CN104568544A - Method for preparing inner air bubble-containing rock sample in rock sample visualization experiment - Google Patents
Method for preparing inner air bubble-containing rock sample in rock sample visualization experiment Download PDFInfo
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Abstract
The invention discloses a method for preparing an inner air bubble-containing rock sample in a rock sample visualization experiment. The method comprises the following steps: (1) expanding a mold; (2) placing a wax block; (3) weighing a K39 resin and adding the resin into a container; (4) preparing a composite hardening agent; (5) adding an accelerant into the K39 resin for preparing K glue; (6) adding the composite hardening agent prepared in the step (4) into the K glue; (7) pouring hot water into the container, uniformly and slowly stirring until the K glue is clarified; (8) uniformly and slowly stirring, and adding an antifoaming agent into the uniformly mixed K glue prepared in the step (7); (9) slowly pouring the K39 resin mixed solution into the mold in which the wax block is placed in the step (2) along the wall of the mold; and (10) taking out the wax block. According to the method for preparing the inner air bubble-containing rock sample in the rock sample visualization experiment provided by the invention, the problem that air bubbles cannot be produced inside the rock sample prepared in the conventional method can be solved.
Description
Technical field
The present invention relates to and relate to Geotechnical Engineering field, especially a kind ofly to prepare in rock sample visualized experiment the inner method containing air pocket rock sample.
Background technology
At present, in rock sample visualized experiment, rock sample processed is by injecting K39 resin material in fixed mould, makes its coagulation forming gained.Test specimen water white transparency after shaping, visuality is very good, and by regulating assistant to change the performances such as the deformation performance of test specimen and Poisson ratio, can simulate the various rocks with different distortion parameter.But the continuous tight of transparent test specimen obtained, leaving no air bubbles inside, the test specimen of complete homogeneous, and in reality there is hole and the defect of some and different size in protolith inside, as pyrogenic rock, sandstone etc.When in rock containing comparatively macropore and defect time, can to the deformation performance generation considerable influence of rock, this impact can not be left in the basket.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind ofly to prepare in rock sample visualized experiment the inner method containing air pocket rock sample, the inner problem that cannot produce air pocket of rock sample prepared by existing method can be solved, can be formed in protolith rock sample and form, size, the identical air pocket in position in protolith, thus the internal environment containing air pocket rock sample can be simulated better.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind ofly to prepare in rock sample visualized experiment the inner method containing air pocket rock sample, and the method comprises the following steps:
1) open up mould: get need simulate containing air pocket protolith rock sample, the wax stone after softening is bumped into the inside of air pocket contained by protolith rock sample, takes out after wax stone solidifies completely;
2) wax stone is placed: by step 1) obtained wax stone is fixed on that to prepare rock sample mould therefor inner, and the placement location of wax stone is identical with the air pocket position in protolith rock sample;
3) take K39 resin and put into container: the K39 resin taking required quality according to the size of the protolith rock sample of required making;
4) prepare composite hardener: in rigidizer, add isophorone diamine make composite hardener, the mass ratio of rigidizer and isophorone diamine is according to the splitting rock sample intensity settings that need simulate;
5) to step 3) add promoter in the K39 resin that takes, the mass ratio of K39 resin and promoter is 100:0.6 ~ 1.0, is slowly stirred to and mixes obtained K glue after interpolation;
6) to step 5) add step 4 in obtained K glue) in obtained composite hardener, the mass ratio of K glue and composite hardener is 100:1.2 ~ 1.6, is slowly stirred to and mixes after interpolation;
7) to step 6 is housed) pour the hot water of 35 DEG C ~ 45 DEG C in the container of the obtained K glue mixed into, be evenly slowly stirred to K glue and become clarification;
8) continue evenly slowly to stir, to step 7 while evenly slowly stirring) add defoamer in the obtained K glue mixed, make K39 resin mixture liquor after stirring, the K glue mixed and the mass ratio of defoamer are 100:0.4 ~ 0.6;
9) by step 8) the K39 resin mixture liquor that obtained slowly pours step 2 into along mold wall) obtain be placed with in the mould of wax stone, leave standstill 1 ~ 2h, after the complete coagulation forming of resin, from mould, take out the obtained rock sample containing wax stone;
10) step 9 is taken out) wax stone in obtained rock sample, namely inner containing air pocket rock sample in obtained visualized experiment.
Step 5) in, the mass ratio of K39 resin and promoter is preferably 100:0.8, and the time of slowly stirring is 15 ~ 30 seconds.
