CN104569150B - Coal petrography mechanics parameter detector and its method for determining coal petrography mechanics parameter - Google Patents
Coal petrography mechanics parameter detector and its method for determining coal petrography mechanics parameter Download PDFInfo
- Publication number
- CN104569150B CN104569150B CN201310466777.2A CN201310466777A CN104569150B CN 104569150 B CN104569150 B CN 104569150B CN 201310466777 A CN201310466777 A CN 201310466777A CN 104569150 B CN104569150 B CN 104569150B
- Authority
- CN
- China
- Prior art keywords
- mechanics parameter
- coal
- ultrasonic
- supersonic reflectoscope
- rock specimen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000003245 coal Substances 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000011435 rock Substances 0.000 claims abstract description 39
- 238000012360 testing method Methods 0.000 claims description 6
- 238000002604 ultrasonography Methods 0.000 claims description 6
- 230000035772 mutation Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention discloses a kind of coal petrography mechanics parameter tester and its method for determining coal petrography mechanics parameter, including uni-axial press, supersonic reflectoscope.The emitter stage and receiving pole of supersonic reflectoscope are separately fixed at the both sides of coal rock specimen first, after ultrasonic signal is by coal rock specimen, supersonic reflectoscope signal processing unit can show the ultrasonic parameters received.Uni-axial press can produce different uniaxial tensions to coal rock specimen, and when ultrasonic wave is by the coal rock specimen that is acted on by uniaxial tension, supersonic reflectoscope signal processing unit can show different ultrasonic parameters.The mechanics parameter of coal rock specimen can be obtained by the situation of change for analyzing ultrasonic parameters.The present invention to determine coal petrography mechanics parameter detector simple in construction, easy to carry, detection data accurately and reliably, can dynamically detect that coal petrography mechanics parameter changes, and then analyze crack Evolution of the coal rock specimen under uniaxial tension effect.
Description
Technical field
The present invention relates to a kind of technology of utilization ultrasonic wave dynamic detection coal petrography mechanics parameter, more particularly to a kind of coal petrography power
Learn parameter detecting instrument and the method for determining coal petrography mechanics parameter.
Background technology
At present, domestic and international mechanical property of coal seam analysis means are all that in laboratory conditions, standard coal rock specimen is carried out
The failure tests such as stretching, compression, torsion, result of study is difficult the complexity for showing the change of coal rock specimen internal crack, more
The mechanical property that can not reflect exactly under coal petrography dynamic changing condition.Although some experimental studies utilize ultrasonic analysis coal petrography
Test specimen mechanical property, but because the ultrasonic wave direction of the launch with coal rock specimen Impact direction is typically consistent, therefore can not be accurate
Reflect the dynamic change in coal rock specimen crack.
The content of the invention
It is an object of the invention to provide it is a kind of can the accurate, detector for judging coal petrography mechanics parameter of science and its measure coal
The method of rock mechanics parameter.
The purpose of the present invention is achieved through the following technical solutions：
The coal petrography mechanics parameter detector of the present invention, including uni-axial press and supersonic reflectoscope, described single shaft pressure
Power machine includes the jack with pressure reading table, upper workbench, lower workbench, movable platform and standing screw, described super
Sonic wave detector includes emitter stage, receiving pole and signal processing unit.
Workbench and lower workbench are by fixing on the coal petrography mechanics parameter detector of the present invention, the uni-axial press
Screw rod is fixed, and the uni-axial press movable platform is located in the middle of upper workbench and lower workbench, the uni-axial press
Jack with pressure reading table is placed in the middle of movable platform and lower workbench.
The coal petrography mechanics parameter detector of the present invention, the supersonic reflectoscope emitter stage and receiving pole are located at the single shaft
In forcing press movable platform, the supersonic reflectoscope emitter stage sends ultrasonic signal, the supersonic reflectoscope receiving pole
The ultrasonic signal sent by emitter stage is received, and the ultrasonic signal is input to the supersonic reflectoscope signal transacting list
Member, the signal processing unit shows corresponding ultrasonic parameters according to ultrasonic signal.
The method that the above-mentioned coal petrography mechanics parameter detector of the present invention determines coal petrography mechanics parameter, including：
First, coal rock specimen is placed in uni-axial press movable platform, supersonic reflectoscope emitter stage and receiving pole
The both sides of coal rock specimen are fixed on, the supersonic reflectoscope emitter stage sends ultrasonic signal by coal rock specimen, it is described super
Sonic wave detector receiving pole receives the ultrasonic signal by coal rock specimen, and the ultrasonic signal is input into the ultrasound
Ripple detector signal processing unit, the signal processing unit shows corresponding ultrasonic parameters according to ultrasonic signal；
Operation jack of the uni-axial press with pressure reading table rises movable platform, using being worked on uni-axial press
Platform and movable platform produce uniaxial tension to coal rock specimen, and now supersonic reflectoscope signal processing unit can show difference
Ultrasonic parameters；
Afterwards, the situation of change of ultrasonic parameters according to supersonic reflectoscope signal processing unit analyzes the coal
The mechanics parameter of rock test specimen.
As seen from the above technical solution provided by the invention, coal petrography mechanics parameter detector of the present invention and its
The method for determining coal petrography mechanics parameter, because supersonic reflectoscope can carry out Non-Destructive Testing to coal rock specimen, can sentence first
Break and the fundamental mechanics parameter of coal rock specimen；Different size of uniaxial tension is applied to coal rock specimen by uni-axial press, can
Changed with being reflected using supersonic reflectoscope by the ultrasonic signal of coal rock specimen, so as to symbolize the compression of coal rock specimen
With internal crack situation of change, the dynamic detection of coal petrography mechanics parameter is realized.Because uniaxial tension action direction is perpendicular to ultrasound
Crack change inside direction of wave travel, coal rock specimen can be captured by ultrasonic wave exactly, so coal petrography mechanics parameter
Testing result it is more accurate.
Brief description of the drawings
Fig. 1 is the theory diagram of the coal petrography mechanics parameter detector of the present invention.
Embodiment
The present invention coal petrography mechanics parameter detector, its embodiment as shown in figure 1, including uni-axial press and surpass
Sonic wave detector, described uni-axial press includes the jack with pressure reading table, upper workbench, lower workbench, work
Moving platform and standing screw, the supersonic reflectoscope include emitter stage, receiving pole and signal processing unit.
The above-mentioned coal petrography mechanics parameter detector of the present invention determines the method for coal petrography mechanics parameter, its embodiment
It is：
First, coal rock specimen is placed in uni-axial press movable platform, supersonic reflectoscope emitter stage and receiving pole
The both sides of coal rock specimen are fixed on, the supersonic reflectoscope emitter stage sends ultrasonic signal by coal rock specimen, it is described super
Sonic wave detector receiving pole receives the ultrasonic signal by coal rock specimen, and the ultrasonic signal is input into the ultrasound
Ripple detector signal processing unit, the signal processing unit shows corresponding ultrasonic parameters according to ultrasonic signal；
Operation jack of the uni-axial press with pressure reading table rises movable platform, using being worked on uni-axial press
Platform and movable platform produce uniaxial tension to coal rock specimen, and now supersonic reflectoscope signal processing unit can show difference
Ultrasonic parameters；
Afterwards, the situation of change of ultrasonic parameters according to supersonic reflectoscope signal processing unit analyzes the coal
The mechanics parameter of rock test specimen.
When detecting coal rock specimen, ultrasound examination can be carried out under the action condition of different uniaxial tensions, according to ultrasound
Ripple detector shows different ultrasonic parameters, so as to analyze the mechanics parameter of coal petrography.
In specific embodiment, supersonic reflectoscope can be from the super of the nonmetallic detectors of ZBL-U510 or other models
Sonic wave detector.
The present invention to determine coal petrography mechanics parameter detector simple in construction, easy to carry, detection data accurately and reliably, can
Dynamically to detect that coal petrography mechanics parameter changes, and then analyze crack Evolution of the coal rock specimen under uniaxial tension effect.
The foregoing is only a specific embodiment of the invention but protection scope of the present invention is not limited thereto, and appoints
What those familiar with the art's invention the invention discloses technical scope in, the change that can easily expect or replace
Change, should all be included within the scope of the present invention.
Claims (4)
1. a kind of coal petrography mechanics parameter detector, it is characterised in that including uni-axial press and supersonic reflectoscope, described list
Axle forcing press includes the jack with pressure reading table, upper workbench, lower workbench, movable platform and standing screw, institute
Stating supersonic reflectoscope includes emitter stage, receiving pole and signal processing unit；
The upper workbench of the uni-axial press and lower workbench are fixed by standing screw, the activity of the uni-axial press
Platform is located in the middle of upper workbench and lower workbench, and the jack with pressure reading table of the uni-axial press is placed in work
In the middle of moving platform and lower workbench；
The emitter stage and receiving pole of the supersonic reflectoscope are located in the movable platform of the uni-axial press, the ultrasonic wave
The emitter stage of detector sends ultrasonic signal, and the receiving pole of the supersonic reflectoscope receives the ultrasonic wave sent by emitter stage
Signal, and the ultrasonic signal is input to the signal processing unit of the supersonic reflectoscope, the signal processing unit root
Corresponding ultrasonic parameters are shown according to ultrasonic signal.
2. the method that the coal petrography mechanics parameter detector described in a kind of claim 1 determines coal petrography mechanics parameter, it is characterised in that
Including:
First, coal rock specimen is placed in the movable platform of uni-axial press, the emitter stage and receiving pole of supersonic reflectoscope
The both sides of coal rock specimen are fixed on, the emitter stage of the supersonic reflectoscope sends ultrasonic signal by coal rock specimen, described
The receiving pole of supersonic reflectoscope receives the ultrasonic signal by coal rock specimen, and the ultrasonic signal is input to described
The signal processing unit of supersonic reflectoscope, the signal processing unit shows that corresponding ultrasonic wave is joined according to ultrasonic signal
Number；
The jack with pressure reading table of operation uni-axial press rises movable platform, utilizes the upper work of uni-axial press
Platform and movable platform produce uniaxial tension to coal rock specimen, and now the signal processing unit of supersonic reflectoscope can be shown not
Same ultrasonic parameters；
Afterwards, the situation of change of ultrasonic parameters according to the signal processing unit of supersonic reflectoscope analyzes the coal petrography
The mechanics parameter of test specimen.
3. the method that coal petrography mechanics parameter detector according to claim 2 determines coal petrography mechanics parameter, it is characterised in that
The coal rock specimen carries out ultrasound examination, the uniaxial tension direction that the coal rock specimen is subject under the effect of different uniaxial tensions
It is vertical with ultrasonic propagation direction.
4. the method that coal petrography mechanics parameter detector according to claim 3 determines coal petrography mechanics parameter, it is characterised in that
The mechanics parameter of the ultrasonic parameters mutation analysis coal rock specimen shown by the signal processing unit of supersonic reflectoscope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310466777.2A CN104569150B (en) | 2013-10-09 | 2013-10-09 | Coal petrography mechanics parameter detector and its method for determining coal petrography mechanics parameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310466777.2A CN104569150B (en) | 2013-10-09 | 2013-10-09 | Coal petrography mechanics parameter detector and its method for determining coal petrography mechanics parameter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104569150A CN104569150A (en) | 2015-04-29 |
| CN104569150B true CN104569150B (en) | 2017-08-11 |
Family
ID=53085711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310466777.2A Expired - Fee Related CN104569150B (en) | 2013-10-09 | 2013-10-09 | Coal petrography mechanics parameter detector and its method for determining coal petrography mechanics parameter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104569150B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404913B (en) * | 2016-10-31 | 2019-03-05 | 石家庄铁道大学 | Tunnel-liner sulphate corrosion detection method |
| CN111044364A (en) * | 2019-12-18 | 2020-04-21 | 辽宁工程技术大学 | Sound wave feedback coal rock structure damage stability detection experimental device |
| CN114543456B (en) * | 2022-01-20 | 2022-11-29 | 中国矿业大学 | Nondestructive drying device and drying method based on coal rock mass ultrasonic monitoring |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201205566Y (en) * | 2008-05-30 | 2009-03-11 | 中国十五冶金建设有限公司 | Hydraulic pressing machine for jack |
| CN103267678A (en) * | 2013-04-28 | 2013-08-28 | 北京大学 | Synchronous measurement method and apparatus for dynamic and static rock mechanical parameters |
-
2013
- 2013-10-09 CN CN201310466777.2A patent/CN104569150B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201205566Y (en) * | 2008-05-30 | 2009-03-11 | 中国十五冶金建设有限公司 | Hydraulic pressing machine for jack |
| CN103267678A (en) * | 2013-04-28 | 2013-08-28 | 北京大学 | Synchronous measurement method and apparatus for dynamic and static rock mechanical parameters |
Non-Patent Citations (3)
| Title |
|---|
| 单轴受压混凝土损伤的细观试验研究;吴丽琴;《中国优秀博硕士学位论文全文数据库 (硕士) 工程科技Ⅱ辑》;20061215(第12期);论文全文 * |
| 复杂应力状态下大骨料混凝土力学特性的试验研究和分析;王怀亮;《中国博士学位论文全文数据库 工程科技Ⅱ辑》;20080215(第02期);论文正文第35-38页，图2-10、图2-12 * |
| 岩石扩容与超声波横波速率关系研究;翟小洁 等;《西南科技大学学报》;20070331;第22卷(第1期);第39页摘要，第40-41页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104569150A (en) | 2015-04-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104407049B (en) | A kind of micro-crack nondestructive detection system and its detection method | |
| WO2020057270A1 (en) | Ultrasonic nondestructive detection method for expanded size of micro crack of material | |
| CN102759487B (en) | Partial stiffness method based composite material non-destructive detection system and detection method | |
| US20100042338A1 (en) | Structural Health Monitoring Apparatus and Methodology | |
| CN103822970A (en) | Portable full automatic resistance spot welding ultrasonic detecting instrument and detecting method | |
| CN104501750B (en) | A kind of method of ultrasonic phase array measurement U rib weld penetrations | |
| CN104569150B (en) | Coal petrography mechanics parameter detector and its method for determining coal petrography mechanics parameter | |
| JP2007040781A (en) | Blow inspection device and blow inspection method | |
| Polimeno et al. | A compact thermosonic inspection system for the inspection of composites | |
| CN108519437A (en) | A kind of the multiple regression forecasting model and its method for building up of coal sample uniaxial compressive strength | |
| CN203385699U (en) | System for detecting residual stress and structure defect | |
| CN105277149B (en) | Faying face real contact area measurement apparatus and measuring method | |
| CN102944609B (en) | Complete multichannel white body welding spot detection system | |
| EP3165896A1 (en) | Device and method for a non-destructive measurement of mechanical properties | |
| CN108828069A (en) | A kind of key component fatigue life based on ultrasonic quantitative data determines longevity method | |
| CN206002199U (en) | Acoustic signal sensor probe fixing device | |
| CN104849351A (en) | Surface acoustic impedance detection method and system based on non-contact air coupling | |
| CN203117167U (en) | Ultrasonic detector for road steel bridge | |
| CN203069556U (en) | Ultrasonic detection device for highway steel bridge | |
| Dostál et al. | Visualisation of corrosion acoustic signals using quality tools | |
| CN201993345U (en) | Nondestructive test instrument for concrete structure | |
| Chaudhari et al. | Experimental investigation of crack detection in cantilever beam using vibration analysis | |
| KR101655214B1 (en) | Defect Detection Apparatus of Panel and Method Thereof | |
| Xu et al. | Study on single mode Lamb wave interaction with defect of plate by finite element model | |
| CN103968754B (en) | A kind of automatic laser surveys chi instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170811 Termination date: 20181009 |