CN114920537B - High-permeability and high-bonding type grouting reinforcement material suitable for water-rich crushed rock stratum and preparation method thereof - Google Patents
High-permeability and high-bonding type grouting reinforcement material suitable for water-rich crushed rock stratum and preparation method thereof Download PDFInfo
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- CN114920537B CN114920537B CN202210629671.9A CN202210629671A CN114920537B CN 114920537 B CN114920537 B CN 114920537B CN 202210629671 A CN202210629671 A CN 202210629671A CN 114920537 B CN114920537 B CN 114920537B
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- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 35
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000002562 thickening agent Substances 0.000 claims abstract description 21
- 239000012744 reinforcing agent Substances 0.000 claims abstract description 20
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- 230000015572 biosynthetic process Effects 0.000 claims description 12
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 10
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- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 8
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- 239000010865 sewage Substances 0.000 claims description 5
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- 239000010703 silicon Substances 0.000 claims description 5
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 5
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- 235000010493 xanthan gum Nutrition 0.000 claims description 5
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- 229940082509 xanthan gum Drugs 0.000 claims description 5
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerol Natural products OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 239000012779 reinforcing material Substances 0.000 claims description 4
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 claims description 3
- 229910019142 PO4 Inorganic materials 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims description 3
- 150000008065 acid anhydrides Chemical class 0.000 claims description 3
- 150000004982 aromatic amines Chemical class 0.000 claims description 3
- 229910052918 calcium silicate Inorganic materials 0.000 claims description 3
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 3
- 239000010452 phosphate Substances 0.000 claims description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 3
- 229920002647 polyamide Polymers 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- LQZZUXJYWNFBMV-UHFFFAOYSA-N 1-dodecanol group Chemical group C(CCCCCCCCCCC)O LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 claims description 2
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229920002907 Guar gum Polymers 0.000 claims description 2
- 229920000161 Locust bean gum Polymers 0.000 claims description 2
- 239000004111 Potassium silicate Substances 0.000 claims description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 2
- 229910001860 alkaline earth metal hydroxide Inorganic materials 0.000 claims description 2
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 claims description 2
- 239000006229 carbon black Substances 0.000 claims description 2
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
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- 239000000665 guar gum Substances 0.000 claims description 2
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- 239000010842 industrial wastewater Substances 0.000 claims description 2
- PAZHGORSDKKUPI-UHFFFAOYSA-N lithium metasilicate Chemical compound [Li+].[Li+].[O-][Si]([O-])=O PAZHGORSDKKUPI-UHFFFAOYSA-N 0.000 claims description 2
- 229910052912 lithium silicate Inorganic materials 0.000 claims description 2
- 239000000711 locust bean gum Substances 0.000 claims description 2
- 235000010420 locust bean gum Nutrition 0.000 claims description 2
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 claims description 2
- 229910052913 potassium silicate Inorganic materials 0.000 claims description 2
- 235000019353 potassium silicate Nutrition 0.000 claims description 2
- KVOIJEARBNBHHP-UHFFFAOYSA-N potassium;oxido(oxo)alumane Chemical compound [K+].[O-][Al]=O KVOIJEARBNBHHP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 229910001388 sodium aluminate Inorganic materials 0.000 claims description 2
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 2
- PYODKQIVQIVELM-UHFFFAOYSA-M sodium;2,3-bis(2-methylpropyl)naphthalene-1-sulfonate Chemical compound [Na+].C1=CC=C2C(S([O-])(=O)=O)=C(CC(C)C)C(CC(C)C)=CC2=C1 PYODKQIVQIVELM-UHFFFAOYSA-M 0.000 claims description 2
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- 230000002708 enhancing effect Effects 0.000 claims 1
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- 238000012827 research and development Methods 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
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Images
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- 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
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00732—Uses not provided for elsewhere in C04B2111/00 for soil stabilisation
-
- 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
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- 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)
Abstract
The invention belongs to the field of grouting reinforcement materials, and provides a high-permeability and high-bonding type grouting reinforcement material suitable for a water-rich crushed rock stratum and a preparation method thereof, wherein the grouting reinforcement material comprises the following components in parts by weight: 20 to 35 portions of silicate solution, 30 to 60 portions of curing agent, 10 to 15 portions of accelerating agent, 1 to 5 portions of reinforcing agent, 0.2 to 1 portion of thickening agent, 0.1 to 0.5 portion of surfactant and 15 to 30 portions of waste water. The invention solves the limitation of the performance of the conventional grouting material (such as granular grouting materials of cement, superfine cement and the like), and the conventional grouting material is difficult to enter the gap of the crushed rock to be effectively consolidated, so that the osmotic grouting is difficult to achieve the design effect. And the prepared grouting reinforcement material has low viscosity and good permeability, thereby solving the grouting problem of the crushed rock special stratum, ensuring the overall grouting quality and providing a material management scheme for solving the similar key geological problem of the deep-buried long tunnel.
