CN202548121U - Solid-gas coupling physical analog simulation experiment table for upper protective layer mining - Google Patents
Solid-gas coupling physical analog simulation experiment table for upper protective layer mining Download PDFInfo
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- CN202548121U CN202548121U CN2012201442778U CN201220144277U CN202548121U CN 202548121 U CN202548121 U CN 202548121U CN 2012201442778 U CN2012201442778 U CN 2012201442778U CN 201220144277 U CN201220144277 U CN 201220144277U CN 202548121 U CN202548121 U CN 202548121U
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Abstract
The utility model relates to a solid-gas coupling physical analog simulation experiment table for upper protective layer mining, which comprises an experiment box body, an inflation system, a stress acquisition system, an infiltration velocity testing system and an underlying coal-rock mass expansion deformation testing device. An air compressor, an air storage tank, a test hole and a soap bubble flowmeter are connected by an air duct, a test point is selected from a protected coal seam to arrange an air bag, the air compressor, the air bag, a tee joint and a pressure gauge are connected by the air duct, and gas with certain pressure is filled into the air bag so as to test the expansion deformation and pressure relief effect of the underlying coal-rock mass in a mining active process. A stress sensor, a 108-path stress acquisition instrument and a computer are connected to test the stress variation of the rock stratum in an experiment process. The experiment table provided by the utility model can be used for simulating the protective layer mining under different occurrence conditions and underlying coal-rock mass expansion deformation thereof, pressure relief gas seepage law and pressure relief effect, and is simple and convenient in experiment operation process, clear and visual in effect and short in experimental period.
Description
Technical field
The utility model relates to the last protective seam exploitation solid and gas coupling physics analog simulation experiment table of the experimental study of underlie when protective seam is exploited coal and rock dilatational strain and gas pressure relief percolation law; Specifically be to study on the theoretical basis of protective seam exploitation forefathers; Improved assay method, be convenient to percolation flow velocity, the isoparametric mensuration of coal and rock release dilatational strain amount underlie coal and rock dilatational strain and gas pressure relief seepage flow.Be applicable to that each big coal universities and colleges, mining industry scientific research institutions carry out related experiment.
Background technology
Widespread use along with high strength exploitations such as the intensification of the pit mining degree of depth, production-scale expansion and concentrated, big mining and high comprehensive minings; Make mining influence scope and space enlargement; Increasing low gaseous mine progressively develops into high gas or coal and gas outburst mine, and the research that prevents coal and gas burst accident is become new focus.The outstanding measure of prevention coal and gas is divided by reach; Regional measure and locality measure are arranged; Wherein exploiting protective seam is that prevention is outstanding the most effective, the most economical outstanding technical measures of regionality prevention, the country that present nearly all generation is outstanding; As long as matcoveredn all adopts this measure.But along with the increasing of protective seam and protected seam spacing, the protection effect reduces gradually, and the problem that effect is not enough even lost efficacy may appear protecting in the distance protection layer.
Therefore, be thoroughly to eliminate the outburst danger of protected seam, effectively the gas pressure relief of extraction protected coal seam is guaranteed Safety of Coal Mine Production, is necessary underlie coal and rock release effect and coal-bed gas percolation law of protective seam studied.Grasp the pressure relief gas pumping mining technology of protected seam and definite method of parameter quantitativeization, thereby further strengthen applying of protective seam production technique.
Summary of the invention
Release of coal and rock dilatational strain and the gas percolation law of underliing when protective seam the is exploited research that experimentizes, the utility model provides last protective seam exploitation solid and gas coupling physics analog simulation experiment table.
The technical solution of the utility model is following: a kind of protective seam exploitation solid and gas coupling physics analog simulation experiment table of going up; Comprise that experiment casing (1), gas charging system, stress acquisition system, seepage velocity test macro and the coal and rock dilatational strain that underlies measure trial assembly and put; Gas charging system is made up of air compressor (2), gas-holder (5), valve (3) and tensimeter (4); The stress acquisition system is made up of strain gauge (13), 108 road stress Acquisition Instruments (14) and computing machine (15); The seepage velocity test macro is made up of air compressor (2), valve (3), tensimeter (4), gas-holder (5), wireway (6) and soap bubble flowmeter (12); The coal and rock that underlies dilatational strain measurement trial assembly is put by threeway (7), air bag (9) and tensimeter (4) and is formed; Be provided with working seam (10) and protected seam (11) in the experiment casing (1), select test point to be provided with air bag (9) in the protected seam (11), be provided with strain gauge (13) in the experiment casing (1); Outer threeway (7), survey pore (8), the soap bubble flowmeter (12) of being provided with of experiment casing (1); Air compressor (2) is connected with survey pore (8) with gas-holder (5) successively, and threeway (7) connects air bag (9), air compressor (2) and tensimeter (4), and strain gauge (13) connects 108 road stress Acquisition Instruments (14) and computing machine (15) successively.
