CN109095847A - A kind of method soft or hard rock compound rock stratum analog material and soft or hard rock is prepared using the analog material - Google Patents
A kind of method soft or hard rock compound rock stratum analog material and soft or hard rock is prepared using the analog material Download PDFInfo
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- CN109095847A CN109095847A CN201810923225.2A CN201810923225A CN109095847A CN 109095847 A CN109095847 A CN 109095847A CN 201810923225 A CN201810923225 A CN 201810923225A CN 109095847 A CN109095847 A CN 109095847A
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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
- C04B28/02—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 hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00991—Uses not provided for elsewhere in C04B2111/00 for testing
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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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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
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- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The method that the present invention discloses a kind of compound rock stratum analog material of soft or hard rock and prepares soft or hard rock using the analog material, wherein, hard rock analog material includes the following component of weight proportion: cement: 80-100 parts, kaolin: 10-20 parts, quartz sand: 8-10 parts, Iron Ore Powder: 8-10 parts, blanc fixe: 8-10 parts and rubber powder: 1-2 parts；Softrock-like material includes the following component of weight proportion: cement: 50-70 parts, kaolin: 30-40 parts, quartz sand: 5-8 parts, Iron Ore Powder: 5-8 parts, blanc fixe: 5-8 parts and rubber powder: 2-4 parts.Mechanical strength variation range using the compound rock stratum of analog material preparation of the invention is big, can reach 10~50MPa, and mechanics parameter is easy to adjust, brittleness is relatively strong, stable mechanical property, can simulate the Composite rockmass of a variety of mechanical strengths.The analog material that the present invention uses is from a wealth of sources, low in cost, easy to process.
Description
Technical field
The present invention discloses a kind of compound rock stratum analog material and application method, especially a kind of compound rock stratum of soft or hard rock are similar
Material and the method for preparing soft or hard rock using the analog material, belong to ground, geomechanics model analog material field.
Background technique
In geotechnical engineering and Geological Engineering field, the soft or hard compound rock stratum of rock is a kind of Rock And Soil frequently encountered or geology
Body, physico-mechanical properties bring significant challenge to engineering construction.Since true compound formation sample is difficult to acquire, learn
Persons generally use the physico-mechanical properties for preparing model sample to study compound rock stratum, and the key of model sample preparation is
Choose suitable analog material.The characteristics of compound rock stratum is that the mechanical strength difference of soft rock and hard rock is obvious enough, while pressing layer
Shape feature is formed by stacking.
Current soft or hard rock compound rock stratum analog material field, the substantially method without special analog composite formation sample.It is existing
Have in technology, the preparation method of similar related analog material, such as: the patent application document of Publication No. CN104003655A is public
A kind of brittle rock analog material and preparation method thereof is opened, which can simulate the brittleness rock of different physical and mechanical parameters
Stone, but the mechanical strength range of the analog sample of this method production is only 0.3~2.5MPa, it is strong with the mechanics of true brittle rock
It is more significant to spend difference.The patent application document of Publication No. CN101407397A discloses a kind of modified similar material and its preparation
Method, using rubber powder as modified component, made model sample stable mechanical property can satisfy similar test and want for the invention
It asks, is suitble to do linear elastic model, but the invention does not suggest that the analog material production method of compound formation model sample.In addition,
The patent application document of Publication No. CN103130459A discloses a kind of high-compressibility scale model soil for simulating soft soil foundation；
The patent application document of Publication No. CN102955168A discloses a kind of seismic physical reservoir model and preparation method thereof and answers
With.Although above-mentioned patent all utilizes analog material, it is not directed to the preparation of compound formation model sample.
Summary of the invention
For asking for the analog material without the compound rock stratum preparation of associated analog in the prior art and method mentioned above
Topic, the present invention provide a kind of compound rock stratum analog material of soft or hard rock and the method for preparing soft or hard rock using the analog material, adopt
With special analog material formula, it can make that mechanical strength is high, mechanics parameter is easy to adjust, brittleness is relatively strong, stable mechanical property
Composite rockmass.
