CN111413198B - Acoustic emission-resistivity-stress synchronous testing device and method for rock - Google Patents
Acoustic emission-resistivity-stress synchronous testing device and method for rock Download PDFInfo
- Publication number
- CN111413198B CN111413198B CN202010259857.0A CN202010259857A CN111413198B CN 111413198 B CN111413198 B CN 111413198B CN 202010259857 A CN202010259857 A CN 202010259857A CN 111413198 B CN111413198 B CN 111413198B
- Authority
- CN
- China
- Prior art keywords
- acoustic emission
- resistivity
- rock
- sleeve
- stress
- 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.)
- Active
Links
Images
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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/041—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body
-
- 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
- G01N29/14—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 using acoustic emission techniques
-
- 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
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
- G01N2291/0232—Glass, ceramics, concrete or stone
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Biochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Acoustics & Sound (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a device and a method for synchronously testing acoustic emission, resistivity and stress of rock, which have the advantages of simple and compact structure and convenience in operation. Including supporting the flat board, it is equipped with the support riser to support dull and stereotyped upper surface, the support riser has the medium plate, both sides board, be equipped with the spout on each curb plate respectively, install fixed main part in the spout, fixed main part includes the sleeve, the cooperation has fixation nut on the sleeve, fix the sleeve centre gripping on the curb plate, telescopic hole is the shoulder hole, the path section of shoulder hole is used for installing the acoustic emission probe, be equipped with the packing ring in proper order in the path section of shoulder hole, compression spring, a section of thick bamboo pushes away, the path section of shoulder hole, form the location step between the path section of large diameter, the aperture of packing ring is less than the aperture of shoulder hole path section, a tail end axial positioning for the acoustic emission probe, the packing ring, compression spring, the hole of a section of thick bamboo supplies the wire of acoustic emission probe to pass through, radially be equipped with set screw on the sleeve, an axial position for locking a section of pushing away.
Description
Technical Field
The invention relates to the technical field of material testing, in particular to a device and a method for synchronously testing acoustic emission-resistivity-stress in a rock test piece loading and unloading process.
Background
The phenomenon that local sources in the material quickly release energy to generate transient elastic waves is called acoustic emission (AE for short). Acoustic emission is a common physical phenomenon, and most materials deform and break with acoustic emissions, ranging in frequency from infrasonic frequencies of a few HZ to ultrasonic frequencies of several MHZ. However, many materials have very weak acoustic emission signal strength, which cannot be directly heard by human ears, and can be detected by sensitive electronic instruments. The technology of detecting, recording, analyzing and using instruments to detect, record and analyze acoustic emission signals and to infer the source of the acoustic emission using the acoustic emission signals has become an acoustic emission technology.
Rock electrical properties are one of the rock physical mechanical properties, and its electrical parameters can be expressed in terms of resistivity. During the process of load damage of the rock, the rock is influenced by various factors, the development and the expansion of defects such as pore cracks and the like, the change of the porosity, the pore structure and the conductive property can cause the resistivity of the rock to obviously change, and the stress state in the rock can be judged by observing the change of the resistivity of the rock and reversely deducing the mechanical property of the rock, so that the method has important significance for predicting the damage degree of the rock.
When acoustic emission detection is carried out, various sensors are used for directly detecting acoustic emission signals in materials, so that the fixing work of the sensors is very important to accurately detect the acoustic emission signals generated in the materials, but due to the complexity of actual working conditions, the acoustic emission probes can be effectively fixed by spending considerable time and energy under many conditions, and much inconvenience is brought. Some existing sensor fixing devices mostly adopt a magnetic adsorption fixing mode, but the magnetic adsorption fixing mode can only be applied to detecting ferromagnetic materials to be detected, and objects of indoor loading tests are basically rocks, so that the magnetic adsorption fixing mode cannot be applied to rocks which are non-ferromagnetic materials, and other fixing modes are required. To indoor rock loading test's acoustic emission signal detection, mostly adopt simple and easy modes such as sticky tape ligature or rubber band ligature now, but these modes can not realize stabilizing to the probe yet, and the ligature is very inconvenient when probe quantity is more, consuming time hard, and the ligature effect is not good enough, direct influence acoustic emission signal testing result.
