CN103630668A - Large-inclination-angle coal seam similar simulation experimental device and method - Google Patents
Large-inclination-angle coal seam similar simulation experimental device and method Download PDFInfo
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- CN103630668A CN103630668A CN201310606948.7A CN201310606948A CN103630668A CN 103630668 A CN103630668 A CN 103630668A CN 201310606948 A CN201310606948 A CN 201310606948A CN 103630668 A CN103630668 A CN 103630668A
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 239000003245 coal Substances 0.000 title claims abstract description 40
- 238000004088 simulation Methods 0.000 title claims abstract description 35
- 239000000463 material Substances 0.000 claims abstract description 72
- 238000000034 method Methods 0.000 claims abstract description 23
- 238000003756 stirring Methods 0.000 claims description 18
- 241000681094 Zingel asper Species 0.000 claims description 15
- 239000010410 layer Substances 0.000 claims description 12
- 239000011229 interlayer Substances 0.000 claims description 6
- 239000010445 mica Substances 0.000 claims description 6
- 229910052618 mica group Inorganic materials 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 230000001154 acute Effects 0.000 claims description 5
- 238000005065 mining Methods 0.000 abstract description 6
- 238000002474 experimental method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000011435 rock Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000009877 rendering Methods 0.000 description 3
- 230000002349 favourable Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
Abstract
The invention discloses a large-inclination-angle coal seam similar simulation experimental device and method. According to the large-inclination-angle coal seam similar simulation experimental device, on the basis of a mining physical similar simulation experimental device in the prior art, a hydraulic hoisting device or a lifting device is eliminated, and a right-triangle-shaped protection plate is additionally arranged; by virtue of different combinations of the right-triangle-shaped protection plate and a horizontal protection plate, the using functions of laying horizontal similar materials and laying large-inclination-angle similar materials can be realized. The invention also discloses the experimental method using the experimental device. The experimental method is easy to operate, labor and material resources are saved, and different inclination angles of coal seam similar materials can be obtained by replacing triangular protection plates with different angles; more importantly, the whole experimental device does not need to be raised or lifted to be inclined in the experimental process, so that the similar materials can be compacted, and the truth and reliability of a simulation experiment result are further improved.
Description
Technical field
The present invention relates to a kind of equivalent material simulating experimental provision and experimental technique thereof, especially relate to a kind of large-inclination-angle coal bed analog simulation experimental provision and experimental technique thereof.
Background technology
In order to guarantee better the safety in production of underground mine; exploit mineral resources, protection environment of mining area and surface facility to greatest extent; must study rock pressure [in mine and rock stratum mechanics, development rock strata support technology and control measure, this is an eternal important theme of mining subject.Yet, numerous for influence factor, be subject to the mechanics problem that artificial disturbance is serious, physical process is very complicated, because people are difficult to whole influence factors place of understanding problem fully aware of, cannot obtain exactly the stress tensor of rock mass and the relation of strain tensor described, be constitutive relation, therefore usually cannot carry out accurate geographic opinion to problem and calculate and numerical simulation analysis.The coarse backwardness of test instrumentation that existing mine is used, the more advanced instrument and meter of other field cannot adapt to again the severe working environment of mine down-hole, and field measurement need expend a large amount of human and material resources, the natural period, field condition restriction was serious, limitation is large compared with growing, being subject to.
During the test of mining physical simulation, utilize the material similar with prototype mechanical property, according to parameters such as on-the-spot geologic information, coal rock layer histogram and coal seam physical mechanicses, field engineering research object is become to empirical model according to certain ratio contraction, on model, excavate again all kinds of engineerings, as mine working and chamber, Structures of Longwall etc., by the simulation to engineering process, the Mechanics Phenomenons such as distortion, movement and destruction of observation and research engineering country rock body.Applications similar simulated experiment is a kind of generally acknowledged effective research method.
