CN203324108U - Active and passive combined acoustic testing and transfusive testing association system for rock triaxial test - Google Patents
Active and passive combined acoustic testing and transfusive testing association system for rock triaxial test Download PDFInfo
- Publication number
- CN203324108U CN203324108U CN2013202954208U CN201320295420U CN203324108U CN 203324108 U CN203324108 U CN 203324108U CN 2013202954208 U CN2013202954208 U CN 2013202954208U CN 201320295420 U CN201320295420 U CN 201320295420U CN 203324108 U CN203324108 U CN 203324108U
- Authority
- CN
- China
- Prior art keywords
- probe
- rock
- main body
- triaxial test
- rock triaxial
- 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
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The utility model discloses an active and passive combined acoustic testing and transfusive testing association system for a rock triaxial test. The system comprises a rock triaxial tester, a multiwave analyzer, an acoustic emission signal collector and an electronic computer, wherein the rock triaxial tester comprises a sealed pressure chamber, an axle load guide rod and an upper pressure-bearing probe and a lower pressure-bearing probe which are arranged in the sealed pressure chamber and used for clamping a rock specimen. Therefore, a passive acoustic testing system is formed in such a manner that the upper and lower pressure-bearing probes are arranged in the sealed pressure chamber, matched with an acoustic emission sensor, and connected with the acoustic emission signal collector and the electronic computer. Both a second acoustic wave transducer and a first acoustic wave transducer are connected with the multiwave analyzer and the electronic computer to form an active acoustic testing system, so that acoustic wave data and acoustic emission signal data are output through the electronic computer. The system is simple in structure, convenient to use and low in cost, and the accuracy of test results is guaranteed. The system is conveniently applied to the field of indoor rock triaxial tests.
Description
Technical field
The utility model relates to the rock mechanics experiment technical field, is specifically related to a kind of combined type acoustical testing and seepage flow detection combined system that is applicable to the rock triaxial test in the Engineering Testing Technique fields such as rock, geology, physical prospecting.
Background technology
Under load-bearing or Unloading Effect, in the process of rock interior local plastic deformation or new crack initiation, new and old Crack Extension, the instantaneous relase of strain energy and produce elastic wave, these elastic waves are being carried the micro rupture information in rock interior damage evolutionary process, and scholars are called acoustic emission signal by it.Acoustic emission test is that a kind of source signal is uncontrollable, and test macro does not send the passive acoustic detecting mode that acoustical signal receives only acoustical signal.
The acoustic wave of rock test is the important means of study of rocks kinetic property, sonic test is a kind of manual control focus, the wave source signal is converted to amplitude, the controlled elastic wave of frequency range by acoustic wave transducer by electric impulse signal, and test macro had not only received but also the active sounding mode of transmitted signal.
The seepage flow character of rock refers to that rock is under certain hydraulic gradient effect, the ability of penetration by water rock.It has reflected the degree be interconnected between crack in the rock indirectly.Rock osmotic pressure and stress in three axle pressurized process intercouple seepage flow character are changed, and rock three axle seepage tests are one of important means of study of rocks mechanical property and water rationality matter under hydraulic coupling action.
At present, this active acoustical test of sonic test usually utilizes many wave analysis instrument to carry out, and rarely has the triaxial test of introducing system, in rock three axle pressurized process, monitors Acoustic Wave Propagation Characteristics.Acoustic emission monitor(ing) usually utilizes independent Acoustic Emission Testing System to be monitored, complex structure, and cost is higher.In rock three axle field tests, there is no in conjunction with initiatively sonic test, passive acoustic emission monitor(ing) and seepage flow test function are in the triaxial test system of one, seepage characteristic is tested pressure-bearing probe used and is not also had the function of acoustical testing.In addition, existing rock triaxial test owner will be when carrying out the passive acoustic emission monitor(ing) of acoustic emission, in order to prevent that the oil pressure in the testing machine pressure chamber from damaging the sensor piezoelectric ceramics, usually voice sending sensor is arranged on the Up/down base outside the testing machine pressure chamber, but the result of arranging like this is that sensor is distant from the rock sample in pressure chamber, it is larger that acoustic emission signal propagates in the sensor process decay, and the test findings accuracy is difficult to guarantee.
The utility model content
In view of this, the utility model is for the disappearance of prior art existence, its fundamental purpose is to provide a kind of moving combined type acoustical testing of main quilt and seepage flow detection combined system of rock triaxial test, it can not only complete rock mechanics experiment that traditional triaxial test system can complete and permeability test etc., and realized carrying out the moving acoustical testing of mechanics triaxial test, main quilt and the integrated several functions of penetration testing, and solved that traditional rock test system monitors separately that acoustic emission signal brings expensive and technical matters that accuracy is poor simultaneously.
