CN104237462A - Steep inclined coal bed gangue filling test device and test method - Google Patents
Steep inclined coal bed gangue filling test device and test method Download PDFInfo
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- CN104237462A CN104237462A CN201410440813.2A CN201410440813A CN104237462A CN 104237462 A CN104237462 A CN 104237462A CN 201410440813 A CN201410440813 A CN 201410440813A CN 104237462 A CN104237462 A CN 104237462A
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Abstract
The invention discloses a steep-dipping coal bed gangue filling test device and a test method. A box body is obliquely arranged, an included angle formed between a lower supporting plate and a horizontal line is 45 to 70 degrees, a top plate and a soleplate are arranged above the lower supporting plate, an arrangement space is formed between the top plate and the soleplate, a simulation coal bed block is arranged in the arrangement space, a goaf formed after the coal bed block is excavated is filled with simulation gangue, a filling opening is formed in the upper end of the arrangement space, and an excavation opening is formed in the lower end of the arrangement space; the box body between the top plate and an upper cover plate is filled with simulation rock layer particles, and a simulation rock layer block is arranged on the upper surfaces of the simulation rock layer particles. The test process is photographed by utilizing a high-speed camera, so that the description of the test phenomenon can be facilitated; different coal bed angles can be realized by adjusting the height of four telescopic supports, different coal bed thicknesses can be realized by adjusting the height of a left adjusting plate and a right adjusting plate, and different top plate and soleplate types can be realized by selecting different materials of the top plate and the soleplate.
Description
Technical field
The present invention relates to a kind of steeply pitching seam waste filling test unit and test method.
Background technology
China's steeply pitching seam annual production accounts for the 8%-10% of national coal total amount, and ratio cumulative year after year.Because steeply pitching seam tax is deposited, angle is large, complicated geological, roof and floor easily slide and be caving, and there is more potential safety hazard aborning, and production practice is complicated, constrains the safety and high efficiency of steeply pitching seam.
For steeply pitching seam occurrence condition, utilize spoil to move under Gravitative Loads and filling is carried out to the goaf of steeply pitching seam, not only effectively can slow down Seam Roof And Floor motion, reduce the distortion of roof and floor, ensure the safe working of workplace, and ground discharge refuse amount can be reduced, reducing environmental pollution, having great importance for realizing the exploitation of mine safety efficient green.
Specify the migration rule of spoil and the influence factor of filling effect in goaf, for raising Gob Filling with Waste rate, effectively control Seam Roof And Floor motion and have great importance.But because condition of coal seam occurrence is complicated, and be full of spoil in goaf, monitoring instrument cannot be installed in inside, and the migration process of spoil in goaf has invisible, untouchability, for theoretical research and field observation bring very large difficulty.Therefore, reproduce exploitation stowing operation by Equivalent Materials Testing, become a kind of important means of its inherent law of research.Because steeply pitching seam angle of inclination is comparatively large, difficulty piled up by model, and material easily collapses, and the reliability of test findings also can not be guaranteed, and changes testing program and need to re-establish model and test, and time and effort consuming, workload are large.Therefore, prior art needs further improvement and develops.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of steeply pitching seam waste filling test unit and test method, to analyze and research to steeply-inclined seam mining goaf spoil migration rule and filling effect influence factor.
For solving the problems of the technologies described above, the present invention program comprises:
A kind of steeply pitching seam waste filling test unit, it comprises casing, wherein, casing comprises left adjustment plate, right adjustment plate, front apron, backboard, bottom plate and upper cover plate, casing is for being in tilted layout, angle between bottom plate and horizontal line is 45 °-70 °, top board and base plate is furnished with above bottom plate, arrangement space is formed between top board and base plate, emulation coal seam block is furnished with in this arrangement space, in the goaf formed, be filled with emulation spoil after the block excavation of emulation coal seam, the upper end of this arrangement space is provided with filling mouth, and lower end is provided with excavation mouth; Be filled with emulation rock stratum particle in casing between top board and upper cover plate, the upper surface of emulation rock stratum particle is furnished with emulation rock stratum block.