At present, in laboratory, traditional equivalent material simulating experimental provision adopts horizontal sheeting to protect analog material parking space mostly, is difficult to form the analog material parking space with high spud angle, is therefore only suitable for laying horizontal stratum.As shown in Figure 1, in prior art, for carrying out large-inclination-angle coal bed equivalent material simulating experiment, need to adopt the equivalent material simulating experimental provision with hydraulic lifting mechanism, according to required angle of inclination, by adjusting hydraulic lifting mechanism so that one end of analogue experiment installation is raised, to form certain inclination angle; Based on similar design concept, in prior art, also have a kind of equivalent material simulating experimental provision that adopts hoisting gear, it tilts whole device after one end of analogue experiment installation is promoted, thereby obtains required inclination angle.
Because equivalent material simulating experimental provision internal capacity reaches nearly ten cubic metres or even tens cubic metres or larger, the method that experimental provision is raised that above-mentioned equivalent material simulating experimental provision adopts, to carry out large-inclination-angle coal bed equivalent material simulating experiment, advantage is that inclination angle can regulate arbitrarily.But there is the defect of following four aspects simultaneously: the one, in experimentation, due to carry out analog material while laying work space increase, analog material is laid difficulty and is increased; The 2nd, due to several tons of above weight of its full load ten, make its balance and poor stability, particularly follow-up to the compacting process of analog material in, inevitably there is double swerve or follow to a certain degree upper and lower displacement, affect the consolidation effect of analog material, and because the reason of angle between pressure vertically downward and inclined seam analog material, there is dead angle in its compacting process, and then affects the validity of experimental result; The 3rd, equipment manufacturing cost is high, power consumption is large and the operating space of needs is large; The 4th, there is certain potential safety hazard.
Summary of the invention
One of object of the present invention is, provide a kind of simple in structure, equipment manufacturing cost compared with low, power consumption is little, the large-inclination-angle coal bed equivalent material simulating experimental provision of safety and stability, meet to carry out that horizontal seam analog material lays and can carry out the requirement that large-inclination-angle coal bed analog material lays.
The present invention for achieving the above object technical issues that need to address is, on the basis of the mining physical simulation experimental provision of prior art, omit after its hydraulic pressure lifting device or lifting gear being equipped with, still possess realization and can carry out horizontal analog material and lay, can carry out the use function that high spud angle analog material lays again.
The present invention is that the technical scheme that solves the problems of the technologies described above employing is, a large-inclination-angle coal bed analog simulation experimental provision, is grouped into by rack section and detachable part, wherein, rack section is except rectangular bottom surface and left and right sides face closure, and its forward and backward and end face is unlimited body structure all;
The xsect on each limit of framework of described former and later two faces groove structure that all takes the shape of the letter U;
Described removable section comprises apron plate and the rear backplate of strip, it is characterized in that, also include right-angle triangle backplate, described apron plate inserts in the U-lag of described front baffle, described rear backplate xsect comprises the structure of the groove that takes the shape of the letter U respectively below and the convex edge structure of pegging graft and matching with this U-lag, described rear backplate inserts respectively in the U-lag of described afterframe as required successively, described right-angle triangle backplate need to insert in the U-lag of described rear backplate successively according to using, and need in the U-lag of described rear backplate, move according to using.
Adopt the large-inclination-angle coal bed analog simulation experimental provision of technique scheme, by introducing right-angle triangle backplate, in model process of deployment, right-angle triangle backplate and forward and backward horizontal strip backplate are used in combination, can carry out high spud angle analog material and lay; In the situation that only using forward and backward backplate, can carry out horizontal analog material and lay.Because it has omitted hydraulic lifting mechanism or hoisting gear, make whole analogue experiment installation not need one end to raise or be promoted to the moulding that inclination can be carried out coal seam analog material with angle; Its technique effect directly producing is, reduce analog material and laid difficulty and compacting process operation control difficulty, guarantee analog material laying and consolidation effect, and reduced equipment manufacturing cost, the large and required operating space of power consumption, and eliminated the potential safety hazard existing in prior art.
