CN103489362A - Simulation demonstration system model for revealing moving of overlying rock layer at coal goaf - Google Patents

Simulation demonstration system model for revealing moving of overlying rock layer at coal goaf Download PDF

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Publication number
CN103489362A
CN103489362A CN201310432135.0A CN201310432135A CN103489362A CN 103489362 A CN103489362 A CN 103489362A CN 201310432135 A CN201310432135 A CN 201310432135A CN 103489362 A CN103489362 A CN 103489362A
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module
fissure zone
system model
goaf
announcement
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CN103489362B (en
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张向阳
冯飞胜
杨敏
汪颖
吴艳
鲁珊
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Anhui University of Science and Technology
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Anhui University of Science and Technology
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Abstract

The invention discloses a simulation demonstration system model for revealing the three-zone movement of an overlying rock layer at the coal goaf. The model sequentially comprises a coal bed module (5), a caving zone module (4), a fissure zone module (3), a bending sinking zone module (2) and a hard rock layer module (1) from bottom to top, wherein the coal bed module (5), the caving zone module (4), the fissure zone module (3), the bending sinking zone module (2) and the hard rock layer module (1) are stacked together. The middle of the coal bed module (5) is the goaf (16), the goaf (16) comprises an air sac (9), and the height of the air sac (9) after being inflated is the same as that of the coal bed module (5). The caving zone module (4) is formed by alternately arranging at least 20 gangue modules (7), and the fissure zone module (3) comprises two first fissure zone modules (17) arranged at the two ends, and at least five second fissure zone modules (12). The simulation demonstration system model for revealing the three-zone moving of the overlying rock layer can demonstrate the occurrence, development and evolution processes of the three zones of the overlying rock layer, and be simple in structure and convenient to operate.

