CN207232158U - A kind of coal seam containing gas mechanical characteristic analogue experiment installation - Google Patents
A kind of coal seam containing gas mechanical characteristic analogue experiment installation Download PDFInfo
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- CN207232158U CN207232158U CN201721345472.6U CN201721345472U CN207232158U CN 207232158 U CN207232158 U CN 207232158U CN 201721345472 U CN201721345472 U CN 201721345472U CN 207232158 U CN207232158 U CN 207232158U
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Abstract
The utility model discloses a kind of coal seam containing gas mechanical characteristic analogue experiment installation, including coal sample container, stress loading system, fill the non-contact whole audience strain measurement system of gas train, gas detector, VIC 3D and acoustic emission system；Coal sample container includes coal sample container casing and coal sample placed cavity, and piston is sealedly connected with the top of coal sample container casing, and coal sample container casing side is equipped with the first multi-purpose stomata, and opposite side is equipped with the second multi-purpose stomata and transparent sight glasses；Stress loading system includes electronic universal tester and the first computer；Filling gas train includes triple valve, vacuum-pumping tube, fills gas pipe, vacuum pump, pressure vacuum gauge, vacuumizes control valve, gas gas cylinder, pressure reducing valve, methane gas pressure gauge and fill gas valve；The non-contact whole audience strain measurement systems of VIC 3D include VIC 3D measuring instruments and second computer.The utility model complete function, can really reflect that underground stays the coal column set to be in unidirectional loading conditions.
Description
Technical field
The utility model belongs to coal petrography mechanical property testing technical field, and in particular to a kind of coal seam containing gas mechanical characteristic
Analogue experiment installation.
Background technology
In recent years, with the increase of seam mining depth, coal seam with gas dynamic disaster also more comes the more, in order to adapt to
Supporting requirement and the mine support technology and gas preventing and control that prevent Gas Disaster and must strengthen under high-ground stress, high methane environment
Technology, the quantity of the reserved coal pillar of underground just must accordingly increase, and be under unidirectional loading conditions of reserved coal pillar (can recognize more
For under uniaxial compressed state), therefore the mechanical property of coal containing methane gas sample in the case of uniaxial compression is studied, for safeguarding underground coal
The prevention of column validity, the safety in subsurface excavation space and Gas Disaster is respectively provided with important practical usage.Now both at home and abroad on
The experimental study of coal deformation characteristic is more, but the change under the not single shaft of coal seam containing gas body, triaxial compressions state that focuses mostly on
The research in terms of deformation characteristic under shape characteristic and coal containing methane gas rock mass triaxial compressions state, and to the single shaft pressure of coal seam containing gas
The research of contracting dynamic characteristic test is less, and since existing experimental study is to containing gas mostly using conventional test specimen and device
Stress-strain of coal, seepage characteristic are studied, and achieve many achievements, but also many cannot be explained from macroscopic perspective
Phenomenon.Therefore, sound emission instrument is added in experimental rig and VIC-3D measuring instruments observe coal containing methane gas sample in single shaft pressure
Some macroscopic view changes under contracting change with thin see, and based on mesomechanics theory and method, from coal petrography micro-mechanical model in gas
Various change under pressure and load effect is set about, and studies the changing rule of coal petrography micro-crack under meso-scale, and grand with coal body
The deformation failure research of sight is combined, and is more reasonably explained being given for the relevant issues of coal and gas prominent, to further taking off
Show coal and gas prominent mechanism and propose that more scientific and effective Prevention Technique has important theory and engineering application value.Cause
This realizes coal containing methane gas under uniaxial compression, it is necessary to a kind of unit simulation underground reserved coal pillar is in the actual conditions of unidirectional stand under load
Rock dynamic characteristic test.