The utility model can be measured the variation of underliing coal and rock dilatational strain and gas pressure relief percolation flow velocity, coal and rock dilatational strain, gas pressure relief seepage flow and the release scope Changing Pattern with different spacing/mining height thereby the research protective seam underlied when exploiting.The experimental implementation process is easy, and effect is clear directly perceived, and the test period is short, for the exploitation of research protective seam facilitates.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the box back surface structural representation.
Embodiment
A kind of protective seam exploitation solid and gas coupling physics analog simulation experiment table of going up; Comprise that experiment casing 1, gas charging system, stress acquisition system, seepage velocity test macro and the coal and rock dilatational strain that underlies measure trial assembly and put; Gas charging system is made up of air compressor 2, gas-holder 5, valve 3 and tensimeter 4; The stress acquisition system is made up of strain gauge 13,108 road stress Acquisition Instruments 14 and computing machine 15; The seepage velocity test macro is made up of air compressor 2, valve 3, tensimeter 4, gas-holder 5, wireway 6 and soap bubble flowmeter 12, and the coal and rock that underlies dilatational strain measurement trial assembly is put by threeway 7, air bag 9 and tensimeter 4 and formed, and is provided with working seam 10 and protected seam 11 in the experiment casing 1; Select test point to be provided with air bag 9 in the protected seam 11; Be provided with strain gauge 13 in the experiment casing 1, experiment casing 1 outer threeway 7, survey pore 8, the soap bubble flowmeter 12 of being provided with, air compressor 2 is connected with survey pore 8 with gas-holder 5 successively; Threeway 7 connects air bag 9, air compressor 2 and tensimeter 4, and strain gauge 13 connects 108 road stress Acquisition Instruments 14 and computing machine 15 successively.
The utility model is to adopt following technical scheme to implement:
Before the experiment beginning, the scale model that experiment is required is packed into by proportioning and is tested in the casing 1, comprising working seam 10 and protected coal seam 11.After treating that model dries; Air compressor 2, gas-holder 5, instrument connection 8, soap bubble flowmeter 12 usefulness wireways 6 are connected; And in protected coal seam 11, select test point to arrange air bag 9; After utilizing wireway 6 that air compressor 2, air bag 9, threeway 7, tensimeter 4 are coupled together and in air bag 9, charging into the gas of certain pressure, close threeway 7, making wherein, pressure remains unchanged.In order to test dilatational strain and the release effect thereof of coal and rock in the process of adopting that underlie.Then, strain gauge 13,108 road stress Acquisition Instruments 12, computing machine 15 connected finish, in order to the STRESS VARIATION of rock stratum in the test experiments process.Can begin experiment.In the experimentation,,, gas percolation flow velocity variation in terrane stress variation, the coal and rock that underlies dilatational strain amount, the protected seam 11 is tested with advance of the face process through the slit exploitation protective seam 10 at casing 1 back side.Then, the result analyzes summary with gained, coal and rock dilatational strain and gas pressure relief percolation law thereby research was underlied when exploiting protective seam.
Claims (1)
1. go up protective seam exploitation solid and gas coupling physics analog simulation experiment table for one kind; Comprise that experiment casing (1), gas charging system, stress acquisition system, seepage velocity test macro and the coal and rock dilatational strain that underlies measure trial assembly and put; Gas charging system is made up of air compressor (2), gas-holder (5), valve (3) and tensimeter (4); The stress acquisition system is made up of strain gauge (13), 108 road stress Acquisition Instruments (14) and computing machine (15); The seepage velocity test macro is made up of air compressor (2), valve (3), tensimeter (4), gas-holder (5), wireway (6) and soap bubble flowmeter (12); The coal and rock that underlies dilatational strain measurement trial assembly is put by threeway (7), air bag (9) and tensimeter (4) and is formed; It is characterized in that: be provided with working seam (10) and protected seam (11) in the experiment casing (1), select test point to be provided with air bag (9) in the protected seam (11), be provided with strain gauge (13) in the experiment casing (1); Outer threeway (7), survey pore (8), the soap bubble flowmeter (12) of being provided with of experiment casing (1); Air compressor (2) is connected with survey pore (8) with gas-holder (5) successively, and threeway (7) connects air bag (9), air compressor (2) and tensimeter (4), and strain gauge (13) connects 108 road stress Acquisition Instruments (14) and computing machine (15) successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012201442778U CN202548121U (en) | 2012-04-05 | 2012-04-05 | Solid-gas coupling physical analog simulation experiment table for upper protective layer mining |