Step 6) in, the mass ratio of K glue and composite hardener is preferably 100:1.4, and the time of slowly stirring is 15 ~ 30 seconds.
Step 7) in, to step 6 is housed) pour the hot water of 40 DEG C in the container of the obtained K glue mixed into, be evenly slowly stirred to K glue and become clarification; In container, the volume of hot water is 1/3 of container volume.
Step 8) in, the K glue mixed and the mass ratio of defoamer are preferably 100:0.5.
Step 10) take out step 9) method of wax stone in obtained simulation rock sample is:
Step one: in step 2) in, by step 1) obtained wax stone fine needle is fixed on that to prepare rock sample mould therefor inner, the placement location of wax stone is identical with the air pocket position in protolith rock sample, the syringe needle of fine needle thrusts wax stone inside, and the backshank of fine needle at least should retain the length of 1cm outside mould;
Step 2: step 10) in, to step 9) the wax stone place of the obtained rock sample containing wax stone carries out spot heating, liquid is melted into after wax stone is heated, fine needle on the rock sample of fixing wax stone is slowly extracted and makes to leave fine channel in rock sample, by the complete sucking-off of wax that syringe will melt from this passage, namely inner containing air pocket rock sample in obtained visualized experiment.
Step 4) rigidizer used is dibenzoyl peroxide, step 5) promoter used is xylidin, step 8) defoamer used is polyoxyethylene polyoxypropylene glycerin ether.
The computing method of the porosity of the rock sample of preparation are as follows:
(1) by step 10) the cylindrical rock sample of obtained drying is placed on balance and weighs, obtain mass M, measure the bottom surface radius r of cylindrical rock sample and high h;
(2) the apparent density R1=M/V=M/ π r of cylindrical rock sample is calculated
2h; .
(3) get the graduated cylinder that moisture volume is V1, the cylindrical rock sample of drying is put into graduated cylinder, moisture volume V2 under water surface rising postscript;
(4) the actual density R2=M/V=M/ (V1-V2) of cylindrical rock sample is calculated;
(5) the porosity P=(1-R1/R2) × 100% of cylindrical rock sample is calculated.
The computation process of the porosity of the rock sample adopting said method calculating obtained is as follows:
Example is as follows: containing the cylindrical rock sample mass M=196.76g of air pocket, record radius r=2 centimetre, bottom surface of cylindrical rock sample, high h=12 centimetre.Then by formula R1=M/ π r
2the apparent density R1 obtaining cylindrical rock sample is 1.305g/cm
3; The moisture volume V of graduated cylinder
1for 140.36ml, the volume V that this rock sample measures arrange water in graduated cylinder after
2for 280.80ml, by formula R
2=M/ (V
2-V
1) the actual density R of rock sample
2for 1.401g/cm
3.According to formula P=(1-R
1/ R
2the porosity P that) × 100% obtains rock sample is 6.85%.
K39 resin of the present invention has the following advantages:
K39 resin is transparency liquid, and non-volatility is nontoxic;
The K39 hardening of resin time is short, and intensity is adjustable, economical and practical.
Step 2) and step 9) mould that uses is preferably silica gel mould, have the following advantages:
The feature of silica gel is high temperature resistant, corrosion-resistant, and anti-tear drawing property is strong;
Silica gel mould is soft mold, compares hard mold, and it has and makes simple, that the demoulding is easy, meticulous feature;
Silica gel mould have be not easy to be out of shape, can the feature of Reusability.
Provided by the inventionly a kind ofly to prepare in rock sample visualized experiment the inner method containing air pocket rock sample, beneficial effect is as follows:
1, by adding the match ratio of the committed steps such as heating water bath and batching (promoter, isophorone diamine and defoamer), carry out the simulation to air pocket in rock sample, the inner problem that cannot produce air pocket of rock sample prepared by existing method can be solved, can be formed in protolith rock sample and form, size, the identical air pocket in position in protolith, thus the internal environment containing air pocket rock sample can be simulated better.
2, the rock sample transparency adopting K39 resin to make is good, reaches effect of visualization.
3, adding multiple assistant makes the deformation modulus of obtained rock sample adjustable, makes protolith rock consistent with Poisson ratio with the deformation performance of imitation specimen under different stress.