Described steeply pitching seam waste filling test unit, wherein, above-mentioned top board has been evenly arranged multiple displacement transducer on the surface of upper cover plate side; Excavation anteposition is furnished with a pressure transducer in the upper end of the emulation coal seam block of filling mouth place; The front of casing is furnished with high speed camera, and displacement transducer, pressure transducer, high speed camera all communicate to connect with a data acquisition unit.
Described steeply pitching seam waste filling test unit, wherein, is provided with bayonet lock in above-mentioned excavation mouth, and top board is all connected by being connected gusset with left adjustment plate, right adjustment plate.
Described steeply pitching seam waste filling test unit, wherein, above-mentioned cabinet configuration has supporting mechanism, this supporting mechanism comprises four telescope supports, for adjusting the degree of tilt of casing, wherein two telescope supports are hinged on left adjustment plate, and remaining two telescope supports are hinged on bottom plate.
Use a test method for described steeply pitching seam waste filling test unit, it comprises the following steps:
A, angle between bottom plate and horizontal line are between 45 °-70 °, above-mentioned top board has been evenly arranged multiple displacement transducer on the surface of upper cover plate side, multiple emulation coal seams block is placed in arrangement space, emulation coal seam block connects bunchiness, the upper end being positioned at the emulation coal seam block of filling mouth place is adhesive with pressure transducer, at excavation mouth place placement bayonet lock, for preventing the free landing of emulation coal seam block; Emulation rock stratum particle is filled with in casing between top board and upper cover plate, the upper surface of emulation rock stratum particle flushes with filling mouth position, be furnished with emulation rock stratum block at the upper surface of emulation rock stratum particle, emulation rock stratum particle and emulation rock stratum block constitute the superincumbent stratum in coal seam;
B, remove the emulation coal seam block simulation coal seam excavation of certain length at excavation mouth place, synchronous at filling mouth place filling emulation spoil simulation Gob Filling with Waste; The migration process of high speed camera to emulation spoil is taken pictures, by the distortion of respective sensor record top board and emulation spoil to the acting force of emulation coal seam block; Repeat step B, until emulation coal seam block excavation is complete, goaf filling is complete.
A kind of steeply pitching seam waste filling test unit provided by the invention and test method, the front apron of filling model support is organic glass, can observe intuitively experimental phenomena, and utilize high speed camera to take pictures to process of the test, be conducive to the description of experimental phenomena, by adjusting the height between four telescope supports, different coal seam angles can be realized, by the height of adjustment arranged on left and right sides adjustment plate, different thickness of coal seam can be realized, by selecting different material of roof plate and baseboard material, different roof and floor types can be realized.Corresponding sensor can also be arranged at steeply pitching seam waste filling test unit, and configure the data acquisitions such as computing machine, analytic system, and then steeply-inclined seam mining goaf spoil migration rule and filling effect influence factor are analyzed and researched, and each factor can come by adjustment steeply pitching seam waste filling test unit in Adjustment Tests process, reduces experimentation cost.
Accompanying drawing explanation
Fig. 1 is the main body mechanism schematic diagram of steeply pitching seam waste filling test unit in the present invention;
Fig. 2 is the cross-sectional view of casing in the present invention;
Wherein,
The left adjustment plate of 1-; The right adjustment plate of 2-; 3-front apron; 4-backboard; 5-bottom plate; 6-upper cover plate; 7-top board; 8-emulates coal seam block; 9-emulates spoil; 10-fills mouth; 11-excavates mouth; 12-emulates rock stratum particle; 13-emulates rock stratum block; 14-displacement transducer; 15-pressure transducer; 16-high speed camera; 17-data acquisition unit; 18-bayonet lock; 19-connects gusset; 20-telescope support; 21-regulates screw group; 22-base plate.
