CN114956768B - Anti-dispersion grouting material for grouting and water plugging of water-rich stratum, and preparation method and construction method thereof - Google Patents
Anti-dispersion grouting material for grouting and water plugging of water-rich stratum, and preparation method and construction method thereof Download PDFInfo
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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
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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
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
- C04B22/06—Oxides, Hydroxides
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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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/2623—Polyvinylalcohols; Polyvinylacetates
-
- 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/2676—Polystyrenes
-
- 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/2682—Halogen containing polymers, e.g. PVC
-
- 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/2688—Copolymers containing at least three different monomers
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
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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
- 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
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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
- 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
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- 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
Abstract
The invention belongs to the field of grouting materials, and discloses an anti-dispersion grouting material for grouting and plugging water in a water-rich stratum, a preparation method and a construction method. The grouting material comprises: a powder material A component and a liquid material B component; the powder A component comprises: a gelling material, polymer rubber powder and an auxiliary agent; the liquid material B comprises the following components: silicate, silica sol, water glass modifier and water. The invention greatly improves the toughness, the adhesiveness and the calculus rate of the grouting calculus body, thereby improving the water dispersion resistance of the grouting calculus body, and being more suitable for grouting water shutoff engineering of water-rich stratum.
Description
Technical Field
The invention belongs to the field of grouting materials, and in particular relates to an anti-dispersion grouting material for grouting and plugging water in a water-rich stratum, a preparation method and a construction method.
Background
In recent years, china develops at a high speed in underground engineering construction, and because of the wide range of operators in China, engineering hydrogeology is complex, and part of important engineering construction relates to water-rich stratum, geological disasters are easy to occur. The water-rich stratum has extremely bad geological conditions and often contains pores, dynamic and static water, fillers and other geological characteristics (such as sand layers, sand gravel, fault joint fracture development, karst development and other strata). Due to the characteristics of large water pressure, uncoordinated stress, poor cementing property and the like of the water-rich stratum, a benign channel of underground water is extremely easy to generate due to improper treatment, so that geological secondary disasters such as water burst and mud burst, foundation settlement, surface runoff water dryness and the like are induced, and huge social and economic losses are caused. Therefore, the seepage-proofing reinforcement engineering of the water-rich pore stratum becomes a key link in the construction process of a plurality of engineering projects.
The grouting technology adopts the technological methods of air pressure, hydraulic pressure or electrochemistry and the like, and fills the materials which can be well cemented with the stratum rock-soil mass into the joint cracks, pores and rock karst cave of the stratum through mechanical equipment. The method can effectively improve the unconfined compressive strength and permeation deformation resistance of the soil body, reduce the stratum porosity, improve the bearing capacity of the foundation, strengthen the physical and mechanical properties and the overall stability of the rock-soil body, and prevent geological disasters in later engineering construction. Along with the development of engineering technology, water-rich stratum encountered in engineering construction is more complex, and when the traditional grouting process and materials are adopted for treatment, a lot of engineering schemes are listed, wherein the treatment failure is caused by the fact that the material performance does not reach the standard.
At present, grouting materials commonly used in grouting construction of underground engineering are also various. The traditional common cement material has the advantages of wide sources, low price, no toxicity, no pollution, simple construction process and the like in technical, economic and ecological aspects. But undeniably, the material has the problems of overlong coagulation time, poor water flow erosion resistance, weak dispersion resistance and erosion resistance, large volume shrinkage deformation after cementing, low calculus rate, slower strength acceleration and the like, and cannot reach the seepage prevention, reinforcement and treatment standard of the water-rich pore stratum. In practical construction applications, grouting is often performed in water-rich formations by reducing the water-cement ratio, but the reduction of the water-cement ratio does not improve the dispersion resistance of the cement slurry, and too low a water-cement ratio makes it difficult to inject the slurry into the formation. In addition, a large number of chemical or high molecular polymer grouting materials are also developed, and the grouting materials have the advantages of low viscosity, strong injectability, good bonding capability, short setting time, easy volume expansion and the like, but have the defects of poor durability, low strength, expensive slurry raw materials, easy environmental pollution and the like.
Therefore, the conventional grouting material is difficult to meet the grouting water plugging requirement of the water-rich stratum, and a grouting material with excellent water dispersibility is needed, and meanwhile, the grouting material is adjustable in setting time, low in cost and environment-friendly.
Disclosure of Invention
The invention aims at overcoming the defects of the prior art and provides an anti-dispersion grouting material for grouting and plugging water in a water-rich stratum, a preparation method and a construction method. The invention greatly improves the toughness, the adhesiveness and the calculus rate of the grouting calculus body, thereby improving the water dispersion resistance of the grouting calculus body, and being more suitable for grouting water shutoff engineering of water-rich stratum.