As preferably, the right-angle triangle backplate that above-mentioned right-angle triangle backplate is different acute angles becomes sleeve assembly.
The technique effect that above-mentioned optimal technical scheme directly produces is, by the replacement of different angles triangle backplate, uses, and can obtain the required angle of inclination of different simulated experiments.
Further preferably, above-mentioned right-angle triangle backplate is plank.
The technique effect that above-mentioned optimal technical scheme produces is, can reduce adhesion amount and the attachment fastness of cast material on right-angle triangle backplate, and plank is easy to obtain, cost of manufacture is low, cutting and the making of the right-angle triangle backplate of the big or small acute angle of various differences can be carried out in scene.
Two of object of the present invention is that a kind of experimental technique that can adapt to large-inclination-angle coal bed analog simulation experimental provision is provided.
The present invention for achieving the above object technical issues that need to address is, being used in combination of right-angle triangle backplate and forward and backward horizontal sheeting, to carry out large-inclination-angle coal bed analog simulation experiment, the technical matters that can carry out the analog simulation experiment of different angle coal seam by replacing the right-angle triangle backplate of different acute angles.
The present invention is that the technical scheme that solves the problems of the technologies described above employing is, a kind of experimental technique of large-inclination-angle coal bed analog simulation experimental provision claimed in claim 1, is characterized in that, comprises the following steps:
A, apron plate is all installed in the U-shaped groove of front baffle, and backplate after first is arranged in the U-shaped groove of afterframe, two right-angle sides of right-angle triangle backplate are inserted respectively in the U-shaped groove of backplate after the U-shaped groove of afterframe and first, form the initial position of right-angle triangle backplate, and between right-angle triangle backplate and apron plate, form ground floor analog material parking space;
B, take in proportion respectively the various raw materials of experiment required coal seam analog material, and pour in stirring machine and stir, then add water and stir, after pour ground floor analog material parking space into, with scraper plate, strike off and compacting, spread from the teeth outwards mica powder as interlayer, then flatten;
C, by right-angle triangle backplate along pushing ahead certain distance to the second place in the U-shaped groove of rear backplate, make distance between the right-angle triangle backplate hypotenuse of the second place and the right-angle triangle backplate hypotenuse of initial position equal the bed thickness of analog material, between right-angle triangle backplate and apron plate, form second layer analog material parking space;
D, take in proportion respectively the various raw materials of the required analog material of experiment, and pour in stirring machine and stir, then add water and stir, after pour second layer analog material parking space into, with scraper plate, strike off and compacting, spread from the teeth outwards mica powder as interlayer, then flatten;
E, advance right-angle triangle backplate repeating step c, d to lay to this layer of analog material successively;
F, often complete after the laying of one deck analog material, correspondingly install backplate after one deck additional, then repeat successively above-mentioned steps, until finish.
Adopting the similar material model that above-mentioned experimental technique obtains is layer structure, and analog material just in time equals the angle between right-angle triangle backplate hypotenuse and the bottom surface of rack section horizontal by certain ，Gai angle of inclination, angle of inclination between layers.Therefore, the technique effect of technique scheme is, experimental implementation is easy, use manpower and material resources sparingly, and by the replacement of different angles triangle backplate, uses, and can obtain the required analog material angle of inclination of different simulated experiments; What is more important, in experimentation, does not need whole experimental provision to raise or be promoted to inclination, the compacting of favourable assurance analog material, and then authenticity and the reliability of raising simulated experiment result.