4, be bumped into the air pocket place of protolith with the wax stone after softening, form and the size of air pocket in protolith can be gone out by accurate simulation, make air pocket analogue technique more accurate; Wax stone is heated and easily melts, and fusing point far below resin material, and does not react with resin material material, is convenient to wax to be heated into sucking-off after liquid.
5, the feasibility analysis of the inventive method is as follows:
Reality simulation rock mass is carried out after adopting K39 resin forming.But can be different due to the composition of each adjuvant (promoter, isophorone diamine and defoamer) in resin manufacturing process, make the rock sample made have different physical propertys, comprise elastic modulus, Poisson ratio and peak value bearing capacity.Add up according to experimental study, the step 4 in obtained rock sample) indication content the having the greatest impact to rock mass of composite hardener.Therefore, adopt above-mentioned method for making to make the rock sample of different quality content rigidizer, then uniaxial compression test carried out to it, test findings as Figure 1-Figure 4,
Fig. 1 is with maximum displacement figure under different composite rigidizer mass content;
Fig. 2 is with springform spirogram under different composite rigidizer mass content;
Fig. 3 is for try hard to peak value under different composite rigidizer mass content;
Fig. 4 is with Poisson ratio figure under different composite rigidizer mass content.
In substantive markets, corresponding handicraft or machine tool are made to K39 resin, when carrying out proportioning combination interpolation reagent, require that the weight percent hundred of the relative crystal resin of rigidizer is 1%.But the elastic modulus of the rock sample made thus is little, distortion is large.In the process of carrying out uniaxial compression test, be often that bearing capacity does not also destroy when reaching about 120kN completely, but displacement deformation amount is beyond can test specification, is obviously the basic physical phenomenon not meeting true rock sample.After regulating the degree of rigidizer, hardness obviously strengthens, and is out of shape also corresponding diminishing, and to demonstrate it be completely can Reality simulation rock sample.Can be found out by Fig. 1-Fig. 4, when rigidizer content is 1%, bearing capacity intensity can reach 120kN, but deformation extent also reaches 4.2mm, and energy is converted into elasticity completely can losses with other; In addition, along with the reduction of rigidizer content, although in manufacturing process, resin becomes rock sample hardening by cooling process time longer, and elastic modulus is sustainable growth, and displacement maximum deformation quantity reduces, and its fragility is larger, and basic and true rock type seemingly.Illustrate rigidizer about 0.2% resin rock sample can simulate bearing capacity completely at about 50kN, elastic modulus is at the rock of about 2.2Gpa.
Fig. 5 is length travel rate of deformation figure; Fig. 6 is transversal displacement rate of deformation figure; Fig. 7 is corresponding catastrophe point explosion views in Fig. 5,6, and as can be seen from Fig. 5-Fig. 7,1.-process 2. can see the development that there occurs microfissure above bubble; 2. all there occurs shade change around-whole bubble of process 3., the crack illustrating around the inherent bubble of prerupture 0.2s substantially all there occurs expansion and through, just can make visually to it seems the appearance of shadow surface; 3.-process crack 4. development completely and the generation Visual Graph that namely Displacement Saltation destroy occurs; 4.-process 6. continues to extend along failure mechanics under continuation load application condition.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is with maximum displacement figure under different composite rigidizer mass content;
Fig. 2 is with springform spirogram under different composite rigidizer mass content;
Fig. 3 is for try hard to peak value under different composite rigidizer mass content;
Fig. 4 is with Poisson ratio figure under different composite rigidizer mass content;
Fig. 5 is length travel rate of deformation figure;
Fig. 6 is transversal displacement rate of deformation figure;
Fig. 7 is corresponding catastrophe point explosion views in Fig. 5,6.