In order to which solve that problem above, Zhang Ru, Liu Bao county, Li Huigui etc. all studies is some of coal petrography under uniaxial compression
Mechanical characteristic, and it is special to combine the sound emission in the gross fracture architectural feature and rupture process of sound emission instrument Study on Coal rock
Property.But this is all the uniaxial compression test carried out under no gas environment, received with the reserved coal pillar in actual coal mining
Unidirectional loading conditions also have very big difference.Since the uniaxial compression test of coal seam containing gas requires to be implicitly present in coal sample
Gas, and preservation gas difficulty is larger thus in fact existing in larger difficulty in coal sample in the case of uniaxial compression.Zhao when just starting
Big vast treasured ensures really to contain in coal sample test specimen again to realize the coal seam containing gas mechanical property research under uniaxial compressed state
Gas, in advance to uniformly smearing silicon rubber protective layer around coal sample test specimen, only retains two end faces up and down, and close in coal sample side wall
Heat-shrink tube is wrapped up, coal sample test specimen is adsorbed into 48h in the case of the gas pressure of setting afterwards, and under different gas pressures
Coal seam containing gas Research on Mechanical Properties under uniaxial compressed state is carried out in MTS 815；Allow push-down head and coal on testing machine during experiment
Silastic-layer, the heat-shrink tube of sample side wall form the space of a closing, and since duration of test runs is shorter, he is considered as the dress
Put and meet coal containing methane gas Experimental Study On Mechanical Properties requirement.Then Cao Shu has just waited the angle research coal seam containing gas from mesomechanics
Distortion Disciplinarian, develops a kind of coal rock solid gas coupling fine observation mechanics experimental rig, and to keys such as device sealing, transparent sight glasses
Technological difficulties are analysed in depth；The experimental rig mainly by loading system, fill gas train, thin see observation system and sound emission
4 parts of monitoring system form, and can also provide the dynamic characteristic test of coal seam containing gas under single shaft stress.Also button
The moon, Li Zhonghui et al. have built coal containing methane gas uniaxial compression information acquisition system, which is believed using coal containing methane gas uniaxial compression
Acquisition system is ceased, system mainly includes stress loading system, sound emission data collecting system, sealed cylinder block, gas and nitrogen weight
Place system, thus his this experimental system can be used for mechanics and sound emission in test coal containing methane gas single shaft stand under load destructive process special
The change of property parameter.
Utility model content
The technical problem to be solved by the utility model is to for above-mentioned deficiency of the prior art, there is provided one kind containing watt
This coal petrography mechanical characteristic analogue experiment installation, its is simple in structure, and design is reasonable, and it is convenient to realize, complete function can be really anti-
Reflecting underground stays the coal column set to be in unidirectional loading conditions, highly practical, easy to promote the use of.
In order to solve the above technical problems, the technical solution adopted in the utility model is：A kind of coal seam containing gas mechanics
Simulated behavior experimental provision, it is characterised in that：Including coal sample container, stress loading system, fill gas train, gas detector,
The non-contact whole audience strain measurement systems of VIC-3D and acoustic emission system；
The coal sample container includes coal sample container casing and the coal sample placed cavity being arranged in coal sample container casing, the coal
Piston is sealedly connected with the top of sample container casing, the side of the coal sample container casing is provided with the first multi-purpose stomata, described
The opposite side of coal sample container casing is provided with the second multi-purpose stomata and transparent sight glasses, and first is provided with the described first multi-purpose stomata
Seal nipple, is provided with the second seal nipple on the described second multi-purpose stomata；
The stress loading system includes electronic universal tester and the stress loading probe phase with electronic universal tester
The first computer connect；
The triple valve for filling gas train and including being connected with the first seal nipple by the first connecting tube, and and threeway
The vacuum-pumping tube and fill gas pipe that valve connects, one end end that the vacuum-pumping tube is not connected with triple valve is connected with vacuum pump,
Pressure vacuum gauge is provided with the vacuum-pumping tube and vacuumizes control valve, described one end filled gas pipe and be not connected with triple valve
End is connected with gas gas cylinder, and described fill on gas pipe is provided with pressure reducing valve, methane gas pressure gauge and fills gas valve；
The gas detector is connected on the second seal nipple by the second connecting tube；
The non-contact whole audience strain measurement systems of VIC-3D include VIC-3D measuring instruments and connect with VIC-3D measuring instruments
Second computer.
