CN103183495B - Fault analog simulation material used for fluid-solid coupling model test and preparation method thereof - Google Patents
Fault analog simulation material used for fluid-solid coupling model test and preparation method thereof Download PDFInfo
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- CN103183495B CN103183495B CN201310104498.1A CN201310104498A CN103183495B CN 103183495 B CN103183495 B CN 103183495B CN 201310104498 A CN201310104498 A CN 201310104498A CN 103183495 B CN103183495 B CN 103183495B
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Abstract
The invention discloses a fault analog simulation material used for a fluid-solid coupling model test, which comprises components in parts by weight as follows: 1 part of quartz sand, 0.05-0.25 part of talcum powder, 0.05-0.15 part of gypsum powder, 0.08-0.2 part of Vaseline and 0.1-0.2 part of water. The material adopts gypsum as a cementing agent, so as to achieve simulation for fault fluid-solid coupling characteristics; the talcum powder and the quartz sand are adopted as conditioning agents to regulate the weight of the material; and the Vaseline is adopted as a water resistant agent to regulate permeability of the material, simultaneously adopted as a plastic cementing agent of the material, and used for simulating the fault fluid-solid coupling characteristics under different permeability conditions, and real-time comparison with surrounding rock fluid-solid coupling characteristics in the same experiment is achieved. The fault analog simulation material in the fluid-solid coupling model test disclosed by the invention can regulate the strength and the permeability of the material within a larger range, and simulate various types of faults at various levels of intensity.
Description
Technical field
The present invention relates to a kind of tomography similar materials for fluid-wall interaction model test and preparation method thereof, belong to materials science field.
Background technology
Current many scholars carry out the optimization of Study of The Underground engineering design and construction method by a large amount of geomechanical model tests, carry out the exploration of construction process mechanics rule.But present underground project model test also exists many obvious deficiencies, especially in the research and development of analog material, in the past great majority focused on the similar of analog physical characteristic aspect, characteristic in the water seldom considering material.Although there is only a few to consider fluid-body interaction, but often just adopt a kind of analog material of country rock in model test, more homogeneous, be difficult to the seepage flow change of reacting under complex geological condition, as containing country rock when tomography and the infiltration flow of tomography and the difference of some other Stress displacement.More common to the research and development of country rock analog material, but the proportioning of tomography analog material is but very rare.
Summary of the invention
For above-mentioned prior art, for overcoming the deficiencies in the prior art, the invention provides a kind of tomography similar materials for fluid-wall interaction model test, this kind of material adopts gypsum as cementing agent, realizes the simulation to tomography fluid-wall interaction characteristic; Adopt talcum powder and quartz sand as conditioning agent, regulate material severe; Adopt vaseline as waterproofing agent, regulate the permeability of material, simultaneously also as the plasticity cementing agent of material, for simulating the fluid-wall interaction characteristic of the tomography under different permeability part, realize in same experiment with the real time contrast of country rock fluid-wall interaction characteristic, present invention also offers its preparation method.
The present invention is achieved by the following technical solutions:
For a tomography similar materials for fluid-wall interaction model test, be made up of the component of following weight portion: quartz sand 1 part, talcum powder 0.05 ~ 0.25 part, land plaster 0.05 ~ 0.15 part, 0.08 ~ 0.2 part, vaseline, 0.1 ~ 0.2 part, water.
Preferably, be made up of the component of following weight portion: quartz sand 1 part, talcum powder 0.07 part, land plaster 0.1 part, 0.16 part, vaseline, 0.15 part, water.
The particle diameter of described quartz sand is less than 7mm, and grating is even.
The fineness of described land plaster is 650 orders
Described talcous fineness is 1200 orders.
Described mixing water is common drinking water.
Described vaseline is the medical grade vaseline of white non-toxic.
The preparation method of the above-mentioned fluid-wall interaction analog material for model test, comprises the following steps:
1) quartz sand, land plaster, talcum powder and vaseline is taken in proportion;
2) quartz sand, land plaster, talcum powder three kinds of fine materials are mixed and stir;
3) add load weighted mixing water, fully stir;
4) vaseline is heated to 45 DEG C ~ 60 DEG C, makes it melt for liquid state;
5) liquid vaseline is mixed with step 3) resulting materials, and fully stir;
6) cool 3 ~ 7min under room temperature, obtain the fluid-wall interaction analog material for model test.
Of the present invention for simulating tomography analog material in fluid-wall interaction model test, adopt gypsum as cementing agent, mix vaseline simultaneously and be used as plasticity cementing agent, both avoid material and meet water softening disintegration rapidly, material intensity reduction permeability in seepage flow evolution can be realized again simultaneously and strengthen this purpose, better realize the simulation of fluid-wall interaction characteristic; Adopt vaseline to regulate the water reason characteristic of material, ensure that the water reason characteristic of material meets requirement of experiment; Adopt quartz sand and talcum powder as aggregate, be also conditioning agent simultaneously, and regulate severe and intensity and the elastic modelling quantity etc. of material, material main parameters ranges is as shown in table 1, and the stress-strain diagram under uniaxial compressive condition as shown in Figure 1.