Description
Technical Field
The invention relates to the field of grouting reinforcement materials, and particularly provides a high-permeability and high-viscosity grouting reinforcement material for a water-rich crushed rock stratum and a preparation method thereof.
Background
The information in this background section is only for enhancement of understanding of the general background of the invention and is not necessarily to be construed as an admission or any form of suggestion that this information forms the prior art that is already known to a person of ordinary skill in the art.
With the rapid development of infrastructure construction, the construction of traffic, water conservancy and hydropower and other heavy projects meets brand new development opportunities, and the construction of deep and long tunnel (tunnel) projects is greatly promoted. Particularly, with the deep expansion of a traffic network to regions distributed all over the great mountains, hundreds of tunnel projects with buried depths of kilometers and lengths of more than 10 kilometers appear, and the tunnel projects have the remarkable characteristics of large buried depths, long tunnel lines, high stress, strong karst, high water pressure, complex structure, frequent disasters and the like.
The total length of some tunnels is about 60km, the maximum buried depth exceeds 1000m, and the tunnels pass through a large number of unfavorable geological sections such as fault broken zones, karsts, broken rocks and crushed rocks along the way, so that the major technical problems that the water and mud burst disaster control is difficult, the unfavorable geological section of the crushed rocks is difficult to grout and reinforce and the like are faced, and the occurrence frequency of geological disasters and the engineering construction difficulty are rare in the world. Therefore, the research and development of high-permeability and high-bonding grouting reinforcement materials and key application technologies thereof need to be developed, and a material treatment scheme and technical support are provided for solving the similar key geological problems of the deep-buried long tunnel.
At present, granular grouting materials such as cement and superfine cement are mainly used as materials for treating underground engineering grouting materials, but the groutability of crushed rock is extremely poor, the granules of the crushed rock subjected to structural grinding are extremely fine (less than or equal to 0.01 mm), and the grouting material has the characteristics of strong compactness, poor permeability, certain water resistance and the like, conventional grout is difficult to enter gaps of the crushed rock, and the designed effect is difficult to achieve by osmotic grouting. Meanwhile, along with the enhancement of social environmental protection consciousness, the problems of non-renewable raw materials for preparing cement, high production energy consumption, high cost and the like are gradually highlighted.
Disclosure of Invention
At present, the cement-based grouting material is widely applied to the field of underground engineering disaster prevention and control, but the cement-based grouting material has the limitation of performance (poor permeability), is difficult to be suitable for a crushed rock special stratum, and has no high-permeability and high-bonding type grouting reinforcing material with strong applicability to the crushed rock stratum in the market. Meanwhile, cement production is increasingly prominent in resource problems (limestone resources are not renewable, clay resources are limited, coal mining charcoal resources are not renewable) and environmental problems (ecological environment problems, aggravation of greenhouse effect and large energy consumption).