In order to achieve the above object, a first aspect of the present invention provides an anti-dispersion grouting material for grouting water shutoff of a water-rich formation, the grouting material comprising: a powder material A component and a liquid material B component;
the powder A component comprises: a gelling material, polymer rubber powder and an auxiliary agent;
the liquid material B comprises the following components: silicate, silica sol, water glass modifier and water.
According to the present invention, preferably, the powder a component comprises the following components in parts by weight: 100-130 parts of cementing material, 0.1-1.5 parts of polymer rubber powder and 0.5-3.2 parts of auxiliary agent; the liquid material B comprises the following components in parts by weight: 40-70 parts of silicate, 1-15 parts of silica sol, 0.05-0.25 part of water glass modifier and 10-60 parts of water.
Further preferably, the powder A component comprises the following components in parts by weight: 100-130 parts of cementing material, 0.6-1.0 part of polymer rubber powder and 0.5-3.2 parts of auxiliary agent; the liquid material B comprises the following components in parts by weight: 55-70 parts of silicate, 6-9 parts of silica sol, 0.12-0.20 part of water glass modifier and 20-40 parts of water.
According to the present invention, preferably, the weight ratio of the powder a component and the liquid B component is (1 to 1.5): (0.75-1.5).
According to the present invention, preferably, the gelling substance comprises: cement and zeolite powder. Further preferably, the gelling substance comprises the following components in parts by weight: 90-110 parts of cement and 10-20 parts of zeolite powder.
In the invention, the zeolite powder has a special frame-shaped structure, is internally filled with cavities and pore canals with different pore sizes, has larger openness and hydrophilicity, can reduce the bleeding of grouting slurry and increase the fluidity of the grouting slurry. Meanwhile, the zeolite powder contains a certain amount of active silicon and active aluminum, can participate in the hydration process of cement, and improves the strength of the stone body.
According to the present invention, preferably, the cement is at least one of 32.5 Portland cement, 32.5R Portland cement, 42.5 Portland cement, and 42.5R Portland cement.
In the invention, the polymer rubber powder is used as a toughening component, and after the polymer rubber powder is dissolved in water, a polymer film is gradually formed in the hydration process of the slurry, and flexible connection is formed between brittle frameworks formed by gelled substances, so that the crack resistance of the grouting stone body is improved, and meanwhile, the adhesiveness to the contacted materials is enhanced, so that the stone body formed after the slurry is injected into a stratum is firmly bonded with a rock-soil body, and the water blocking performance is improved. Therefore, according to the invention, preferably, the polymer rubber powder is at least one of vinyl acetate and ethylene copolymerized latex powder, ethylene and vinyl chloride and vinyl laurate ternary copolymerized latex powder, vinyl acetate and ethylene and higher fatty acid vinyl ester ternary copolymerized latex powder, vinyl acetate and styrene copolymerized latex powder and vinyl acetate homo-polymerized latex powder.
According to the present invention, preferably, the auxiliary agent includes: flocculant, thickener, water reducer, water repellent, stabilizer, expanding agent and wetting agent. Further preferably, the auxiliary comprises the following components in parts by weight: 0.1 to 0.5 part of flocculating agent, 0.1 to 0.5 part of thickening agent, 0.1 to 0.5 part of water reducing agent, 0.05 to 0.5 part of water repellent, 0.1 to 0.5 part of stabilizing agent, 0.005 to 0.01 part of expanding agent and 0.1 to 0.6 part of wetting agent.
According to the present invention, preferably, the flocculant is an anionic polyacrylamide having a molecular weight of at least one of 1000 ten thousand, 1500 ten thousand and 2000 ten thousand.
According to the present invention, preferably, the thickener is at least one of hydroxypropyl methylcellulose ether, hydroxyethyl methylcellulose ether, sodium polyacrylate, and mineral gum.
In the present invention, a flocculant may be used to increase slurry cohesion and a thickener may be used to increase slurry consistency. The water-dispersing resistance of the slurry is improved by the combination of the flocculating agent and the thickening agent.
According to the present invention, preferably, the water reducing agent is used for improving fluidity of slurry, and is a polycarboxylate water reducing agent and/or a naphthalene water reducing agent.
According to the present invention, preferably, the water repellent is used for ensuring the hydrophobicity of the slurry calculus body, and is at least one of sodium methyl siliconate, sodium ethyl siliconate, potassium stearate and sodium stearate.
According to the present invention, preferably, the stabilizer is polyvinyl alcohol for improving the volume stability of the slurry.