A kind of above-mentioned coal seam containing gas mechanical characteristic analogue experiment installation, it is characterised in that：The coal sample container casing
Top piston is sealedly connected with by O-ring seal.
A kind of above-mentioned coal seam containing gas mechanical characteristic analogue experiment installation, it is characterised in that：The piston is by aluminium alloy
Or stainless steel is made.
A kind of above-mentioned coal seam containing gas mechanical characteristic analogue experiment installation, it is characterised in that：The gas detector is
Interference of light gas detector.
A kind of above-mentioned coal seam containing gas mechanical characteristic analogue experiment installation, it is characterised in that：The acoustic emission system is
SAEU2S acoustic emission systems, the SAEU2S acoustic emission systems include the 3rd computer and are adopted with the data that the 3rd computer is connected
Collect cabinet, and the preamplifier being connected by cable with data acquisition cabinet；The input terminal of the preamplifier passes through
Signal wire is connected with sensor.
A kind of above-mentioned coal seam containing gas mechanical characteristic analogue experiment installation, it is characterised in that：The transparent sight glasses use
Thickness is made of the tempered glass of 20mm.
The utility model has the following advantages compared with prior art：
1st, the utility model has the advantages of simple structure, and design is reasonable, and assembling is easy.
2nd, the utility model can carry out the single shaft mechanical test containing the coal petrography under gas environment, especially for containing gas pressure
The lower coal petrography fine observation mechanical test of effect provides more structurally sound research technique.
3rd, the leakproofness of the utility model is preferable, ensure that the air-tightness of whole device.
4th, the side of the utility model coal sample container casing is provided with the first multi-purpose stomata, the coal sample container casing it is another
Side is provided with the second multi-purpose stomata, and during inflation, an air inlet, an outlet, enables to the inflation of coal sample in coal sample container
Evenly.
5th, the stress loading system of the utility model is capable of providing stable pressure, real-time display test data and can record
Mechanics parameter.
6th, the utility model can reflect sample internal structure damage development process in real time by setting acoustic emission system
Characteristics of Acoustic Emission changing rule.
7th, the utility model is by setting the non-contact whole audience strain measurement systems of VIC-3D, can be to surface of test piece into Mobile state
Microscopic observation, obtains the realtime graphic of specimen surface microscopical structure change, and certain foundation is provided to disclose coal petrography mechanical characteristic.
8th, the utility model has versatility, ess-strain, VIC-3D observed images during being tested and
The collection of acoustic emission signal, the mechanical characteristic for further research coal petrography provide abundant basic data.
9 the utility model fill gas train by setting, additionally it is possible to carry out the mesomechanics under different gas pressure effects
Experiment, while can realize larger on-load pressure, larger the blowing pressure, good seal performance.
10th, the utility model can be used in the mechanical property of coal containing methane gas sample in the case of research uniaxial compression, can be more true
Real reflection underground stays the coal column set to be in unidirectional loading conditions, for safeguarding underground coal column validity, subsurface excavation space
The prevention of safety and Gas Disaster is more nearly mine reality.
11st, the utility model is highly practical, easy to promote the use of.
In conclusion the utility model has the advantages of simple structure, design is reasonable, and it is convenient to realize, complete function can be really anti-
Reflecting underground stays the coal column set to be in unidirectional loading conditions, highly practical, easy to promote the use of.
Below by drawings and examples, the technical solution of the utility model is described in further detail.
Description of reference numerals:
1-gas gas cylinder；2-pressure reducing valve；3-methane gas pressure gauge；
4-fill gas valve；5-triple valve；6-vacuumize control valve；
7-pressure vacuum gauge；8-vacuum pump；9-the three computer；
10-data acquisition cabinet；11-preamplifier；12-sensor；
13-electronic universal tester；14-square moulded coal sample；15-coal sample container；
15-1-coal sample placed cavity；15-2-coal sample container casing；15-3-the first uses stomata；
15-4-the second uses stomata；15-5-transparent sight glasses；16-piston；
17-stress loading is popped one's head in；18-the first computer；19-VIC-3D measuring instruments；
20-second computer；21-gas detector；22-the second seal nipple；
23-the first seal nipple；24-O-ring seal.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model.