For achieving the above object, the utility model adopts following technical scheme:
The moving combined type acoustical testing of a kind of main quilt of rock triaxial test and seepage flow detection combined system, include rock triaxial test machine, many wave analysis instrument, acoustic emission signal Acquisition Instrument and robot calculator;
This rock triaxial test machine includes sealing load chamber, axial compression guide rod and is arranged at indoor upper pressure-bearing probe and the lower pressure-bearing probe for clamping rock sample of sealing load; It is outdoor that this many wave analysis instrument, acoustic emission signal Acquisition Instrument and robot calculator are positioned at sealing load;
Should include the first main body and be arranged at calibrate AE sensor and the first sound wave transducer in the first main body by upper pressure-bearing probe, this calibrate AE sensor is connected with acoustic emission signal Acquisition Instrument and robot calculator, this first sound wave transducer is connected with many wave analysis instrument and robot calculator, be provided with the first pore water pressure fluid through-hole of aiming at rock sample in this first main body, the internal communication of this first pore water pressure fluid through-hole and sealing load chamber;
This time the pressure-bearing probe includes the second main body and is arranged at the second sound wave transducer in the second main body, this second sound wave transducer is connected with many wave analysis instrument and robot calculator, be provided with the second pore water pressure fluid through-hole of aiming at rock sample in this second main body, the internal communication of this second pore water pressure fluid through-hole and sealing load chamber;
It is indoor and press on pressure-bearing probe that this axial compression guide rod stretches into sealing load.
As a kind of preferred version, described sealing load chamber includes base and body cover, and this body cover is fixed on base, and the outside of the joint of this body cover and base is arranged with O-ring seal.
As a kind of preferred version, described the first main body includes probe main part and probe cover, the upper surface of this probe main part is concaved with cavity, this probe cover sealing covers the opening of this cavity, aforementioned calibrate AE sensor is placed in this cavity, and aforementioned first sound wave transducer and the first pore water pressure fluid through-hole all are arranged in the probe main part.
As a kind of preferred version, described probe cover is fixedly connected with the probe main part by fastening bolt, between this probe cover and probe main part, is folded with the ring-shaped rubber O-ring seal.
As a kind of preferred version, described probe cover convexes with ，Gai location division, location division downwards and stretches out in cavity, and the bottom surface periphery of this probe cover is butted on the top end face of probe main part.
As a kind of preferred version, described probe main part and probe cover are the stainless steel material that strength and stiffness are large.
As a kind of preferred version, the top of described probe cover is concaved with the centering guide groove, and the lower end of this axial compression guide rod is embedded in this centering guide groove.
As a kind of preferred version, described the second main body is the stainless steel material that strength and stiffness are large.
As a kind of preferred version, the upper surface of the lower surface of described the first main body and the second main body is provided with central through hole, hoop groove and radial groove, this central through hole is communicated with aforementioned corresponding pore water pressure fluid through-hole, and this radial groove is communicated between central through hole and hoop groove.
As a kind of preferred version, the upper surface of the lower surface of described the first main body and the second main body correspondence respectively is coated with the first porous disc and the second porous disc.
The utility model compared with prior art has obvious advantage and beneficial effect, particularly, and as shown from the above technical solution:
One, by in indoor upper pressure-bearing probe and the lower pressure-bearing probe of being provided with of sealing load, coordinate calibrate AE sensor to be connected with acoustic emission signal Acquisition Instrument and robot calculator and form passive acoustical testing system, this second sound wave transducer and first sound wave transducer all are connected with many wave analysis instrument and robot calculator and form the active acoustical test macro, so that sonic data and acoustic emission signal data all can be exported by robot calculator, simple in structure, easy to use, cost is low, and guaranteed the accuracy of test findings, be convenient to be generalized to indoor rock triaxial test field tests.
Two, the upper surface by the lower surface in the first main body and the second main body is provided with central through hole, can enter rock sample by central through hole so that there is the fluid of certain pressure, reach and control rock sample internal void pressure and carry out the purpose of seepage flow test, and be equipped with hoop groove, radial groove and each porous disc so that the suffered pore pressure of rock sample end face distributes more even.
For more clearly setting forth architectural feature of the present utility model and effect, below in conjunction with accompanying drawing and specific embodiment, the utility model is elaborated:
The accompanying drawing explanation
Fig. 1 is the structural representation of the preferred embodiment of the utility model;
Fig. 2 is the one-piece construction sectional view of rock triaxial test machine in the preferred embodiment of the utility model;
Fig. 3 is upper pressure-bearing sonde configuration sectional view in the preferred embodiment of the utility model;
Fig. 4 is lower pressure-bearing sonde configuration sectional view in the preferred embodiment of the utility model;
Fig. 5 is that in the preferred embodiment of the utility model, upper and lower pressure-bearing probe contacts the end face structural drawing with rock sample.