Description

A kind of Simulation Demo System model that discloses the coal seam goaf movement
Technical field
The present invention relates to a kind of model of Simulation Demo System, be specifically related to a kind of Simulation Demo System of superincumbent stratum three with the characteristics of motion that disclose, be applicable to that the stope overlying strata move and the teaching demonstration of face roof active procedure.
Background technology
In coal industry teaching, production and scientific research activity, inquiring into the distortion, movement, destruction of superincumbent stratum after exploitation and again form the possibility of balance after disrumpent feelings, is always one of major subjects of research rock pressure [in mine.For make the down-hole complexity again invisible top board structure change and allow everyone understand, main method is to make the static schematic diagram of superincumbent stratum and Structural Static states model at present.But these class methods can't be illustrated ore deposit and press the process manifested; Few electric automatization model not only is difficult to reappear the concrete change procedure of superincumbent stratum, involves great expense simultaneously, is easy to damage etc.
Summary of the invention
The technical problem to be solved in the present invention is to overcome existing to illustrate the shortcoming of superincumbent stratum three with characteristics of motion variation model, and what a kind of simple in structure, easy and simple to handle, circulation demonstrating was provided illustrates the comprehensive simulating teaching demonstration system model of superincumbent stratum three with the characteristics of motion.
A kind of Simulation Demo System model that discloses superincumbent stratum three band motions, described model comprises coal seam module, caving zone module, fissure zone module, bending subsidence band module and the strong stratum module be stacked from bottom to up successively;
Wherein, the middle part of described coal seam module is goaf, and described goaf comprises air bag, and the height after described airbag aeration is identical with the height of described coal seam module; Described caving zone module is staggeredly stacked and is formed by least 20 spoil modules; Described fissure zone module comprises two the first fissure zone modules in two ends and at least 5 second fissure zone modules on the top in described goaf, top or bottom-hinged between described the first fissure zone module and described the second fissure zone module and a plurality of described the second fissure zone module, described articulated manner is set to: when described the second fissure zone module bottom does not have anchorage force, and free subsidence under the effect of self gravitation; Described bending subsidence band module is made by the flexible material of having of softness, the weight that is provided with 0.5~1kg in the centre position of described bending subsidence band block length direction.
The Simulation Demo System model of announcement superincumbent stratum three band motions of the present invention, the length in wherein said goaf accounts for the 2/3-3/4 of whole described coal seam module, shared ratio is too little, be difficult to fully show the roof caving scene, shared ratio is too large, can't give in top board and not be caving partly supporting power is provided, even can form the phenomenon of whole sinking, can't represent the model effect.
The Simulation Demo System model of announcement superincumbent stratum three band motions of the present invention, wherein said the second fissure zone module is 6, the articulated manner of described fissure zone module is specially: the top of described the first fissure zone module that the 1st and the 6th described the second fissure zone module are adjacent from left to right is hinged, the top of the 2nd described fissure zone module previous described fissure zone module with it is hinged, the bottom-hinged of described the 3rd, 5 and 6 described the second fissure zone modules previous described fissure zone module with it.
The Simulation Demo System model of announcement superincumbent stratum three band motions of the present invention, wherein said strong stratum module is made by timber or PVC material; Described bending subsidence band module is sponge; Described fissure zone module is made by timber or PVC material; Described spoil module is made by timber.
The Simulation Demo System model of announcement superincumbent stratum three band motions of the present invention, the wherein said model casing that lacks top section that also comprises, for holding described model.
The Simulation Demo System model of announcement superincumbent stratum three band motions of the present invention, wherein said model casing is made by transparent plastic.
The Simulation Demo System model of announcement superincumbent stratum three band motions of the present invention, wherein said air bag comprises utricule and the snorkel be communicated with it, the rear side of described model casing is provided with through hole, described snorkel passes from described through hole, and is provided with the inflation/deflation switch on the described snorkel passed.