In sum, large-inclination-angle coal bed analog simulation experimental provision of the present invention has useful technique effect, it is on the basis of the mining physical simulation experimental provision of prior art, omit after its hydraulic pressure lifting device or lifting gear being equipped with, still possess realization and can carry out that horizontal seam analog material lays and can carry out the use function that large-inclination-angle coal bed analog material lays;
Large-inclination-angle coal bed analog simulation experimental provision of the present invention, in the course of work, its balance and good stability, operation, control difficulty that analog material lays difficulty and compacting process have been reduced, analog material laying and consolidation effect have been guaranteed, reduce equipment manufacturing cost, power consumption and required operating space, and eliminated the potential safety hazard existing in prior art;
The experimental technique of large-inclination-angle coal bed analog simulation experimental provision of the present invention, easy and simple to handle, use manpower and material resources sparingly, by the replacement of different angles triangle backplate, use, can obtain the different angle of inclination of the required analog material of simulated experiment; What is more important, in experimentation, does not need whole experimental provision to raise or be promoted to inclination, the consolidation effect of favourable assurance analog material, and then authenticity and the reliability of raising simulated experiment result.
Accompanying drawing explanation
Fig. 1 is the view of the coal seam analog simulation experimental provision experimentation of prior art;
Fig. 2 is large-inclination-angle coal bed analog simulation experimental provision perspective view of the present invention (before mainly illustrating);
Fig. 3 is large-inclination-angle coal bed analog simulation experimental provision volume rendering structural representation of the present invention (before mainly illustrating);
Fig. 4 is large-inclination-angle coal bed analog simulation experimental provision perspective view of the present invention (after mainly illustrating);
Fig. 5 is large-inclination-angle coal bed analog simulation experimental provision volume rendering structural representation of the present invention (after mainly illustrating);
Fig. 6 is large-inclination-angle coal bed analog simulation experimental provision volume rendering structural representation of the present invention (side is mainly shown);
Fig. 7 is the cross-sectional view that right-angle triangle backplate amplifies.
Embodiment
Below in conjunction with accompanying drawing, large-inclination-angle coal bed analog simulation experimental provision of the present invention is elaborated.
As shown in Fig. 2-Fig. 7, large-inclination-angle coal bed analog simulation experimental provision of the present invention, is grouped into by rack section and detachable part, (as shown in the figure, rack section includes back timber 3, column 2, base 1).Wherein, rack section is except rectangular bottom surface and arranged on left and right sides face closure, and its forward and backward and end face is unlimited body structure all;
The xsect on each limit of framework of described former and later two faces groove structure that all takes the shape of the letter U;
Described removable section comprises apron plate 5 and the rear backplate 6 of strip, it is characterized in that, also includes right-angle triangle backplate 4, and described apron plate inserts in the U-lag of described front baffle; As shown in Figure 7, described rear backplate xsect comprises the structure of the groove that takes the shape of the letter U respectively below and the convex edge structure of pegging graft and matching with this U-lag, described rear backplate inserts respectively in the U-lag of described afterframe as required successively, described right-angle triangle backplate need to insert in the U-lag of described rear backplate successively according to using, and need in the U-lag of described rear backplate, move according to using.
Preferably, the right-angle triangle backplate that above-mentioned right-angle triangle backplate 4 can select plank to be made as different acute angles becomes sleeve assembly.
Below in conjunction with accompanying drawing, large-inclination-angle coal bed analog simulation experimental provision experimental technique of the present invention is elaborated.