According to the present invention, preferably, the expanding agent is at least one of a magnesium oxide expanding agent, a calcium sulfoaluminate expanding agent and an iron oxide expanding agent, for compensating shrinkage deformation of slurry and improving cracking resistance of a stone body.
According to the present invention, preferably, the wetting agent is used to reduce the surface tension of the slurry and improve the workability of the slurry, and is at least one of polyethylene glycol-600, polyethylene glycol-800 and polyethylene glycol-2000.
According to the present invention, preferably, the water glass modifier is used for slowing down the reaction rate of silica sol and cement, improving the durability of the stone body, and comprises: copper sulfate and aluminum potassium sulfate. Further preferably, the water glass modifier comprises the following components in parts by weight: 0.01 to 1.0 part of copper sulfate and 0.01 to 1.0 part of aluminum potassium sulfate.
Preferably, according to the invention, the silicate is added to regulate the slurry gel time, and is sodium silicate and/or potassium silicate.
In the invention, the silica sol is used for improving the compactness of slurry calculus bodies.
The second aspect of the invention provides a preparation method of the anti-dispersion grouting material for grouting and water shutoff of a water-rich stratum, which comprises the following steps:
s1: stirring and mixing the gelling substance, the polymer rubber powder and the auxiliary agent uniformly to obtain a component A of the powder;
s2: stirring, mixing and dissolving the sodium silicate modifier and water uniformly to obtain a modifier solution; and stirring and mixing the modifier solution, the silicate and the silica sol uniformly to obtain the liquid material B component.
According to the present invention, the stirring time of step S1 is preferably 8-12min.
The third aspect of the invention provides a construction method of the anti-dispersion grouting material for grouting and water shutoff of a water-rich stratum, which comprises the following steps:
(1) Mixing and stirring the powder A component and water uniformly to obtain powder A component slurry;
(2) And uniformly stirring and mixing the slurry of the component A of the powder and the component B of the liquid for construction.
According to the invention, preferably, in step (1), the weight ratio of the powder a component to water is 1:0.5-1.
According to the invention, preferably, in step (2), the volume ratio of the powder a component slurry to the liquid B component is 3-1:1. In the invention, the gel time of the slurry is regulated and controlled by regulating and controlling the volume ratio of the slurry of the powder material A component to the slurry of the liquid material B component so as to facilitate construction.
According to the present invention, preferably, the water-rich formation is at least one of a sand formation, a sand gravel formation, a fault joint fracture development formation, and a karst development formation.
The technical scheme of the invention has the following beneficial effects:
(1) The invention greatly improves the toughness, the adhesiveness and the calculus rate of the grouting calculus body by the matched use of the polymer rubber powder and the silica sol, thereby improving the water dispersion resistance of the grouting calculus body and being more suitable for grouting water shutoff engineering of water-rich stratum.
(2) The grouting material provided by the invention is adjustable in setting time, high in calculus rate, good in calculus physical performance, low in cost, environment-friendly and excellent in water dispersibility.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the preferred embodiments of the present invention are described below, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Example 1
The embodiment provides an anti-dispersion grouting material for grouting and plugging water of a water-rich stratum, which comprises the following components: a powder material A component and a liquid material B component;
the powder A component comprises: 100 parts of cement, 10 parts of zeolite powder, 0.5 part of vinyl acetate and ethylene copolymerized latex powder, 0.2 part of anionic polyacrylamide (with the molecular weight of 1000 ten thousand), 0.1 part of hydroxypropyl methyl cellulose ether, 0.3 part of polycarboxylate water reducer, 0.05 part of organosilicon hydrophobing agent, 0.1 part of polyvinyl alcohol, 0.005 part of magnesium oxide and 0.1 part of polyethylene glycol-600;
the liquid material B comprises the following components: 50 parts of sodium silicate, 5 parts of silica sol, 0.05 part of copper sulfate, 0.05 part of aluminum potassium sulfate and 50 parts of water.
The preparation method of the anti-dispersion grouting material for grouting and plugging water in the water-rich stratum comprises the following steps:
s1: stirring the cement, zeolite powder, vinyl acetate and ethylene copolymerized emulsion powder, anionic polyacrylamide (molecular weight is 1000 ten thousand), hydroxypropyl methyl cellulose ether, polycarboxylate water reducer, organosilicon hydrophobing agent, polyvinyl alcohol, magnesium oxide and polyethylene glycol-600 for 10min, and uniformly mixing to obtain a powder A component;
s2: stirring, mixing and dissolving the copper sulfate, aluminum potassium sulfate and water uniformly to obtain a modifier solution; and stirring and mixing the modifier solution, the sodium silicate and the silica sol uniformly to obtain the liquid material B component.
