CN114956768A - 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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- CN114956768A CN114956768A CN202210618594.7A CN202210618594A CN114956768A CN 114956768 A CN114956768 A CN 114956768A CN 202210618594 A CN202210618594 A CN 202210618594A CN 114956768 A CN114956768 A CN 114956768A
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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 water plugging of 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 substance, polymer rubber powder and an auxiliary agent; the liquid material B component comprises: silicate, silica sol, water glass modifier and water. The invention greatly improves the toughness, the adhesion 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 the grouting water plugging engineering of water-rich strata.
Description
Technical Field
The invention belongs to the field of grouting materials, and particularly relates to an anti-dispersion grouting material for grouting and water plugging of a water-rich stratum, a preparation method and a construction method.
Background
In recent years, China is developed at a high speed in underground engineering construction, and as the breadth of the country is wide and engineering hydrogeology is complex, part of major engineering construction relates to water-rich strata, and geological disasters easily occur. The geological conditions of the water-rich stratum are extremely poor, and the water-rich stratum often contains geological characteristics such as pores, dynamic and static water, a filling body and the like (such as a sand layer, sand gravel, fault joint crack development, karst development and the like). Due to the characteristics of high water pressure, inconsistent stress, poor cementation and the like of water-rich stratum, a benign channel of underground water is easily generated due to improper treatment, so that geological secondary disasters such as water inrush and mud gushing, foundation settlement, surface runoff water drying and the like are induced, and huge social and economic losses are caused. Therefore, the seepage-proofing reinforcing engineering of the water-rich pore stratum becomes a key link in the construction process of a plurality of engineering projects.
The grouting technology is to fill the material capable of cementing well with the stratum rock-soil body into the joint cracks, pores and karst caves of the stratum through mechanical equipment by adopting the process methods of air pressure, hydraulic pressure or electrochemistry and the like. The method can effectively improve unconfined compressive strength and anti-seepage deformation capability of the soil body, reduce the porosity of the stratum, improve the bearing capacity of the foundation, enhance the physical and mechanical properties and overall stability of the rock and soil body, and prevent geological disasters in later engineering construction. Along with the development of engineering technology, water-rich strata encountered in engineering construction are more complicated, and when the traditional grouting process and materials are adopted for treatment, a plurality of engineering schemes are listed for treatment failure caused by substandard material performance.
At present, the types of grouting materials commonly adopted in the grouting construction of underground engineering are also various. The traditional common cement material has the technical, economic and ecological advantages of wide source, low price, no toxicity or pollution, simple construction process and the like. But it is undeniable that the material has the problems of too long coagulation time, poor water flow erosion resistance, poor dispersion resistance and corrosion resistance, large volume shrinkage deformation after cementation, low calculus rate, slow strength acceleration and the like, and can not reach the seepage-proofing reinforcing treatment standard of the water-rich pore stratum. In practical construction application, grouting is usually carried out in a water-rich stratum by reducing the water-cement ratio, but the reduction of the water-cement ratio cannot improve the dispersion resistance of the cement paste, and the too low water-cement ratio causes the difficulty in injecting the cement paste into the stratum. In addition, a large amount of chemical or high-molecular polymer grouting materials are developed, and although the grouting materials have the advantages of low viscosity, strong groutability, good bonding capability, short setting time, easy volume expansion and the like, the grouting materials 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 requirement of water plugging in water-rich stratum grouting, and a grouting material with excellent water dispersibility resistance is urgently needed, and meanwhile, the adjustable setting time, low cost and environmental protection of the grouting material are ensured.
Disclosure of Invention
The invention aims to provide an anti-dispersion grouting material for grouting and water plugging of a water-rich stratum, a preparation method and a construction method aiming at the defects of the prior art. The invention greatly improves the toughness, the adhesion and the stone rate of the grouting concretion body, thereby improving the water dispersion resistance of the grouting concretion body and being more suitable for the grouting water plugging engineering of water-rich strata.
In order to achieve the above object, a first aspect of the present invention provides a dispersion-resistant grouting material for grouting and water plugging 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 substance, polymer rubber powder and an auxiliary agent;
the liquid material B component comprises: silicate, silica sol, water glass modifier and water.
According to the invention, preferably, the powder A component comprises the following components in parts by weight: 100 portions of gelling material, 130 portions, 0.1 to 1.5 portions of polymer rubber powder and 0.5 to 3.2 portions of auxiliary agent; the liquid material B component 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 portions of gelling material, 130 portions, 0.6 to 1.0 portion of polymer rubber powder and 0.5 to 3.2 portions of auxiliary agent; the liquid material B component 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 invention, preferably, the weight ratio of the powder A component to the liquid B component is (1-1.5): (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 structure, the interior of the zeolite powder is filled with cavities and pore canals with different pore sizes, and the zeolite powder has larger openness and hydrophilicity, can reduce the bleeding property 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, and can participate in the hydration process of cement, so that the strength of the stone body is improved.