Table 1
Analog material for simulating tomography in fluid-wall interaction model test of the present invention, have studied the technical scheme and the preparation method that simulate the analog material of tomography in available model test, fill up the blank for the material of fault simulation in fluid-wall interaction model experiment, both solve the problem that water softening disintegration rapidly met by material, simulate the change that the strength of materials and permeability develop with seepage flow simultaneously.Achieve fill out tomography and country rock two kinds of analog materials simultaneously in same model experiment, by the real time contrast of bi-material, the situation of better model engineering reality, makes the experimental result drawn better go to instruct practical implementation.
The present invention selects quartz sand, talcum powder, land plaster, vaseline as constituent, wherein, land plaster is as main cementing agent, and the requirement of its mechanical property and model experiment material relatively, meet water caking property good, deduction in time simultaneously can occur to change slowly; Talcum powder, as conditioning agent, mainly regulates the severe of analog material, makes analog material meet the requirement of the principle of similitude; Vaseline is as plasticity cementing agent and waterproofing agent, mainly regulate the permeability of analog material and intensity and elastic modelling quantity, along with the increase of content, it is contrary with gypsum to the regulating action of intensity and elastic modelling quantity, this ensure that Mechanical Properties of Materials can Effective Regulation; By regulating the ratio of vaseline and land plaster, mechanical characteristic and the water reason characteristic of material can be changed, make the range of application of this fluid-wall interaction material become wide.In addition, regulate the proportion of talcum powder and quartz sand, internal friction angle and the cohesive strength of material can be regulated.
Simulate the analog material of tomography in fluid-wall interaction model test of the present invention, have the following advantages:
1, can realize analog material and softening disintegration can not occur rapidly under the effect of water, but change gradually along with the deduction mechanics of time and seepage characteristic, simulation tomography material is in the fluid-wall interaction characteristic of seepage effect;
2, by regulating material mixture ratio, under the prerequisite of bulk property not affecting material, water rationality index and mechanical performance index can be regulated and controled, for the tomography of simulating different classes of, different infiltration coefficient provides possibility;
3, intensity and the permeability of material can be regulated in a big way, all kinds of tomographies of intensity at different levels can be simulated.
Accompanying drawing explanation
Fig. 1: the stress-strain curve diagram of sample under uniaxial compressive condition of material.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is further illustrated.
The present invention's land plaster fineness used is 650 orders; Quartz sand particle size is less than 7mm, and grating is even; Talcous fineness is 1200 orders; Vaseline is the medical grade vaseline of white non-toxic.
Embodiment 1 is for the preparation of the analog material of simulating tomography in fluid-wall interaction model test
Raw material consists of: quartz sand 1 part, talcum powder 0.12 part, land plaster 0.08 part, 0.09 part, vaseline, 0.13 part, water.
Preparation method is:
1) strictly quartz sand, land plaster, talcum powder, vaseline and mixing water is taken in proportion;
2) quartz sand, land plaster, talcum powder three kinds of fine materials are mixed and stir;
3) add load weighted mixing water, fully stir;
4) vaseline is heated to 55 DEG C, makes it melt for liquid state;
5) liquid vaseline is mixed with step 3) resulting materials, and fully stir;
6) cool 5min under room temperature, to obtain final product.
The ess-strain of resulting materials under uniaxial compressive condition as shown in Figure 1, has reacted test specimen increase along with load in loading procedure, the change procedure of strain, has met the requirement of condition of similarity to analog material.
Embodiment 2 is for the preparation of the analog material of simulating tomography in fluid-wall interaction model test
Raw material consists of: quartz sand 1 part, talcum powder 0.18 part, land plaster 0.07 part, 0.1 part, vaseline, 0.12 part, water.
Preparation method is:
1) strictly quartz sand, land plaster, talcum powder, vaseline and mixing water is taken in proportion;
2) quartz sand, land plaster, talcum powder three kinds of fine materials are mixed and stir;
3) add load weighted mixing water, fully stir;
4) vaseline is heated to 55 DEG C, makes it melt for liquid state;
5) liquid vaseline is mixed with step 3) resulting materials, and fully stir;
6) cool 5min under room temperature, to obtain final product.