The construction method of the anti-dispersion grouting material for grouting and plugging water in the water-rich stratum comprises the following steps:
(1) The weight ratio of the powder A component to water is 1:1, mixing, stirring and uniformly mixing to obtain powder A component slurry;
(2) And uniformly stirring and mixing the slurry of the powder component A and the liquid component B according to the volume ratio of 1:1, and performing construction.
Example 2
The present embodiment provides an anti-dispersion grouting material for grouting and plugging water in a water-rich stratum, and the difference between the present embodiment and embodiment 1 is that:
the powder A component comprises: 80 parts of cement, 20 parts of zeolite powder, 0.5 part of vinyl acetate and ethylene copolymerized latex powder, 0.3 part of anionic polyacrylamide (with the molecular weight of 1000 ten thousand), 0.1 part of hydroxypropyl methyl cellulose ether, 0.5 part of polycarboxylate water reducer, 0.07 part of organosilicon hydrophobing agent, 0.1 part of polyvinyl alcohol, 0.005 part of magnesium oxide and 0.2 part of polyethylene glycol-600;
the liquid material B comprises the following components: 50 parts of sodium silicate, 5 parts of silica sol, 0.05 part of copper sulfate, 0.05 part of aluminum potassium sulfate and 50 parts of water.
Example 3
The present embodiment provides an anti-dispersion grouting material for grouting and plugging water in a water-rich stratum, and the difference between the present embodiment and embodiment 1 is that:
the powder A component comprises: 100 parts of cement, 10 parts of zeolite powder, 0.8 part of vinyl acetate and ethylene copolymerized latex powder, 0.5 part of anionic polyacrylamide (with the molecular weight of 1000 ten thousand), 0.1 part of hydroxypropyl methyl cellulose ether, 0.5 part of polycarboxylate water reducer, 0.05 part of organosilicon hydrophobing agent, 0.2 part of polyvinyl alcohol, 0.008 part of magnesium oxide and 0.1 part of polyethylene glycol-600;
the liquid material B comprises the following components: 60 parts of sodium silicate, 10 parts of silica sol, 0.08 part of copper sulfate, 0.08 part of aluminum potassium sulfate and 30 parts of water.
The construction method comprises the following steps: the weight ratio of the powder A component to water is 0.8:1, mixing and stirring uniformly to obtain the slurry of the component A of the powder.
Comparative example 1
This comparative example provides a grouting material comprising:
and (3) solution A: 100 parts of cement and 100 parts of water.
And (2) liquid B: 50 parts of water and 50 parts of sodium silicate.
The configuration method comprises the following steps:
and (3) solution A: the raw materials are weighed according to the proportion, and the raw materials are stirred for 10 minutes by a stirrer to uniformly mix various powder materials.
And (2) liquid B: water and sodium silicate are weighed according to the proportion and poured into water, and stirred for dissolution.
The using method comprises the following steps: the liquid A and the liquid B are mixed according to the volume ratio of 1:1.
Test case
The grouting materials of examples 1 to 3 and comparative example 1 were tested for performance, and the results of Table 1 were obtained.
TABLE 1
In table 1 above:
clotting time and calculus rate were tested according to JC/T2536-2019;
the flexural compressive strength was tested according to GB/T17671-1999;
the method for testing the water dispersibility comprises the following steps: a water moving tank is arranged, and a water inlet and a water outlet are respectively arranged at two ends of the water tank. The flow rate v was controlled to be 0.4m/s. The slurry is stirred uniformly and then poured into water flow directly. And after the liquid flowing out of the water outlet is basically clear water, closing a valve at the water inlet, and measuring the mass of the residual slurry in the water tank. Slurry retention was calculated by dividing the remaining slurry mass by the poured mass.
The foregoing description of embodiments of the invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described.
