CN108931445A - Rock dynamic mechanical property experimental provision under a kind of microwave radiation - Google Patents
Rock dynamic mechanical property experimental provision under a kind of microwave radiation Download PDFInfo
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- CN108931445A CN108931445A CN201810658794.9A CN201810658794A CN108931445A CN 108931445 A CN108931445 A CN 108931445A CN 201810658794 A CN201810658794 A CN 201810658794A CN 108931445 A CN108931445 A CN 108931445A
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- microwave radiation
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- refractory ceramics
- mechanical property
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- 230000005855 radiation Effects 0.000 title claims abstract description 61
- 239000011435 rock Substances 0.000 title claims abstract description 49
- 239000011214 refractory ceramic Substances 0.000 claims abstract description 29
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 238000012544 monitoring process Methods 0.000 claims abstract description 9
- 238000002474 experimental method Methods 0.000 claims abstract description 6
- 238000010521 absorption reaction Methods 0.000 claims description 19
- 238000012545 processing Methods 0.000 claims description 9
- 238000012216 screening Methods 0.000 claims description 8
- 239000000919 ceramic Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 238000011160 research Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 16
- 238000010438 heat treatment Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 229910052573 porcelain Inorganic materials 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000005422 blasting Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 102000016938 Catalase Human genes 0.000 description 1
- 108010053835 Catalase Proteins 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000001931 thermography Methods 0.000 description 1
- 238000004861 thermometry Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0032—Generation of the force using mechanical means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
- G01N2203/0226—High temperature; Heating means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
Abstract
The invention discloses rock dynamic mechanical property experimental provisions under a kind of microwave radiation, comprising: microwave radiation chamber；It is correspondingly arranged at the first refractory ceramics bar and the second refractory ceramics bar of microwave radiation chamber two sides, the first refractory ceramics bar and the second refractory ceramics bar slide through microwave radiation chamber side wall respectively to enter microwave radiation intracavitary to clamp sample；SHPB system, incident bar and transmission bar are respectively aligned to the first refractory ceramics bar and second one end of refractory ceramics bar far from sample；Microwave irradiation system is used for the intracavitary feed-in microwave of microwave radiation；Temperature monitoring system is measured in real time for the temperature to sample.The present invention, which can be realized, carries out dynamic characteristics research to rock in microwave field, realizes the rock dynamic experiments under microwave irradiation.
Description
Technical field
The invention belongs to rock dynamic forces under mining engineering and Geotechnical Engineering field more particularly to a kind of microwave radiation
Learn property experiment device.
Background technique
Catalase is the important link in mining process, studies the broken rock device and method of economical and efficient for getter
Journey plays a significant role.Presently, traditional mechanical rock breaking and blasting method are still the broken main means of mine hard rock, so
And the abrasion of cutter and blasting method bring safety and inefficiency problem are the masters in hard rock shattering process during mechanical rock breaking
Want problem.In recent decades, every country constantly seeks new efficient rock-breaking method, such as plasma rock breaking method, water jet
Method, heating power broken rock method, microwave method etc..
Microwave-assisted mechanical rock breaking method is utilized its essence is being combined using microwave heating technique and mechanical rock breaking technology
Microwave first reduces its intensity to rock heat, so that accelerating mechanical rock breaking efficiency reduces tool wear degree, is continuously opened with reaching
The purpose adopted.During microwave-assisted mechanical rock breaking, rock is at high operating temperatures to be crushed by dynamic impulse force, and rock
Mechanical property and temperature have it is close related, for researching high-temperature high strain-rate in the case where rock dynamic mechanical property,
A kind of relevant experimental facilities is developed with regard to most important, microwave irradiation system is added in the extensive SHPB system of connected applications thus,
There is certain meaning for the research for deepening rock breaking efficiency for researching high-temperature rock dynamic characteristics.