At present, the method for testing the resistivity of the rock mainly comprises a dipolar method and a quadrupole method, wherein the dipolar method and the quadrupole method are relatively simple and high in efficiency, and the quadrupole method has the advantages that no contact resistance exists during measurement, but the resistance of the rock is large, and the measurement precision of the conventional dipolar method and the quadrupole method is usually low.
Therefore, in order to research the stress characteristics of the rock and predict the damage degree of the rock by using an acoustic emission testing technology and a resistivity testing technology, it is necessary to provide a rapid and reliable acoustic emission testing method and a resistivity testing method to realize the synchronous testing of acoustic emission-resistivity-stress.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a device and a method for synchronously testing acoustic emission, resistivity and stress of rock, which have simple and compact structure and are convenient to operate.
The purpose of the invention is realized by the following steps:
an acoustic emission-resistivity-stress synchronous testing device for rock,
comprises a supporting flat plate, supporting vertical plates are symmetrically arranged on the upper surface of the supporting flat plate, the cross sections of the supporting vertical plates are C-shaped, so that each supporting vertical plate respectively forms a middle plate and two side plates, the four side plates are distributed on the same circumference,
each side plate is respectively provided with a sliding chute along the vertical direction, a fixing main body is respectively arranged in each sliding chute, each fixing main body comprises a sleeve, the sleeve is radially inserted into the corresponding sliding chute along the side plate, the sleeve is provided with an external thread, and two fixing nuts are matched through the external thread, so that the sleeve is clamped and fixed on the side plate, and the position can be adjusted up and down and the position can be adjusted in the radial direction;
the telescopic hole is the shoulder hole, and the path section of shoulder hole is towards the centre of a circle of four curb plate circumferences that distribute, and the path section of shoulder hole is used for installing the acoustic emission probe, and supplies acoustic emission probe axial slip, is equipped with packing ring, compression spring, ejector sleeve in the path section of shoulder hole in proper order, the path section of large of shoulder hole is stretched out to the one end of ejector sleeve, forms the location step between the path section of small of shoulder hole, the path section of large for inject the extreme position of packing ring, the aperture of packing ring is less than the aperture of shoulder hole path section for to the tail end axial positioning of acoustic emission probe, the hole of packing ring, compression spring, ejector sleeve supplies the wire of acoustic emission probe to pass through, radially be equipped with set screw on the sleeve for the axial position of locking ejector sleeve.
Preferably, the support flat plate and the support vertical plate are fixed into a whole by screws or welding.
Preferably, the gasket, the compression spring and the push cylinder are welded into a whole.
Preferably, the side plates are arc-shaped plates, and the support flat plates are circular and correspond to the distributed circumferences of the four side plates.
Preferably, a stepped mounting hole is formed in the middle of the supporting flat plate, a small-diameter section at the upper part of the stepped mounting hole is used for placing a lower pressure head, and a large-diameter section at the lower part of the stepped mounting hole is used for positioning the sensor mounting plate on a base of the rock testing machine.
Preferably, the sliding groove is a rectangular sliding groove.
Preferably, the sleeve is provided with a gas release hole at the position corresponding to the compression spring,
preferably, a bar-shaped sliding groove is vertically formed in the middle plate, a transverse displacement sensor clamping sleeve is fixed in the bar-shaped sliding groove through a nut, and a set screw is radially arranged on the transverse displacement sensor clamping sleeve and used for locking the position of the transverse displacement sensor. The clamping sleeve of the transverse displacement sensor is T-shaped, and the position can be adjusted up and down and cannot be adjusted radially by locking the clamping sleeve through a single nut. The transverse displacement sensor is used for measuring the transverse deformation of the test piece.
