CN108766178A - A kind of large-inclination-angle coal bed holder and Surrounding Rock System four-dimension physical simulation experiment platform - Google Patents
A kind of large-inclination-angle coal bed holder and Surrounding Rock System four-dimension physical simulation experiment platform Download PDFInfo
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- CN108766178A CN108766178A CN201810541793.6A CN201810541793A CN108766178A CN 108766178 A CN108766178 A CN 108766178A CN 201810541793 A CN201810541793 A CN 201810541793A CN 108766178 A CN108766178 A CN 108766178A
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Abstract
The invention discloses a kind of large-inclination-angle coal bed holders and Surrounding Rock System four-dimension physical simulation experiment platform, including outer fixed frame and the fixed frame crossbeam being located in the middle part of outer fixed frame, and it is located at the rotating stand and rotational fuel tank of outer fixed frame bottom and supporting loading frame member；It is equipped with simulation coal seam in loading frame, several row's top plate load cylinders are set at the top of loading frame, sets several upper end load cylinders and holder load cylinder respectively in the right in simulation coal seam, the left side sets mobile stope position oil cylinder；It is equipped with arc-shaped guide rail on outer fixed frame, is exerted a force to loading frame by rotational fuel tank, loading frame changes along outer fixed frame realizes stable rotation；By adjusting top plate load cylinder and mobile stope position oil cylinder so that top plate load cylinder remains that vertical direction loads under loading frame.The platform provides favourable conditions to simulate the working condition of the holder in large-inclination-angle coal bed four dimensional scaffolds-Surrounding Rock System with instability status research.
Description
Technical field
The present invention relates to a kind of mine seam mining experimental provision, especially a kind of large-inclination-angle coal bed holder and Surrounding Rock System
Four-dimensional physical simulation experiment platform.
Background technology
It is well known that the large-inclination-angle coal bed complexity for moving towards coal wall surrouding rock stress distribution results in, " holder-encloses
Rock " system by " stable state " system at " unstable state " system, the control by holder in general sense by working resistance to top plate
System extends to holder and had not only needed to control roof and floor by working resistance, but also needs through working resistance and architectural characteristic
Combination the stability of itself and " holder-country rock " system is controlled.Moreover, it bows oblique work in high inclination-angle puppet
Face, holder is acted on by goaf spoil along pseudo- tilted direction of bowing, while holder is contacted with front coal wall, is made " holder-country rock "
System stability is more complicated, results in large inclination working surface support stability and is difficult to control.
Invention content
To solve drawbacks described above existing in the prior art, the purpose of the present invention is to provide a kind of large-inclination-angle coal bed " branch
Frame-country rock " system four-dimension physical simulation experiment platform, the platform can simulate in large-inclination-angle coal bed four-dimensional " holder-country rock " system
Holder working condition and instability status.It is carried effectively to study four-dimensional " holder-country rock " system stability of large inclination working surface
Favourable conditions are supplied.There is prodigious facilitation for studying large-inclination-angle coal bed safety and high efficiency.
The present invention is realized by following technical proposals.
A kind of large-inclination-angle coal bed holder and Surrounding Rock System four-dimension physical simulation experiment platform, including outer fixed frame and be located at
Fixed frame crossbeam in the middle part of outer fixed frame, and it is located at the rotation branch of outer fixed frame bottom and supporting loading frame member
Seat and rotational fuel tank；Be equipped in loading frame simulation coal seam, set at the top of loading frame several row's angles or so it is adjustable, plus
The top plate load cylinder being downloaded on simulation coal seam sets the adjustable upper end of several angles or more respectively in the right in simulation coal seam
Load cylinder and holder load cylinder, the left side set mobile stope position oil cylinder；
It is equipped with arc-shaped guide rail on outer fixed frame, is exerted a force to loading frame by rotational fuel tank, passes through loading frame edge
0~60 ° of range of outer fixed frame realizes stable rotation；By adjusting and moving stope position oil cylinder so that top plate loads
Oil cylinder remains that vertical direction is loaded in 0~60 ° of range of loading frame.
For above-mentioned technical proposal, the present invention also has further preferred scheme：
Further, the top plate load cylinder is applied to by bearing plate on the top plate above simulation coal seam, below top plate
Several holders are additionally provided with, several holders simulate along top plate perpendicular separation parallelly distribute on and are equipped with bottom plate, bottom plate below coal seam and holder
The inclined angular distribution of frame bottom along loading frame.
Further, the top plate load cylinder is applied directly to by bearing plate on simulation coal seam, if below bearing plate
Heavenly Stems and Earthly Branches frame is directly placed at frame bottom in loading frame along bearing plate perpendicular separation parallelly distribute on, holder.