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 slurry, and flexible connection is formed between brittle frameworks formed by gelled substances, so that the crack resistance of a grouting concretion body is improved, the adhesion to contacted materials is enhanced, the concretion body formed after the slurry is injected into a stratum is firmly adhered to a rock-soil body, and the water plugging performance is improved. Therefore, according to the present invention, preferably, the polymer rubber powder is at least one of copolymer latex powder of vinyl acetate and ethylene, terpolymer latex powder of ethylene, vinyl chloride and vinyl laurate, terpolymer latex powder of vinyl acetate, ethylene and vinyl higher fatty acid ester, copolymer latex powder of vinyl acetate and styrene, and homopolymer latex powder of vinyl acetate.
According to the present invention, preferably, the auxiliary agent comprises: flocculating agent, thickening agent, water reducing agent, water repellent, stabilizing agent, expanding agent and wetting agent. Further preferably, the auxiliary comprises the following components in parts by weight: 0.1 to 0.5 portion of flocculating agent, 0.1 to 0.5 portion of thickening agent, 0.1 to 0.5 portion of water reducing agent, 0.05 to 0.5 portion of water repellent, 0.1 to 0.5 portion of stabilizing agent, 0.005 to 0.01 portion of expanding agent and 0.1 to 0.6 portion 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, 1500 and 2000 ten thousand.
According to the present invention, preferably, the thickener is at least one of hydroxypropyl methyl cellulose ether, hydroxyethyl methyl cellulose ether, sodium polyacrylate and mineral gum.
In the present invention, flocculants can be used to increase the cohesion of the slurry and thickeners can be used to increase the consistency of the slurry. The addition of the flocculating agent and the thickening agent improves the water dispersion resistance of the slurry.
According to the invention, preferably, the water reducing agent is used for improving the fluidity of the slurry and is a polycarboxylic acid water reducing agent and/or a naphthalene water reducing agent.
According to the invention, preferably, the water repellent is used for ensuring the hydrophobicity of the stone body of the slurry and is at least one of sodium methyl silanol, sodium ethyl silanol, potassium stearate and sodium stearate.
According to the present invention, preferably, the stabilizer is used for improving the volume stability of the slurry and is polyvinyl alcohol.
According to the present invention, preferably, the expanding agent is used for compensating shrinkage deformation of the slurry and improving cracking resistance of the concretion body, and is at least one of a magnesium oxide expanding agent, a calcium sulphoaluminate expanding agent and an iron oxide expanding agent.
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 invention, preferably, the water glass modifier is used for slowing down the reaction rate of silica sol and cement and improving the durability of stone bodies, and comprises the following components: copper sulfate and potassium aluminum sulfate. Further preferably, the water glass modifier comprises the following components in parts by weight: 0.01-1.0 part of copper sulfate and 0.01-1.0 part of aluminum potassium sulfate.
According to the invention, preferably, the silicate is added to regulate the gelling time of the slurry and is sodium silicate and/or potassium silicate.
In the invention, the silica sol is used for improving the compactness of the slurry stone body.
The invention provides a preparation method of the anti-dispersion grouting material for water plugging by grouting in the water-rich stratum, which comprises the following steps:
s1: uniformly stirring and mixing the gelled substance, the polymer rubber powder and the auxiliary agent to obtain a powder A component;
s2: stirring, mixing and dissolving the water glass modifier and water uniformly to obtain a modifier solution; and uniformly stirring and mixing the modifier solution, the silicate and the silica sol to obtain the component B of the liquid material.
According to the present invention, it is preferable that the stirring time of step S1 is 8-12 min.
The third aspect of the invention provides a construction method of the anti-dispersion grouting material for grouting and water plugging of the water-rich stratum, which comprises the following steps:
(1) mixing the powder A component with water, stirring and mixing uniformly to obtain powder A component slurry;
(2) and stirring and mixing the powder A component slurry and the liquid material B component uniformly 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 the 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 A component to the slurry of the liquid B component, so that the construction is facilitated.
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 adhesion and the calculus rate of the grouting calculus body by matching the polymer rubber powder and the silica sol, thereby improving the water dispersion resistance of the grouting calculus body and being more suitable for the grouting water plugging engineering of water-rich strata.
(2) The grouting material provided by the invention has the advantages of adjustable setting time, high calculus rate, good mechanical property of calculus body, low cost, environmental friendliness and excellent water dispersibility resistance.