Fig. 2 is the front view of the utility model coal sample placed cavity.
Fig. 3 is the top view of Fig. 2.
Fig. 4 is the A-A sectional views of Fig. 2.
Embodiment
As shown in Figure 1, a kind of coal seam containing gas mechanical characteristic analogue experiment installation of the utility model, including coal sample container
15th, stress loading system, fill the non-contact whole audience strain measurement system of gas train, gas detector 21, VIC-3D and sound emission
System；
With reference to Fig. 2, Fig. 3 and Fig. 4, the coal sample container 15 includes coal sample container casing 15-2 and is arranged on coal sample vessel shell
Piston 16, the coal sample are sealedly connected with the top of coal sample placed cavity 15-1, the coal sample container casing 15-2 in body 15-2
The opposite side that the side of container casing 15-2 is provided with the first multi-purpose stomata 15-3, the coal sample container casing 15-2 is provided with the
The first seal nipple 22 is provided with two multi-purpose stomata 15-4 and transparent sight glasses 15-5, the described first multi-purpose stomata 15-3, it is described
The second seal nipple 22 is provided with second multi-purpose stomata 15-4；
The stress loading system includes electronic universal tester 13 and is visited with the stress loading of electronic universal tester 13
First 17 the first computers 18 to connect；Being capable of real-time display test data and load-deformation curve on first computer 18
With load-time graph, mechanics parameter is recorded；
The triple valve 5, Yi Jiyu for filling gas train and including being connected with the first seal nipple 22 by the first connecting tube
The vacuum-pumping tube and fill gas pipe that triple valve 5 connects, one end end that the vacuum-pumping tube is not connected with triple valve 5 is connected with very
Sky pump 8, pressure vacuum gauge 7 is provided with the vacuum-pumping tube and vacuumizes control valve 6, it is described fill gas pipe not with triple valve 5
One end end of connection is connected with gas gas cylinder 1, and described fill on gas pipe is provided with pressure reducing valve 2, methane gas pressure gauge 3 and fills
Gas valve 4；The experimental enviroment containing gas for filling gas train and being used to provide coal petrography, is allowed to come into full contact with coal petrography.
The gas detector 21 is connected on the second seal nipple 22 by the second connecting tube；
The non-contact whole audience strain measurement systems of VIC-3D include VIC-3D measuring instruments 19 and with VIC-3D measuring instruments 19
The second computer 20 to connect.
In the present embodiment, the top of the coal sample container casing 15-2 is sealedly connected with piston 16 by O-ring seal 24.
In the present embodiment, the piston 16 is made of aluminium alloy or stainless steel.Since piston 16 needs the loading that meets with stresses
The power of the loading of probe 17 on it, therefore the ability to bear of 16 material of piston is required, it should the higher material of selection intensity,
Aluminium alloy or stainless steel are selected, being capable of meet demand well.
In the present embodiment, the gas detector 21 is interference of light gas detector.
In the present embodiment, the acoustic emission system is SAEU2S acoustic emission systems, and the SAEU2S acoustic emission systems include
3rd computer 9 and the data acquisition cabinet 10 being connected with the 3rd computer 9, and connected by cable and data acquisition cabinet 10
The preamplifier 11 connect；The input terminal of the preamplifier 11 is connected with sensor 12 by signal wire.When it is implemented,
The data acquisition cabinet 10 is connected by USB connecting lines with the 3rd computer 9.Acoustic emission detection is a kind of Dynamic Non-Destruction Measurement
Method, can make the internal structure of component or material, defect or latent defect carry out Non-Destructive Testing during being in motion change.
And the acoustic emission signal in recordable test specimen loading process, obtains the sound emission of reflection sample internal structure damage development process
Feature.
In the present embodiment, the transparent sight glasses 15-5 uses thickness to be made of the tempered glass of 20mm.