Embodiment
The invention provides a kind of steeply pitching seam waste filling test unit and test method, for making object of the present invention, technical scheme and effect clearly, clearly, the present invention is described in more detail below.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The invention provides a kind of steeply pitching seam waste filling test unit, as shown in Figures 1 and 2, it comprises casing, wherein, casing comprises left adjustment plate 1, right adjustment plate 2, front apron 3, backboard 4, bottom plate 5 and upper cover plate 6, casing is for being in tilted layout, angle between bottom plate 5 and horizontal line is 45 °-70 °, top board 7 and base plate 22 is furnished with above bottom plate 5, arrangement space is formed between top board 7 and base plate 22, emulation coal seam block 8 is furnished with in this arrangement space, in the goaf formed, emulation spoil 9 is filled with after emulation coal seam block 8 excavates, the upper end of this arrangement space is provided with fills mouth 10, lower end is provided with excavation mouth 11, be filled with in casing between top board 7 and upper cover plate 6 and emulate rock stratum particle 12, the upper surface of emulation rock stratum particle 12 is furnished with emulation rock stratum block 13.
In another preferred embodiment of the present invention, above-mentioned top board 7 has been evenly arranged multiple displacement transducer 14 on the surface of upper cover plate 6 side; Excavation anteposition is furnished with a pressure transducer 15 in the upper end of the emulation coal seam block 8 of filling mouth place; The front of casing is furnished with high speed camera 16, and displacement transducer 14, pressure transducer 15, high speed camera 16 all communicate to connect with a data acquisition unit 17, and data acquisition unit 17 can be the equipment such as notebook computer, desktop computer.
Further, be provided with bayonet lock 18 in above-mentioned excavation mouth 11, prevent emulation coal seam block 8 free skating from dropping out excavation mouth 11, make test occur error, top board 7 is all connected by being connected gusset 19 with left adjustment plate 1, right adjustment plate 2.
And above-mentioned cabinet configuration has supporting mechanism, this supporting mechanism comprises four telescope supports 20, for adjusting the degree of tilt of casing, and then in adjustment arrangement space, emulate the angle of inclination of coal seam block 8, by the height of adjustment arranged on left and right sides adjustment plate, different thickness of coal seam can be realized, by selecting different material of roof plate and baseboard material, different roof and floor types can be realized, thus more detailed research can be analyzed to steeply-inclined seam mining goaf spoil migration rule and filling effect influence factor.Wherein two telescope supports 20 are hinged on left adjustment plate 1, and remaining two telescope supports 20 are hinged on bottom plate 5, and telescope support 20 can adopt the technological means such as hydraulic support.
Present invention also offers a kind of test method using described steeply pitching seam waste filling test unit, it comprises the following steps:
Angle between bottom plate 5 and horizontal line is between 45 °-70 °, above-mentioned top board 7 has been evenly arranged multiple displacement transducer 14 on the surface of upper cover plate 6 side, multiple emulation coal seams block 8 is placed in arrangement space, emulation coal seam block 8 connects bunchiness, the upper end being positioned at the emulation coal seam block 8 of filling mouth place is adhesive with pressure transducer 15, at excavation, a bayonet lock 18 is placed at mouth 11 place, drops out excavation mouth 11 for preventing emulation coal seam block 8 free skating; Be filled with in casing between top board 7 and upper cover plate 6 and emulate rock stratum particle 12, the upper surface of emulation rock stratum particle 12 flushes with filling mouth 10 position, be furnished with emulation rock stratum block 13 at the upper surface of emulation rock stratum particle 12, emulation rock stratum particle 12 and emulation rock stratum block 13 constitute the superincumbent stratum in coal seam;
The emulation coal seam block 8 removing certain length at excavation mouth 11 place simulates coal seam excavation, and synchronous simulates Gob Filling with Waste at filling mouth 10 place filling emulation spoil 9; The migration process of high speed camera 16 to emulation spoil 9 is taken pictures, by the distortion of respective sensor record top board 7 and emulation spoil 9 to the acting force of emulation coal seam block 8; Repeat this step, until emulation coal seam block 8 excavate complete, goaf filling is complete.Obvious, in order to obtain different test figures, can adjust parameters such as the angle of inclination of casing, thickness of coal seam and roof and floor types, re-starting test, and then reduce experimentation cost.