The Simulation Demo System model of announcement superincumbent stratum three band motions of the present invention, wherein in the both sides in described goaf, near module place, described coal seam, be provided with respectively hydraulic module and damper modules, the height of described hydraulic module and described damper modules is with described coal seam module.
The Simulation Demo System model of announcement superincumbent stratum three band motions of the present invention, wherein said hinged for passing through gemel connection.
The Simulation Demo System model of announcement superincumbent stratum three band motions of the present invention, wherein each described spoil module is of a size of 6cm * 18cm * 4cm; Described model casing is of a size of 95cm * 20cm * 60cm; Described coal seam module height is 15cm; Described caving zone module height is 12cm, by 3 layers of spoil module proper alignment, formed, layer is totally 44 described spoil modules that are staggeredly stacked, described fissure zone module height is 10cm, described bending subsidence band module height is 17cm, the dimension of object of the heart of being placed in one is 6cm * 10cm * 4cm, and the height of described strong stratum module is 6cm; Described coal seam block length is 80cm, and described goaf length is 71cm.
The Simulation Demo System model difference from prior art that the present invention discloses superincumbent stratum three band motions is:
The Simulation Demo System model of announcement superincumbent stratum three band motions of the present invention can be demonstrated genesis and the evolution process of superincumbent stratum " three bands "; Simple in structure, easy to operate, equipment cost is low, intuitively true to nature; While easy accessibility, circulation demonstrating.
Simulation Demo System model below in conjunction with accompanying drawing to announcement superincumbent stratum three band motions of the present invention is described further.
The accompanying drawing explanation
Fig. 1 is superincumbent stratum three band motion schematic diagram during working face mining during reality is produced;
Superincumbent stratum three band motion schematic diagram when the Simulation Demo System model demonstration workplace that Fig. 2 is announcement superincumbent stratum three band motions of the present invention is unminded;
Superincumbent stratum three band motion schematic diagram during Simulation Demo System model demonstration working face mining that Fig. 3 is announcement superincumbent stratum of the present invention three band motions;
The structural representation of the Simulation Demo System model air bag that Fig. 4 is announcement superincumbent stratum three band motions of the present invention.
Embodiment
As shown in Figure 1, reality is produced in the process of exploitation colliery, the superincumbent stratum of mining area can deform, mobile and destruction, again form new balance after destruction, the present invention is directed to its complexity again invisible top board structure a kind of Simulation Demo System model that discloses the motion of superincumbent stratum three band is provided.
Embodiment 1
In Figure 2-4, the Simulation Demo System model of announcement superincumbent stratum three band motions of the present invention comprises coal seam module 5, caving zone module 4, fissure zone module 3, bending subsidence band module 2 and the strong stratum module 1 be stacked from bottom to up successively; The middle part of described coal seam module 5 is goaf 16, the length in described goaf 16 accounts for the 2/3-3/4 of whole described coal seam module, can adjust as required, shared ratio is too little, be difficult to fully show the roof caving scene, shared ratio is too large, and can't give in top board not to be caving partly provides supporting power, even can form the phenomenon of whole sinking, can't represent the model effect; Described goaf 16 comprises air bag 9, and the height after described air bag 9 inflations is identical with the height of described coal seam module 5; Described caving zone module 4 is formed by least 20 spoil module 7 alternative arrangements.
Described fissure zone module 3 comprises two the first fissure zone module 17 and at least 5 the second fissure zone modules 12 in 16 top, described goaf in two ends, top or bottom-hinged between described the first fissure zone module 17 and described the second fissure zone module 12 and a plurality of described the second fissure zone module 12, described articulated manner is set to reach any articulated manner of following purpose: when described the second fissure zone module 12 bottoms do not have anchorage force, and free subsidence under the effect of self gravitation.Hinged being preferably by hinge 10 of the present invention connects.
Described bending subsidence band module 2 is made by the flexible material of having of softness, be provided with the object 15 of 0.5~1kg in the centre position of described bending subsidence band module 2 length directions, can be placed on its top or be arranged on section in it, can produce gravity to described bending subsidence band module 2, when not having anchorage force, described bending subsidence band module 2 bottoms make it produce flexural deformation, the variation produced with the bending subsidence band in simulating reality, the 1kg of preferred described object 15, be arranged on described bending subsidence band module 2 inside, be in center; Described bending subsidence band module 2 is made for the soft flexible material that has, preferably sponge.