A method for synchronously testing acoustic emission, resistivity and stress of rock,
s1, adjusting the fixing main body provided with the acoustic emission probe to a proper position for fixing;
s2, placing the stress synchronous testing device on a bearing seat of a pressure testing machine, placing a lower pressure head, and coating a couplant on an acoustic emission probe;
s3, placing a lower electrode and a lower insulating gasket for measuring the resistivity on the lower pressure head, wherein the lower insulating gasket is arranged below the lower electrode;
s4, placing a rock test piece, applying thrust to the two push cylinders on the supporting vertical plate on one side to adjust the position of the rock test piece, and then applying thrust to the two push cylinders on the supporting vertical plate on the other side to enable the acoustic emission probes to tightly push the rock test piece, and locking the axial position of the push cylinders;
s5, placing an upper electrode and an upper insulating gasket for measuring the resistivity at the upper end of the rock test piece, wherein the upper insulating gasket is arranged above the upper electrode, and then placing an upper pressure head;
and S6, connecting the rock test piece and the standard resistor in series, applying voltage to the rock test piece and the standard resistor through a power supply, respectively collecting the voltage at two ends of the rock test piece and the standard resistor through a voltmeter, and enabling the pressure testing machine and the acoustic emission probe to work to realize synchronous testing of acoustic emission-resistivity-stress.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
after the signal line and the probe are connected for the first time, the acoustic emission probe fixing device does not need to perform connection work subsequently until the test is taken down, the probe can be fixed only by manually applying a little thrust in the middle, the device is simple in structure, convenient and quick to operate, good in signal detection effect and capable of quickly realizing the synchronous test of acoustic emission-resistivity-stress of the rock test piece.
The resistivity test adopts a two-pole method, two copper sheet electrodes are clamped at two ends of a rock test piece, constant voltage is applied by a dry battery box, and two universal meters respectively collect the voltage of a standard resistor and the voltage difference between two poles of the rock test piece. The components are connected with a copper wire system through a clamp to carry out testing. After the acoustic emission probe is fixed and the copper sheet electrodes for resistivity testing are arranged, the rock pressure testing machine, the battery box switch and the acoustic emission system are opened, and then the acoustic emission-resistivity-stress synchronous testing can be achieved. The acoustic emission-resistivity-stress synchronous testing device is simple and compact in structure and convenient to operate, can quickly finish acoustic emission-resistivity-stress synchronous testing, saves testing time, and improves measuring accuracy.
Drawings
FIG. 1 is a top view of a sensor mounting plate in a uniaxial compression test of an RMT-150C rock mechanics testing system;
FIG. 2 is a top view of the testing device;
FIG. 3 is a front view of the testing device;
FIG. 4 is a side view of the testing device;
FIG. 5 is a longitudinal section of the test apparatus;
FIG. 6 is a three-dimensional view of the testing apparatus;
FIG. 7 is a general layout of an acoustic emission-resistivity-stress synchronization test method;
FIG. 8 is a circuit diagram of the acoustic emission-resistivity-stress synchronous testing method.
Reference numerals
In the attached drawing, 1, a support flat plate, 2, a fixed main body, 3, a clamping sleeve of a transverse displacement sensor, 4, a support vertical plate, 5, a fixing screw, 6, a rectangular sliding groove, 7, a positioning screw, 8, a push cylinder, 9, a compression spring, 10, a gasket, 11, a sleeve, 12, a positioning step, 13, a fixing nut, 14, an upper pressure head, 15, an upper insulating gasket, 16, an upper electrode, 17, a rock test piece, 18, an acoustic emission probe, 19, a lower pressure head, 20, a lower electrode, 21, a lower insulating gasket, 22, a universal meter I, 23, a universal meter II, 24, a standard resistor, 25, a clamp, 26, a power supply, 27 and a copper wire.