Embodiment
Embodiment one
Prepare an inner method containing air pocket rock sample in rock sample visualized experiment, the method comprises the following steps:
1) open up mould: get need simulate containing air pocket protolith rock sample, the wax stone after softening is bumped into the inside of air pocket contained by protolith rock sample, takes out after wax stone solidifies completely;
2) wax stone is placed: by step 1) obtained wax stone is fixed on that to prepare rock sample mould therefor inner, and the placement location of wax stone is identical with the air pocket position in protolith rock sample;
3) take K39 resin and put into container: the K39 resin taking required quality according to the size of the protolith rock sample of required making;
4) prepare composite hardener: in rigidizer, add isophorone diamine make composite hardener, the mass ratio of rigidizer and isophorone diamine is according to the splitting rock sample intensity settings that need simulate;
5) to step 3) add promoter in the K39 resin that takes, the mass ratio of K39 resin and promoter is 100:0.6, is slowly stirred to and mixes obtained K glue after interpolation;
6) to step 5) add step 4 in obtained K glue) in obtained composite hardener, the mass ratio of K glue and composite hardener is 100:1.2, is slowly stirred to and mixes after interpolation;
7) to step 6 is housed) pour the hot water of 35 DEG C in the container of the obtained K glue mixed into, be evenly slowly stirred to K glue and become clarification;
8) continue evenly slowly to stir, to step 7 while evenly slowly stirring) add defoamer in the obtained K glue mixed, make K39 resin mixture liquor after stirring, the K glue mixed and the mass ratio of defoamer are 100:0.4;
9) by step 8) the K39 resin mixture liquor that obtained slowly pours step 2 into along mold wall) obtain be placed with in the mould of wax stone, leave standstill 1 ~ 2h, after the complete coagulation forming of resin, from mould, take out the obtained rock sample containing wax stone;
10) step 9 is taken out) wax stone in obtained rock sample, namely inner containing air pocket rock sample in obtained visualized experiment.
Step 5) in, the time of slowly stirring is 15 seconds.
Step 6) in, the time of slowly stirring is 15 seconds.
Step 7) in, in container, the volume of hot water is 1/3 of container volume.
Step 10) take out step 9) method of wax stone in obtained simulation rock sample is:
Step one: in step 2) in, by step 1) obtained wax stone fine needle is fixed on that to prepare rock sample mould therefor inner, the placement location of wax stone is identical with the air pocket position in protolith rock sample, the syringe needle of fine needle thrusts wax stone inside, and the backshank of fine needle at least should retain the length of 1cm outside mould;
Step 2: step 10) in, to step 9) the wax stone place of the obtained rock sample containing wax stone carries out spot heating, liquid is melted into after wax stone is heated, fine needle on the rock sample of fixing wax stone is slowly extracted and makes to leave fine channel in rock sample, by the complete sucking-off of wax that syringe will melt from this passage, namely inner containing air pocket rock sample in obtained visualized experiment.
The wax stone used in above-mentioned steps is red wax stone.
Step 4) rigidizer used is dibenzoyl peroxide, step 5) promoter used is xylidin, step 8) defoamer used is polyoxyethylene polyoxypropylene glycerin ether.
Embodiment two
Prepare an inner method containing air pocket rock sample in rock sample visualized experiment, the method comprises the following steps:
1) open up mould: get need simulate containing air pocket protolith rock sample, the wax stone after softening is bumped into the inside of air pocket contained by protolith rock sample, takes out after wax stone solidifies completely;
2) wax stone is placed: by step 1) obtained wax stone is fixed on that to prepare rock sample mould therefor inner, and the placement location of wax stone is identical with the air pocket position in protolith rock sample;
3) take K39 resin and put into container: the K39 resin taking required quality according to the size of the protolith rock sample of required making;
4) prepare composite hardener: in rigidizer, add isophorone diamine make composite hardener, the mass ratio of rigidizer and isophorone diamine is according to the splitting rock sample intensity settings that need simulate;
5) to step 3) add promoter in the K39 resin that takes, the mass ratio of K39 resin and promoter is 100:0.8, is slowly stirred to and mixes obtained K glue after interpolation;
6) to step 5) add step 4 in obtained K glue) in obtained composite hardener, the mass ratio of K glue and composite hardener is 100:1.4, is slowly stirred to and mixes after interpolation;
7) to step 6 is housed) pour the hot water of 40 DEG C in the container of the obtained K glue mixed into, be evenly slowly stirred to K glue and become clarification;
8) continue evenly slowly to stir, to step 7 while evenly slowly stirring) add defoamer in the obtained K glue mixed, make K39 resin mixture liquor after stirring, the K glue mixed and the mass ratio of defoamer are 100:0.5;
9) by step 8) the K39 resin mixture liquor that obtained slowly pours step 2 into along mold wall) obtain be placed with in the mould of wax stone, leave standstill 1 ~ 2h, after the complete coagulation forming of resin, from mould, take out the obtained rock sample containing wax stone;
10) step 9 is taken out) wax stone in obtained rock sample, namely inner containing air pocket rock sample in obtained visualized experiment.
Step 5) in, the time of slowly stirring is 20 seconds.
Step 6) in, the time of slowly stirring is 20 seconds.
Step 7) in, in container, the volume of hot water is 1/3 of container volume.