Described strong stratum module 1 is made by harder material, preferably by timber or PVC material, is made; Described fissure zone module 3 is prepared from by heavier material, and preferably timber or PVC material are made; Described spoil module 7 is made by harder material, and preferably timber, have larger quality, when its bottom, during without anchorage force, under the effect of self gravitation, sinks.
System model of the present invention also comprises the model casing 11 that lacks top, for holding described model, preferably by transparent plastic, is made.The snorkel 14 that described air bag 9 comprises utricule and is communicated with it, the rear side of described model casing 11 is provided with through hole, and described snorkel 14 passes from described through hole, and is provided with inflation/deflation switch 13 on the described snorkel 14 passed.Be provided with respectively hydraulic module 6 and damper modules 8 in 16 both sides, described goaf near module 5 places, described coal seam, the height of described hydraulic module 6 and described damper modules 8 is with described coal seam module 5, for hydraulic support and the baffle plate for supporting the rock stratum, top of simulating reality exploitation, make demonstration more vivid.
In the present embodiment, adopt following optimal way:
Articulated manner is specially: described the second fissure zone module 12 is 6, described fissure zone module 3 from left to right the 1st and the 6th described the second fissure zone module 12 hinged with the top of the described first fissure zone module 17 of both sides, the top of the 2nd described the second fissure zone module 12 previous described second fissure zone module 12 with it is hinged, the bottom-hinged of described the 3rd, 5 and 6 described the second fissure zone modules 12 previous described second fissure zone module 12 with it.
Each described spoil module 7 is of a size of 6cm * 18cm * 4cm; Described model casing 11 is of a size of 95cm * 20cm * 60cm; Described coal seam module 5 is highly 15cm; Described caving zone module height is 12cm, by 3 layers of spoil module 7 proper alignment, formed, layer is totally 44 described spoil modules 7 that are staggeredly stacked, described fissure zone module 3 is highly 10cm, described bending subsidence band module 2 is highly 17cm, the object 15 of the heart of being placed in one is of a size of 6cm * 10cm * 4cm, and the height of described strong stratum module 1 is 6cm; Described coal seam module 5 length are 80cm, and goaf 16 length are 71cm.The size related in the present invention, be all to adopt length * wide * high mode to embody, and wherein, take Fig. 2 as example, and left and right length is for long, and front and back length is wide, and lower-upper length is high.
Described coal seam module 5 means unquarried coal seam, the goaf 16 at its middle part means the space of exploiting, described air bag 9 means the coal seam of exploiting, when described air bag 9 is full of gas, mean all coal seams module 5 and unmind, on caving zone module 4, fissure zone module 3, bending subsidence band module 2 and the strong stratum band module 1 covered all in the neatly deformation state not shown in Fig. 2, modules is all in horizontality.The inflation/deflation switch 13 of air bag 9 shown in turn on, shown in air bag 9 venting expose shown in goaf 16, mean former complete by exploitation in 16 coal seam, goaf, now in shown in spoil module 7 in the caving zone module 4 on top, goaf all under the self gravitation effect, be scattered at random in described goaf 16, 12 bottoms, described the second fissure zone goaf in described fissure zone module 3 have lost anchorage force, under the self gravitation effect, sink, drop on the top of the spoil module 7 that is positioned at described goaf 16, be bent downwardly distortion under the effect of object 15 weight of section within it of described bending subsidence band module 2, described system model forms state as shown in Figure 3, be used for the variation of the superincumbent stratum after the exploitation of reality as shown in Figure 1 of simulation.After demonstration finishes, all modules except coal seam module 5 and air bag are taken out from described model casing 11, the snorkel of described air bag 9 14 is connected with aerating device, and after being full of gas to described air bag 9, by structure as shown in Figure 2, lay from level to level stackingly to get on again, be reduced into the situation before unminding, so recycle.The modules of system should be adjacent to the sidewall of described model casing 11 back when putting, and starts to lay from bottom, more upwards lays layer by layer.
The Simulation Demo System model of announcement superincumbent stratum three band motions of the present invention can be demonstrated genesis and the evolution process of superincumbent stratum " three bands "; Simple in structure, easy to operate, equipment cost is low, intuitively true to nature; While easy accessibility, circulation demonstrating.
Above-described embodiment is described the preferred embodiment of the present invention; not scope of the present invention is limited; design under the prerequisite of spirit not breaking away from the present invention; various distortion and improvement that those of ordinary skills make technical scheme of the present invention, all should fall in the definite protection domain of the claims in the present invention book.