In order to further describe the present invention, below enumerating more detailed embodiment and being described.
Box sizes is 1m × 1.05m × 6cm; The height of backboard 4 and front apron 3 is 1.05m, and the left and right sides of backboard 4 and front apron 3 is furnished with and regulates screw group 21, and often group regulates screw group 21 to be made up of 3 screws at a distance of 1cm; Front apron 3 is organic glass baffle plate; Left adjustment plate 1 and right adjustment plate 2 are highly 1m; Bottom plate 5 is connected with telescope support 20 by hinged; Bottom plate 5 top is base plate 22, and the upper surface of base plate 22 has certain roughness; Top board 7 is connected with left adjustment plate 1, right adjustment plate 2 by connecting gusset 19, and top board 7 has certain flexibility; Top board 7 lower surface has certain roughness; Cabinet space is divided into upper and lower two parts by top board 7, and top board 7 top is emulation rock stratum particle 12, and emulation particle 12 top, rock stratum is emulation rock stratum block 13, and the length of each emulation coal seam block 8 is 10cm.And the maximum elongation of telescope support 20 is highly 1m, minimum shortening is highly 0.2m; The equipment of its information acquisition mainly comprise paste on top board 7 surface displacement transducer 14, paste at the emulation pressure transducer 15 at block 8 upper end position, coal seam, high speed camera 16 and data acquisition unit 17.
Utilize described steeply pitching seam waste filling test unit to carry out the method for filling experiment, comprise the following steps:
The first step: select the corresponding screw regulated in screw group 21 according to testing program, utilize screw left adjustment plate 1, right adjustment plate 2, front apron 3 to be connected with backboard 4; A displacement transducer 14 is pasted every 10cm in the surface of top board 7; Top board 7 is connected with a termination of left adjustment plate 1, right adjustment plate 2 by connecting gusset 19; Base plate 22 is connected with bottom plate 5; Bottom plate 5 is connected with front apron 3, backboard 4; Two telescope supports 20 and right adjustment plate 2 are articulated and connected, two telescope supports 20 and bottom plate 5 are articulated and connected.
Second step: the height of adjustment four telescope supports 20, makes arrangement space tilt 60 °; The upper end being positioned at the emulation coal seam block 8 of filling mouth place pastes pressure transducer 15, is arranged in arrangement space by above-mentioned emulation coal seam block 8, and the one end being adhesive with pressure transducer 15 is arranged to emulation spoil 9 direction; Emulation coal seam block 8 utilizes fine rule to connect bunchiness, and at excavation, a bayonet lock 18 is placed at mouth 11 place, prevents the free landing of imitative emulation coal seam block 8; Top board 7 top by lower from fill emulation rock stratum particle 12, place emulation rock stratum block 13 on emulation particle 12 top, rock stratum.
3rd step: displacement transducer 14, pressure transducer 15, high speed camera 16 are connected with a data acquisition unit 17, at the respective side erection high speed camera 16 of casing, whole arrangement space to be covered with camera lens acquisition range, such as high speed camera 16 is arranged on the front of casing, is taken by front apron 3.
4th step: remove one piece of emulation coal seam block 8 at excavation mouth 11 place and simulate coal seam excavation, then simulate Gob Filling with Waste at filling mouth 10 place filling emulation spoil 9; Utilize the migration process of high speed camera 16 to emulation spoil 9 to take pictures, and record the distortion of top board 7 and emulate the acting force of the emulation spoil 9 that coal seam block 8 is subject to; Repeat this step, until emulation coal seam block 8 excavate complete, goaf filling is complete.
