CN109100423A - Damage of rock test experimental bed under a kind of ultrasonic activation - Google Patents
Damage of rock test experimental bed under a kind of ultrasonic activation Download PDFInfo
- Publication number
- CN109100423A CN109100423A CN201811193487.4A CN201811193487A CN109100423A CN 109100423 A CN109100423 A CN 109100423A CN 201811193487 A CN201811193487 A CN 201811193487A CN 109100423 A CN109100423 A CN 109100423A
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- rock
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
- G01H1/12—Measuring characteristics of vibrations in solids by using direct conduction to the detector of longitudinal or not specified vibrations
- G01H1/16—Amplitude
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/34—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor
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- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Acoustics & Sound (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention discloses damage of rock test experimental beds under a kind of ultrasonic activation, including guiding fixed mechanism, rock clamping device, hydraulic pressurization mechanism, ultrasonic vibration mechanism, rock amplitude measurement system, acoustic emission system and infrared signature measuring system；Damage of rock test experimental bed under the ultrasonic activation built using amplitude detection technology, acoustic emission, infrared detection technology can be realized and be tested in the dynamic of rock interior decaying situation and effective detritus depth rock interior crack growth, the variation of rock internal stress, stress wave；Can from many aspects under integration test ultrasonic activation rock damage process, determine optimal detritus parameter under the ultrasonic wave effect including frequency, static pressure, amplitude etc., reduce the deficiency and error of single detection method, improve conventional efficient, advantageous support is provided for the research of ultrasonic wave Breaking Rock Mechanism, is had the advantages that accurate, convenient, economical.
Description
Technical field
The present invention relates to geological core drillings, ultrasonic activation Breaking Rock Mechanism research field, and in particular to a kind of ultrasonic wave
Vibrate lower damage of rock test experimental bed.
Background technique
The broken problem of hard rock is solved using ultrasonic technology and is considered to have wide application prospect, is had in international coverage
Multiple scientific research institutions and scholar build laboratory experiment platform using ultrasonic technology and carry out laboratory test research, and achieve good
Test result and obtain multinomial patent.Such as the ultrasonic wave probing sampler of US National Aeronautics and Space Administration's research and development, Nanjing boat
A kind of one patent of invention of piezoelectric ceramic vibration probing model machine, Jilin University's application that empty space flight university develops: ultrasonic wave vibration
A kind of one patent of invention of dynamic detritus experimental provision and experimental method, Northeast Petroleum University's application: high-frequency vibration impact grinding
Rock experiment device.But above-mentioned test platform or patent focus primarily on the Macroscopic Factors such as revolving speed, frequency, static pressure to machinery
The influence of drilling speed, the test Shortcomings of the damage feature of rock under acting on ultrasonic activation, this patent collection acoustic emission,
Infrared detection technology, the micro- amplitude detection technology in surface design the new real-time monitoring ultrasonic wave that can be realized of one kind and shake in one
Movement is filled with the Comprehensive Experiment of lower rock interior crack extesion situation, stress wave attentuation situation, rock interior stress distribution situation
It sets.
Summary of the invention
The purpose of the present invention is using acoustic emission testing technology, infrared detection technology, the micro- amplitude detection technology of rock surface,
Build damage of rock test experimental bed under a kind of ultrasonic activation for studying ultrasonic wave Breaking Rock Mechanism.