Detailed Description
Referring to fig. 1 to 8, the embodiment of the device and the method for synchronously testing acoustic emission, resistivity and stress of a rock is specifically a synchronous testing device and a testing method matched with an RMT-150C type rock compression testing machine, which are used for monitoring acoustic emission signals and resistivity parameters of a standard rock test piece (50mm × 100mm) in an indoor rock loading test, the four involved acoustic emission probes are of an SR150S type, a push cylinder, a compression spring and a gasket are connected into a whole by welding, the acoustic emission probes are adjusted by pushing the push cylinder, and under the action of stable elastic force of the compression spring, the probes and the rock test piece are always in stable coupling force and are in close contact. The volume of the test piece expands after being pressed, the probe is stressed and then is transferred to the spring through the cushion block, so that the probe can elastically stretch when being stressed, the hard support is avoided, and the function of protecting the probe is achieved. And the spring provides stable pressure, so that stable coupling force is always generated between the probe and the rock test piece, and the probe and the rock test piece are in close contact. The spring elasticity is moderate, too small to easily damage the probe, and too large to provide a stable coupling force.
The testing device comprises a supporting flat plate 1 which is circular, supporting vertical plates 4 are symmetrically and vertically arranged on two sides of the upper surface of the supporting flat plate 1, the cross section of each supporting vertical plate 4 is C-shaped and comprises a middle plate and two side plates, the middle plate is a flat plate, the side plates are arc-shaped plates, in the embodiment, the supporting flat plate 1 adopts a sensor mounting plate in a single-shaft compression test of an RMT-150C rock mechanical test system, and the side plates are welded to be transformed.
The side plate is vertically provided with rectangular sliding grooves 6, the fixing body 2 is radially inserted into each rectangular sliding groove 6 along the side plate, external threads are arranged on the fixing body 2 and matched with two fixing nuts 13, the fixing body 2 is clamped and fixed on the side plate and can be adjusted in position from top to bottom and adjusted in position in a radial direction, the middle plate is also vertically provided with rectangular sliding grooves, and transverse displacement sensor clamping sleeves 3 are fixed in the rectangular sliding grooves through nuts and can be adjusted in position from top to bottom and cannot be adjusted in position in the radial direction.
Fixed main part 2 includes sleeve 11, is equipped with location step 12, packing ring 10, compression spring 9, pusher 8 from inside to outside in proper order in sleeve 11's the hole, and sleeve 11 corresponds compression spring 9's position and is equipped with disappointing hole, the hole aperture that sleeve 11 corresponds location step 12 department equals the acoustic emission probe diameter and equals, supplies the acoustic emission probe free slip, the aperture of packing ring 10 is less than the hole aperture for to acoustic emission probe axial positioning, compression spring 9, pusher 8 all are equipped with the hole of stepping down, and the hole aperture of stepping down the hole equals the hole aperture, still radially be equipped with set screw 7 on sleeve 11 for the position of locking pusher 8.
A method for synchronously testing acoustic emission, resistivity and stress of rock is characterized by comprising the following steps:
firstly, adjusting the fixing main body 2 to a proper position for fixing, screwing a nut for fixing, then passing a signal wire through a push cylinder, and then connecting the signal wire with the probe 18 for fixing;
then, the whole device is placed on a bearing seat of a pressure tester, a lower pressure head 19 is placed, and a certain amount of coupling agent is smeared on an acoustic emission probe;
then, a lower electrode 20 and a plastic insulating gasket 21 for measuring the resistivity are placed on the lower pressure head, and the plastic gasket is arranged below the copper sheet;
secondly, placing the rock test pieces 17, wherein because the sizes of all the rock test pieces are different, if the rock test pieces are ensured to be in the positive center of the lower pressure head and not to be eccentrically pressed, firstly, applying thrust to two push cylinders on one side to adjust the positions of the rock test pieces, then applying thrust to two push cylinders on the other side to enable the probe to be in close contact with the rock test pieces, and then screwing the positioning screws 7 tightly;