The technical solution used to solve the technical problems of the present invention is that: a kind of soft or hard compound rock stratum analog material of rock, it is similar
Material includes hard rock analog material and softrock-like material,
The hard rock analog material includes the following component of weight proportion: cement: 80-100 parts, kaolin: 10-20
Part, quartz sand: 8-10 parts, Iron Ore Powder: 8-10 parts, blanc fixe: 8-10 parts and rubber powder: 1-2 parts；
The softrock-like material includes the following component of weight proportion: cement: 50-70 parts, kaolin: 30-40 parts,
Quartz sand: 5-8 parts, Iron Ore Powder: 5-8 parts, blanc fixe: 5-8 parts and rubber powder: 2-4 parts.
A method of hard rock being prepared using such as above-mentioned analog material, this method includes the following steps:
(1), cement, kaolin, quartz sand, Iron Ore Powder, blanc fixe, rubber powder and water are weighed by weight ratio, wherein
Cement: 80-100 parts, kaolin: 10-20 parts, quartz sand: 8-10 parts, Iron Ore Powder: 8-10 parts, blanc fixe: 8-10 parts, rubber
Powder: 1-2 parts, water: 60-80 parts；
(2), cement, kaolin, quartz sand, Iron Ore Powder, blanc fixe and rubber powder are poured into blender, fully mixed
It is even, form solid mixture；
(3), solid mixture is persistently stirred, while slowly equably pouring into water in solid mixture, is fully mixed
It is even, form the mixture mixed；
(4), the mixture mixed is placed in mold, puts and vibrate on a vibration table, is vibrated using concrete vibrating stand,
Bubble in mixture is shaken out, time of vibration is 5~8 minutes；
(5), water conservation is placed 12~24 hours, it is made to complete initial set；
(6), the concrete curing chamber for being put into constant temperature and humidity maintains 14~28 days, and last demoulding forms.
A method of soft rock being prepared using such as above-mentioned analog material, this method includes the following steps:
(1), cement, kaolin, quartz sand, Iron Ore Powder, blanc fixe, rubber powder and water are weighed by weight ratio, wherein
Cement: 50-70 parts, kaolin: 30-40 parts, quartz sand: 5-8 parts, Iron Ore Powder: 5-8 parts, blanc fixe: 5-8 parts, rubber powder:
2-4 parts, water: 80-100 parts；
(2), cement, kaolin, quartz sand, Iron Ore Powder, blanc fixe and rubber powder are poured into blender, fully mixed
It is even, form solid mixture；
(3), it is persistently stirred material, while slowly equably pouring into water in solid mixture, is fully mixed uniformly, shape
At the mixture mixed；
(4), the mixture mixed is placed in mold, puts and vibrate on a vibration table, is vibrated using concrete vibrating stand,
Bubble in mixture is shaken out, time of vibration is 8~12 minutes；
(5), water conservation is placed 12~24 hours, it is made to complete initial set；
(6), the concrete curing chamber for being put into constant temperature and humidity maintains 14~28 days, and last demoulding forms.
A method of soft or hard rock being prepared using such as above-mentioned analog material, this method includes the following steps:
(1), cement, kaolin, quartz sand, Iron Ore Powder, blanc fixe, rubber powder and water are weighed by weight ratio, wherein
When preparing hard rock analog material, cement: 80-100 parts, kaolin: 10-20 parts, quartz sand: 8-10 parts, Iron Ore Powder:
8-10 parts, blanc fixe: 8-10 parts, rubber powder: 1-2 parts, water: 60-80 parts；
When preparing softrock-like material, cement: 50-70 parts, kaolin: 30-40 parts, quartz sand: 5-8 parts, Iron Ore Powder: 5-
8 parts, blanc fixe: 5-8 parts, rubber powder: 2-4 parts, water: 80-100 parts；
(2), respectively by cement, the kaolin, quartz in the analog material for preparing hard rock and the analog material for preparing soft rock
Sand, Iron Ore Powder, blanc fixe and rubber powder pour into blender, fully mix uniformly, are respectively formed hard rock solid mixture and soft
Rock solid mixture；
(3), hard rock solid mixture and soft rock solid mixture are persistently stirred respectively, while slowly equably distinguishing water
It pours into hard rock solid mixture and soft rock solid mixture, fully mixes uniformly, be respectively formed the hard rock mixture mixed
With soft rock mixture；
(4), the hard rock mixture mixed is placed in mold, puts and vibrate on a vibration table, utilizes concrete vibrating stand
Oscillation, the bubble in mixture is shaken out, and time of vibration is 5~8 minutes；Or the soft rock mixture mixed is placed in mold
In, it puts and vibrates on a vibration table, vibrated using concrete vibrating stand, the bubble in mixture is shaken out, time of vibration is 8~12
Minute；
(5), it places 30~60 minutes, hard rock or soft rock is made tentatively to reach initial set；
(6), the soft rock mixed or hard rock mixture are put in above hard rock or soft rock after initial set, are placed on shake table
Oscillation 2~3 times, every time vibrate 2~3 minutes, twice oscillation between interval time be 2~3 minutes, repeat step (6) once with
On, form the soft or hard rock complex of stratiform；
(7), water conservation is placed 12~24 hours, it is made to complete initial set；
(8), the concrete curing chamber for being put into constant temperature and humidity maintains 14~28 days, and last demoulding forms.