The accompanying drawing identifier declaration:
10, rock triaxial test machine 11, sealing load chamber
111, base 112, body cover
113, O-ring seal 12, axial compression guide rod
13, upper pressure-bearing probe the 131, first main body
132, calibrate AE sensor 133, first sound wave transducer
134, signal data line 135, the first pore water pressure fluid through-hole
136, the first porous disc 14, lower pressure-bearing probe
141, the second main body 142, second sound wave transducer
143, the second pore water pressure fluid through-hole 144, the second porous disc
101, probe main part 102, probe cover
103, cavity 104, fastening bolt
105, ring-shaped rubber O-ring seal 106, location division
107, centering guide groove 108, central through hole
109, hoop groove 110, radial groove
20, many wave analysis instrument 30, acoustic emission signal Acquisition Instrument
40, robot calculator 50, rock sample
Embodiment
Please refer to shown in Fig. 1 to Fig. 5, the concrete structure that it has demonstrated the preferred embodiment of the utility model, include rock triaxial test machine 10, many wave analysis instrument 20, acoustic emission signal Acquisition Instrument 30 and robot calculator 40.
Wherein, this rock triaxial test machine 10 includes sealing load chamber 11, axial compression guide rod 12 and is arranged at upper pressure-bearing probe 13 and the lower pressure-bearing probe 14 for clamping rock sample 50 in sealing load chamber 11; This many wave analysis instrument 20, acoustic emission signal Acquisition Instrument 30 and robot calculator 40 are positioned at outside sealing load chamber 11.
Specifically say, in the present embodiment, sealing pressure chamber 11 includes base 111 and body cover 112, and this body cover 112 is fixed on base 111, this body cover 112 is arranged with O-ring seal 113 with the outside of the joint of base 111, so that the sealing effectiveness of sealing load chamber 11 is better.
This axial compression guide rod 12 stretches in sealing load chamber 11 and presses on pressure-bearing probe 13.
As shown in Figure 3, on this, pressure-bearing is popped one's head in 13 in T shapely, and on this, pressure-bearing probe 13 includes the first main body 131 and is arranged at calibrate AE sensor 132 and the first sound wave transducer 133 in the first main body 131; This calibrate AE sensor 132 and first sound wave transducer 133 are piezoelectric ceramics and make, this calibrate AE sensor 132 can receive the Elastic wave signal that after rock sample 50 load-bearings, underbead crack germinates, expansion discharges, this calibrate AE sensor 132 is connected with acoustic emission signal Acquisition Instrument 30 and robot calculator 40 and forms passive acoustical testing system by signal data line 134, be provided with the first pore water pressure fluid through-hole 135 of aiming at rock sample 50 in this first main body 131, the internal communication of this first pore water pressure fluid through-hole 135 and sealing load chamber 11; In the present embodiment, this first main body 131 includes probe main part 101 and probe cover 102, the upper surface of this probe main part 101 is concaved with cavity 103, these probe cover 102 sealings cover the opening of this cavity 103, aforementioned calibrate AE sensor 132 is placed in this cavity 103, and aforementioned first sound wave transducer 133 and the first pore water pressure fluid through-hole 135 all are arranged in probe main part 101; And this probe cover 102 is fixedly connected with probe main part 101 by fastening bolt 104, be folded with ring-shaped rubber O-ring seal 105 between this probe cover 102 and probe main part 101, so that form better sealing between cavity 103 and the external world; And, this probe cover 102 convexes with location division 106 downwards, the interior realization of cavity 103 location is stretched out in this location division 106, so that probe cover 102 is fixed on probe main part 101 better, the bottom surface periphery of this probe cover 102 is butted on the top end face of probe main part 101, the top of this probe cover 102 is concaved with centering guide groove 107, and the lower end of this axial compression guide rod 12 is embedded in this centering guide groove 107; In addition, this probe main part 101 and probe cover 102 are the stainless steel material that strength and stiffness are large, so that upper pressure-bearing probe 13 can bear larger load and can not damage.