Step 10) take out step 9) method of wax stone in obtained simulation rock sample is:
Step one: in step 2) in, by step 1) obtained wax stone fine needle is fixed on that to prepare rock sample mould therefor inner, the placement location of wax stone is identical with the air pocket position in protolith rock sample, the syringe needle of fine needle thrusts wax stone inside, and the backshank of fine needle at least should retain the length of 1cm outside mould;
Step 2: step 10) in, to step 9) the wax stone place of the obtained rock sample containing wax stone carries out spot heating, liquid is melted into after wax stone is heated, fine needle on the rock sample of fixing wax stone is slowly extracted and makes to leave fine channel in rock sample, by the complete sucking-off of wax that syringe will melt from this passage, namely inner containing air pocket rock sample in obtained visualized experiment.
The wax stone used in above-mentioned steps is red wax stone.
Step 4) rigidizer used is dibenzoyl peroxide, step 5) promoter used is xylidin, step 8) defoamer used is polyoxyethylene polyoxypropylene glycerin ether.
Embodiment three
Prepare an inner method containing air pocket rock sample in rock sample visualized experiment, the method comprises the following steps:
1) open up mould: get need simulate containing air pocket protolith rock sample, the wax stone after softening is bumped into the inside of air pocket contained by protolith rock sample, takes out after wax stone solidifies completely;
2) wax stone is placed: by step 1) obtained wax stone is fixed on that to prepare rock sample mould therefor inner, and the placement location of wax stone is identical with the air pocket position in protolith rock sample;
3) take K39 resin and put into container: the K39 resin taking required quality according to the size of the protolith rock sample of required making;
4) prepare composite hardener: in rigidizer, add isophorone diamine make composite hardener, the mass ratio of rigidizer and isophorone diamine is according to the splitting rock sample intensity settings that need simulate;
5) to step 3) add promoter in the K39 resin that takes, the mass ratio of K39 resin and promoter is 100:1.0, is slowly stirred to and mixes obtained K glue after interpolation;
6) to step 5) add step 4 in obtained K glue) in obtained composite hardener, the mass ratio of K glue and composite hardener is 100:1.6, is slowly stirred to and mixes after interpolation;
7) to step 6 is housed) pour the hot water of 45 DEG C in the container of the obtained K glue mixed into, be evenly slowly stirred to K glue and become clarification;
8) continue evenly slowly to stir, to step 7 while evenly slowly stirring) add defoamer in the obtained K glue mixed, make K39 resin mixture liquor after stirring, the K glue mixed and the mass ratio of defoamer are 100:0.6;
9) by step 8) the K39 resin mixture liquor that obtained slowly pours step 2 into along mold wall) obtain be placed with in the mould of wax stone, leave standstill 1 ~ 2h, after the complete coagulation forming of resin, from mould, take out the obtained rock sample containing wax stone;
10) step 9 is taken out) wax stone in obtained rock sample, namely inner containing air pocket rock sample in obtained visualized experiment.
Step 5) in, the time of slowly stirring is 30 seconds.
Step 6) in, the time of slowly stirring is 30 seconds.
Step 7) in, in container, the volume of hot water is 1/3 of container volume.
Step 10) take out step 9) method of wax stone in obtained simulation rock sample is:
Step one: in step 2) in, by step 1) obtained wax stone fine needle is fixed on that to prepare rock sample mould therefor inner, the placement location of wax stone is identical with the air pocket position in protolith rock sample, the syringe needle of fine needle thrusts wax stone inside, and the backshank of fine needle at least should retain the length of 1cm outside mould;
Step 2: step 10) in, to step 9) the wax stone place of the obtained rock sample containing wax stone carries out spot heating, liquid is melted into after wax stone is heated, fine needle on the rock sample of fixing wax stone is slowly extracted and makes to leave fine channel in rock sample, by the complete sucking-off of wax that syringe will melt from this passage, namely inner containing air pocket rock sample in obtained visualized experiment.
The wax stone used in above-mentioned steps is red wax stone.
Step 4) rigidizer used is dibenzoyl peroxide, step 5) promoter used is xylidin, step 8) defoamer used is polyoxyethylene polyoxypropylene glycerin ether.
Claims (8)
1. prepare an inner method containing air pocket rock sample in rock sample visualized experiment, it is characterized in that the method comprises the following steps:
1) open up mould: get need simulate containing air pocket protolith rock sample, the wax stone after softening is bumped into the inside of air pocket contained by protolith rock sample, takes out after wax stone solidifies completely;
2) wax stone is placed: by step 1) obtained wax stone is fixed on that to prepare rock sample mould therefor inner, and the placement location of wax stone is identical with the air pocket position in protolith rock sample;
3) take K39 resin and put into container: the K39 resin taking required quality according to the size of the protolith rock sample of required making;
4) prepare composite hardener: in rigidizer, add isophorone diamine make composite hardener, the mass ratio of rigidizer and isophorone diamine is according to the splitting rock sample intensity settings that need simulate;
5) to step 3) add promoter in the K39 resin that takes, the mass ratio of K39 resin and promoter is 100:0.6 ~ 1.0, is slowly stirred to and mixes obtained K glue after interpolation;
6) to step 5) add step 4 in obtained K glue) in obtained composite hardener, the mass ratio of K glue and composite hardener is 100:1.2 ~ 1.6, is slowly stirred to and mixes after interpolation;
7) to step 6 is housed) pour the hot water of 35 DEG C ~ 45 DEG C in the container of the obtained K glue mixed into, be evenly slowly stirred to K glue and become clarification;
8) continue evenly slowly to stir, to step 7 while evenly slowly stirring) add defoamer in the obtained K glue mixed, make K39 resin mixture liquor after stirring, the K glue mixed and the mass ratio of defoamer are 100:0.4 ~ 0.6;
9) by step 8) the K39 resin mixture liquor that obtained slowly pours step 2 into along mold wall) obtain be placed with in the mould of wax stone, leave standstill 1 ~ 2h, after the complete coagulation forming of resin, from mould, take out the obtained rock sample containing wax stone;
10) step 9 is taken out) wax stone in obtained rock sample, namely inner containing air pocket rock sample in obtained visualized experiment.
2. according to claim 1ly a kind ofly to prepare in rock sample visualized experiment the inner method containing air pocket rock sample, it is characterized in that: step 5) in, the mass ratio of K39 resin and promoter is 100:0.8, and the time of slowly stirring is 15 ~ 30 seconds.
3. according to claim 1ly a kind ofly to prepare in rock sample visualized experiment the inner method containing air pocket rock sample, it is characterized in that: step 6) in, the mass ratio of K glue and composite hardener is 100:1.4, and the time of slowly stirring is 15 ~ 30 seconds.
4. according to claim 1ly a kind ofly to prepare in rock sample visualized experiment the inner method containing air pocket rock sample, it is characterized in that: step 7) in, to step 6 is housed) pour the hot water of 40 DEG C in the container of the obtained K glue mixed into, be evenly slowly stirred to K glue and become clarification.
5. according to claim 4ly a kind ofly to prepare in rock sample visualized experiment the inner method containing air pocket rock sample, it is characterized in that: step 7) in, in container, the volume of hot water is 1/3 of container volume.
6. according to claim 1ly a kind ofly to prepare in rock sample visualized experiment the inner method containing air pocket rock sample, it is characterized in that: step 8) in, the K glue mixed and the mass ratio of defoamer are 100:0.5.
7. according to claim 1ly a kind ofly to prepare in rock sample visualized experiment the inner method containing air pocket rock sample, it is characterized in that step 10) take out step 9) method of wax stone in obtained simulation rock sample is:
Step one: in step 2) in, by step 1) obtained wax stone fine needle is fixed on that to prepare rock sample mould therefor inner, the placement location of wax stone is identical with the air pocket position in protolith rock sample, the syringe needle of fine needle thrusts wax stone inside, and the backshank of fine needle at least should retain the length of 1cm outside mould;
Step 2: step 10) in, to step 9) the wax stone place of the obtained rock sample containing wax stone carries out spot heating, liquid is melted into after wax stone is heated, fine needle on the rock sample of fixing wax stone is slowly extracted and makes to leave fine channel in rock sample, by the complete sucking-off of wax that syringe will melt from this passage, namely inner containing air pocket rock sample in obtained visualized experiment.
8. according to claim 1ly a kind ofly to prepare in rock sample visualized experiment the inner method containing air pocket rock sample, it is characterized in that: step 4) rigidizer used is dibenzoyl peroxide, step 5) promoter used is xylidin, step 8) defoamer used is polyoxyethylene polyoxypropylene glycerin ether.
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| CN109738257A (en) * | 2019-02-28 | 2019-05-10 | 山东科技大学 | A kind of preparation method of fine coal coal petrography mating plate |
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