Further, arch is equipped with several row's top plate load cylinders in loading frame, be equipped on the right side of loading frame with it is every
Arrange the corresponding upper end load cylinder of top plate load cylinder and holder load cylinder；Each load cylinder and each row's top plate load oil
The top plate or holder of cylinder connection connect, and the oil cylinder bearing plate at holder rear is hinged on holder load cylinder.
Further, the fixed frame crossbeam being located in the middle part of outer fixed frame is respectively distributed with one in upper and lower four direction
Root, outer fixed frame are made of Vierendeel girder of the top with hang plate, are collectively formed by outer fixed frame and fixed frame crossbeam
Experiment porch frame.
Further, it sets on the outer fixed frame there are two arc-shaped guide rail, is set on two opposite frames of loading frame
There is corresponding guide rail roller bearing, arcuately guide rail moves loading frame guide rail roller bearing.
The beneficial effects of the present invention are：
Apparatus of the present invention real simulation stand under load feature of large-inclination-angle coal bed fully-mechanized mining working holder, for research " top plate-
Frame-bottom plate " and the dynamic process of " spoil-holder-coal wall " both direction upper bracket unstability create condition, to disclose high inclination-angle
Coal seam fully-mechanized mining working " holder-country rock " four-dimension mechanism of action provides safeguard.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and is constituted part of this application, not
Inappropriate limitation of the present invention is constituted, in the accompanying drawings：
Fig. 1 is front view of the present invention；
Fig. 2 (a)-Fig. 2 (c) is respectively the partial enlarged view at B, C, E, D, F of Fig. 1；
Fig. 3 is the side view of Fig. 1.
In figure：1, outer fixed frame；2, fixed frame crossbeam；3, rotating stand；4, rotational fuel tank；5, guide rail is rotated；6,
Guide rail roller bearing；7, loading frame；8, upper end load cylinder；9, top plate load cylinder；10, loading plate；11, top plate；12, it props up
Frame；13, stope position oil cylinder；14, bottom plate；15, oil cylinder loading plate；16, holder load cylinder；17, coal seam is simulated.
Specific implementation mode
Below in conjunction with attached drawing and specific embodiment, the present invention will be described in detail, herein illustrative examples of the invention
And explanation is used for explaining the present invention, but it is not as a limitation of the invention.
As shown in Fig. 1,2 (a)-(c), Fig. 3, the large-inclination-angle coal bed holder of the present invention and Surrounding Rock System four-dimension physical simulation experiment
Platform, including outer fixed frame 1 are located at the fixed frame crossbeam 2 at 1 middle part of outer fixed frame, are located at 1 middle part of outer fixed frame
Fixed frame crossbeam 2 is respectively distributed with one in upper and lower four direction, and outer fixed frame 1 is carried the Vierendeel girder structure of hang plate by top
At collectively forming experiment porch frame by outer fixed frame 1 and fixed frame crossbeam 2.Arc there are two being set on outer fixed frame 1
Shape guide rail 5 is equipped with corresponding guide rail roller bearing 6 on 7 two opposite frames of loading frame, and 7 guide rail roller bearing 6 of loading frame is arcuately
Guide rail 5 moves.
Further include the rotating stand 3 and rotational fuel tank 4 for being located at 1 bottom of outer fixed frame and the rotation of supporting loading frame 7,
It is equipped with simulation coal seam 17 in loading frame 7, sets that several row's angles or so are adjustable, are loaded into simulation coal at the top of loading frame 7
Top plate load cylinder 9 on layer 17 sets the adjustable upper end load of several angles or more respectively in the right in simulation coal seam 17
Oil cylinder 8 and holder load cylinder 16, the left side set mobile stope position oil cylinder 13；It sets on outer fixed frame 1 and is led there are two arc
Rail 5 is equipped with three pairs of guide rail roller bearings 6 on 7 two opposite frames of loading frame, is exerted a force to loading frame 7 by rotational fuel tank 4,
By loading frame 7 stable rotation is realized along 0~60 ° of range of outer fixed frame；By adjusting and moving stope position oil
Cylinder 13 so that top plate load cylinder 9 remains that vertical direction is loaded when loading frame 7 is in 0~60 ° of range.