5th step: according to testing program, the thickness of adjustment emulation coal seam block 8 re-starts test with the material etc. of angle, top board 7, base plate 22, analyzes the filling effect contrasted under Different factor.
Certainly; more than illustrate and be only preferred embodiment of the present invention; the present invention is not limited to enumerate above-described embodiment; should be noted that; any those of ordinary skill in the art are under the instruction of this instructions; made all equivalently to substitute, obvious form of distortion, within the essential scope all dropping on this instructions, protection of the present invention ought to be subject to.
Claims (5)
1. a steeply pitching seam waste filling test unit, it comprises casing, it is characterized in that, casing comprises left adjustment plate, right adjustment plate, front apron, backboard, bottom plate and upper cover plate, casing is for being in tilted layout, angle between bottom plate and horizontal line is 45 °-70 °, top board and base plate is furnished with above bottom plate, arrangement space is formed between top board and base plate, emulation coal seam block is furnished with in this arrangement space, in the goaf formed, emulation spoil is filled with after the block excavation of emulation coal seam, the upper end of this arrangement space is provided with filling mouth, lower end is provided with excavation mouth, be filled with emulation rock stratum particle in casing between top board and upper cover plate, the upper surface of emulation rock stratum particle is furnished with emulation rock stratum block.
2. steeply pitching seam waste filling test unit according to claim 1, is characterized in that, above-mentioned top board has been evenly arranged multiple displacement transducer on the surface of upper cover plate side; Excavation anteposition is furnished with a pressure transducer in the upper end of the emulation coal seam block of filling mouth place; The front of casing is furnished with high speed camera, and displacement transducer, pressure transducer, high speed camera all communicate to connect with a data acquisition unit.
3. steeply pitching seam waste filling test unit according to claim 1, is characterized in that, is provided with bayonet lock in above-mentioned excavation mouth, and top board is all connected by being connected gusset with left adjustment plate, right adjustment plate.
4. steeply pitching seam waste filling test unit according to claim 1, it is characterized in that, above-mentioned cabinet configuration has supporting mechanism, this supporting mechanism comprises four telescope supports, for adjusting the degree of tilt of casing, wherein two telescope supports are hinged on left adjustment plate, and remaining two telescope supports are hinged on bottom plate.
5. use a test method for steeply pitching seam waste filling test unit as claimed in claim 1, it comprises the following steps:
A, angle between bottom plate and horizontal line are between 45 °-70 °, above-mentioned top board has been evenly arranged multiple displacement transducer on the surface of upper cover plate side, multiple emulation coal seams block is placed in arrangement space, emulation coal seam block connects bunchiness, the upper end being positioned at the emulation coal seam block of filling mouth place is adhesive with pressure transducer, at excavation mouth place placement bayonet lock, for preventing the free landing of emulation coal seam block; Emulation rock stratum particle is filled with in casing between top board and upper cover plate, the upper surface of emulation rock stratum particle flushes with filling mouth position, be furnished with emulation rock stratum block at the upper surface of emulation rock stratum particle, emulation rock stratum particle and emulation rock stratum block constitute the superincumbent stratum in coal seam;