after the sensitivity is calibrated, an upper electrode 16 and an insulating gasket 15 for measuring the resistivity are arranged at the upper end of the rock test piece, a plastic gasket is arranged above the copper sheet, and then an upper pressure head 14 is arranged;
a dry battery box (power supply) 26 consisting of 60 sections of 1.5V dry batteries applies a constant voltage of 90V, a universal meter I and a universal meter II respectively collect the voltage of a standard resistor 24 and the voltage difference between two electrodes of a rock 17, all elements are connected by adopting a clamp 25 and a copper wire 27, and finally, a pressure testing machine, a battery box switch and an acoustic emission testing system are simultaneously opened, so that the synchronous testing of acoustic emission-resistivity-stress can be realized.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (9)
1. An acoustic emission-resistivity-stress synchronous testing device for rock is characterized in that:
the support device comprises a support flat plate (1), wherein support vertical plates (4) are symmetrically arranged on the upper surface of the support flat plate (1), the cross sections of the support vertical plates (4) are C-shaped, so that the support vertical plates (4) respectively form a middle plate and two side plates, and the four side plates are distributed on the same circumference;
each side plate is vertically provided with a sliding chute (6), a fixed main body (2) is arranged in each sliding chute (6), each fixed main body (2) comprises a sleeve (11), each sleeve (11) is radially inserted into the corresponding sliding chute (6) along the side plate, the sleeve (11) is provided with an external thread, and two fixing nuts (13) are matched through the external thread to clamp and fix the sleeve (11) on the side plate;
the inner hole of the sleeve (11) is a stepped hole, the small diameter section of the stepped hole faces to the circle centers of the circumferences distributed on the four side plates, the small diameter section of the stepped hole is used for installing an acoustic emission probe, and the sound emission probe can axially slide, a gasket (10), a compression spring (9) and a push cylinder (8) are sequentially arranged in the large-diameter section of the stepped hole, one end of the push cylinder (8) extends out of the large-diameter section of the stepped hole, a positioning step (12) is formed between the small-diameter section and the large-diameter section of the stepped hole, for defining the extreme position of the gasket (10), the bore diameter of the gasket (10) being smaller than the bore diameter of the stepped bore small diameter section, used for axially positioning the tail end of the acoustic emission probe, the inner holes of the gasket (10), the compression spring (9) and the push cylinder (8) are used for the lead of the acoustic emission probe to pass through, and the sleeve (11) is radially provided with a positioning screw (7) for locking the axial position of the push cylinder (8).
2. The acoustic emission-resistivity-stress synchronous testing device for the rock according to claim 1, wherein: the support flat plate (1) and the support vertical plate (4) are fixed into a whole through a screw (5) or welded and fixed.
3. The acoustic emission-resistivity-stress synchronous testing device for the rock according to claim 1, wherein: the gasket, the compression spring (9) and the push cylinder are welded into a whole.
4. The acoustic emission-resistivity-stress synchronous testing device for the rock according to claim 1, wherein: the side plates are arc-shaped plates, and the support flat plate (1) is circular and corresponds to the distributed circumferences of the four side plates.
5. The acoustic emission-resistivity-stress synchronous testing device for the rock according to claim 1, wherein: a step mounting hole is formed in the middle of the support flat plate (1), the small-diameter section at the upper portion of the step mounting hole is used for placing a lower pressure head, and the large-diameter section at the lower portion of the step mounting hole is used for positioning the sensor mounting plate on a base of the rock testing machine.
6. The acoustic emission-resistivity-stress synchronous testing device for the rock according to claim 1, wherein: the sliding groove (6) is a rectangular sliding groove (6).
7. The acoustic emission-resistivity-stress synchronous testing device for the rock according to claim 1, wherein: and the sleeve (11) is provided with an air leakage hole corresponding to the compression spring (9).
8. The acoustic emission-resistivity-stress synchronous testing device for the rock according to claim 1, wherein: the middle plate is vertically provided with a strip-shaped sliding groove, a transverse displacement sensor clamping sleeve (3) is fixed in the strip-shaped sliding groove through a nut, and a set screw is radially arranged on the transverse displacement sensor clamping sleeve (3) and used for locking the position of the transverse displacement sensor.
