CN104569345B - Two-dimensional solid steam multi-scenarios method physical simulation method - Google Patents
Two-dimensional solid steam multi-scenarios method physical simulation method Download PDFInfo
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- CN104569345B CN104569345B CN201410852870.1A CN201410852870A CN104569345B CN 104569345 B CN104569345 B CN 104569345B CN 201410852870 A CN201410852870 A CN 201410852870A CN 104569345 B CN104569345 B CN 104569345B
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Abstract
The invention discloses a kind of two-dimensional solid steam multi-scenarios method physical simulation method, can measure during seam mining, Strata Overlying The Seam stress and gas pressure relief percolation flow velocity are with the Changing Pattern adopted, also can measure the impact on coal and rock temperature of the gas porous flow process, the temperature changing the heating of the casing external resistance silk impact on wherein gas pressure relief percolation flow velocity can be studied simultaneously, homogeneous heating simultaneously, decrease due to uneven brought error of being heated, improve the precision of measurement, the moisture that simultaneously can also measure different content changes to terrane stress, the impact of gas pressure relief percolation flow velocity.
Description
Technical field
The present invention relates to a kind of analogy method, is specifically related to a kind of two-dimensional solid steam multi-scenarios method physical simulation
Method.
Background technology
Physical simulation experiment is research mine pressure, a kind of effective means of gas migration, is based on similar reason
Opinion, orthodox regression, select fragility analog material to make the laboratory procedure of model, be widely used in
The departments such as water conservancy, mining, geology.At present, the most physical simulation experiment of mineral industry relates generally to adopt
The rock mass mechanics research categories such as field, roadway, are all products after the rock mass stress studying many architectural characteristics of enbrittling
The phenomenons such as raw elastic-plastic deformation, displacement, being caving of broken and sillar, compacting.Solid steam is coupled
The research of effect is also concentrated mainly on theory analysis and numerical simulation aspect etc..Experiment is coupling in for solid steam
The less of physical simulation experiment is carried out in room.The real platform of two-dimensional solid steam coupling physical simulation that this patent relates to
It is primarily directed to the research and development of this problem.
Summary of the invention
For solving the problems referred to above, the invention provides two-dimensional solid steam multi-scenarios method physical simulation method,
Can measure during seam mining, Strata Overlying The Seam stress and gas pressure relief percolation flow velocity are with the change adopted
Law, also can measure the impact on coal and rock temperature of the gas porous flow process, can study outside change casing simultaneously
The impact on wherein gas pressure relief percolation flow velocity of the temperature of Resistant heating.
For achieving the above object, the technical scheme that the present invention takes is:
Two-dimensional solid steam multi-scenarios method physical simulation method, comprises the steps:
S1, take four identical casings of structure, label A, B, C and D, offer survey pore in casing both sides；
S2, weld ceramics in casing both sides, ceramics punches, then by resistance wire through aperture, uniformly
It is wrapped in the outside of casing, lays high accuracy strain gauge at box bottom；
S3, in casing A, B, C, lay mining coal seam and rock stratum respectively, and lay in casing A, B, C
Cover water device and humidity sensor；
S4, with airway by the survey pore of casing A, B, C and air compressor, air accumulator, soap bubble flow
Meter is connected, and will cover water device and be connected with water supply installation, is connected with computer by humidity sensor；
S5, with wire, strain gauge and 108 road stress Acquisition Instruments and computer are connected, in order to test reality
The STRESS VARIATION of rock stratum during testing；
S6, man-made recovery's mining coal seam, by working seam with advance of the face process, terrane stress is changed,
Gas pressure relief percolation flow velocity and the change of coal and rock humidity are tested；
S7, in casing D, lay mining coal seam and rock stratum, after mining coal seam and rock stratum dry, will with airway
The survey pore of casing D is connected with air compressor, air accumulator, soap bubble flowmeter, and with wire by resistance wire
It is connected with thermostat and temperature sensor, strain gauge is connected with 108 road stress Acquisition Instruments and computer
Connect, variations in temperature and the variations in temperature impact on wherein gas porous flow speed in test coal rock layer；
S8, man-made recovery's mining coal seam, by working seam with advance of the face process, terrane stress is changed,
Gas pressure relief percolation flow velocity and coal and rock variations in temperature are tested；
S9, employing different angle working seam, by working seam with advance of the face process, should to rock stratum
Power change, gas pressure relief percolation flow velocity and coal and rock variations in temperature are tested；
S10, the test result of step S5, S6, S8, S9 gained is analyzed sum up, thus research adopt
Liquid thermosetting gas Coupling Rule during Dong.