As shown in Fig. 2-Fig. 7, the experimental technique of large-inclination-angle coal bed analog simulation experimental provision of the present invention, comprises the following steps:
A, apron plate 5 is all installed in the U-shaped groove of front baffle, and backplate 6 after first is arranged in the U-shaped groove of afterframe, two right-angle sides of right-angle triangle backplate 4 are inserted respectively in the U-shaped groove of backplate after the U-shaped groove of afterframe and first, form the initial position of right-angle triangle backplate, and between right-angle triangle backplate 4 and apron plate 5, form ground floor analog material parking space;
B, take in proportion respectively the various raw materials of the required analog material of experiment, and pour in stirring machine and stir, then add water and stir, after pour ground floor analog material parking space into, with scraper plate, strike off and compacting, spread from the teeth outwards mica powder as interlayer, then flatten;
C, by right-angle triangle backplate 4 along pushing ahead certain distance to the second place in the U-shaped groove of rear backplate, make distance between the right-angle triangle backplate hypotenuse of the second place and the right-angle triangle backplate hypotenuse of initial position equal the bed thickness of analog material, between right-angle triangle backplate 4 and apron plate 5, form second layer analog material parking space;
D, take in proportion respectively the various raw materials of the required analog material of experiment, and pour in stirring machine and stir, then add water and stir, after pour second layer analog material parking space into, with scraper plate, strike off and compacting, spread from the teeth outwards mica powder as interlayer, then flatten;
E, advance right-angle triangle backplate 4 successively, repeating step c, d have laid to this layer of analog material;
F, often complete after the laying of one deck analog material, correspondingly install backplate 6 after one deck additional, then repeat successively above-mentioned steps, until finish.
Claims (4)
1. a large-inclination-angle coal bed analog simulation experimental provision, is grouped into by rack section and detachable part, and wherein, rack section is except rectangular bottom surface and left and right sides face closure, and its forward and backward and end face is unlimited body structure all;
The xsect on each limit of framework of described former and later two faces groove structure that all takes the shape of the letter U;
Described removable section comprises apron plate and the rear backplate of strip, it is characterized in that, also include right-angle triangle backplate, described apron plate inserts in the U-lag of described front baffle, described rear backplate xsect comprises the structure of the groove that takes the shape of the letter U respectively below and the convex edge structure of pegging graft and matching with this U-lag, described rear backplate inserts respectively in the U-lag of described afterframe as required successively, described right-angle triangle backplate need to insert in the U-lag of described rear backplate successively according to using, and need in the U-lag of described rear backplate, move according to using.
2. large-inclination-angle coal bed analog simulation experimental provision according to claim 1, is characterized in that, the right-angle triangle backplate that described right-angle triangle backplate is different acute angles becomes sleeve assembly.
3. large-inclination-angle coal bed analog simulation experimental provision according to claim 1 and 2, is characterized in that, described right-angle triangle backplate is plank.
4. an experimental technique for large-inclination-angle coal bed analog simulation experimental provision claimed in claim 1, is characterized in that, comprises the following steps:
A, apron plate is all installed in the U-shaped groove of front baffle, and backplate after first is arranged in the U-shaped groove of afterframe, two right-angle sides of right-angle triangle backplate are inserted respectively in the U-shaped groove of backplate after the U-shaped groove of afterframe and first, form the initial position of right-angle triangle backplate, and between right-angle triangle backplate and apron plate, form ground floor analog material parking space;
B, take in proportion respectively the various raw materials of experiment required coal seam analog material, and pour in stirring machine and stir, then add water and stir, after pour ground floor analog material parking space into, with scraper plate, strike off and compacting, spread from the teeth outwards mica powder as interlayer, then flatten;
C, by right-angle triangle backplate along pushing ahead certain distance to the second place in the U-shaped groove of rear backplate, make distance between the right-angle triangle backplate hypotenuse of the second place and the right-angle triangle backplate hypotenuse of initial position equal the bed thickness of analog material, between right-angle triangle backplate and apron plate, form second layer analog material parking space;
D, take in proportion respectively the various raw materials of experiment required coal seam analog material, and pour in stirring machine and stir, then add water and stir, after pour second layer analog material parking space into, with scraper plate, strike off and compacting, spread from the teeth outwards mica powder as interlayer, then flatten;
E, advance right-angle triangle backplate repeating step c, d to lay to this layer of analog material successively;
F, often complete after the laying of one deck analog material, correspondingly install backplate after one deck additional, then repeat successively above-mentioned steps, until finish.