The method that coal seam containing gas mechanical characteristic simulated experiment under uniaxial compression is carried out using the utility model, including it is following
Step：
Step 1: prepared by sample, detailed process is：
Step 101, take laboratory remnants coal cinders, and coal dust is ground into by pulverizer；
Step 102, according to coal dust：Gypsum：Water=12：3：After the good coal sample preparing raw material of 5 proportional arrangement, prepared by coal sample
Raw material is put into 12 square moulded coal samples 14 of making in square coal sample mould；When it is implemented, the square moulded coal sample 14
Length, width and height be 100mm, the quantity of the square moulded coal sample 14 is 12；
12 square moulded coal samples 14, is statically placed in ventilating and cooling place maintenance 1~2 week by step 103；
Step 104, be polished 12 square moulded coal samples 14 and grinding process；
Step 105, in the inspection surfaces of 12 square moulded coal samples 14 uniformly smear chalk powder；
Step 106, first take out half from 12 square moulded coal samples 14, as nongassy 6 squares moulded coal sample
14, and it is numbered 1,2,3,4,5,6；When it is implemented, 6 are first taken out from 12 square moulded coal samples 14, as nothing watt
This square moulded coal sample 14, and it is 1,2,3,4,5,6 to number；
Remaining half square moulded coal sample 14, be placed in closed container by step 107, first true with vacuum pumping
Sky, then be filled with from pressurized tank methane gas 2~3 it is small when, be prefabricated into 6 square moulded coal samples 14 containing methane gas, go forward side by side
Row number 7,8,9,10,11,12；When it is implemented, the quantity of the square moulded coal sample 14 containing methane gas is 6, compile
Number be 7,8,9,10,11,12；
Step 2: building experimental rig, detailed process is：
Step 201, connection stress loading system, fill gas train, gas detector 21, VIC-3D observation systems harmony hair
Penetrate system；
Step 202, the square moulded coal sample 14 for taking numbering to be 1 are positioned in coal sample container 15, by the acoustic emission system
In sensor 12 be fixed on the side of square moulded coal sample 14, and smear coupling between sensor 12 and square moulded coal sample 14
Mixture or butter, it is ensured that sensor 12 and square moulded coal sample 14 contact well；
Step 203, after opening the acoustic emission system, disconnected lead behaviour is carried out with propelling pencil at 14 both ends of square moulded coal sample
Make, check the data of the acoustic emission system detection, the fixed position of sensor 12 is corrected according to data；
Step 204, open the VIC-3D observation systems, and opens the stress loading system, adjusts the VIC-
The position of VIC-3D measuring instruments 19 in 3D observation systems；
Step 3: device air-leakage test, detailed process are：
Step 301, by triple valve 5, first used stomata 15-3 and second and use stomata 15-4 and smeared using silicon rubber
Sealing, is then tightly wrapped with sealant tape again, then is handled again with silicon rubber smearing in outer edge；It can solve in coal sample container 15
Triple valve 5 and first use stomata 15-3 and second and use leakage problem at stomata 15-4；
Step 302, opening fill gas valve 4 and pressure reducing valve 2, toward coal sample container 15 in be passed through a certain amount of device in Gas
Body, turns off and fills gas valve 4 and pressure reducing valve 2, then observes the reading of gas detector 21, and coal is detected by the change of reading
The situation of change of methane gas carrys out the air-tightness of detection device in sample container 15；
Step 4: without being tested under gas environment, detailed process is：
Step 401, open vacuum pump 8 and vacuumize control valve 6, and first coal sample container 15 is evacuated with vacuum pump 8, is treated
When the air pressure in coal sample container 15 shown on pressure vacuum gauge 7 is less than 50Pa, closes vacuum pump 8 and vacuumize control valve 6；
Step 402, first contact the piston 16 of coal sample container 15 with square moulded coal sample 14, then by electronic universal tester
13 stress loading 17 decrease speeds of probe are gone at a high speed, when stress loading probe 17 with suspending during the residue 1cm~2cm of piston 16
Electronic universal tester 13, and stress loading 17 decrease speeds of probe of electronic universal tester 13 are gone into low speed, then make to answer