B, remove the emulation coal seam block simulation coal seam excavation of certain length at excavation mouth place, synchronous at filling mouth place filling emulation spoil simulation Gob Filling with Waste; The migration process of high speed camera to emulation spoil is taken pictures, by the distortion of respective sensor record top board and emulation spoil to the acting force of emulation coal seam block; Repeat step B, until emulation coal seam block excavation is complete, goaf filling is complete.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105336263A (en) * | 2015-11-21 | 2016-02-17 | 中国矿业大学 | Steep dip analog simulation experimental platform |
| 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 |
| CN108508184A (en) * | 2018-04-09 | 2018-09-07 | 山东科技大学 | A kind of complex conditions seam mining subsidence analog simulation experimental rig and method |
| CN108593880A (en) * | 2018-04-09 | 2018-09-28 | 山东科技大学 | Automatic test device and method for the test of mining surface movement |
| CN108692966A (en) * | 2018-07-27 | 2018-10-23 | 山东矿机华能装备制造有限公司 | Hydraulic support analogue test platform |
| CN109540572A (en) * | 2019-01-14 | 2019-03-29 | 河北工程大学 | Coal mine filling artificial intelligence experimental rig |
| CN110954671A (en) * | 2018-09-27 | 2020-04-03 | 中国矿业大学(北京) | Fully mechanized caving mining simulation experiment device and method based on stress luminescent material |
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2440873A1 (en) * | 1978-11-07 | 1980-06-06 | Henon Bernard | Coal bag filling machine - has inclined chute with dust collector and roller conveyor for filled bags |
| CN102402892A (en) * | 2011-05-12 | 2012-04-04 | 中国矿业大学 | Device and method for carrying out filling mining plane strain simulation test |
| CN103742148A (en) * | 2014-01-14 | 2014-04-23 | 山东科技大学 | Gangue-filling coal mining method for sharp inclined coal seam under flexible shield support |
| CN204203189U (en) * | 2014-09-01 | 2015-03-11 | 山东科技大学 | A kind of steeply pitching seam waste filling test unit |
-
2014
- 2014-09-01 CN CN201410440813.2A patent/CN104237462B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2440873A1 (en) * | 1978-11-07 | 1980-06-06 | Henon Bernard | Coal bag filling machine - has inclined chute with dust collector and roller conveyor for filled bags |
| CN102402892A (en) * | 2011-05-12 | 2012-04-04 | 中国矿业大学 | Device and method for carrying out filling mining plane strain simulation test |
| CN103742148A (en) * | 2014-01-14 | 2014-04-23 | 山东科技大学 | Gangue-filling coal mining method for sharp inclined coal seam under flexible shield support |
| CN204203189U (en) * | 2014-09-01 | 2015-03-11 | 山东科技大学 | A kind of steeply pitching seam waste filling test unit |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105336263A (en) * | 2015-11-21 | 2016-02-17 | 中国矿业大学 | Steep dip analog simulation experimental platform |
| 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 |
| CN108508184A (en) * | 2018-04-09 | 2018-09-07 | 山东科技大学 | A kind of complex conditions seam mining subsidence analog simulation experimental rig and method |
| CN108593880A (en) * | 2018-04-09 | 2018-09-28 | 山东科技大学 | Automatic test device and method for the test of mining surface movement |
| CN108508184B (en) * | 2018-04-09 | 2023-08-18 | 山东科技大学 | Device and method for simulating subsidence of surface of coal seam mining under complex condition |
| CN108593880B (en) * | 2018-04-09 | 2023-09-19 | 山东科技大学 | Automatic test device and method for mining earth surface movement test |
| CN108692966A (en) * | 2018-07-27 | 2018-10-23 | 山东矿机华能装备制造有限公司 | Hydraulic support analogue test platform |
| CN110954671A (en) * | 2018-09-27 | 2020-04-03 | 中国矿业大学(北京) | Fully mechanized caving mining simulation experiment device and method based on stress luminescent material |
| CN110954671B (en) * | 2018-09-27 | 2024-01-26 | 中国矿业大学(北京) | Fully-mechanized caving mining simulation experiment device and method based on stress luminescent material |
| CN109540572A (en) * | 2019-01-14 | 2019-03-29 | 河北工程大学 | Coal mine filling artificial intelligence experimental rig |
| 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 |
| CN113029794B (en) * | 2021-03-08 | 2022-02-11 | 中国矿业大学 | Three-dimensional similarity simulation device and method for gangue self-sliding filling in goaf of steep coal seam |
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