Aiming at the defects, the invention provides a high-permeability and high-viscosity grouting reinforcement material for a water-rich crushed rock stratum. The material has the advantages of low viscosity, high permeability, high bonding performance and the like, no use of traditional cement, reduction of the cement consumption, greenness, environmental protection, simple preparation process, low cost and suitability for popularization and application to the society.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a high-permeability and high-bonding type grouting reinforcement material for a water-rich crushed rock stratum, which comprises the following raw materials in parts by weight: 20-35 parts of silicate solution, 30-60 parts of curing agent, 10-15 parts of accelerating agent, 1-5 parts of reinforcing agent, 0.2-1 part of thickening agent, 0.1-0.5 part of surfactant and 15-30 parts of wastewater;
the curing agent is one or a mixture of any more of glyceride, ethyl acetate, diluted phosphoric acid, condensed phosphate, beta-dicalcium silicate, aliphatic amine, alicyclic amine, low-molecular polyamide, aromatic amine, phenolic amine, acid anhydride, imidazole and mercaptan.
In order to fulfill the aim of grouting, water plugging and reinforcing the crushed rock special stratum, the invention develops a grouting reinforcing material with low viscosity and good permeability, thereby solving the problem of grouting of the local special stratum.
The invention provides a preparation method of a high-permeability and high-bonding type grouting reinforcement material for a water-rich crushed rock stratum, which comprises the following steps:
mixing a silicate solution, a thickening agent and a reinforcing agent to obtain a mixture A, and mixing a curing agent, an accelerator and wastewater to obtain a mixture B;
and mixing and stirring the mixture A and the mixture B uniformly according to a ratio to obtain a mixture C, thus obtaining the high-permeability and high-bonding type grouting reinforcement material.
In a third aspect of the invention, a method for grouting reinforcement of a porous crushed rock/fractured rock special stratum by using a high-permeability and high-bonding type grouting reinforcement material for a water-rich crushed rock stratum is provided, which comprises the following steps:
mixing and stirring the mixture A and the mixture B uniformly according to a proportion to obtain grouting slurry;
and pressing the grouting slurry into the injected stratum through the grouting holes.
The invention has the advantages of
(1) The invention provides a high-permeability and high-viscosity grouting reinforcement material for a water-rich crushed rock stratum and a preparation method thereof, wherein a silicate solution is a water-soluble solution, the slurry has low viscosity and good pourability, and the permeability coefficient can reach 10 -5 ～10 - 6 cm/s, in contrast to granular pulp, is suitable as a penetrating material per se, but is not strong per se. The invention adopts curing agent, accelerating agent, reinforcing agent, thickening agent and surfactant to modify silicate solution, the silicate solution is treated by the thickening agent, the reinforcing agent and the surfactant in advance, the thickening agent and the reinforcing agent improve the bonding property of the silicate solution, and the gel is greatly enhancedThe surfactant has a hydrophobic alkyl chain capable of being adsorbed on the surface of the crushed rock particles, a hydrophilic group with a benzene ring tilts to a water phase, the surface tension of water and the liquid-solid interfacial tension of the crushed rock particles are reduced, the contact angle of the water on the surface of the crushed rock particles is reduced from large to small, the surface property of the crushed rock particles is changed from hydrophobic to hydrophilic, and the performance of the solution for wetting the crushed rock particles is enhanced, so that the penetration range of pulp in a crushed rock stratum is enlarged; and compounding the modified silicate solution by using a curing agent and an accelerating agent, wherein the curing agent can react with alkali metal ions in the silicate solution to generate a water-insoluble substance, and the silicic acid gel precipitated during hardening has the effect of blocking capillary pores to prevent water permeation, so that the effects of grouting reinforcement and water plugging of the crushed rock stratum are achieved. The accelerator can adjust the gelation time of the silicate solution from dozens of seconds to dozens of minutes.
(2) The high-permeability and high-bonding type grouting reinforcement material prepared by the invention has the advantages of wide raw material source, low manufacturing cost, small initial viscosity, controllable setting time, simplicity and convenience in operation and suitability for popularization.
(3) The preparation method is simple, strong in practicability and easy to popularize.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
Fig. 1 is a schematic structural diagram of the application of the high permeability and high bond type grouting reinforcement material for grouting reinforcement treatment of a porous crushed/fractured rock specific formation according to one or more embodiments of the invention.