A kind of soft rock, hard rock or soft or hard rock using such as above-mentioned method preparation.
The technical scheme adopted by the invention to solve the technical problem further comprises:
The kaolin is the pure white kaolin of 4000 mesh of fineness or more.
The quartz sand is the quartz sand of fineness 10-200 mesh.
The iron ore powder fineness is 200-400 mesh.
The blanc fixe is 10-80 mesh blanc fixe.
The rubber powder is 40~80 mesh modified rubber powders, and rubber powder is handled through the NaOH solution that concentration is 1%~5%
It impregnates 45~90 minutes, is then rinsed with clear water, be put in ventilation natural air drying, processing is modified to it.
The beneficial effects of the present invention are: the mechanical strength of the compound rock stratum prepared using analog material of the invention changes model
It encloses greatly, can reach 10~50MPa, mechanics parameter is easy to adjust, brittleness is relatively strong, stable mechanical property, can simulate a variety of mechanics
The Composite rockmass of intensity.The analog material that the present invention uses is from a wealth of sources, low in cost, easy to process.
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
Detailed description of the invention
Fig. 1 is the stress-strain curve of present invention simulation hard rock；
Fig. 2 is the stress-strain curve of present invention simulation soft rock；
Fig. 3 is the stress-strain curve of analog composite rock stratum of the present invention.
Specific embodiment
The present embodiment is the preferred embodiment for the present invention, other its all principles and basic structure are identical or close as the present embodiment
As, within that scope of the present invention.
Heretofore described soft rock, hard rock are not the soft rocks defined on engineering discipline according to uniaxial compressive strength and hard
Rock, but just divided relatively according to intensity, in the present invention when the uniaxial compressive strength of hard rock is greater than one times of soft rock or more,
The two can be divided into soft rock, hard rock, the two is stacked by horizontal layer or inclination stratiform and becomes composite rock layer.
The present invention mainly protects a kind of analog material that can simulate the compound rock stratum of soft or hard rock, and analog material includes hard rock phase
Like material and softrock-like material,
The hard rock analog material includes the following component of weight proportion: cement: 80-100 parts, kaolin: 10-20
Part, quartz sand: 8-10 parts, Iron Ore Powder: 8-10 parts, blanc fixe: 8-10 parts and rubber powder: 1-2 parts；
The softrock-like material includes the following component of weight proportion: cement: 50-70 parts, kaolin: 30-40 parts,
Quartz sand: 5-8 parts, Iron Ore Powder: 5-8 parts, blanc fixe: 5-8 parts and rubber powder: 2-4 parts.