9. A synchronous testing method of the acoustic emission-resistivity-stress synchronous testing device for rock according to claim 1, characterized in that:
s1, adjusting the fixed main body (2) provided with the acoustic emission probe (18) to a proper position for fixing;
s2, placing the stress synchronous testing device on a bearing seat of a pressure testing machine, placing a lower pressure head (19), and coating a couplant on an acoustic emission probe;
s3, placing a lower electrode (20) for measuring the resistivity and a lower insulating gasket (21) on the lower pressure head, wherein the lower insulating gasket (21) is arranged below the lower electrode (20);
s4, placing a rock test piece (17), applying thrust to two push cylinders on the supporting vertical plate (4) on one side to adjust the position of the rock test piece, and then applying thrust to two push cylinders on the supporting vertical plate (4) on the other side to enable each acoustic emission probe to tightly push the rock test piece, and locking the axial position of a push cylinder (8);
s5, placing an upper electrode (16) and an upper insulating gasket (15) for measuring the resistivity at the upper end of the rock test piece, wherein the upper insulating gasket (15) is arranged above the upper electrode (16), and then placing an upper pressure head (14);
s6, connecting the rock test piece and the standard resistor (24) in series, applying voltage to the rock test piece and the standard resistor (24) through a power supply, respectively collecting the voltage at two ends of the rock test piece and the standard resistor (24) through a voltmeter, and enabling the pressure testing machine and the acoustic emission probe to work to realize synchronous testing of acoustic emission-resistivity-stress.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010259857.0A CN111413198B (en) | 2020-04-03 | 2020-04-03 | Acoustic emission-resistivity-stress synchronous testing device and method for rock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010259857.0A CN111413198B (en) | 2020-04-03 | 2020-04-03 | Acoustic emission-resistivity-stress synchronous testing device and method for rock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111413198A CN111413198A (en) | 2020-07-14 |
| CN111413198B true CN111413198B (en) | 2022-08-16 |
Family
ID=71493356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010259857.0A Active CN111413198B (en) | 2020-04-03 | 2020-04-03 | Acoustic emission-resistivity-stress synchronous testing device and method for rock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111413198B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112285214A (en) * | 2020-10-15 | 2021-01-29 | 中铁二十一局集团第五工程有限公司 | Acoustic emission probe fixing device and method |
| CN114577380B (en) * | 2020-11-30 | 2024-04-30 | 中国石油天然气股份有限公司 | Measuring device for determining a direction of ground stress and method for determining a direction of ground stress |
| CN112378741A (en) * | 2020-12-02 | 2021-02-19 | 青岛理工大学 | Acoustic emission probe fixing device and method for indoor rock mechanical test |
| CN113176341A (en) * | 2021-04-25 | 2021-07-27 | 江西理工大学 | Fixing device and method for acoustic emission probe in Brazilian split test |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936859A (en) * | 2010-07-23 | 2011-01-05 | 中国科学院武汉岩土力学研究所 | Calibration device for rock radial deformation sensor |
| CN104677994A (en) * | 2015-02-09 | 2015-06-03 | 四川大学 | Integrated acoustic emission testing sensor locating device for rock damage test |
| CN106324102A (en) * | 2016-11-01 | 2017-01-11 | 金陵科技学院 | Acoustic emission flaw detection vehicle for tunnel |
| KR101824051B1 (en) * | 2017-06-07 | 2018-02-01 | 한국남동발전 주식회사 | Pulverizer condition monitoring system for thermal power plant and the condition monitoring method thereof |
| CN108226289A (en) * | 2017-12-22 | 2018-06-29 | 太原理工大学 | The device and test specimen test method of acoustic emission probe and microseism probe are installed simultaneously |
| CN108445085A (en) * | 2018-06-04 | 2018-08-24 | 东北大学 | A kind of the acoustic emission probe accurate-location device and application method of Rock Under Uniaxial Compression experiment |
| CN108519280A (en) * | 2018-03-28 | 2018-09-11 | 安徽理工大学 | A kind of expansible acoustic emission signal reception ring and application method |