Summary of the invention
The application aims to solve at least one of the technical problems existing in the prior art.For this purpose, an object of the present invention
It is to provide rock dynamic mechanical property experimental provision under a kind of microwave radiation, which can be realized under microwave radiation directly
Impact load experiment, trip temperature of going forward side by side measurement are carried out to rock.
In order to solve the above technical problems, the technical solution adopted in the present invention is as follows:
Rock dynamic mechanical property experimental provision under a kind of microwave radiation, comprising:
Microwave radiation chamber；
It is correspondingly arranged at the first refractory ceramics bar and the second refractory ceramics bar of microwave radiation chamber two sides, described first
Refractory ceramics bar and the second refractory ceramics bar slide through respectively microwave radiation chamber side wall enter microwave radiation it is intracavitary to
Clamp sample；
SHPB system, incident bar and transmission bar are respectively aligned to the first refractory ceramics bar and the second refractory ceramics
The one end of bar far from sample；
Microwave irradiation system is used for the intracavitary feed-in microwave of microwave radiation；
Temperature monitoring system is measured in real time for the temperature to sample.
Further, the microwave irradiation system includes magnetron, the rectangular waveguide connecting with magnetron output end, passes through
Waveguide switch that annular water load is connect with rectangular waveguide connect with waveguide switch output end and is located at microwave radiation chamber top
The electromagnetic horn of sample described in portion's face.
Further, be attached at foil gauge on incident bar and transmission bar and ultra dynamic strain Acquisition Instrument, waveform storage instrument,
Computer is connected to form wave data processing system.
Further, microwave radiation bottom of chamber portion is formed with microwave absorption medium storage room, the microwave absorption medium
Microwave absorption is filled in storage room, microwave radiation chamber side wall can equipped with what is be connected to the microwave absorption medium storage room
The inlet and liquid outlet of opening and closing.
Further, refractory ceramics layer is covered on the microwave absorption.
Further, the magnetron, rectangular waveguide, annular water load and waveguide switch are integrated in microwave control cabinet
It is interior.
Further, the temperature monitoring system includes the infrared thermal imaging for being set to microwave radiation chamber transparent window side
Instrument, the infrared thermal imager are connected by data processing equipment with the computer of SHPB system.
Further, the microwave radiation chamber is sealed by the micro-wave screening cover of bottom opening and by micro-wave screening cover bottom opening
The pedestal closed surrounds, and is formed with metal screen layer on the inner wall of micro-wave screening cover.
Further, the positive and able to turn on or off of microwave radiation chamber is arranged in the transparent window.
Further, institute's transparent window is equipped with handle.
Compared with prior art, the beneficial effects of the present invention are:
(1) there is a set of high-temp and high-strength ceramics quarter butt between incident bar of the present invention, transmission bar and rock, because ceramic quarter butt is
It is not influenced by microwave and influence of the temperature to the wave impedance of ceramic bar can also be ignored, while also preventing the temperature of rock
Incident bar and transmission bar are had an impact by heat transfer, effectively prevent influence of the temperature to stress wave propagation, Ke Yishi
Rock dynamic experiments under the existing condition of high temperature, test are accurate and reliable.
(2) present invention takes microwave absorbing device to can be carried out absorption to extra microwave, reduces microwave for letter to reach
The influence of number acquisition, and can efficiently reduce damage of the microwave energy to microwave applicator of reflection.
(3) present invention is connected to a computer using infrared thermal imager by data processing equipment, can be in real time to rock
Stone temperature is monitored, and is handled using computer temperature pattern of the rock in irradiation process and heating curve.
(4) the intracavitary portion of microwave radiation is equipped with metal screen layer, can prevent extra microwave leakage from adversely affecting.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is microwave irradiation system schematic of the present invention；
Fig. 3 is microwave irradiation system of the present invention and microwave radiation chamber assembling schematic diagram；
Fig. 4 is microwave radiation chamber cross-sectional view of the present invention.