The method have the advantages that
Can measure during seam mining, Strata Overlying The Seam stress and gas pressure relief percolation flow velocity are with adopting
Dynamic Changing Pattern, also can measure the impact on coal and rock temperature of the gas porous flow process, can study change simultaneously
The impact on wherein gas pressure relief percolation flow velocity of the temperature of casing external resistance silk heating, homogeneous heating simultaneously, subtract
Lack due to uneven brought error of being heated, improve the precision of measurement, difference can also have been measured simultaneously
The moisture of content is on terrane stress change, the impact of gas pressure relief percolation flow velocity.
Detailed description of the invention
In order to make objects and advantages of the present invention clearer, below in conjunction with embodiment, the present invention is carried out
Further describe.Should be appreciated that specific embodiment described herein only in order to explain the present invention,
It is not intended to limit the present invention.
Embodiments provide a kind of two-dimensional solid steam multi-scenarios method physical simulation method, including such as
Lower step:
S1, take four identical casings of structure, label A, B, C and D, offer survey pore in casing both sides；
S2, weld ceramics in casing both sides, ceramics punches, then by resistance wire through aperture, uniformly
It is wrapped in the outside of casing, lays high accuracy strain gauge at box bottom；
S3, in casing A, B, C, lay mining coal seam and rock stratum respectively, and lay in casing A, B, C
Cover water device and humidity sensor；
S4, with airway by the survey pore of casing A, B, C and air compressor, air accumulator, soap bubble flow
Meter is connected, and will cover water device and be connected with water supply installation, is connected with computer by humidity sensor；
S5, with wire, strain gauge and 108 road stress Acquisition Instruments and computer are connected, in order to test reality
The STRESS VARIATION of rock stratum during testing；
S6, man-made recovery's mining coal seam, by working seam with advance of the face process, terrane stress is changed,
Gas pressure relief percolation flow velocity and the change of coal and rock humidity are tested；
S7, in casing D, lay mining coal seam and rock stratum, after mining coal seam and rock stratum dry, will with airway
The survey pore of casing D is connected with air compressor, air accumulator, soap bubble flowmeter, and with wire by resistance wire
It is connected with thermostat and temperature sensor, strain gauge is connected with 108 road stress Acquisition Instruments and computer
Connect, variations in temperature and the variations in temperature impact on wherein gas porous flow speed in test coal rock layer；
S8, man-made recovery's mining coal seam, by working seam with advance of the face process, terrane stress is changed,
Gas pressure relief percolation flow velocity and coal and rock variations in temperature are tested；
S9, employing different angle working seam, by working seam with advance of the face process, should to rock stratum
Power change, gas pressure relief percolation flow velocity and coal and rock variations in temperature are tested；
S10, the test result of step S5, S6, S8, S9 gained is analyzed sum up, thus research adopt
Liquid thermosetting gas Coupling Rule during Dong.
Embodiment
A kind of two-dimensional solid steam multi-scenarios method physical simulation method, comprises the steps:
S11, offer survey pore in casing both sides, in casing, lay mining coal seam and rock stratum, mining coal seam and rock
The thickness of layer is 1 meter, and lays silicon carbide heating rod in mining coal seam, and laying high accuracy at box bottom should
Force transducer；
S12, after mining coal seam and rock stratum dry, with airway will survey pore and air compressor, air accumulator,
Soap bubble flowmeter is connected, and is connected with thermostat and temperature sensor by constant temperature silicon carbide heating rod with wire,
Control constant temperature silicon carbide heating rod by temperature controller mining coal seam is heated, make mining coal seam temperature reach respectively
25 DEG C, 30 DEG C, 50 DEG C, 80 DEG C, wherein gas is oozed testing variations in temperature and variations in temperature in coal rock layer
The impact of Flow Velocity；
S13, with wire, strain gauge and 108 road stress Acquisition Instruments and computer are connected, man-made recovery
Mining coal seam, by working seam with advance of the face process, is gathered by strain gauge and 108 road stress
Terrane stress change is tested by instrument, by surveying pore and air compressor, air accumulator, soap bubble flowmeter
Gas pressure relief percolation flow velocity and coal and rock variations in temperature are tested；
S14, the test of step S2, S3 gained was met it is analyzed summing up, thus studied in mining active process
Thermosetting gas Coupling Rule.
The above is only the preferred embodiment of the present invention, it is noted that common for the art
For technical staff, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications,
These improvements and modifications also should be regarded as protection scope of the present invention.