Wherein: 1-a slurry tank; 2-grouting pump; 3-control of the valve; 4-grouting pipe; 5-injected formation (crushed rock formation); 6-a hydraulic system; 7-a water supply system; 8-a monitoring system; 9-support.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
A high-permeability and high-bonding type grouting reinforcement material for a water-rich crushed rock stratum is characterized by comprising the following components in parts by weight: 20-35 parts of silicate solution, 30-60 parts of curing agent, 10-15 parts of accelerating agent, 1-5 parts of reinforcing agent, 0.2-1 part of thickening agent, 0.1-0.5 part of surfactant and 15-30 parts of wastewater;
in some embodiments, the silicate solution is one or a combination of any of sodium silicate, lithium silicate, potassium silicate and ammonium silicate;
in some embodiments, the curing agent is one or a combination of any more of glycerol ester, ethyl acetate, diluted phosphoric acid, condensed phosphate (Al salt, mg salt, ca salt, si salt and the like), beta-dicalcium silicate, aliphatic amine, alicyclic amine, low molecular polyamide, aromatic amine, phenolic amine, acid anhydride, imidazole and mercaptan;
in some embodiments, the accelerating agent is one or a combination of any several of alkaline earth metal carbonate, alkaline earth metal hydroxide, sodium aluminate, potassium aluminate and silicon aluminate;
in some embodiments, the reinforcing agent is one or a combination of any of calcium carbonate, stone powder, graphite, carbon black and silica;
in some embodiments, the thickening agent is one or a combination of any of xanthan gum, locust bean gum and guar gum;
in some embodiments, the surfactant is lauryl alcohol, sodium dodecylbenzene sulfonate, sodium diisobutylnaphthalenesulfonate, or sodium lauryl sulfate;
in some embodiments, the wastewater refers to water which cannot be recycled after certain technical treatment or is purified and has a treatment difficulty which does not meet a certain standard after primary pollution, and the wastewater comprises domestic sewage, industrial wastewater and other useless water such as primary rainwater which flows into a drainage pipe canal;
a preparation method of a high-permeability and high-bonding type grouting reinforcement material for a water-rich crushed rock stratum comprises the following steps:
the first process step: mixing a silicate solution, a thickening agent and a reinforcing agent to obtain a mixture A, and mixing a curing agent, an accelerator and wastewater to obtain a mixture B;
and a second step: mixing and stirring the mixture A and the mixture B uniformly according to a proportion to obtain a mixture C, and obtaining a high-permeability and high-bonding type grouting reinforcement material;
the high-permeability and high-bonding type grouting reinforcement material for the water-rich crushed rock stratum is particularly applied to grouting reinforcement of a special stratum of porous crushed rock/cracked rock.
The invention provides a method for grouting and reinforcing a special stratum of porous crushed rock/fractured rock by using the high-permeability and high-bonding type grouting and reinforcing material, which comprises the following steps:
mixing and stirring the mixture A and the mixture B uniformly according to a proportion to obtain grouting slurry;
and pressing the grouting slurry into the injected stratum through the grouting holes.
The present invention is described in further detail below with reference to specific examples, which should be construed as illustrative rather than restrictive.
Example 1:
the high-permeability and high-bonding type grouting reinforcement material comprises the following components in parts by weight: 20 parts of silicate solution, 40 parts of curing agent, 10 parts of accelerating agent, 3 parts of reinforcing agent, 0.5 part of thickening agent, 0.3 part of surfactant and 20 parts of wastewater;
the silicate solution is sodium silicate solution;
the curing agent is dilute phosphoric acid;
the accelerating agent is silicon aluminate;
the reinforcing agent is calcium carbonate;
the thickening agent is xanthan gum;
the surfactant is sodium dodecyl sulfate;
the wastewater is domestic sewage;
the preparation method of the high-permeability and high-bonding type grouting reinforcement material comprises the following steps:
the first process step: mixing a silicate solution, a thickening agent, a reinforcing agent and a surfactant to obtain a mixture A, and mixing a curing agent, an accelerator and wastewater to obtain a mixture B;
and a second step: mixing and stirring the mixture A and the mixture B uniformly according to a proportion to obtain a mixture C, and obtaining a high-permeability and high-bonding type grouting reinforcement material;
the high-permeability and high-bonding type grouting reinforcement material for the water-rich crushed rock stratum is particularly applied to grouting reinforcement of a special stratum of porous crushed rock/cracked rock.