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 following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by 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 a dispersion-resistant grouting material for grouting and water plugging of a water-rich stratum, which comprises: 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 polycarboxylic acid water reducing agent, 0.05 part of organic silicon hydrophobic agent, 0.1 part of polyvinyl alcohol, 0.005 part of magnesium oxide and 6000.1 parts of polyethylene glycol-6000.1;
the liquid material B component comprises: 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 water-rich stratum grouting and water plugging comprises the following steps:
s1: stirring the cement, the zeolite powder, the vinyl acetate-ethylene copolymer latex powder, the anionic polyacrylamide (with the molecular weight of 1000 ten thousand), the hydroxypropyl methyl cellulose ether, the polycarboxylic acid water reducing agent, the organic silicon hydrophobic agent, the polyvinyl alcohol, the magnesium oxide and the polyethylene glycol-600 for 10min, and uniformly mixing to obtain a powder A component;
s2: stirring, mixing and dissolving the copper sulfate, the aluminum potassium sulfate and the water uniformly to obtain a modifier solution; and uniformly stirring and mixing the modifier solution, the sodium silicate and the silica sol to obtain the liquid material component B.
The construction method of the anti-dispersion grouting material for grouting and water plugging of the water-rich stratum comprises the following steps:
(1) mixing the powder A component with water according to a weight ratio of 1:1, uniformly mixing and stirring to obtain powder A component slurry;
(2) and uniformly stirring and mixing the slurry of the powder A component and the liquid B component according to the volume ratio of 1:1, and performing construction.
Example 2
The present embodiment provides an anti-dispersion grouting material for water plugging in water-rich stratum grouting, and the present embodiment only differs from embodiment 1 in 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 polycarboxylic acid water reducing agent, 0.07 part of organic silicon hydrophobic agent, 0.1 part of polyvinyl alcohol, 0.005 part of magnesium oxide and 6000.2 parts of polyethylene glycol;
the liquid material B component comprises: 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 water plugging in water-rich stratum grouting, and the present embodiment only differs from embodiment 1 in that:
the powder A component comprises: 100 parts of cement, 10 parts of zeolite powder, 0.8 part of vinyl acetate and ethylene copolymer 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 polycarboxylic acid water reducing agent, 0.05 part of organic silicon hydrophobic agent, 0.2 part of polyvinyl alcohol, 0.008 part of magnesium oxide and 6000.1 parts of polyethylene glycol-6000.1;
the liquid material B component comprises: 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: and (2) mixing the powder A component with water according to the weight ratio of 0.8: 1, mixing, stirring and uniformly mixing to obtain powder A component slurry.
Comparative example 1
The present comparative example provides a grouting material including:
solution A: 100 parts of cement and 100 parts of water.
And B, liquid B: 50 parts of water and 50 parts of sodium silicate.
The configuration method comprises the following steps:
solution A: the raw materials are weighed according to the proportion, and stirred for 10 minutes by a stirrer to uniformly mix various powder materials.
And B, liquid B: and (3) weighing water and sodium silicate according to the proportion, pouring the weighed water into the water, and stirring the water and the sodium silicate to dissolve the water.
The using method comprises the following steps: the solution A and the solution B are mixed according to the volume ratio of 1:1 for use.
Test example
The performance of the grouting materials of examples 1 to 3 and comparative example 1 was tested to obtain the results of table 1.
TABLE 1
In table 1 above:
the condensation time and the calculus rate are tested according to JC/T2536 and 2019;
the flexural and compressive strength is tested according to GB/T17671-1999;
the method for testing the water dispersibility comprises the following steps: a running water tank is arranged, and a water inlet and a water outlet are respectively arranged at the two ends of the water tank. The flow velocity v was controlled to be 0.4 m/s. The slurry is directly poured into water flow after being evenly stirred. And after the liquid flowing out of the water outlet is basically clear water, closing the valve at the water inlet, and measuring the quality of the residual slurry in the water tank. Calculating the retention rate of the slurry by dividing the mass of the residual slurry by the mass of the poured slurry.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not 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 described embodiments.
Claims (10)
1. An anti-dispersion grouting material for grouting and water plugging of a water-rich formation, characterized in that the grouting material comprises: a powder material A component and a liquid material B component;
the powder A component comprises: a gelled substance, polymer rubber powder and an auxiliary agent;
the liquid material B component comprises: silicate, silica sol, water glass modifier and water.