Claims (10)

1. one kind is disclosed the Simulation Demo System model that superincumbent stratum three bands move, and it is characterized in that: described model comprises coal seam module (5), caving zone module (4), fissure zone module (3), bending subsidence band module (2) and the strong stratum module (1) be stacked from bottom to up successively;
Wherein, the middle part of described coal seam module (5) is goaf (16), and described goaf (16) comprise air bag (9), and the height after described air bag (9) inflation is identical with the height of described coal seam module (5); Described caving zone module (4) is staggeredly stacked and is formed by least 20 spoil modules (7); Described fissure zone module (3) comprises two the first fissure zone modules (17) in two ends and at least 5 second fissure zone modules (12) on the top in described goaf (16), top or bottom-hinged between described the first fissure zone module (17) and described the second fissure zone module (12) and a plurality of described the second fissure zone module (12), described articulated manner is set to: when described the second fissure zone module (12) bottom does not have anchorage force, and free subsidence under the effect of self gravitation; Described bending subsidence band module (2) is made by the flexible material of having of softness, is provided with the object (15) of 0.5~1kg in the centre position of described bending subsidence band module (2) length direction.
2. the Simulation Demo System model that announcement superincumbent stratum three bands according to claim 1 move, it is characterized in that: the length of described goaf (16) accounts for 2/3~3/4 of whole described coal seam module (5).
3. the Simulation Demo System model that announcement superincumbent stratum three bands according to claim 1 and 2 move, it is characterized in that: described the second fissure zone module (12) is 6, the articulated manner of described fissure zone module (3) is specially: the top of described the first fissure zone module (17) that the 1st and the 6th described the second fissure zone module (12) are adjacent from left to right is hinged, the top of the 2nd described the second fissure zone module (12) previous described second fissure zone module (12) with it is hinged, the described the 3rd, the bottom-hinged of 5 and 6 described the second fissure zone modules (12) previous described second fissure zone module (12) with it.
4. the Simulation Demo System model that announcement superincumbent stratum three bands according to claim 3 move, it is characterized in that: described strong stratum module (1) is made by timber or PVC material; Described bending subsidence band module (2) is sponge; Described fissure zone module (3) is made by timber or PVC material; Described spoil module (7) is made by timber.
5. the Simulation Demo System model of announcement superincumbent stratum three band motions according to claim 4, is characterized in that: also comprise the model casing (11) that lacks top section, for holding described model.
6. the Simulation Demo System model that announcement superincumbent stratum three bands according to claim 5 move, it is characterized in that: described model casing (11) is made by transparent plastic.
7. the Simulation Demo System model moved according to described announcement superincumbent stratum three bands of claim 5 or 6, it is characterized in that: the snorkel (14) that described air bag (9) comprises utricule and is communicated with it, the rear side of described model casing (11) is provided with through hole, described snorkel (14) passes from described through hole, and is provided with inflation/deflation switch (13) on the described snorkel (14) passed.
8. the Simulation Demo System model that announcement superincumbent stratum three bands according to claim 1 move, it is characterized in that: hydraulic module (6) and damper modules (8) are located to be provided with respectively near described coal seam module (5) in the both sides in described goaf (16), and the height of described hydraulic module (6) and described damper modules (8) is with described coal seam module (5).
9. the Simulation Demo System model of announcement superincumbent stratum three band motions according to claim 3, is characterized in that: described hinged for connecting by hinge (10).
10. the Simulation Demo System model that announcement superincumbent stratum three bands according to claim 7 move, it is characterized in that: each described spoil module (7) is of a size of 6cm * 18cm * 4cm; Described model casing (11) is of a size of 95cm * 20cm * 60cm; Described coal seam module (5) is highly 15cm; Described caving zone module height is 12cm, by 3 layers of spoil module (7) proper alignment, formed, layer is totally 44 described spoil modules (7) that are staggeredly stacked, described fissure zone module (3) is highly 10cm, described bending subsidence band module (2) is highly 17cm, the object (15) of the heart of being placed in one is of a size of 6cm * 10cm * 4cm, and the height of described strong stratum module (1) is 6cm; Described coal seam module (5) length is 80cm, and goaf (16) length is 71cm.
CN201310432135.0A 2013-09-22 2013-09-22 Simulation demonstration system model for revealing moving of overlying rock layer at coal goaf Expired - Fee Related CN103489362B (en)

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CN105510554A (en) * 2016-01-07 2016-04-20 中国矿业大学(北京) Steeply inclined coal seam horizontal segmentation full-mechanized caving mining simulation experiment table and method
CN106289992A (en) * 2016-08-31 2017-01-04 河北工程大学 Rock beam equal compressive strain rupture test device
CN108682256A (en) * 2018-05-14 2018-10-19 蒋嫚 A kind of energy saving protective hydromining coal simulated experiment platform based on fish shape water-bearing layer simulation system
CN108877465A (en) * 2018-07-18 2018-11-23 河南理工大学 A kind of teaching threedimensional model for simulating coal mine goaf top plate rock movement rule
CN108877465B (en) * 2018-07-18 2023-10-17 河南理工大学 Teaching three-dimensional model for simulating coal mine goaf roof rock stratum movement law
CN111382504A (en) * 2020-02-28 2020-07-07 中国矿业大学 Coal seam mining overburden settlement state identification method
CN112505290A (en) * 2020-11-13 2021-03-16 山东科技大学 Goaf grouting subsidence reduction simulation experiment device and method thereof
CN114755391A (en) * 2022-04-15 2022-07-15 长沙矿山研究院有限责任公司 Method for simulating complex goaf of mine based on physical model test

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