In the present embodiment, the cement used can be the commercially available portland cement with various different labels, cement grade
Generally 32.5,32.5R, 42.5,42.5R, 52.5,52.5R, 62.5 etc., R represent early-strength, and label is strength of cement index,
I.e. label is higher, and the strength of cement after condensation is also higher.Either hard rock or soft rock, cement additional amount is more, after condensation
Intensity it is also higher；
In the present embodiment, for the kaolin used for pure white kaolin more than 4000 mesh of fineness, kaolin is soft component,
Kaolin is added, the sample strength after making condensation is lower；
In the present embodiment, for the quartz sand used for the quartz sand of fineness 10-200 mesh, specific mesh number can be according to simulated rock
Stone type and choose, since kaolinic particle is very thin, the sample of it and cement production systD can only simulate the rock of mud stone one kind, because
This quartz sand can be used as coarse aggregate to treat, and can simulate siltstone or even packsand sample, and mesh number is higher, the quartz represented
Particle is thinner.It, must be using the quartz sand of 10 mesh (grain diameter of corresponding 2mm) if wanting to simulate packsand.10-200 mesh is corresponding
Be siltstone (200 mesh are 0.075mm, the exactly boundary of siltstone partial size (2-0.075mm)), therefore, how mesh number is selected
It selects and depends on rock type to be simulated；
In the present embodiment, the Iron Ore Powder used is magnetite concentrate powder, and iron ore powder fineness is 200-400 mesh, Iron Ore Powder
It is added to improve the severe of sample namely the density of sample, additional amount is more, and the severe of sample is higher；
In the present embodiment, for the blanc fixe used for 10-80 mesh blanc fixe, blanc fixe is added to raising sample
The severe of product namely the density of sample, additional amount is more, and the severe of sample is higher；
In the present embodiment, for the rubber powder used for 40~80 mesh modified rubber powders, rubber powder is 1%~5% through concentration
NaOH solution processing is impregnated about 45~90 minutes, is then rinsed with clear water, is put in ventilation natural air drying, place is modified to it
It manages, in the present embodiment, the clear water used is city tap-water or pure thorough underground water.
The present invention protects a kind of method for preparing hard rock using the analog material simultaneously, and this method includes the following steps:
(1), cement, kaolin, quartz sand, Iron Ore Powder, blanc fixe, rubber powder and water are weighed by weight ratio, wherein
Cement: 80-100 parts, kaolin: 10-20 parts, quartz sand: 8-10 parts, Iron Ore Powder: 8-10 parts, blanc fixe: 8-10 parts, rubber
Powder: 1-2 parts, water: 60-80 parts；
(2), cement, kaolin, quartz sand, Iron Ore Powder, blanc fixe and rubber powder are poured into blender, fully mixed
It is even, solid mixture is formed, in the present embodiment, mixing time is 5-8 minutes；
(3), solid mixture is persistently stirred, while slowly equably pouring into water in solid mixture, is fully mixed
It is even, it forms the mixture mixed, in the present embodiment, whole water is even added to solid mixture with 3~6 minutes
In, then persistently stir 8~12 minutes.
(4), the mixture mixed is placed in mold, puts and vibrate on a vibration table, is vibrated using concrete vibrating stand,
Bubble in mixture is shaken out, time of vibration is 5~8 minutes, in vibration processes, specific to need by overflowing in observation mixture
How much bubble out determines duration of oscillation, and usually to overflow when being only no more than a bubble in 30 seconds, as oscillation is completed,
It the normal vibration time 5~8 minutes can meet demand；
(5), then (water conservation refers to that sample is constantly in the state being immersed in water, and guarantees that sample is unable to water shortage appearance for water conservation
Crackle generallys use the mode for periodically spraying or impregnating) it places 12~24 hours, so that it is completed initial set；
(6), the concrete for being put into constant temperature and humidity (in the present embodiment, temperature is 16-24 degree, 95% or more relative humidity) is supported
It protects room to maintain 14~28 days, last demoulding, that is, plastic.
For the hard rock load-deformation curve of simulation as shown in Figure 1, compared with the mechanical property of true hard rock, mechanical strength is full
Sufficient test requirements document.
The present invention protects a kind of method for preparing soft rock using the analog material simultaneously, and this method includes the following steps:
(1), cement, kaolin, quartz sand, Iron Ore Powder, blanc fixe, rubber powder and water are weighed by weight ratio, wherein
Cement: 50-70 parts, kaolin: 30-40 parts, quartz sand: 5-8 parts, Iron Ore Powder: 5-8 parts, blanc fixe: 5-8 parts, rubber powder:
2-4 parts, water: 80-100 parts；
(2), cement, kaolin, quartz sand, Iron Ore Powder, blanc fixe and rubber powder are poured into blender, fully mixed
Even, mixing time is 6-10 minutes, forms solid mixture；
(3), it is persistently stirred material, while slowly equably pouring into water in solid mixture, is fully mixed uniformly, shape
At the mixture mixed, in the present embodiment, whole water is even added in solid mixture with 4~8 minutes, so
It persistently stirs 10~15 minutes afterwards.