Power loading probe 17 slowly declines, and during decline, observation electronic universal tester 13 connects to be shown on the first computer 18
Loading force numerical value, suspend when loading force numerical value is close to zero, then by all numerical value projects reset；
Step 403, using electronic universal tester 13 by displacement load, loading while, start using the sound send out
The collection that system carries out square moulded coal sample 14 sound emission data is penetrated, and uses the non-contact whole audience strain measurements of the VIC-3D
System is acquired 14 transient change situation photo of square moulded coal sample；Loading speed during loading is 0.05mm/min, number
It is 1Hz according to frequency acquisition, until square moulded coal sample 14 destroys, stops loading and data acquisition, record and preserve electronic universal
The data of testing machine 13, the acoustic emission system and the non-contact whole audience strain measurement systems of the VIC-3D；
Step 404, will number the square moulded coal sample 14 for being 2~6 and take out repeat step 401~403 and tested, and record
And preserve electronic universal tester 13, the acoustic emission system and described during the square moulded coal sample 14 that numbering is 2~6 is tested
The data of the non-contact whole audience strain measurement systems of VIC-3D；
Step 5: being tested under having gas environment, detailed process is：
Step 501, open vacuum pump 8 and vacuumize control valve 6, and first coal sample container 15 is evacuated with vacuum pump 8, is treated
When the air pressure in coal sample container 15 shown on pressure vacuum gauge 7 is less than 50Pa, closes vacuum pump 8 and vacuumize control valve 6；
Step 502, take the square moulded coal sample 14 containing methane gas to be positioned in coal sample container 15, first by coal sample container 15
Piston 16 contacted with square moulded coal sample 14, then the stress loading of electronic universal tester 13 17 decrease speeds of popping one's head in are gone to
At a high speed, the pause electronic universal tester 13 when stress loading probe 17 is with the residue 1cm~2cm of piston 16, and by electronic universal
Stress loading 17 decrease speeds of probe of testing machine 13 go to low speed, then stress loading probe 17 is slowly declined, and are declining
Cheng Zhong, observation electronic universal tester 13 connects the numerical value of the loading force shown on the first computer 18, when loading force numerical value connects
Suspend when nearly zero, then reset all numerical value projects；
Step 503, open and fill gas valve 4 and pressure reducing valve 2, and the gas in gas gas cylinder 1 is filled with coal sample container 15,
After the test pressure that the pressure shown on methane gas pressure gauge 3 reaches predetermined, make pressure stability and keep 10min~
60min, makes square moulded coal sample 14 fully absorb methane gas；The reading of gas detector 21 is observed again, passes through the change of reading
Change the situation of change of methane gas in detection coal sample container 15 to detect the concentration of gas in coal sample container 15；
Step 504, using electronic universal tester 13 by displacement load, loading while, start using the sound send out
The collection that system carries out square moulded coal sample 14 sound emission data is penetrated, and uses the non-contact whole audience strain measurements of the VIC-3D
System is acquired 14 transient change situation photo of square moulded coal sample；Loading speed during loading is 0.05mm/min, number
It is 1Hz according to frequency acquisition, until square moulded coal sample 14 destroys, stops loading and data acquisition, record and preserve electronic universal
The data of testing machine 13, the acoustic emission system and the non-contact whole audience strain measurement systems of the VIC-3D；
Step 505, will number the square moulded coal sample 14 for being 7~12 and take out repeat step 501~504 and tested, and remember
Record and preserve electronic universal tester 13, the acoustic emission system and institute during the square moulded coal sample 14 that numbering is 7~12 is tested
State the data of the non-contact whole audience strain measurement systems of VIC-3D.
The above, is only the preferred embodiment of the utility model, not the utility model is imposed any restrictions, every
Any simple modification, change and the equivalent structure change made according to the utility model technical spirit to above example, still
Belong in the protection domain of technical solutions of the utility model.