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| CN2012201442778U CN202548121U (en) | 2012-04-05 | 2012-04-05 | Solid-gas coupling physical analog simulation experiment table for upper protective layer mining |
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| CN202548121U true CN202548121U (en) | 2012-11-21 |
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| CN2012201442778U Expired - Fee Related CN202548121U (en) | 2012-04-05 | 2012-04-05 | Solid-gas coupling physical analog simulation experiment table for upper protective layer mining |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104502565A (en) * | 2014-12-31 | 2015-04-08 | 马新足 | Two-dimensional solid-heat-gas three-field coupling physical analog simulation experiment table |
| CN104569345A (en) * | 2014-12-18 | 2015-04-29 | 西安科技大学 | Two-dimensional solid, thermal and gas multi-field coupling physical analogue simulating method |
| CN104931675A (en) * | 2015-07-07 | 2015-09-23 | 西安科技大学 | Analog simulation experiment device and method for solid gas coupling of upper protective layer mining |
| CN105301202A (en) * | 2015-11-24 | 2016-02-03 | 山东科技大学 | Test system and test method for determining upper protective layer mining pressure releasing scope |
| CN106198340A (en) * | 2016-06-22 | 2016-12-07 | 辽宁工程技术大学 | A kind of coal seam permeability test system and method simulating pit mining |
| CN107560570A (en) * | 2017-08-17 | 2018-01-09 | 重庆大学 | A kind of high methane cherry coal drilling production quantity of slag and the method for testing of drilling deformation |
| CN108627116A (en) * | 2018-05-31 | 2018-10-09 | 中国石油天然气集团有限公司 | 3 D laser scanning device for detecting deformation and method with insulating layer storage tank |
| CN108918337A (en) * | 2018-09-18 | 2018-11-30 | 中国矿业大学(北京) | It is a kind of based in seal chamber continuously plus release gas experimental rig and test method |
| CN112780233A (en) * | 2021-01-13 | 2021-05-11 | 中国海洋石油集团有限公司 | Device and method for simulating exploitation of free gas hydrate under bottom |
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2012
- 2012-04-05 CN CN2012201442778U patent/CN202548121U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104569345A (en) * | 2014-12-18 | 2015-04-29 | 西安科技大学 | Two-dimensional solid, thermal and gas multi-field coupling physical analogue simulating method |
| CN104502565A (en) * | 2014-12-31 | 2015-04-08 | 马新足 | Two-dimensional solid-heat-gas three-field coupling physical analog simulation experiment table |
| CN104931675B (en) * | 2015-07-07 | 2017-05-31 | 西安科技大学 | A kind of up-protective layer exploits solid-gas coupling analog simulation experimental device and experimental technique |
| CN104931675A (en) * | 2015-07-07 | 2015-09-23 | 西安科技大学 | Analog simulation experiment device and method for solid gas coupling of upper protective layer mining |
| CN105301202B (en) * | 2015-11-24 | 2018-01-02 | 山东科技大学 | For determining the test system and method for testing of up-protective layer exploitation relief range |
| CN105301202A (en) * | 2015-11-24 | 2016-02-03 | 山东科技大学 | Test system and test method for determining upper protective layer mining pressure releasing scope |
| CN106198340A (en) * | 2016-06-22 | 2016-12-07 | 辽宁工程技术大学 | A kind of coal seam permeability test system and method simulating pit mining |
| CN107560570A (en) * | 2017-08-17 | 2018-01-09 | 重庆大学 | A kind of high methane cherry coal drilling production quantity of slag and the method for testing of drilling deformation |
| CN107560570B (en) * | 2017-08-17 | 2019-05-21 | 重庆大学 | A kind of high methane cherry coal drilling produces the test method of the quantity of slag and drilling deformation |
| CN108627116A (en) * | 2018-05-31 | 2018-10-09 | 中国石油天然气集团有限公司 | 3 D laser scanning device for detecting deformation and method with insulating layer storage tank |
| CN108627116B (en) * | 2018-05-31 | 2020-04-10 | 中国石油天然气集团有限公司 | Three-dimensional laser scanning deformation detection device and method for storage tank with insulating layer |
| CN108918337A (en) * | 2018-09-18 | 2018-11-30 | 中国矿业大学(北京) | It is a kind of based in seal chamber continuously plus release gas experimental rig and test method |
| CN112780233A (en) * | 2021-01-13 | 2021-05-11 | 中国海洋石油集团有限公司 | Device and method for simulating exploitation of free gas hydrate under bottom |
| CN112780233B (en) * | 2021-01-13 | 2022-04-19 | 中国海洋石油集团有限公司 | Device and method for simulating exploitation of free gas hydrate under bottom |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20140405 |