Example 2:
the high-permeability and high-bonding type grouting reinforcement material comprises the following components in parts by weight: 20 parts of silicate solution, 50 parts of curing agent, 10 parts of accelerator, 3 parts of reinforcing agent, 0.5 part of thickening agent, 0.3 part of surfactant and 20 parts of wastewater;
the silicate solution is sodium silicate solution;
the curing agent is dilute phosphoric acid;
the accelerating agent is silicon aluminate;
the reinforcing agent is calcium carbonate;
the thickening agent is xanthan gum;
the surfactant is sodium dodecyl sulfate;
the wastewater is domestic sewage;
the preparation method of the high-permeability and high-bonding type grouting reinforcement material comprises the following steps:
the first process step: mixing a silicate solution, a thickening agent, a reinforcing agent and a surfactant to obtain a mixture A, and mixing a curing agent, an accelerator and wastewater to obtain a mixture B;
and a second step: mixing and stirring the mixture A and the mixture B uniformly according to a proportion to obtain a mixture C, and obtaining a high-permeability and high-bonding type grouting reinforcement material;
the high-permeability and high-bonding type grouting reinforcement material for the water-rich crushed rock stratum is particularly applied to grouting reinforcement of a special stratum of porous crushed rock/cracked rock.
Example 3:
the high-permeability and high-bonding type grouting reinforcement material comprises the following components in parts by weight: 20 parts of silicate solution, 60 parts of curing agent, 10 parts of accelerator, 3 parts of reinforcing agent, 0.5 part of thickening agent, 0.3 part of surfactant and 20 parts of wastewater;
the silicate solution is sodium silicate solution;
the curing agent is diluted phosphoric acid;
the accelerating agent is silicon aluminate;
the reinforcing agent is calcium carbonate;
the thickening agent is xanthan gum;
the surfactant is sodium dodecyl sulfate;
the wastewater is domestic sewage;
the preparation method of the high-permeability and high-bonding type grouting reinforcement material comprises the following steps:
the first process step: mixing a silicate solution, a thickening agent, a reinforcing agent and a surfactant to obtain a mixture A, and mixing a curing agent, an accelerator and wastewater to obtain a mixture B;
and a second step: mixing and stirring the mixture A and the mixture B uniformly according to a proportion to obtain a mixture C, and obtaining a high-permeability and high-bonding type grouting reinforcement material;
the high-permeability and high-bonding type grouting reinforcement material for the water-rich crushed rock stratum is particularly applied to grouting reinforcement of a special stratum of porous crushed rock/cracked rock.
Comparative example 1:
the difference from example 1 is that: the high-permeability and high-bonding type grouting reinforcement material is replaced by cement slurry, and the water-cement ratio is 0.6.
The same preparation method as that of example 1 is adopted to carry out grouting reinforcement on the crushed rock stratum, and the corresponding performance of the grouting reinforcement material prepared in the example is tested.
Comparative example 2:
the difference from example 1 is that: the high-permeability and high-bonding type grouting reinforcement material is replaced by superfine cement slurry, and the water-cement ratio is 0.6.
The same preparation method as that of example 1 was adopted to carry out grouting reinforcement on the crushed rock stratum, and the corresponding performance of the grouting reinforcement material prepared in the example was tested.
Comparative example 3:
the difference from example 1 is that: the high-permeability and high-bonding type grouting reinforcement material is replaced by cement-water glass slurry, the water cement ratio of the cement slurry is 0.6, and the volume ratio of the cement-water glass slurry is 3.