Damage of rock test experimental bed under a kind of ultrasonic activation, including it is guiding fixed mechanism, rock clamping device, hydraulic
Pressing mechanism, ultrasonic vibration mechanism, rock amplitude measurement system, acoustic emission system and infrared signature measuring system；
Guiding fixed mechanism is made of four guide upright posts and pedestal, and four guide upright posts are connected through a screw thread and are mounted on bottom
On seat；
Rock clamping device is made of stop collar and bolt, and stop collar is mounted on the base by bolt, and rock sample is placed on limit
In the ring of position, and it is bolted on pedestal；
Hydraulic pressurization mechanism is made of hydraulic control box, hydraulic cylinder, first flange disk and second flange disk, two hydraulic cylinders
It is separately mounted to connect on first flange disk and with hydraulic control box, first flange disk, which is connected through a screw thread, is fixedly mounted on guiding
On column, hydraulic cylinder lower end is fixed with second flange disk, starts hydraulic control box, and first flange disk provides counter-force for hydraulic cylinder,
Static pressure is applied to rock sample via second flange disk, piezoelectric ceramic transducer and amplitude transformer by hydraulic cylinder；
Ultrasonic vibration mechanism is made of ultrasonic power, piezoelectric ceramic transducer and amplitude transformer, amplitude transformer lower end and rock
Sample contact, upper end are mounted on piezoelectric ceramic transducer, and piezoelectric ceramic transducer is mounted on second flange disk by bolt, the
Two ring flanges cover on guide upright post, and can be realized up and down direction and move freely, and open ultrasonic power, piezoelectric ceramics transducing
Device converts electrical energy into the mechanical energy of high-frequency vibration, and the Amplitude amplification effect of high frequency vibrating power is passed to rock sample through amplitude transformer；
Rock amplitude measurement system is surveyed by sliding block, guide rail, monitoring rod, cross guiding section, amplitude measurement instrument and amplitude data
Data processor composition is tried, guide rail is fixed on the base, and sliding block can be free to slide on guide rail and can be bolted on
On guide rail, monitoring rod is fixed on sliding block, and cross guiding section is bolted on mounting rod, and amplitude measurement instrument passes through bolt
Cross guiding section is fixed on above and with amplitude data test data processor to connect,
By adjusting cross be oriented to section so that amplitude measurement instrument probe it is vertical with rock sample surface be adjacent to, open amplitude data survey
Data processor is tried, amplitude measurement instrument is opened, the amplitude of acquisition is transferred to the processing of amplitude data test data by data line
Device is stored and processed；
Acoustic emission system is made of acoustic emission probe and sound emission test data processor, and acoustic emission probe is pasted
It rock sample surface specified location and is connect with acoustic emission test data processor, opens acoustic emission test data processor, sound hair
It penetrates data acoustic emission test data processor is transferred to by data line and stored and handled；
Infrared signature measuring system is made of infrared detecting set and infrared signature test data processor, infrared detecting set with
The connection of infrared signature test data processor, opens infrared detecting set, and infrared detecting set is infrared by rock surface in vibration processes
Feature is transferred to infrared signature test data processor via data line and is stored and handled.
Experimental method of the invention the following steps are included:
(1) rock sample is fixed on rock clamping device；
(2) it adjusts monitoring rod and cross guiding saves the monitoring location point for determining amplitude measurement instrument and guarantees amplitude measurement instrument
With rock sample perpendicular contact；
(3) acoustic emission probe is pasted in rock sample surface designated position；
(4) infrared detecting set is opened, adjusts infrared detecting set at a distance from rock sample；
(5) hydraulic control box is opened, the static pressure needed for applying to rock sample；
(6) by amplitude measurement instrument zeros data, while infrared signature test data processor, amplitude data test being opened
Data processor and sound emission test data processor；
(7) it opens ultrasonic wave and power supply occurs, start the experiment of ultrasonic activation detritus；
(8) each measuring system data are collected, comprehensive analysis processing probes into ultrasonic activation detritus rule.
The working principle of the invention:
1, under ultrasonic activation, rock sample surface can generate radial displacement, and amplitude measurement instrument being capable of dynamic acquisition rock surface
The radial displacement variable quantity of the maximum value of rock radial variations amount in the stationary monitoring point unit time, different monitoring points is different, because
This can judge that the stress wave that ultrasonic activation generates is passed in rock interior according to the collected data of monitoring point of amplitude measurement instrument
The decaying situation passed.
2, rock interior temperature can change under the action of ultrasonic activation load, and variable quantity and rock interior master
Linear between stress, infrared signature measuring system is able to record that external loads act on lower rock surface temperature change number
According to obtain the physical mechanics changing condition of rock interior.
3, inspection can be can be realized along with the generation of acoustic emission signal, acoustic emission system when rock interior crack propagation
Survey the position and quantity that rock interior crackle occurs.
It 4, can by the comprehensive analysis to rock sample surface amplitudes changing rule, temperature changing regularity, sound emission changing rule
The accurate changing rule for determining ultrasonic activation and acting on lower rock interior crackle.
Beneficial effects of the present invention:
The present invention has been built under a kind of ultrasonic activation using amplitude detection technology, acoustic emission, infrared detection technology
Damage of rock test experimental bed can be realized to rock interior crack growth, the variation of rock internal stress, stress wave in rock interior
The test of the dynamic of decaying situation and effective detritus depth；Can from many aspects under integration test ultrasonic activation rock damage
Process determines optimal detritus parameter under the ultrasonic wave effect including frequency, static pressure, amplitude etc., reduces single detection side
The deficiency and error of method improve conventional efficient, provide advantageous support for the research of ultrasonic wave Breaking Rock Mechanism, have accurately, just
Prompt, economic advantage.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is the main view of cross guiding section structure.