As shown in Figure 1, arch is equipped with 3 row's angles or so adjustable top plate load cylinder 9 in loading frame 7, often arrange
15,9 lower section of top plate load cylinder is equipped with bearing plate 10, and 10 lower section of bearing plate is manually equipped with top plate 11, top plate load cylinder 9
It is applied to by bearing plate 10 on the top plate 11 of 17 top of simulation coal seam, 11 lower section of top plate is additionally provided with several holders 12, several
Frame 12 is along 11 perpendicular separation parallelly distribute on of top plate；12 lower part of holder is the bottom plate 14 being manually laid with；Bottom plate 14 is along loading frame 7
The inclined angular distribution of frame bottom.7 right side of loading frame is equipped with 3 angles or more adjustable upper end load cylinder 8 and holder
Load cylinder 16, left side are equipped with mobile stope position oil cylinder 13；What each load cylinder 8 was connect with each row's top plate load cylinder 9
Top plate 11 connects, and the oil cylinder bearing plate 15 at holder rear is hinged on holder load cylinder 16, by top plate 11 and holder 12 and bottom
Plate 14 constitutes stope space.
Embodiment：
When being tested, loading frame 7 is horizontal positioned, artificial to be laid with top plate 11 and bottom plate 14 and simulation coal seam 17, paving
If after the completion, loading frame 7 to be gone to the angle of needs, the load of top plate load cylinder 9 is adjusted by stope position oil cylinder 13
Angle makes it keep vertical load.
Coal seam is excavated, holder 12 is arranged in stope, both very can tiltedly be arranged, it also can pseudo- tiltedly arrangement.It is loaded by top plate
Oil cylinder 9, upper end load cylinder 8 and holder load cylinder 16 are loaded, and top plate 11 and bottom plate 14, above-mentioned top can not be also laid with
Plate load cylinder 9 is acted directly on by bearing plate 10 on simulation coal seam 17, and holder 12 is directly placed at 7 inside casing bottom of loading frame
Portion.
One is given below by concrete structure principle to further illustrate the present invention.
(1) internal stope space
Stope space is rectangular box body, is spliced by 2~3 isometric narrow boards in front of babinet, convenient for simulation material
The progress of the work such as filling and the advance of the face.
Stope should actually reach 30cm along advance of the face direction, and (3~5 cycles of the advance of the face, single depth are 60
~100mm), along inclined direction reach 90cm (about 10~15 frame holder), the height of stope should be in 10~15cm ranges.It adopts inside
Field bulk：90×30×75cm；
(2) loading frame
Top plate load cylinder arranges that Preliminary design is 3 rows, single 15, amounts to 45.Working face upper end load cylinder 3
It is a；Holder load cylinder；Mobile stope position oil cylinder 1；Load cylinder angle is adjustable, ensures that top plate load cylinder is being tested
Frame angle can remain that vertical direction loads when being 0~60 ° of range.Ensure upper end load cylinder in experiment frame angle
It is loaded with bottom plate parallel direction for that can be remained when 0~60 ° of range.Goaf stope position oil cylinder is pushed through in working face
Afterwards, can with bottom plate parallel plane in holder application is acted on, and oil cylinder angle passes through flexible pass in 0~60 ° of range
Power bar is connect with rotatable force rectangular slab, effect of the simulation goaf spoil to holder.Concentration, list can be used when loading in top plate
Only control mode, can simulated implementation roof weighting.
3 load cylinders of working face upper end can both load simultaneously, can also realize single load, can control and realize top plate
Pressure.Upper end load cylinder is using T-shaped plate power transmission (Fig. 2 (b) shown in), not only constrained effect, but also can inside power transmission.Oil cylinder adds
It carries power and can reach 0.125MPa.Inner frame loading frame size：Long * wide * high=1.65m*0.5m*1.05m.
(3) fixed frame
Experiment frame angle is stepless adjustable within the scope of 0~60 °, has stabilizing control system, need to be convenient for test and personnel behaviour
Make.Interior fixed outer framework ensures that interior loading frame is stablized in angle rotary course by rotation guide rail.Outer fixed frame should also have
Standby observation ancillary equipment, such as：Ladder, platform etc. for personnel's observation.Outer fixed frame size：Long * wide * high=2m*0.8m*
2m。
The invention is not limited in above-described embodiments, on the basis of technical solution disclosed by the invention, the skill of this field
For art personnel according to disclosed technology contents, one can be made to some of which technical characteristic by not needing performing creative labour
A little to replace and deform, these are replaced and deformation is within the scope of the invention.
Claims (6)
1. a kind of large-inclination-angle coal bed holder and Surrounding Rock System four-dimension physical simulation experiment platform, it is characterised in that：Including outer fixation
Frame (1) and the fixed frame crossbeam (2) being located in the middle part of outer fixed frame (1), and be located at outer fixed frame (1) bottom and prop up
Support the rotating stand (3) and rotational fuel tank (4) that loading frame (7) rotates；Simulation coal seam is equipped in loading frame (7)
(17), the top plate load cylinder that several row's angles or so are adjustable, are loaded into simulation coal seam (17) is set at the top of loading frame (7)
(9), the adjustable upper end load cylinder (8) of several angles or more and holder load are set respectively in the right of simulation coal seam (17)
Oil cylinder (16), the left side set mobile stope position oil cylinder (13)；
It is equipped with arc-shaped guide rail (5) on outer fixed frame (1), is exerted a force to loading frame (7) by rotational fuel tank (4), by adding
It carries frame (7) and realizes stable rotation along 0~60 ° of range of outer fixed frame；By adjusting top plate load cylinder (9) and movement
Stope position oil cylinder (13) so that top plate load cylinder (9) remains vertical in (7) 0~60 ° of ranges of loading frame
Direction loads.
2. large-inclination-angle coal bed holder according to claim 1 and Surrounding Rock System four-dimension physical simulation experiment platform, feature
It is：The top plate load cylinder (9) is applied to by bearing plate (10) on the top plate (11) above simulation coal seam (17), top plate
(11) lower section is additionally provided with several holders (12), and several holders (12) simulate coal seam along top plate (11) perpendicular separation parallelly distribute on
(17) and below holder (12) it is equipped with bottom plate (14), bottom plate (14) is along the inclined angular distribution of loading frame (7) interior frame bottom.
3. large-inclination-angle coal bed holder according to claim 1 and Surrounding Rock System four-dimension physical simulation experiment platform, feature
It is：The top plate load cylinder (9) is applied directly to by bearing plate (10) in simulation coal seam (17), below bearing plate (10)
Several holders (12) along bearing plate (10) perpendicular separation parallelly distribute on, holder (12) is directly placed at loading frame (7) inside casing
Bottom.
4. flat according to the large-inclination-angle coal bed holder of claim 2-3 any one of them and Surrounding Rock System four-dimension physical simulation experiment
Platform, it is characterised in that：It is equipped with several row's top plate load cylinders (9), loading frame (7) right side in loading frame (7) interior arch
Equipped with upper end load cylinder (8) corresponding with every row's top plate load cylinder (9) and holder load cylinder (16)；Each load oil
The top plate (11) or holder (12) that cylinder (8) is connect with each row's top plate load cylinder (9) connect, hinged on holder load cylinder (16)
There is the oil cylinder bearing plate (15) at holder rear.
5. large-inclination-angle coal bed holder according to claim 1 and Surrounding Rock System four-dimension physical simulation experiment platform, feature
It is：The fixed frame crossbeam (2) being located in the middle part of outer fixed frame (1) is respectively distributed with one in upper and lower four direction, outside
Fixed frame (1) is made of Vierendeel girder of the top with hang plate, common by outer fixed frame (1) and fixed frame crossbeam (2)
Constitute experiment porch frame.
6. large-inclination-angle coal bed holder according to claim 1 and Surrounding Rock System four-dimension physical simulation experiment platform, feature
It is：It is set on the outer fixed frame (1) there are two arc-shaped guide rail (5), is equipped on (7) two opposite frames of loading frame
Corresponding guide rail roller bearing (6), arcuately guide rail (5) is mobile for loading frame (7) guide rail roller bearing (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810541793.6A CN108766178B (en) | 2018-05-30 | 2018-05-30 | Four-dimensional physical simulation experiment platform for large-dip-angle coal seam support and surrounding rock system |
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|---|---|---|---|
| CN201810541793.6A CN108766178B (en) | 2018-05-30 | 2018-05-30 | Four-dimensional physical simulation experiment platform for large-dip-angle coal seam support and surrounding rock system |
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| CN108766178B CN108766178B (en) | 2023-05-16 |
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| CN110120175A (en) * | 2019-05-29 | 2019-08-13 | 贾铁 | A kind of more inclination angle coal seams physical simulation experiment device |
| CN111337652A (en) * | 2020-04-22 | 2020-06-26 | 贵州理工学院 | Experimental device for be used for simulating water-retaining exploitation effect |
| CN112697596A (en) * | 2020-11-28 | 2021-04-23 | 贵州大学 | Movable multifunctional coal and rock stratum analog simulation experiment table |
| CN113029794A (en) * | 2021-03-08 | 2021-06-25 | 中国矿业大学 | Three-dimensional similarity simulation device and method for gangue self-sliding filling in goaf of steep coal seam |
| CN114924055A (en) * | 2022-05-16 | 2022-08-19 | 西安科技大学 | Bidirectional angle-adjustable three-dimensional physical similarity simulation experiment platform and experiment method thereof |
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