Claims (1)
1. two-dimensional solid steam multi-scenarios method physical simulation method, it is characterised in that comprise the steps:
S1, take four identical casings of structure, label A, B, C and D, offer survey pore in casing both sides；
S2, weld ceramics in casing both sides, ceramics punches, then by resistance wire through aperture, uniformly
It is wrapped in the outside of casing, lays high accuracy strain gauge at box bottom；
S3, in casing A, B, C, lay mining coal seam and rock stratum respectively, and lay in casing A, B, C
Cover water device and humidity sensor；
S4, with airway by the survey pore of casing A, B, C and air compressor, air accumulator, soap bubble flow
Meter is connected, and will cover water device and be connected with water supply installation, is connected with computer by humidity sensor；
S5, with wire, strain gauge and 108 road stress Acquisition Instruments and computer are connected, in order to test reality
The STRESS VARIATION of rock stratum during testing；
S6, man-made recovery's mining coal seam, by working seam with advance of the face process, terrane stress is changed,
Gas pressure relief percolation flow velocity and the change of coal and rock humidity are tested；
S7, in casing D, lay mining coal seam and rock stratum, after mining coal seam and rock stratum dry, will with airway
The survey pore of casing D is connected with air compressor, air accumulator, soap bubble flowmeter, and with wire by resistance wire
It is connected with thermostat and temperature sensor, strain gauge is connected with 108 road stress Acquisition Instruments and computer
Connect, variations in temperature and the variations in temperature impact on wherein gas porous flow speed in test coal rock layer；
S8, man-made recovery's mining coal seam, by working seam with advance of the face process, terrane stress is changed,
Gas pressure relief percolation flow velocity and coal and rock variations in temperature are tested；
S9, employing different angle working seam, by working seam with advance of the face process, should to rock stratum
Power change, gas pressure relief percolation flow velocity and coal and rock variations in temperature are tested；
S10, the test result of step S5, S6, S8, S9 gained is analyzed sum up, thus research adopt
Liquid thermosetting gas Coupling Rule during Dong.
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| US4955237A (en) * | 1989-06-07 | 1990-09-11 | Takenaka Corp | Method and apparatus for measurement of in-situ horizontal stress by freezing of the ground in-situ |
| FR2810736B1 (en) * | 2000-06-23 | 2002-09-20 | Inst Francais Du Petrole | METHOD FOR EVALUATING PHYSICAL PARAMETERS OF A SUBTERRANEAN DEPOSIT FROM ROCK DEBRIS COLLECTED THEREIN |
| US6860147B2 (en) * | 2002-09-30 | 2005-03-01 | Alberta Research Council Inc. | Process for predicting porosity and permeability of a coal bed |
| CN101377479B (en) * | 2008-09-25 | 2011-12-28 | 山东科技大学 | Stope mine pressing three-dimensional physical simulation test stand |
| CN102262148A (en) * | 2011-04-19 | 2011-11-30 | 中国矿业大学(北京) | Three-dimensional experiment platform for solid filling and mining of coal mine |
| CN202548121U (en) * | 2012-04-05 | 2012-11-21 | 西安科技大学 | Solid-gas coupling physical analog simulation experiment table for upper protective layer mining |
| CN102879284B (en) * | 2012-09-29 | 2014-10-29 | 重庆大学 | Triaxial-loading large three-dimensional similar simulation test sample box |
| CN102866241B (en) * | 2012-09-29 | 2015-04-15 | 重庆大学 | Three-directionally-loaded large-scale three-dimensional similarity simulation test method |
| CN103089254B (en) * | 2013-01-23 | 2015-10-28 | 重庆大学 | Multi-scenarios method coal-bed gas exploitation physical simulation experiment pipe |
| CN103114870B (en) * | 2013-01-23 | 2015-04-29 | 重庆大学 | Multi-field coupling coal bed methane extraction physical simulation testing system |
| CN103089295B (en) * | 2013-01-23 | 2015-10-28 | 重庆大学 | Coal bed gas extraction test method in multiple seam unitized production process |
| CN103114827B (en) * | 2013-01-23 | 2016-09-28 | 重庆大学 | Multi-scenarios method coal bed gas extraction simulation experiment method |
| CN203299196U (en) * | 2013-05-31 | 2013-11-20 | 西安科技大学 | Two-dimensional solid hot gas three-field coupling physical similarity analog experiment table |
| CN103728147B (en) * | 2013-12-06 | 2016-06-08 | 中国矿业大学(北京) | The comprehensive wall top coal that lengthens of tilt adjustable releases three-dimensional simulation experimental provision and method |
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