(4), the mixture mixed is placed in mold, puts and vibrate on a vibration table, is vibrated using concrete vibrating stand,
Bubble in mixture is shaken out, time of vibration is 8~12 minutes, specific to need the bubble by overflowing in observation mixture more
Few to determine duration of oscillation, usually to overflow when being only no more than a bubble in 30 seconds, as oscillation is completed, when normal vibration
Between 8~12 minutes can meet demand；
(5), then (water conservation refers to that sample is constantly in the state being immersed in water, and guarantees that sample is unable to water shortage appearance for water conservation
Crackle generallys use the mode for periodically spraying or impregnating) it places 12~24 hours, so that it is completed initial set；
(6), the concrete for being put into constant temperature and humidity (in the present embodiment, temperature is 16-24 degree, 95% or more relative humidity) is supported
It protects room to maintain 14~28 days, last demoulding, that is, plastic.
For the soft rock load-deformation curve of simulation as shown in Fig. 2, compared with the mechanical property of true soft rock, mechanical strength is full
Sufficient test requirements document.
The present invention protects a kind of method for preparing the compound rock stratum of soft or hard rock using the analog material simultaneously, under this method includes
State step:
(1), cement, kaolin, quartz sand, Iron Ore Powder, blanc fixe, rubber powder and water are weighed by weight ratio, wherein
When preparing hard rock analog material, cement: 80-100 parts, kaolin: 10-20 parts, quartz sand: 8-10 parts, Iron Ore Powder:
8-10 parts, blanc fixe: 8-10 parts, rubber powder: 1-2 parts, water: 60-80 parts；
When preparing softrock-like material, cement: 50-70 parts, kaolin: 30-40 parts, quartz sand: 5-8 parts, Iron Ore Powder: 5-
8 parts, blanc fixe: 5-8 parts, rubber powder: 2-4 parts, water: 80-100 parts；
(2), respectively by cement, the kaolin, quartz in the analog material for preparing hard rock and the analog material for preparing soft rock
Sand, Iron Ore Powder, blanc fixe and rubber powder pour into blender, fully mix uniformly, are respectively formed hard rock solid mixture and soft
Rock solid mixture, when mixing, the mixing time of hard rock solid mixture is 5-8 minutes, and soft rock solid mixture stirs
Mixing the time is 6-10 minutes；
(3), hard rock solid mixture and soft rock solid mixture are persistently stirred respectively, while slowly equably distinguishing water
It pours into hard rock solid mixture and soft rock solid mixture, fully mixes uniformly, be respectively formed the hard rock mixture mixed
With soft rock mixture, wherein whole water is even added to hard rock solid with 3~6 minutes and mixed by hard rock solid mixture
It closes in material, then persistently stirs 8~12 minutes；Whole water is even added to by soft rock solid mixture with 4~8 minutes
In soft rock solid mixture, then persistently stir 10~15 minutes.