2. The anti-dispersion grouting material for water shutoff of a water-rich formation according to claim 1, wherein,
the powder A component comprises the following components in parts by weight: 100 portions of gelling material, 130 portions, 0.1 to 1.5 portions of polymer rubber powder and 0.5 to 3.2 portions of auxiliary agent; the liquid material B component 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;
preferably, the powder A component comprises the following components in parts by weight: 100 portions of gelling material, 130 portions, 0.6 to 1.0 portion of polymer rubber powder and 0.5 to 3.2 portions of auxiliary agent; the liquid material B component 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 anti-dispersion grouting material for water plugging of water-rich formation in accordance with claim 1, wherein the weight ratio of the powder A component to the liquid B component is (1-1.5): (0.75-1.5).
4. The anti-dispersion grouting material for water shutoff of a water-rich formation according to any one of claims 1 to 3, wherein,
the gelling material comprises: cement and zeolite powder;
the polymer rubber powder is at least one of vinyl acetate and ethylene copolymer latex powder, ethylene, vinyl chloride and vinyl laurate terpolymer latex powder, vinyl acetate, ethylene and high-grade fatty acid vinyl ester terpolymer latex powder, vinyl acetate and styrene copolymer latex powder and vinyl acetate homopolymerization latex powder;
the auxiliary agent comprises: flocculating agent, thickening agent, water reducing agent, water repellent, stabilizing agent, expanding agent and wetting agent;
the water glass modifier comprises: copper sulfate and potassium aluminum sulfate.
5. The anti-dispersion grouting material for water shutoff of a water-rich formation according to claim 4, wherein,
the gel 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 to 0.5 portion of flocculating agent, 0.1 to 0.5 portion of thickening agent, 0.1 to 0.5 portion of water reducing agent, 0.05 to 0.5 portion of water repellent, 0.1 to 0.5 portion of stabilizing agent, 0.005 to 0.01 portion of expanding agent and 0.1 to 0.6 portion of wetting agent;
the water glass modifier comprises the following components in parts by weight: 0.01-1.0 part of copper sulfate and 0.01-1.0 part of aluminum potassium sulfate.
6. The anti-dispersion grouting material for water shutoff of a water-rich formation according to claim 4, wherein,
the cement is at least one of 32.5 Portland cement, 32.5R Portland cement, 42.5 Portland cement and 42.5R Portland 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 thickening agent is at least one of hydroxypropyl methyl cellulose ether, hydroxyethyl methyl cellulose ether, sodium polyacrylate and mineral gum;
the water reducing agent is a polycarboxylic acid water reducing agent and/or a naphthalene water reducing agent;
the water repellent is at least one of sodium methyl silanol, sodium ethyl silanol, potassium stearate and sodium stearate;
the stabilizer is polyvinyl alcohol;
the expanding agent is at least one of a magnesium oxide expanding agent, a calcium sulphoaluminate expanding agent and an iron 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.
7. The method for preparing the anti-dispersion grouting material for water plugging by grouting in the water-rich stratum according to any one of claims 1 to 6, characterized by comprising the following steps:
s1: uniformly stirring and mixing the gelled substance, the polymer rubber powder and the auxiliary agent to obtain a powder A component;
s2: stirring, mixing and dissolving the water glass modifier and water uniformly to obtain a modifier solution; and uniformly stirring and mixing the modifier solution, the silicate and the silica sol to obtain the component B of the liquid material.
8. The preparation method of the anti-dispersion grouting material for water plugging of water-rich formations according to claim 7, wherein the stirring time of step S1 is 8-12 min.
9. The method of constructing a dispersion-resistant grouting material for water shutoff of a water-rich formation according to any one of claims 1 to 6, comprising:
(1) mixing the powder A component with water, stirring and mixing uniformly to obtain powder A component slurry;
(2) and stirring and mixing the powder A component slurry and the liquid material B component uniformly for construction.
10. The method for constructing a dispersion-resistant grouting material for grouting water-plugging a water-rich formation according to claim 9, wherein,
in the step (1), the weight ratio of the powder A component to water is 1: 0.5 to 1;
in the step (2), the volume ratio of the powder A component slurry to the liquid B component is 3-1: 1;
the water-rich stratum is at least one of a sand layer stratum, a sand-gravel stratum, a fault joint fracture development stratum and a karst development stratum.
Priority Applications (1)
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| CN115321927A (en) * | 2022-08-31 | 2022-11-11 | 中国电建集团成都勘测设计研究院有限公司 | Composite cement-based high-temperature flowing water grouting material and preparation method thereof |
| CN116162214A (en) * | 2023-04-26 | 2023-05-26 | 中国地质大学（北京） | Grouting material and application thereof |
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| CN116162214A (en) * | 2023-04-26 | 2023-05-26 | 中国地质大学（北京） | Grouting material and application thereof |
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