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| CN104596855A (en) * | 2015-01-09 | 2015-05-06 | 山东科技大学 | Physical similar simulation test device and physical similar simulation test method for tilted stratums |
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| CN104849081A (en) * | 2015-05-06 | 2015-08-19 | 黑龙江科技大学 | Novel analog simulation test platform for reconstructed emergency rescue channel of coal mine |
| CN104849428A (en) * | 2015-04-30 | 2015-08-19 | 华北科技学院 | Experimental device for simulating overlaying strata migration and water and sand bursting of underground coal mining |
| CN105021437A (en) * | 2015-07-28 | 2015-11-04 | 河南理工大学 | Simulated rock stratum impacting and scraping device in analog simulation experiment |
| CN105034139A (en) * | 2015-08-06 | 2015-11-11 | 山东科技大学 | Analog simulation experiment system and method based on 3D printing rapid prototyping technology |
| CN105301222A (en) * | 2015-10-20 | 2016-02-03 | 山东科技大学 | Rotatable similar material simulation experiment table and using method thereof |
| CN105469686A (en) * | 2015-12-25 | 2016-04-06 | 西安科技大学 | Physical analog simulation test platform with variable angle and application method for same |
| CN108548712A (en) * | 2018-03-07 | 2018-09-18 | 山东大学 | A kind of simulation different angle tilted stratum physical model test device and method |
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| CN104458309B (en) * | 2014-12-10 | 2017-04-19 | 西安科技大学 | Similar material proportion determining method used in physical simulation experiment |
| CN104458309A (en) * | 2014-12-10 | 2015-03-25 | 西安科技大学 | Similar material proportion determining method used in physical simulation experiment |
| CN104596855A (en) * | 2015-01-09 | 2015-05-06 | 山东科技大学 | Physical similar simulation test device and physical similar simulation test method for tilted stratums |
| CN104596855B (en) * | 2015-01-09 | 2017-03-08 | 山东科技大学 | A kind of tilted stratum physical simulation assay device and method |
| CN104849428A (en) * | 2015-04-30 | 2015-08-19 | 华北科技学院 | Experimental device for simulating overlaying strata migration and water and sand bursting of underground coal mining |
| CN104849428B (en) * | 2015-04-30 | 2016-03-30 | 华北科技学院 | The migration of a kind of simulate formation coal mining overlying strata and gushing water are burst sand experimental provision |
| CN104849081A (en) * | 2015-05-06 | 2015-08-19 | 黑龙江科技大学 | Novel analog simulation test platform for reconstructed emergency rescue channel of coal mine |
| CN104849081B (en) * | 2015-05-06 | 2017-06-30 | 黑龙江科技大学 | Reproduce emergency management and rescue passage analog simulation testing stand in a kind of colliery |
| CN104807974A (en) * | 2015-05-08 | 2015-07-29 | 西安科技大学 | Similar material coalbed mining simulation test stand and test method |
| CN105021437A (en) * | 2015-07-28 | 2015-11-04 | 河南理工大学 | Simulated rock stratum impacting and scraping device in analog simulation experiment |
| CN105021437B (en) * | 2015-07-28 | 2017-09-29 | 河南理工大学 | Rock stratum is simulated in a kind of similarity simulation experiment and hits tight scraping device |
| CN105034139A (en) * | 2015-08-06 | 2015-11-11 | 山东科技大学 | Analog simulation experiment system and method based on 3D printing rapid prototyping technology |
| CN105301222A (en) * | 2015-10-20 | 2016-02-03 | 山东科技大学 | Rotatable similar material simulation experiment table and using method thereof |
| CN105469686A (en) * | 2015-12-25 | 2016-04-06 | 西安科技大学 | Physical analog simulation test platform with variable angle and application method for same |
| CN108548712A (en) * | 2018-03-07 | 2018-09-18 | 山东大学 | A kind of simulation different angle tilted stratum physical model test device and method |
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