(4), the hard rock mixture mixed is placed in mold, puts and vibrate on a vibration table, utilizes concrete vibrating stand
Oscillation, the bubble in mixture is shaken out, and time of vibration is 5~8 minutes, the specific gas needed by overflowing in observation mixture
Bubble is how many to determine duration of oscillation, and usually to overflow when being only no more than a bubble in 30 seconds, as oscillation is completed, normal to shake
Dynamic 5~8 minutes time can meet demand；Or first the soft rock mixture mixed can also be placed in mold, it is placed on vibration
It vibrates on platform, is vibrated using concrete vibrating stand, the bubble in mixture is shaken out, time of vibration is 8~12 minutes, is specifically needed
How much duration of oscillation is determined by the bubble that overflows in observation mixture, usually with when being only no more than a gas in 30 seconds
Bubble overflows, and as oscillation is completed, the normal vibration time 8~12 minutes can meet demand；
(5), it places 30~60 minutes, hard rock or soft rock is made tentatively to reach initial set, it is mutual to avoid two kinds of rock mixtures
Mixing infiltration；
(6), the soft rock mixed or hard rock mixture are lightly put in the hard rock after initial set or soft rock (if first layer
For hard rock, then the second layer is soft rock；If first layer is soft rock, the second layer is hard rock) above, it is placed on shake table and vibrates 2
It~3 times, vibrates every time 2~3 minutes, interval time is 2~3 minutes between oscillation twice.If preparing the soft or hard rock of multilayer to combine
Body, then repeatedly step (6) repeatedly, forms the soft or hard rock complex of stratiform；
(7), then (water conservation refers to that sample is constantly in the state being immersed in water, and guarantees that sample is unable to water shortage appearance for water conservation
Crackle generallys use the mode for periodically spraying or impregnating) it places 12 hours, so that it is completed initial set；
(8), the concrete for being put into constant temperature and humidity (in the present embodiment, temperature is 16-24 degree, 95% or more relative humidity) is supported
It protects room to maintain 14~28 days, last demoulding, that is, plastic, obtains the compound rock stratum phase of the soft or hard rock after maintenance molding, demoulding
Like material model.
The hard rock load-deformation curve of simulation is as shown in figure 3, compared with the mechanical property of true soft or hard rock, mechanical strength
Meet test requirements document.
The present invention will be made with several specific examples and be illustrated below.
Embodiment one: in the present embodiment, hard rock analog material includes the following component of weight proportion: cement: 80 parts, kaolinite
Soil: 20 parts, quartz sand: 8 parts, Iron Ore Powder: 10 parts, blanc fixe: 8 parts and rubber powder: 2 parts；Softrock-like material includes weight
Match following component: cement: 70 parts, kaolin: 30 parts, quartz sand: 5 parts, Iron Ore Powder: 8 parts, blanc fixe: 5 parts and rubber
Rubber powder: 4 parts.
Hard rock part mechanical strength in soft or hard composite rock made of the material mixture ratio used in the present embodiment can reach
25MPa, soft rock part mechanical strength can reach 18MPa, and final products brittleness is relatively strong, stable mechanical property.
Embodiment two: in the present embodiment, hard rock analog material includes the following component of weight proportion: cement: 85 parts, kaolinite
Soil: 18 parts, quartz sand: 8 parts, Iron Ore Powder: 10 parts, blanc fixe: 8 parts and rubber powder: 2 parts；Softrock-like material includes weight
Match following component: cement: 65 parts, kaolin: 33 parts, quartz sand: 6 parts, Iron Ore Powder: 7 parts, blanc fixe: 6 parts and rubber
Rubber powder: 4 parts.
Hard rock part mechanical strength in soft or hard composite rock made of the material mixture ratio used in the present embodiment can reach
30MPa, soft rock part mechanical strength can reach 15MPa, and final products brittleness is relatively strong, stable mechanical property.
Embodiment three: in the present embodiment, hard rock analog material includes the following component of weight proportion: cement: 90 parts, kaolinite
Soil: 16 parts, quartz sand: 9 parts, Iron Ore Powder: 9 parts, blanc fixe: 9 parts and rubber powder: 2 parts；Softrock-like material includes that weight is matched
Than following component: cement: 60 parts, kaolin: 35 parts, quartz sand: 7 parts, Iron Ore Powder: 7 parts, blanc fixe: 7 parts and rubber
Powder: 3 parts.
Hard rock part mechanical strength in soft or hard composite rock made of the material mixture ratio used in the present embodiment can reach
35MPa, soft rock part mechanical strength can reach 12MPa, and final products brittleness is relatively strong, stable mechanical property.
Example IV: in the present embodiment, hard rock analog material includes the following component of weight proportion: cement: 95 parts, kaolinite
Soil: 14 parts, quartz sand: 10 parts, Iron Ore Powder: 8 parts, blanc fixe: 10 parts and rubber powder: 1 part；Softrock-like material includes weight
Match following component: cement: 55 parts, kaolin: 37 parts, quartz sand: 8 parts, Iron Ore Powder: 6 parts, blanc fixe: 7 parts and rubber
Rubber powder: 2 parts.