The same preparation method as that of example 1 is adopted to carry out grouting reinforcement on the crushed rock stratum, and the corresponding performance of the grouting reinforcement material prepared in the example is tested.
Performance index
The high-permeability and high-bonding type grouting reinforcement material obtained in the embodiment is applied to polluted soil, and a grouting reinforcement effect evaluation test is carried out, so that the following performance results can be obtained:
therefore, the reinforcing grouting material with low viscosity, high permeability and high bonding is prepared, the use of traditional cement is not used, the cement consumption is reduced, and the environment is protected.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. The high-permeability and high-bonding type grouting reinforcement material suitable for the water-rich crushed rock stratum is characterized by comprising the following raw materials in parts by weight: 20-35 parts of silicate solution, 30-60 parts of curing agent, 10-15 parts of accelerating agent, 1-5 parts of reinforcing agent, 0.2-1 part of thickening agent, 0.1-0.5 part of surfactant and 15-30 parts of waste water;
the curing agent is one or a combination of any more of glycerol ester, ethyl acetate, diluted phosphoric acid, condensed phosphate, beta-dicalcium silicate, aliphatic amine, alicyclic amine, low molecular polyamide, aromatic amine, phenolic amine, acid anhydride, imidazole and mercaptan.
2. The high-permeability and high-viscosity joint type grouting reinforcement material suitable for the water-rich crushed rock formations as claimed in claim 1, wherein the silicate solution is one or a combination of any of sodium silicate, lithium silicate, potassium silicate and ammonium silicate.
3. The high-permeability and high-viscosity grouting reinforcement material suitable for the water-rich crushed rock formation as claimed in claim 1, wherein the accelerator is one or a combination of any of alkaline earth metal carbonate, alkaline earth metal hydroxide, sodium aluminate, potassium aluminate and silicon aluminate.
4. The high-permeability and high-bonding type grouting reinforcement material suitable for the water-rich crushed rock formation as claimed in claim 1, wherein the reinforcing agent is one or a combination of any two of calcium carbonate, stone powder, graphite, carbon black and silica.
5. The high-permeability and high-bonding type grouting reinforcement material suitable for the water-rich crushed rock formation as claimed in claim 1, wherein the thickener is one or a combination of any of xanthan gum, locust bean gum and guar gum.
6. The high permeability, high bond type grouting reinforcement material for water-rich crushed rock formations as claimed in claim 1, wherein the surfactant is lauryl alcohol, sodium dodecylbenzene sulfonate, sodium diisobutylnaphthalenesulfonate or sodium dodecyl sulfate.
7. The high permeability, high bond type grouting reinforcement material for water-rich crushed rock formations according to claim 1, wherein the waste water comprises: domestic sewage, industrial wastewater and water flowing into a drainage pipe canal from the initial rain.
8. The preparation method of the high-permeability and high-bonding type grouting reinforcement material suitable for the water-rich crushed rock formation, which is described in claim 1, is characterized by comprising the following steps:
mixing a silicate solution, a thickening agent and an enhancing agent to obtain a mixture A, and mixing a curing agent, an accelerating agent and wastewater to obtain a mixture B;
and mixing and stirring the mixture A and the mixture B uniformly according to a ratio to obtain a mixture C, thus obtaining the high-permeability and high-bonding type grouting reinforcement material.
9. The method for preparing the high-permeability and high-bonding type grouting reinforcement material suitable for the water-rich crushed rock formations according to claim 8, wherein the grouting reinforcement material prepared by the method is used for grouting reinforcement of special porous crushed rock/cracked rock formations.
10. A method for grouting and reinforcing a special porous crushed rock/fractured rock stratum by using a high-permeability and high-bonding type grouting and reinforcing material suitable for a water-rich crushed rock stratum comprises the following steps: pressing the grouting reinforcement material prepared by the preparation method according to claim 8 into a stratum to be grouted through the grouting hole.
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| CN202210629671.9A CN114920537B (en) | 2022-06-06 | 2022-06-06 | High-permeability and high-bonding type grouting reinforcement material suitable for water-rich crushed rock stratum and preparation method thereof |
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