Fig. 5 is temperature monitoring system schematic diagram of the present invention.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Referring to Fig. 1-Fig. 5, in one embodiment, rock dynamic mechanical property experimental provision under a kind of microwave radiation,
The workbench 1 of SHPB system (Hopkinson pressure bar test macro) is equipped with microwave radiation chamber 2 and temperature monitoring system 3, temperature
Monitoring system is used to carry out real-time measurement to specimen temperature.It is symmetrically arranged with and passes through on the left side wall and right side wall of microwave radiation chamber 2
The road Tong Gan hole 4 (coaxial) is coaxially correspondingly provided with the first refractory ceramics bar 5 and the second high temperature resistant pottery in microwave radiation chamber 2
Porcelain bar 6, when test, sample holder is between the first refractory ceramics bar 5 and the second refractory ceramics bar 6；First high temperature resistant pottery
The other end matching of porcelain bar 5 slides through the road left side wall Shang Gan hole 4 and extends to outside microwave radiation chamber 2, the second high temperature resistant pottery
The other end matching of porcelain bar 6 slides through the road right side wall Shang Gan hole 4 and extends to outside microwave radiation chamber 2, and SHPB system enters
It penetrates bar 7 and transmission bar 8 is respectively aligned to the first refractory ceramics bar 5 and second one end of refractory ceramics bar 6 far from sample, be sticked
It is connected in the foil gauge 9 on incident bar 7 and transmission bar 8 with ultra dynamic strain Acquisition Instrument 10, waveform storage instrument 11, computer 12
Form wave data processing system.
It is equipped in microwave radiation top of chamber for the microwave irradiation system to the intracavitary feed-in microwave of microwave radiation.Specifically,
Microwave irradiation system includes microwave control cabinet 13, and magnetron 14 is equipped in microwave control cabinet 13, and the output end of magnetron 14 connects
Rectangular waveguide 15 is connect, rectangular waveguide 15 passes through annular water load 16 and connects waveguide switch 17, and 17 output end of waveguide switch connects
Electromagnetic horn 18 is connect, the output end of electromagnetic horn 18 protrudes into microwave radiation chamber 2 from microwave radiation top of chamber and face sample.
In the present embodiment, there is a set of high-temp and high-strength ceramics quarter butt between incident bar 7, transmission bar 8 and rock, because ceramics are short
Bar is not influenced by microwave and influence of the temperature to the wave impedance of ceramic bar can also be ignored, while also preventing rock
Temperature has an impact incident bar and transmission bar by heat transfer, effectively prevents influence of the temperature to stress wave propagation, can
To realize that the rock dynamic experiments under the condition of high temperature, measuring accuracy are high.
Referring to fig. 4, in another embodiment, microwave radiation chamber 2 is by the micro-wave screening cover 21 of bottom opening and by microwave screen
It covers the closed pedestal 22 of 21 bottom opening of cover to surround, metal screen layer 23 is formed on the inner wall of micro-wave screening cover 21, radiate
Inside cavity is provided with metal screen layer 23, can prevent extra microwave leakage from adversely affecting.It is formed on pedestal 22
There is microwave absorption medium storage room 24, microwave absorption is filled in microwave absorption medium storage room 24, is covered on microwave absorption
It is stamped refractory ceramics layer 25, absorption of the absorbent to extra microwave energy, microwave radiation can be had no effect on by microwave transparent
Chamber side wall is equipped with the inlet 26 and liquid outlet 27 of (as with valve) able to turn on or off that is connected to microwave absorption medium storage room 23,
Microwave absorption can be injected from inlet 26, be discharged from liquid outlet 27.Microwave absorption can be carried out extra microwave
It absorbs, to reach the influence for reducing microwave for signal acquisition, and the microwave energy that can efficiently reduce reflection shines microwave
Penetrate the damage of system.
Referring to Fig. 5, in another embodiment, for convenience of being observed sample and placed sample, microwave radiation chamber 2 just
Face is equipped with transparent window 19 able to turn on or off, handle 20 is equipped on transparent window 19, when needing to place sample, it is only necessary to open
Sample is put into microwave radiation chamber 2 by adjusting the first refractory ceramics bar 5 and the second refractory ceramics bar 6 by transparent window 19
Between spacing clamp sample.
Temperature monitoring system 3 includes being set to the intracavitary infrared thermal imager 31 positioned at transparent window side of microwave radiation,
Infrared thermal imager 31 is connected by data processing equipment 32 with the computer 12 of SHPB system, the present embodiment use it is infrared it is hot at
It is connected as instrument 31 passes through data processing equipment 32 with computer 12, rock temperature can be monitored in real time, and using meter
Calculation machine 12 handles temperature pattern of the rock in irradiation process and heating curve, as the specific of data processing equipment 32
Structure is that details are not described herein for the prior art.
The test process of this experimental provision is as follows:
Radiating enclosures, recombinant incident bar and transmission bar are assembled, incident bar and transmission bar are given and add stress, by rock sample
It is fixed in microwave radiation cavity and tight with the first refractory ceramics bar and the second refractory ceramics bar cramp；
Infrared thermometry instrument is opened, is pressurizeed to the bullet device in SHPB system, the time to be irradiated or test are set
Temperature to be achieved；
Microwave irradiation cabinet is opened, microwave irradiation is carried out to rock, according to the assigned temperature that the time of setting or rock reach,
Bullet valve is unclamped, rock is impacted, computer data acquisition and data processing are passed through.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (9)
1. rock dynamic mechanical property experimental provision under a kind of microwave radiation characterized by comprising
Microwave radiation chamber；
It is correspondingly arranged at the first refractory ceramics bar and the second refractory ceramics bar of microwave radiation chamber two sides, the first resistance to height
Warm ceramic bar and the second refractory ceramics bar slide through microwave radiation chamber side wall respectively, and to enter microwave radiation intracavitary to clamp
Sample；
SHPB system, incident bar and transmission bar are respectively aligned to the first refractory ceramics bar and the second refractory ceramics bar is remote
One end from sample；
Microwave irradiation system is used for the intracavitary feed-in microwave of microwave radiation；
Temperature monitoring system is measured in real time for the temperature to sample.
2. rock dynamic mechanical property experimental provision under microwave radiation according to claim 1, it is characterised in that: described micro-
Wave irradiation system includes magnetron, the rectangular waveguide connecting with magnetron output end, by annular water load and rectangular waveguide company
The waveguide switch that connects, the loudspeaker day for being connect with waveguide switch output end and being located at sample described in microwave radiation top of chamber face
Line.
3. rock dynamic mechanical property experimental provision under microwave radiation according to claim 2, it is characterised in that: the magnetic
Keyholed back plate, rectangular waveguide, annular water load and waveguide switch are integrated in microwave control cabinet.
4. rock dynamic mechanical property experimental provision under microwave radiation according to claim 2, it is characterised in that: described micro-
Wave radiation bottom of chamber portion is formed with microwave absorption medium storage room, is filled with microwave absorption in the microwave absorption medium storage room
Agent, microwave radiation chamber side wall are equipped with the inlet and liquid outlet able to turn on or off being connected to the microwave absorption medium storage room.
5. rock dynamic experiments device according to claim 4, it is characterised in that: covered on the microwave absorption
There is refractory ceramics layer.
6. rock dynamic mechanical property experimental provision under microwave radiation according to claim 4, it is characterised in that: described micro-
Wave radiation chamber is surrounded by the micro-wave screening cover of bottom opening and by the closed pedestal of micro-wave screening cover bottom opening, in micro-wave screening
Metal screen layer is formed on the inner wall of cover.
7. rock dynamic mechanical property experimental provision under microwave radiation according to claim 1, it is characterised in that: the temperature
Spending monitoring system includes being set to the infrared thermal imager of microwave radiation chamber transparent window side, and the infrared thermal imager passes through
Data processing equipment is connected with the computer of SHPB system.
8. rock dynamic mechanical property experimental provision under microwave radiation according to claim 7, it is characterised in that: described
The positive and able to turn on or off of microwave radiation chamber is arranged in bright window.
9. rock dynamic mechanical property experimental provision under microwave radiation according to claim 8, it is characterised in that: institute is transparent
Window is equipped with handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810658794.9A CN108931445A (en) | 2018-06-25 | 2018-06-25 | Rock dynamic mechanical property experimental provision under a kind of microwave radiation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810658794.9A CN108931445A (en) | 2018-06-25 | 2018-06-25 | Rock dynamic mechanical property experimental provision under a kind of microwave radiation |
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| CN108931445A true CN108931445A (en) | 2018-12-04 |
Family
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| CN201810658794.9A Pending CN108931445A (en) | 2018-06-25 | 2018-06-25 | Rock dynamic mechanical property experimental provision under a kind of microwave radiation |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109856165A (en) * | 2019-03-29 | 2019-06-07 | 西安建筑科技大学 | The experimental rig and test method that a kind of microwave influences soil nature matter |
| CN110261242A (en) * | 2019-07-12 | 2019-09-20 | 中南大学 | A kind of Hopkinson bar rock sample impact test apparatus and method |
| CN110455741A (en) * | 2019-08-19 | 2019-11-15 | 广东工业大学 | A kind of system for obtaining the real-time infrared spectroscopy in vibration test |
| CN110501145A (en) * | 2019-07-03 | 2019-11-26 | 中国科学院武汉岩土力学研究所 | A kind of experimental system and test method of TBM driving auxiliary rock |
| CN111007155A (en) * | 2019-12-25 | 2020-04-14 | 中南大学 | Rock damage monitoring system under temperature-pressure coupling effect |
| CN111024529A (en) * | 2019-12-09 | 2020-04-17 | 中南大学 | Method for testing dynamic mechanical properties of rock at high temperature and heating furnace matched with method |
| CN111458239A (en) * | 2020-04-12 | 2020-07-28 | 北京工业大学 | Real-time stress wave propagation test system in high-temperature environment under microwave heating |
| CN111594040A (en) * | 2019-02-19 | 2020-08-28 | 中国石油化工股份有限公司 | Microwave rock breaking test device |
| CN111912871A (en) * | 2020-06-11 | 2020-11-10 | 西安理工大学 | Microwave-assisted rock breaking irradiation test device and test method thereof |
| CN111929150A (en) * | 2020-08-25 | 2020-11-13 | 中南大学 | Surrounding rock dynamics test system and method for railway tunnel under rainy mountain area |
| CN112067235A (en) * | 2020-09-14 | 2020-12-11 | 中国空气动力研究与发展中心高速空气动力研究所 | Horn antenna S for reducing high-power microwave irradiation wind tunnel test11Arrangement of parameters |
| CN116519500A (en) * | 2023-04-19 | 2023-08-01 | 山东科技大学 | Method for acquiring dynamic temperature cloud picture of Hopkinson pressure bar sample |
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| CN111594040A (en) * | 2019-02-19 | 2020-08-28 | 中国石油化工股份有限公司 | Microwave rock breaking test device |
| CN109856165A (en) * | 2019-03-29 | 2019-06-07 | 西安建筑科技大学 | The experimental rig and test method that a kind of microwave influences soil nature matter |
| CN110501145A (en) * | 2019-07-03 | 2019-11-26 | 中国科学院武汉岩土力学研究所 | A kind of experimental system and test method of TBM driving auxiliary rock |
| CN110261242A (en) * | 2019-07-12 | 2019-09-20 | 中南大学 | A kind of Hopkinson bar rock sample impact test apparatus and method |
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Application publication date: 20181204 |