Fig. 3 is the top view of cross guiding section structure.
Fig. 4 is the right view of cross guiding section structure.
Specific embodiment
It please refers to shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, damage of rock test experimental bed under a kind of ultrasonic activation, including leads
It is surveyed to fixed mechanism, rock clamping device, hydraulic pressurization mechanism, ultrasonic vibration mechanism, rock amplitude measurement system, sound emission
Amount system and infrared signature measuring system；
Guiding fixed mechanism is made of four guide upright posts 5 and pedestal 16, and four guide upright posts 5 are connected through a screw thread installation
On pedestal 16；
Rock clamping device is made of stop collar 12 and bolt 13, and stop collar 12 is mounted on pedestal 16 by bolt 13,
Rock sample 9 is placed in stop collar 12, and is fixed on pedestal 16 by bolt 13；
Hydraulic pressurization mechanism is made of hydraulic control box 2, hydraulic cylinder 3, first flange disk 4 and second flange disk 6, two liquid
Cylinder pressure 3 is separately mounted to connect on first flange disk 4 and with hydraulic control box 2, and first flange disk 4 is connected through a screw thread fixed peace
On guide upright post 5,3 lower end of hydraulic cylinder and second flange disk 6 are fixed, start hydraulic control box 2, and first flange disk 4 is liquid
Cylinder pressure 3 provides counter-force, and static pressure is applied to rock via second flange disk 6, piezoelectric ceramic transducer 7 and amplitude transformer 8 by hydraulic cylinder 3
Sample 9；
Ultrasonic vibration mechanism is made of ultrasonic power 1, piezoelectric ceramic transducer 7 and amplitude transformer 8,8 lower end of amplitude transformer
It is contacted with rock sample 9, upper end is mounted on piezoelectric ceramic transducer 7, and piezoelectric ceramic transducer 7 is mounted on second flange by bolt
On disk 6,6 sets of second flange disk on guide upright post 5, and can be realized up and down direction and move freely, and open ultrasonic power 1,
Piezoelectric ceramic transducer 7 converts electrical energy into the mechanical energy of high-frequency vibration, makees the Amplitude amplification of high frequency vibrating power through amplitude transformer 8
With passing to rock sample 9；
Rock amplitude measurement system is by sliding block 14, guide rail 15, monitoring rod 17, cross guiding section 18,19 and of amplitude measurement instrument
Amplitude data test data processor 20 forms, and guide rail 15 is fixed on pedestal 16, and sliding block 14 being capable of the free skating on guide rail 15
It moves and can be bolted on guide rail 15, monitoring rod 17 is fixed on sliding block 14, and cross guiding section 18 is bolted
On mounting rod 17, amplitude measurement instrument 19 is bolted on cross guiding section 18 and handles with amplitude data test data
Device 20 connects, and makes the probe of amplitude measurement instrument 19 is vertical with 9 surface of rock sample to be adjacent to by adjusting cross guiding section 18, opens amplitude
Data test data processor 20, opens amplitude measurement instrument 19, and the amplitude of acquisition is transferred to amplitude data by data line and surveys
Examination data processor 20 is stored and processed；
Acoustic emission system is made of acoustic emission probe 11 and sound emission test data processor 21, acoustic emission probe 11
It pastes in 9 surface specified location of rock sample and is connect with acoustic emission test data processor 21, opened at acoustic emission test data
Device 21 is managed, sound emission data are transferred to acoustic emission test data processor 21 by data line and are stored and handled；
Infrared signature measuring system is made of infrared detecting set 10 and infrared signature test data processor 22, infrared acquisition
Instrument 10 is connect with infrared signature test data processor 22, opens infrared detecting set 10, infrared detecting set 10 will be in vibration processes
Rock surface infrared signature is transferred to infrared signature test data processor 22 via data line and is stored and handled.
Experimental method of the invention the following steps are included:
(1) rock sample 9 is fixed on rock clamping device；
(2) it adjusts monitoring rod 17 and cross guiding section 18 determines the monitoring location point of amplitude measurement instrument 19 and guarantees amplitude
Measuring instrument 19 and 9 perpendicular contact of rock sample；
(3) acoustic emission probe 11 is pasted in 9 surface designated position of rock sample；
(4) infrared detecting set 10 is opened, adjusts infrared detecting set 10 at a distance from rock sample 9；
(5) hydraulic control box 2 is opened, applies required static pressure to rock sample 9；
(6) by 19 zeros data of amplitude measurement instrument, while infrared signature test data processor 22, amplitude data being opened
Test data processor 20 and sound emission test data processor 21；
(7) it opens ultrasonic wave and power supply 1 occurs, start the experiment of ultrasonic activation detritus；
(8) each measuring system data are collected, comprehensive analysis processing probes into ultrasonic activation detritus rule.