Claims (8)
1. The preparation method of the dispersion-resistant grouting material for grouting and water plugging of the water-rich stratum is characterized by comprising the following steps of: a powder material A component and a liquid material B component;
the powder A component comprises: a gelling material, polymer rubber powder and an auxiliary agent;
the liquid material B comprises the following components: silicate, silica sol, water glass modifier and water;
the gelling substance consists of the following components: cement and zeolite powder;
the auxiliary agent comprises the following components: flocculant, thickener, water reducer, water repellent, stabilizer, expanding agent and wetting agent;
the water glass modifier comprises: copper sulfate and aluminum potassium sulfate;
the powder A component comprises the following components in parts by weight: 100-130 parts of cementing material, 0.1-1.5 parts of polymer rubber powder and 0.5-3.2 parts of auxiliary agent; the liquid material B comprises the following components in parts by weight: 40-70 parts of silicate, 1-15 parts of silica sol, 0.05-0.25 part of water glass modifier and 10-60 parts of water;
the gelling material comprises the following components in parts by weight: 90-110 parts of cement and 10-20 parts of zeolite powder;
the auxiliary agent comprises the following components in parts by weight: 0.1-0.5 part of flocculating agent, 0.1-0.5 part of thickening agent, 0.1-0.5 part of water reducing agent, 0.05-0.5 part of water repellent, 0.1-0.5 part of stabilizing agent, 0.005-0.01 part of expanding agent and 0.1-0.6 part of wetting agent;
the water glass modifier comprises the following components in parts by weight: 0.01 to 1.0 part of copper sulfate and 0.01 to 1.0 part of aluminum potassium sulfate;
the method comprises the following steps:
s1: stirring and mixing the gelling substance, the polymer rubber powder and the auxiliary agent uniformly to obtain a component A of the powder;
s2: stirring, mixing and dissolving the sodium silicate modifier and water uniformly to obtain a modifier solution; and stirring and mixing the modifier solution, the silicate and the silica sol uniformly to obtain the liquid material B component.
2. The method for preparing the anti-dispersion grouting material for grouting plugging of water-rich stratum according to claim 1, wherein,
the powder A component comprises the following components in parts by weight: 100-130 parts of cementing material, 0.6-1.0 part of polymer rubber powder and 0.5-3.2 parts of auxiliary agent; the liquid material B comprises the following components in parts by weight: 55-70 parts of silicate, 6-9 parts of silica sol, 0.12-0.20 part of water glass modifier and 20-40 parts of water.
3. The method for preparing the anti-dispersion grouting material for grouting plugging of a water-rich stratum according to claim 1, wherein the weight ratio of the powder material A component to the liquid material B component is (1-1.5): (0.75-1.5).
4. The method for preparing the dispersion-resistant grouting material for grouting plugging water of a water-rich stratum according to any one of claims 1 to 3, wherein,
the polymer rubber powder is at least one of vinyl acetate and ethylene copolymerized latex powder, ethylene and vinyl chloride and vinyl laurate ternary copolymerized latex powder, vinyl acetate and ethylene and higher fatty acid vinyl ester ternary copolymerized latex powder, vinyl acetate and styrene copolymerized latex powder and vinyl acetate homopolymerized latex powder.
5. The method for preparing the anti-dispersion grouting material for grouting plugging of water-rich stratum according to claim 4, wherein,
the cement is at least one of 32.5 silicate cement, 32.5R silicate cement, 42.5 silicate cement and 42.5R silicate cement;
the flocculant is anionic polyacrylamide, and the molecular weight of the anionic polyacrylamide is at least one of 1000 ten thousand, 1500 ten thousand and 2000 ten thousand;
the thickener is at least one of hydroxypropyl methyl cellulose ether, hydroxyethyl methyl cellulose ether, sodium polyacrylate and mineral gum;
the water reducer is a polycarboxylate water reducer and/or a naphthalene water reducer;
the water repellent is at least one of sodium methyl siliconate, sodium ethyl siliconate, potassium stearate and sodium stearate;
the stabilizer is polyvinyl alcohol;
the expanding agent is at least one of magnesium oxide expanding agent, calcium sulfoaluminate expanding agent and ferric oxide expanding agent;
the wetting agent is at least one of polyethylene glycol-600, polyethylene glycol-800 and polyethylene glycol-2000;
the silicate is sodium silicate and/or potassium silicate.
6. The method for preparing the anti-dispersion grouting material for grouting and plugging water in a water-rich stratum according to claim 1, wherein the stirring time in the step S1 is 8-12min.
7. The construction method of the dispersion-resistant grouting material for grouting and plugging water in a water-rich stratum, which is prepared by the preparation method of any one of claims 1 to 6, is characterized by comprising the following steps:
(1) Mixing and stirring the powder A component and water uniformly to obtain powder A component slurry;
(2) And uniformly stirring and mixing the slurry of the component A of the powder and the component B of the liquid for construction.
8. The construction method of the dispersion-resistant grouting material for grouting plugging of a water-rich stratum according to claim 7, wherein,
in the step (1), the weight ratio of the powder A component to water is 1:0.5-1;
in the step (2), the volume ratio of the slurry of the powder material A component to the liquid material B component is 3-1:1;
the water-rich stratum is at least one of a sand stratum, a sand gravel stratum, a fault joint fracture development stratum and a karst development stratum.
Priority Applications (1)
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