Claims (6)
- A kind of 1. coal seam containing gas mechanical characteristic analogue experiment installation, it is characterised in that：Including coal sample container (15), stress loading System, fill gas train, gas detector (21), the non-contact whole audience strain measurement systems of VIC-3D and acoustic emission system；The coal sample container (15) includes coal sample container casing (15-2) and the coal sample being arranged in coal sample container casing (15-2) Placed cavity (15-1), is sealedly connected with piston (16), the coal sample container casing at the top of the coal sample container casing (15-2) The side of (15-2) is provided with the first multi-purpose stomata (15-3), and the opposite side of the coal sample container casing (15-2) is provided with second Stomata (15-4) and transparent sight glasses (15-5) are used, the first seal nipple is provided with the described first multi-purpose stomata (15-3) (23), it is provided with the second seal nipple (22) on the described second multi-purpose stomata (15-4)；The stress loading system includes electronic universal tester (13) and is visited with the stress loading of electronic universal tester (13) The first computer (18) that head (17) connects；The triple valve (5) for filling gas train and including being connected with the first seal nipple (23) by the first connecting tube, Yi Jiyu The vacuum-pumping tube and fill gas pipe that triple valve (5) connects, one end end connection that the vacuum-pumping tube is not connected with triple valve (5) There is vacuum pump (8), pressure vacuum gauge (7) is provided with the vacuum-pumping tube and vacuumizes control valve (6), it is described to fill gas pipe not One end end being connected with triple valve (5) is connected with gas gas cylinder (1), and described fill on gas pipe is provided with pressure reducing valve (2), gas Gas gauge (3) and fill gas valve (4)；The gas detector (21) is connected on the second seal nipple (22) by the second connecting tube；The non-contact whole audience strain measurement systems of VIC-3D include VIC-3D measuring instruments (19) and with VIC-3D measuring instruments (19) The second computer (20) to connect.
- A kind of 2. coal seam containing gas mechanical characteristic analogue experiment installation described in accordance with the claim 1, it is characterised in that：The coal The top of sample container casing (15-2) is sealedly connected with piston (16) by O-ring seal (24).
- A kind of 3. coal seam containing gas mechanical characteristic analogue experiment installation described in accordance with the claim 1, it is characterised in that：The work Plug (16) is made of aluminium alloy or stainless steel.
- A kind of 4. coal seam containing gas mechanical characteristic analogue experiment installation described in accordance with the claim 1, it is characterised in that：Described watt This detector (21) is interference of light gas detector.
- A kind of 5. coal seam containing gas mechanical characteristic analogue experiment installation described in accordance with the claim 1, it is characterised in that：The sound Emission system is SAEU2S acoustic emission systems, and the SAEU2S acoustic emission systems include the 3rd computer (9) and calculated with the 3rd The data acquisition cabinet (10) of machine (9) connection, and the preamplifier being connected by cable with data acquisition cabinet (10) (11)；The input terminal of the preamplifier (11) is connected with sensor (12) by signal wire.
- A kind of 6. coal seam containing gas mechanical characteristic analogue experiment installation described in accordance with the claim 1, it is characterised in that：It is described Photopic vision mirror (15-5) uses thickness to be made of the tempered glass of 20mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721345472.6U CN207232158U (en) | 2017-10-18 | 2017-10-18 | A kind of coal seam containing gas mechanical characteristic analogue experiment installation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721345472.6U CN207232158U (en) | 2017-10-18 | 2017-10-18 | A kind of coal seam containing gas mechanical characteristic analogue experiment installation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374425A (en) * | 2018-12-17 | 2019-02-22 | 郑州轻工业学院 | Analog study experimental provision and experimental method that layer splits destruction occur after coal seam with gas release |
-
2017
- 2017-10-18 CN CN201721345472.6U patent/CN207232158U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374425A (en) * | 2018-12-17 | 2019-02-22 | 郑州轻工业学院 | Analog study experimental provision and experimental method that layer splits destruction occur after coal seam with gas release |
| CN109374425B (en) * | 2018-12-17 | 2024-04-05 | 郑州轻工业学院 | Simulation research experiment device and experiment method for occurrence of fracture after gas-containing coal body pressure relief |
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