Claims (1)
1. damage of rock test experimental bed under a kind of new ultrasonic activation, it is characterised in that: including being oriented to fixed mechanism, rock
Clamping device, hydraulic pressurization mechanism, ultrasonic vibration mechanism, rock amplitude measurement system, acoustic emission system and infrared spy
Levy measuring system；
Guiding fixed mechanism is made of four guide upright posts (5) and pedestal (16), and four guide upright posts (5) are connected through a screw thread peace
On pedestal (16)；
Rock clamping device is made of stop collar (12) and bolt (13), and stop collar (12) is mounted on pedestal by bolt (13)
(16) on, rock sample (9) is placed in stop collar (12), and is fixed on pedestal (16) by bolt (13)；
Hydraulic pressurization mechanism is made of hydraulic control box (2), hydraulic cylinder (3), first flange disk (4) and second flange disk (6), and two
A hydraulic cylinder (3) is separately mounted to connect on first flange disk (4) and with hydraulic control box (2), and first flange disk (4) passes through spiral shell
Line, which is connected and fixed, to be mounted on guide upright post (5), and hydraulic cylinder (3) lower end and second flange disk (6) are fixed；
Ultrasonic vibration mechanism is made of ultrasonic power (1), piezoelectric ceramic transducer (7) and amplitude transformer (8), amplitude transformer (8)
Lower end is contacted with rock sample (9), and upper end is mounted on piezoelectric ceramic transducer (7), and piezoelectric ceramic transducer (7) is installed by bolt
On second flange disk (6), second flange disk (6) covers on guide upright post (5), and can be realized up and down direction and move freely；
Rock amplitude measurement system is by sliding block (14), guide rail (15), monitoring rod (17), cross guiding section (18), amplitude measurement instrument
(19) it is formed with amplitude data test data processor (20), guide rail (15) is fixed on pedestal (16), and sliding block (14) can be
Free to slide and can be bolted on guide rail (15) on guide rail (15), monitoring rod (17) is fixed on sliding block (14), and ten
Word guiding section (18) is bolted on monitoring rod (17), and amplitude measurement instrument (19) is bolted on cross guiding section
(18) it is connect on and with amplitude data test data processor (20)；
Acoustic emission system is made of acoustic emission probe (11) and sound emission test data processor (21), acoustic emission probe
(11) it pastes in rock sample (9) surface specified location and is connect with acoustic emission test data processor (21)；
Infrared signature measuring system is made of infrared detecting set (10) and infrared signature test data processor (22), infrared acquisition
Instrument (10) is connect with infrared signature test data processor (22).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811193487.4A CN109100423A (en) | 2018-10-15 | 2018-10-15 | Damage of rock test experimental bed under a kind of ultrasonic activation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811193487.4A CN109100423A (en) | 2018-10-15 | 2018-10-15 | Damage of rock test experimental bed under a kind of ultrasonic activation |
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| Publication Number | Publication Date |
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| CN109100423A true CN109100423A (en) | 2018-12-28 |
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| CN201811193487.4A Pending CN109100423A (en) | 2018-10-15 | 2018-10-15 | Damage of rock test experimental bed under a kind of ultrasonic activation |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112611646A (en) * | 2021-01-05 | 2021-04-06 | 吉林大学 | High confining pressure rock mechanical property test device and test method |
| CN113552001A (en) * | 2021-07-22 | 2021-10-26 | 西南石油大学 | Device and method for testing radial stress acoustic wave of rock at high temperature |
| CN114059970A (en) * | 2021-11-16 | 2022-02-18 | 吉林大学 | Bidirectional rotary multifunctional experiment platform with vibration function |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112611646A (en) * | 2021-01-05 | 2021-04-06 | 吉林大学 | High confining pressure rock mechanical property test device and test method |
| CN113552001A (en) * | 2021-07-22 | 2021-10-26 | 西南石油大学 | Device and method for testing radial stress acoustic wave of rock at high temperature |
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| CN114059970A (en) * | 2021-11-16 | 2022-02-18 | 吉林大学 | Bidirectional rotary multifunctional experiment platform with vibration function |
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