Hard rock part mechanical strength in soft or hard composite rock made of the material mixture ratio used in the present embodiment can reach
49MPa, soft rock part mechanical strength can reach 10MPa, and final products brittleness is relatively strong, stable mechanical property.
Embodiment five: in the present embodiment, hard rock analog material includes the following component of weight proportion: cement: 100 parts, height
Ridge soil: 10 parts, quartz sand: 10 parts, Iron Ore Powder: 8 parts, blanc fixe: 10 parts and rubber powder: 1 part；Softrock-like material includes weight
Amount matches following component: cement: 50 parts, kaolin: 40 parts, quartz sand: 8 parts, Iron Ore Powder: 5 parts, blanc fixe: 8 parts and
Rubber powder: 2 parts.
Hard rock part mechanical strength in soft or hard composite rock made of the material mixture ratio used in the present embodiment can reach
50MPa, soft rock part mechanical strength can reach 10MPa, and final products brittleness is relatively strong, stable mechanical property.
The mechanical strength variation range of the compound rock stratum prepared using analog material of the invention is big, it can reach 10~
50MPa, mechanics parameter is easy to adjust, brittleness is relatively strong, stable mechanical property, can simulate the Composite rockmass of a variety of mechanical strengths.
The analog material that the present invention uses is from a wealth of sources, low in cost, easy to process.
Claims (10)
1. a kind of compound rock stratum analog material of soft or hard rock, it is characterized in that: the analog material includes hard rock analog material and soft
Rock analog material,
The hard rock analog material includes the following component of weight proportion: cement: 80-100 parts, kaolin: 10-20 parts, stone
Sand: 8-10 parts, Iron Ore Powder: 8-10 parts, blanc fixe: 8-10 parts and rubber powder: 1-2 parts；
The softrock-like material includes the following component of weight proportion: cement: 50-70 parts, kaolin: 30-40 parts, quartz
Sand: 5-8 parts, Iron Ore Powder: 5-8 parts, blanc fixe: 5-8 parts and rubber powder: 2-4 parts.
2. the compound rock stratum analog material of soft or hard rock according to claim 1, it is characterized in that: the kaolin is fineness
Pure white kaolin more than 4000 mesh.
3. the compound rock stratum analog material of soft or hard rock according to claim 1, it is characterized in that: the quartz sand is fineness
The quartz sand of 10-200 mesh.
4. the compound rock stratum analog material of soft or hard rock according to claim 1, it is characterized in that: the iron ore powder fineness is
200-400 mesh.
5. the compound rock stratum analog material of soft or hard rock according to claim 1, it is characterized in that: the blanc fixe is 10-
80 mesh blanc fixes.
6. the compound rock stratum analog material of soft or hard rock according to claim 1, it is characterized in that: the rubber powder is 40~80
Mesh modified rubber powder, the NaOH solution processing that rubber powder is 1%~5% through concentration are impregnated 45~90 minutes, are then rushed with clear water
It washes, is put in ventilation natural air drying, processing is modified to it.
7. a kind of method that the analog material using as described in any one of claim 1 to 6 prepares hard rock, it is characterized in that:
The method includes the following steps:
(1), cement, kaolin, quartz sand, Iron Ore Powder, blanc fixe, rubber powder and water are weighed by weight ratio, wherein water
Mud: 80-100 parts, kaolin: 10-20 parts, quartz sand: 8-10 parts, Iron Ore Powder: 8-10 parts, blanc fixe: 8-10 parts, rubber
Powder: 1-2 parts, water: 60-80 parts；
(2), cement, kaolin, quartz sand, Iron Ore Powder, blanc fixe and rubber powder are poured into blender, fully mixed uniformly,
Form solid mixture；
(3), solid mixture is persistently stirred, while slowly equably pouring into water in solid mixture, is fully mixed uniformly, shape
At the mixture mixed；
(4), the mixture mixed is placed in mold, puts and vibrate on a vibration table, vibrated using concrete vibrating stand, will be mixed
The bubble closed in material shakes out, and time of vibration is 5~8 minutes；
(5), water conservation is placed 12~24 hours, it is made to complete initial set；
(6), the concrete curing chamber for being put into constant temperature and humidity maintains 14~28 days, and last demoulding forms.