| CN109142536A (en) * | 2018-10-17 | 2019-01-04 | 中南大学 | High-precision rock interior damages real-time locating and detecting device |
| CN109459318A (en) * | 2018-12-19 | 2019-03-12 | 北京科技大学 | A kind of active and passive real-time sonic test approved sample device and method of rock failure mechanism of rock process |
-
2020
- 2020-04-03 CN CN202010259857.0A patent/CN111413198B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936859A (en) * | 2010-07-23 | 2011-01-05 | 中国科学院武汉岩土力学研究所 | Calibration device for rock radial deformation sensor |
| CN104677994A (en) * | 2015-02-09 | 2015-06-03 | 四川大学 | Integrated acoustic emission testing sensor locating device for rock damage test |
| CN106324102A (en) * | 2016-11-01 | 2017-01-11 | 金陵科技学院 | Acoustic emission flaw detection vehicle for tunnel |
| KR101824051B1 (en) * | 2017-06-07 | 2018-02-01 | 한국남동발전 주식회사 | Pulverizer condition monitoring system for thermal power plant and the condition monitoring method thereof |
| CN108226289A (en) * | 2017-12-22 | 2018-06-29 | 太原理工大学 | The device and test specimen test method of acoustic emission probe and microseism probe are installed simultaneously |
| CN108519280A (en) * | 2018-03-28 | 2018-09-11 | 安徽理工大学 | A kind of expansible acoustic emission signal reception ring and application method |
| CN108445085A (en) * | 2018-06-04 | 2018-08-24 | 东北大学 | A kind of the acoustic emission probe accurate-location device and application method of Rock Under Uniaxial Compression experiment |
| CN109142536A (en) * | 2018-10-17 | 2019-01-04 | 中南大学 | High-precision rock interior damages real-time locating and detecting device |
| CN109459318A (en) * | 2018-12-19 | 2019-03-12 | 北京科技大学 | A kind of active and passive real-time sonic test approved sample device and method of rock failure mechanism of rock process |
Non-Patent Citations (1)
| Title |
|---|
| 岩石声波-声发射一体化测试装置的研制与应用;李浩然等;《岩土力学》;20160110(第01期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111413198A (en) | 2020-07-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111413198B (en) | Acoustic emission-resistivity-stress synchronous testing device and method for rock | |
| IL162847A0 (en) | Electrical feedback detection system for multi-point probes | |
| CN103149252B (en) | A kind of resistance-type steel bridge fatigue crack detection device | |
| CN106768617B (en) | Separately excited type vibration cylinder pressure transducer performance test methods | |
| CN207486455U (en) | A kind of pipeline leakage testing sensor fastening device | |
| CN100474577C (en) | Base board and electric test method therefor | |
| CN106526325B (en) | Nondestructive measurement tool for crimping resistance | |
| CN112629728A (en) | Aluminum alloy residual stress testing device and method based on eddy current | |
| CN113758997B (en) | Metal sample micro-damage detection device based on frequency mixing nonlinear ultrasonic guided wave | |
| CN107676636B (en) | A kind of pipeline leakage testing sensor fixing means | |
| CN216562198U (en) | Hall effect test application experiment instrument | |
| CN110286271A (en) | A kind of measuring system, method and the analysis method of dielectric surface charge properties | |
| CN213779976U (en) | Ultrasonic nondestructive testing device | |
| CN109341919A (en) | The pressure Distribution Test system and method for fuel cell | |
| KR20010021222A (en) | Probe contact state detecting method and probe contact state detecting apparatus | |
| CN211505631U (en) | Clamp for measuring electrostatic discharge value | |
| US4277977A (en) | Method and apparatus for inspection of ceramic parts for defects | |
| CN210533914U (en) | Portable Leeb hardness tester | |
| KR100448840B1 (en) | Apparatus for Measuring Multi-Channel Impedance for Use in Testing Secondary Battery | |
| CN110398449B (en) | Rock core holder and rock physical parameter testing device | |
| CN205749694U (en) | A kind of antenna measurement fixture | |
| CN205175985U (en) | Novel nondestructive test device | |
| JP3246679B2 (en) | Insulation characteristics measurement device | |
| CN212932791U (en) | Be applied to detection frock that middling pressure inflatable switchgear return circuit resistance was measured | |
| CN220105237U (en) | AC injection type battery internal resistance tester |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |