kind of electrolyte salt first, can be
A variety of charged particles are ionized out in water, the presence of these charged particles has delayed cement setting；Secondly in Portland cement
Containing calcium hydroxide, disodium hydrogen phosphate generates calcium phosphate not soluble in water with calcium hydroxide reaction, and is wrapped in cement granules table
Face, prevents its contact with water, and retarding action is played to hydrated reaction of cement.
The Baume degrees of the waterglass is 25-40Be', modulus 3.1-3.4.
The present invention also provides a kind of rich water tunnel grouting process, as single hole water yield ＞ 10m3There are molten for/h or rich water tunnel
When hole, bi-slurry grouting method is taken, is starched all the way for component A cement mixing, is all the way B component waterglass, slip casting initial pressure is
0.9-1MPa。
When single hole water yield is ＞ 5m3/ h, and≤10m3When/h, first carries out component C cement list and starch slip casting, continue 25-
Then 35min is changed to two fluid grouting, be all the way D component cement mixing slurries, be all the way component E waterglass, control single slurry slip casting with
The grouting pressure of two fluid grouting is identical, and slip casting initial pressure is 0.9-1MPa.
It is ＞ 5m in above-mentioned single hole water yield3/ h, and≤10m3Segmenting slip casting, initial list liquid note are used during/h slip castings
Slurry：Keep single slurry slip casting identical as the grouting pressure of two fluid grouting, cement list starches good fluidity, and consistency is low, only need to control single slurry
Slip casting 25-35min, you can filling tunnel distal end country rock tiny crack, it is preliminary to reinforce distal end rock mass；Two fluid grouting：Reinforce water blockoff
Effect is filled rock cranny within the scope of 3 to 5 meters of tunnel, and slip casting effect is more notable.
When single hole water yield is ＞ 2m3/ h, and≤5m3When/h, using bi-slurry grouting method, mixed all the way for F component cements
Slurry, is all the way G component waterglass.
Specifically, it is preferable that as single hole water yield ＞ 10m3/ h or rich water tunnel are there are when solution cavity, slip casting during slip casting
Pressure is no more than 5.5MPa.
Preferably, when single hole water yield is ＞ 5m3/ h, and≤10m3When/h, grouting pressure is no more than during slip casting
4.5MPa。
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
The present invention is limited, another following lift all relies on laboratory test, principle of orthogonal test.
Embodiment 1
The present invention is that embodiment provides a kind of rich water tunnel grouting serous fluid, as single hole water yield ＞ 10m3/ h or rich water tunnel
There are when solution cavity, the proportioning of grouting serous fluid is as shown in table 1 below.
The grouting serous fluid of 1 serial number 1-9 of table matches
| Serial number | The ratio of mud | Waterglass | Coagulant | Water-reducing agent |
| 1 | 1:1 | 10% | 1% | 1% |
| 2 | 1:1 | 10% | 1.25% | 2% |
| 3 | 1:1 | 10% | 1.50% | 3% |
| 4 | 1:1 | 15% | 1% | 2% |
| 5 | 1:1 | 15% | 1.25% | 3% |
| 6 | 1:1 | 15% | 1.50% | 1% |
| 7 | 1:1 | 20% | 1% | 3% |
| 8 | 1:1 | 20% | 1.25% | 1% |
| 9 | 1:1 | 20% | 1.50% | 2% |
Above-mentioned coagulant is polyacrylamide；Above-mentioned water-reducing agent is poly- naphthalene formaldehyde sulfonate salt.
The grouting process of above-mentioned rich water tunnel grouting serous fluid, takes bi-slurry grouting method, is all the way waterglass, is all the way water
The cement mixing slurry of mud, coagulant, water-reducing agent, slip casting initial pressure is 0.9-1MPa, and grouting pressure is no more than during slip casting
5.5MPa。
The grouting serous fluid of above-mentioned serial number 1-9 carries out laboratory test performance detection, and testing result is as shown in table 2 below.
2 performance test results of table
| Serial number | Gelling time/s | 14d compression strength/MPa |
| 1 | 21.275 | 3.25 |
| 2 | 25.613 | 3.18 |
| 3 | 28.715 | 2.53 |
| 4 | 20.475 | 3.25 |
| 5 | 24.126 | 3.99 |
| 6 | 20.920 | 3.00 |
| 7 | 24.743 | 3.60 |
| 8 | 26.665 | 3.76 |
| 9 | 24.148 | 4.15 |
By table 2, it is apparent that provided by the invention work as single hole water yield ＞ 10m3There are solution cavities for/h or rich water tunnel
When, grouting serous fluid is in 30s~60s inner gels, and compression strength is high, reaches requirement of engineering.
Embodiment 2
The present invention is that embodiment provides a kind of rich water tunnel grouting serous fluid, when single hole water yield is ＞ 5m3/ h, and≤10m3/
When h, the proportioning of grouting serous fluid is as shown in table 3 below.
The grouting serous fluid of 3 serial number 10-12 of table matches
| Serial number | The ratio of mud | Waterglass | Retarder |
| 10 | 1:1 | 14.5% | 0.60% |
| 11 | 1:1 | 15% | 0.70% |
| 12 | 1:1 | 15.5% | 0.80% |
Above-mentioned retarder is disodium bicarbonate.
The grouting process of above-mentioned rich water tunnel grouting serous fluid first carries out cement list and starches slip casting, continues 30min, be then changed to
Two fluid grouting is all the way waterglass, is all the way cement, the cement mixing of retarder slurry, controls single slurry slip casting and two fluid grouting
Grouting pressure is identical, and slip casting initial pressure is 0.9-1MPa, and grouting pressure is no more than 4.5MPa during slip casting.
The grouting serous fluid of above-mentioned serial number 10-12 carries out performance detection after slip casting, and testing result is as shown in table 4 below.
4 performance test results of table
| Serial number | Gelling time/s | 14d compression strength/MPa |
| 10 | 110.375 | 3.14 |
| 11 | 102.358 | 3.25 |
| 12 | 109.681 | 3.19 |
By table 4, it is apparent that single hole water yield provided by the invention is ＞ 5m3/ h, and≤10m3When/h, slip casting slurry
Liquid is in 60s-120s inner gels, and compression strength is high, reaches requirement of engineering.
Embodiment 3
The present invention is that embodiment provides a kind of rich water tunnel grouting serous fluid, when single hole water yield is ＞ 2m3/ h, and≤5m3/h
When, the proportioning of grouting serous fluid is as shown in table 5 below.
The grouting serous fluid of 5 serial number 13-15 of table matches
| Serial number | The ratio of mud | Waterglass | Retarder |
| 13 | 1:1 | 14.5% | 0.70% |
| 14 | 1:1 | 15% | 0.90% |
| 15 | 1:1 | 15.5% | 1.00% |
Above-mentioned retarder is disodium bicarbonate.
The grouting process of above-mentioned rich water tunnel grouting serous fluid is all the way waterglass using bi-slurry grouting method, is all the way water
The cement mixing slurry of mud, retarder.
The grouting serous fluid of above-mentioned serial number 13-15 carries out performance detection after slip casting, and testing result is as shown in table 6 below.
6 performance test results of table
| Serial number | Gelling time/s | 14d compression strength/MPa |
| 13 | 121.352 | 3.15 |
| 14 | 126.487 | 3.27 |
| 15 | 123.684 | 3.26 |
It is by table 6, it is apparent that provided by the invention when single hole water yield is ＞ 2m3/ h, and≤5m3When/h, slip casting slurry
Liquid is in 120s or more gels, and compression strength is high, reaches requirement of engineering.
Embodiment 4
The present invention is that embodiment provides a kind of rich water tunnel grouting serous fluid, as single hole water yield ＞ 10m3/ h or rich water tunnel
There are when solution cavity, the proportioning of grouting serous fluid is as shown in table 7 below.
The grouting serous fluid of 7 serial number 16-18 of table matches
| Serial number | The ratio of mud | Waterglass | Polyacrylamide | Water-reducing agent |
| 16 | 1:1 | 15% | 1% | 2% |
| 17 | 1:1 | 15% | 1.25% | 2% |
| 18 | 1:1 | 15% | 1.50% | 2% |
Above-mentioned water-reducing agent is poly- naphthalene formaldehyde sulfonate salt.
The grouting process of above-mentioned rich water tunnel grouting serous fluid, takes bi-slurry grouting method, is all the way waterglass, is all the way water
The cement mixing slurry of mud, coagulant, water-reducing agent, slip casting initial pressure is 0.9-1MPa, and grouting pressure is no more than during slip casting
5.5MPa。
Embodiment 5
The present invention is that embodiment provides a kind of rich water tunnel grouting serous fluid, as single hole water yield ＞ 10m3/ h or rich water tunnel
There are when solution cavity, the proportioning of grouting serous fluid is as shown in table 8 below.
The grouting serous fluid of 8 serial number 19-21 of table matches
| Serial number | The ratio of mud | Waterglass | Calcium aluminate | Water-reducing agent |
| 19 | 1:1 | 15% | 1% | 2% |
| 20 | 1:1 | 15% | 1.25% | 2% |
| 21 | 1:1 | 15% | 1.50% | 2% |
Above-mentioned water-reducing agent is poly- naphthalene formaldehyde sulfonate salt.
The grouting serous fluid of serial number 16-21 is subjected to performance detection after slip casting, testing result is as shown in table 9 below.
9 performance test results of table
From table 9, it is apparent that polyacrylamide coagulates significant effect than the rush of calcium aluminate.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modification, equivalent replacement or improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (10)
1. a kind of rich water tunnel grouting serous fluid, it is characterised in that：As single hole water yield ＞ 10m3There are solution cavities for/h or rich water tunnel
When, the grouting serous fluid includes component A and B component；Wherein
Component A is starched for cement mixing, including cement, water, coagulant and water-reducing agent, and the ratio of mud of the water and cement is (0.8-
1):1, it is coagulant in terms of 100% by the quality of water in component A：1-1.25%, water-reducing agent：1.5-2.5%；B component is water glass
Glass, by cement mixing starch in water quality be 100% in terms of, waterglass：10-20%；
When single hole water yield is ＞ 5m3/ h, and≤10m3When/h, the grouting serous fluid includes component C, D components and component E；Its
In：
Component C is starched for cement list, including the ratio of mud is (0.8-1):1 water and cement；D groups are divided into cement mixing slurry, including water
The ratio of mud of mud, water and retarder, the water and cement is (0.8-1):1, the gross mass with water in component C and D components is
100% meter, retarder：0.6-0.8%；Component E is waterglass, is water in terms of 100% by the gross mass of water in component C and D components
Glass：14.5-15.5%；
When single hole water yield is ＞ 2m3/ h, and≤5m3/ h, the grouting serous fluid include F components and G components, and wherein F groups are divided into water
The ratio of mud of mud mixing slurry, including cement, water and retarder, the water and cement is (0.8-1):1, with the matter of water in F components
Amount is 100% meter, retarder：0.7%-1%；G groups are divided into waterglass, are waterglass in terms of 100% by the quality of water in F components：
14.5-15.5%.
2. rich water tunnel grouting serous fluid as described in claim 1, it is characterised in that：The coagulant is polyacrylamide or aluminium
One kind in sour calcium.
3. rich water tunnel grouting serous fluid as claimed in claim 2, it is characterised in that：The coagulant is polyacrylamide.
4. rich water tunnel grouting serous fluid as described in claim 1, it is characterised in that：The water-reducing agent is naphthalene series high-efficiency diminishing
Agent.
5. rich water tunnel grouting serous fluid as described in claim 1, it is characterised in that：The retarder is phosphate or metaphosphoric acid
One kind in salt.
6. rich water tunnel grouting serous fluid as claimed in claim 5, it is characterised in that：The retarder is sodium dihydrogen phosphate.
7. rich water tunnel grouting serous fluid as described in claim 1, it is characterised in that：The Baume degrees of the waterglass is 38-
40Be', modulus 3.1-3.4.
8. a kind of rich water tunnel grouting process, it is characterised in that：As single hole water yield ＞ 10m3There are solution cavities for/h or rich water tunnel
When, bi-slurry grouting method is taken, is starched all the way for component A cement mixing, is all the way B component waterglass, slip casting initial pressure is 0.9-
1MPa；
When single hole water yield is ＞ 5m3/ h, and≤10m3When/h, first carries out component C cement list and starch slip casting, continue 25-35min, so
After be changed to two fluid grouting, be all the way D component cement mixing slurries, be all the way waterglass, slip casting initial pressure be 0.9-1MPa；
When single hole water yield is ＞ 2m3/ h, and≤5m3It is all the way F component cement mixing slurries using bi-slurry grouting method when/h, one
Road is G component waterglass.
9. rich water tunnel grouting process as claimed in claim 7, it is characterised in that：As single hole water yield ＞ 10m3/ h or rich water
Tunnel is there are when solution cavity, and grouting pressure is no more than 5.5MPa during slip casting.
10. rich water tunnel grouting process as claimed in claim 7, it is characterised in that：When single hole water yield is ＞ 5m3/ h, and≤
10m3When/h, grouting pressure is no more than 4.5MPa during slip casting.
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| CN109608143A (en) * | 2019-02-25 | 2019-04-12 | 中国矿业大学 | A kind of quick-setting early strength cement-silicate double solution grouting material and its application method |
| CN116606108A (en) * | 2023-05-17 | 2023-08-18 | 江河工程检验检测有限公司 | High-performance backfill grouting material for TBM construction of water-rich tunnel section and preparation method thereof |
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| CN116606108A (en) * | 2023-05-17 | 2023-08-18 | 江河工程检验检测有限公司 | High-performance backfill grouting material for TBM construction of water-rich tunnel section and preparation method thereof |
| CN116606108B (en) * | 2023-05-17 | 2024-05-24 | 江河安澜工程咨询有限公司 | High-performance backfill grouting material for TBM construction of water-rich tunnel section and preparation method thereof |
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Effective date of registration: 20220113 Address after: 050000 17 North East Ring Road, Shijiazhuang, Hebei Patentee after: SHIJIAZHUANG TIEDAO University Patentee after: CHINA RAILWAY 14TH BUREAU GROUP 3RD ENGINEERING Co.,Ltd. Patentee after: Guizhou ZIWANG Expressway Construction Co.,Ltd. Address before: 050043 No. 17, North Second Ring Road, Hebei, Shijiazhuang Patentee before: SHIJIAZHUANG TIEDAO University Patentee before: The Third Engineering Co., Ltd. of China Railway 14th Bureau Group |