8. a kind of method that the analog material using as described in any one of claim 1 to 6 prepares soft rock, it is characterized in that:
The method includes the following steps:
(1), cement, kaolin, quartz sand, Iron Ore Powder, blanc fixe, rubber powder and water are weighed by weight ratio, wherein water
Mud: 50-70 parts, kaolin: 30-40 parts, quartz sand: 5-8 parts, Iron Ore Powder: 5-8 parts, blanc fixe: 5-8 parts, rubber powder: 2-4
Part, water: 80-100 parts；
(2), cement, kaolin, quartz sand, Iron Ore Powder, blanc fixe and rubber powder are poured into blender, fully mixed uniformly,
Form solid mixture；
(3), it is persistently stirred material, while slowly equably pouring into water in solid mixture, is fully mixed uniformly, formation is mixed
The mixture got togather；
(4), the mixture mixed is placed in mold, puts and vibrate on a vibration table, vibrated using concrete vibrating stand, will be mixed
The bubble closed in material shakes out, and time of vibration is 8~12 minutes；
(5), water conservation is placed 12~24 hours, it is made to complete initial set；
(6), the concrete curing chamber for being put into constant temperature and humidity maintains 14~28 days, and last demoulding forms.
9. a kind of method that the analog material using as described in any one of claim 1 to 6 prepares soft or hard rock, feature
Be: the method includes the following steps:
(1), cement, kaolin, quartz sand, Iron Ore Powder, blanc fixe, rubber powder and water are weighed by weight ratio, wherein
When preparing hard rock analog material, cement: 80-100 parts, kaolin: 10-20 parts, quartz sand: 8-10 parts, Iron Ore Powder: 8-10
Part, blanc fixe: 8-10 parts, rubber powder: 1-2 parts, water: 60-80 parts；
When preparing softrock-like material, cement: 50-70 parts, kaolin: 30-40 parts, quartz sand: 5-8 parts, Iron Ore Powder: 5-8 parts,
Blanc fixe: 5-8 parts, rubber powder: 2-4 parts, water: 80-100 parts；
(2), respectively by cement, the kaolin, quartz sand, iron in the analog material for preparing hard rock and the analog material for preparing soft rock
Miberal powder, blanc fixe and rubber powder pour into blender, fully mix uniformly, are respectively formed hard rock solid mixture and soft rock solid
Mixture；
(3), hard rock solid mixture and soft rock solid mixture are persistently stirred respectively, while slowly equably pouring into water respectively
It in hard rock solid mixture and soft rock solid mixture, fully mixes uniformly, is respectively formed the hard rock mixture mixed and soft
Rock mixture；
(4), the hard rock mixture mixed is placed in mold, puts and vibrate on a vibration table, is vibrated using concrete vibrating stand,
Bubble in mixture is shaken out, time of vibration is 5~8 minutes；Or the soft rock mixture mixed is placed in mold, it is placed on
It vibrates on shake table, is vibrated using concrete vibrating stand, the bubble in mixture is shaken out, time of vibration is 8~12 minutes；
(5), it places 30~60 minutes, hard rock or soft rock is made tentatively to reach initial set；
(6), the soft rock mixed or hard rock mixture are put in above hard rock or soft rock after initial set, are placed on shake table and vibrate
It 2~3 times, vibrates every time 2~3 minutes, interval time is 2~3 minutes between oscillation twice, repeats step (6) more than once, shape
At stacked soft or hard rock complex；
(7), it places 12~24 hours, it is made to complete initial set；
(8), the concrete curing chamber for being put into constant temperature and humidity maintains 14~28 days, and last demoulding forms.
10. a kind of soft rock, hard rock or compound rock stratum of soft or hard rock using the method preparation as described in claim 7 or 8 or 9.
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| CN111018421A (en) * | 2019-12-23 | 2020-04-17 | 山东大学 | Ultra-low permeability airtight rock stratum similar material and preparation method and application thereof |
| CN113189131A (en) * | 2021-04-26 | 2021-07-30 | 三峡大学 | Test model and method for simulating deformation and damage of rock mass structure under local rock mass degradation condition |
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