Embodiment 3 is for the preparation of the analog material of simulating tomography in fluid-wall interaction model test
Raw material consists of: quartz sand 1 part, talcum powder 0.08 part, land plaster 0.12 part, 0.13 part, vaseline, 0.1 part, water.Preparation method is:
1) strictly quartz sand, land plaster, talcum powder, vaseline and mixing water is taken in proportion;
2) quartz sand, land plaster, talcum powder three kinds of fine materials are mixed and stir;
3) add load weighted mixing water, fully stir;
4) vaseline is heated to 55 DEG C, makes it melt for liquid state;
5) liquid vaseline is mixed with step 3) resulting materials, and fully stir;
6) cool 5min under room temperature, to obtain final product.
Claims (7)
1. the tomography similar materials for fluid-wall interaction model test, it is characterized in that: be made up of the component of following weight portion: quartz sand 1 part, talcum powder 0.05 ~ 0.25 part, land plaster 0.05 ~ 0.15 part, 0.08 ~ 0.2 part, vaseline, mixing water 0.1 ~ 0.2 part.
2. a kind of tomography similar materials for fluid-wall interaction model test according to claim 1, it is characterized in that: be made up of the component of following weight portion: quartz sand 1 part, talcum powder 0.07 part, land plaster 0.1 part, 0.16 part, vaseline, mixing water 0.15 part.
3. a kind of tomography similar materials for fluid-wall interaction model test according to claim 1, is characterized in that: the particle diameter of described quartz sand is less than 7mm, and grating is even.
4. a kind of tomography similar materials for fluid-wall interaction model test according to claim 1, is characterized in that: the fineness of described land plaster is 650 orders.
5. a kind of tomography similar materials for fluid-wall interaction model test according to claim 1, is characterized in that: described talcous fineness is 1200 orders.
6. a kind of tomography similar materials for fluid-wall interaction model test according to claim 1, is characterized in that: described vaseline is the medical grade vaseline of white non-toxic.
7. the preparation method of a kind of tomography similar materials for fluid-wall interaction model test according to any one of claim 1 ~ 6, is characterized in that: comprise the following steps:
1) quartz sand, land plaster, talcum powder, vaseline and mixing water is taken in proportion;
2) quartz sand, land plaster, talcum powder three kinds of fine materials are mixed and stir;
3) add load weighted mixing water, fully stir;
4) vaseline is heated to 45 DEG C ~ 60 DEG C, makes it melt for liquid state;
5) liquid vaseline is mixed with step 3) resulting materials, and fully stir;
6) cool 3 ~ 7min under room temperature, obtain the fluid-wall interaction analog material for model test.
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| CN107884238A (en) * | 2016-09-29 | 2018-04-06 | 中国石油化工股份有限公司 | A kind of analog composite material of mud stone and preparation method thereof |
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| CN104655544B (en) * | 2013-07-29 | 2017-04-05 | 山东科技大学 | A kind of measurement apparatus and its measuring method of similar simulation material osmotic coefficient |
| CN103454127B (en) * | 2013-07-29 | 2015-05-06 | 山东科技大学 | Similar material for small and medium solid-fluid coupled model test and preparation method thereof |
| CN104003684A (en) * | 2014-05-28 | 2014-08-27 | 杨成 | Collapsible loess model test similar material |
| CN104891928B (en) * | 2015-05-18 | 2017-08-01 | 山东大学 | A kind of analog material for mud model test of being dashed forward for tomography and preparation method thereof |
| CN105110746B (en) * | 2015-07-22 | 2017-04-05 | 山东科技大学 | For simulating analog material, the method for preparation and use of coal mining construction gushing water |
| CN105906250B (en) * | 2016-04-03 | 2017-12-01 | 西安科技大学 | A kind of preparation method of physical simulation experiment analog material |
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| CN109704708B (en) * | 2019-01-16 | 2021-07-27 | 山东理工大学 | Fracture zone similar material for solid-fluid coupling simulation experiment and preparation method thereof |
| CN110333321A (en) * | 2019-07-29 | 2019-10-15 | 辽宁工程技术大学 | A kind of fluid-wall interaction model test analog material and preparation method thereof |
| CN112028555B (en) * | 2020-09-14 | 2022-10-18 | 济南海马机械设计有限公司 | Fluid-solid coupling similar material and preparation method thereof |
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| CN101625354A (en) * | 2009-08-05 | 2010-01-13 | 山东大学 | Similar material for fluid-solid coupling model test |
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| CN101625354A (en) * | 2009-08-05 | 2010-01-13 | 山东大学 | Similar material for fluid-solid coupling model test |
| CN102557551A (en) * | 2011-12-19 | 2012-07-11 | 山东大学 | Fluid-solid coupling similar material for model test and preparation method for material |
Non-Patent Citations (1)
| Title |
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| "新型地质力学模型试验相似材料的研制";王汉鹏等;《岩石力学与工程学报》;20060930;第25卷(第9期);1842-1847 * |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107884238A (en) * | 2016-09-29 | 2018-04-06 | 中国石油化工股份有限公司 | A kind of analog composite material of mud stone and preparation method thereof |
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