As shown in Figure 4, this time pressure-bearing probe 14 is inverted T-shape, and this time pressure-bearing probe 14 includes the second main body 141 and is arranged at the second sound wave transducer 142 in the second main body 141; This second sound wave transducer 142 is made by piezoelectric ceramics, this second sound wave transducer 142 can receive by upper pressure-bearing probe 13 and excite and through the acoustic signals of rock sample 50, this second sound wave transducer 142 and aforesaid first sound wave transducer 133 all are connected with many wave analysis instrument 20 and robot calculator 40 and form the active acoustical test macro, be provided with the second pore water pressure fluid through-hole 143 of aiming at rock sample 50 in this second main body 141, the internal communication of this second pore water pressure fluid through-hole 143 and sealing load chamber 11; And this second main body 141 is the stainless steel material that strength and stiffness are large, so that lower pressure-bearing probe 14 can bear larger load and can not damage.
In addition, the upper surface of the lower surface of this first main body 131 and the second main body 141 is provided with central through hole 108, hoop groove 109 and radial groove 110, this central through hole 108 is communicated with aforementioned corresponding pore water pressure fluid through-hole, and this radial groove 110 is communicated between central through hole 108 and hoop groove 109; And the upper surface of the lower surface of the first main body 131 and the second main body 141 correspondence respectively is coated with the first porous disc 136 and the second porous disc 144, so that the suffered pore pressure of rock sample 50 end face is evenly distributed.
The course of work that the present embodiment is described in detail in detail is as follows:
Pressure-bearing probe in step 1, assembling
Vaseline is smeared on surface at calibrate AE sensor 132, then calibrate AE sensor 132 is put into to cavity 103 gently, makes its coupling good and be fixed in the inwall of cavity 103 with glue; Then, the top end face by 105 placements of ring-shaped rubber O-ring seal with probe main part 101, align the lower probe cover 102 of lid and use fastening bolt 104 that probe cover 102 is fixedly connected with the main part 101 of popping one's head in, and makes calibrate AE sensor 132 be sealed in cavity 103.
Step 2, rock sample assembling
The rock sample 50 that preparation is completed is smooth to be placed on the top end face of lower pressure-bearing probe 14, and for the black adhesive plaster is wound around rock sample 50 by the surface of contact sealing, to prevent the too high surface of contact of confined pressure place heat-shrink tube pressure break.Fortune uses the same method and is wound around the black adhesive plasters in rock sample 50 core upper ends and prevents pressure-bearing 13 hypertonia of popping one's head in, after the adhesive plaster sealing, with the teflon heat-shrink tube, rock sample 50 is entangled firm, and tighten up with blowing hot wind, make osmotic pressure and the isolation of the oil pressure in sealing load chamber 11 in rock sample 50.Installation shaft is to strainometer and radial strain meter, connects the data line of each strainometer and transducer and pore water pressure conduit on the hole slot of base 111.
Step 3, triaxial test
Install ready after, put down body cover 112 and with O-ring seal 113 sealings.The step of then pressing triaxial test, to 11 oilings of sealing load chamber, applies axial compression, pore pressure, confined pressure to testing setting value, and the simultaneous shots sound wave, collects acoustic emission signal and acoustic signals, records in the fluid unit interval by the flow of rock sample end face.
Design focal point of the present utility model is: at first, by in indoor upper pressure-bearing probe and the lower pressure-bearing probe of being provided with of sealing load, coordinate calibrate AE sensor to be connected with acoustic emission signal Acquisition Instrument and robot calculator and form passive acoustical testing system, this second sound wave transducer and first sound wave transducer all are connected with many wave analysis instrument and robot calculator and form the active acoustical test macro, so that sonic data and acoustic emission signal data all can be exported by robot calculator, simple in structure, easy to use, cost is low, and guaranteed the accuracy of test findings, be convenient to be generalized to indoor rock triaxial test field tests.Secondly, upper surface by the lower surface in the first main body and the second main body is provided with central through hole, can enter rock sample by central through hole so that there is the fluid of certain pressure, reach and control rock sample internal void pressure and carry out the purpose of seepage flow test, and be equipped with hoop groove, radial groove and each porous disc so that the suffered pore pressure of rock sample end face distributes more even.
The above, it is only preferred embodiment of the present utility model, not technical scope of the present utility model is imposed any restrictions, therefore any trickle modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all still belong in the scope of technical solutions of the utility model.
Claims (10)
1. the moving combined type acoustical testing of the main quilt of a rock triaxial test and seepage flow detection combined system, is characterized in that: include rock triaxial test machine, many wave analysis instrument, acoustic emission signal Acquisition Instrument and robot calculator;
This rock triaxial test machine includes sealing load chamber, axial compression guide rod and is arranged at indoor upper pressure-bearing probe and the lower pressure-bearing probe for clamping rock sample of sealing load; It is outdoor that this many wave analysis instrument, acoustic emission signal Acquisition Instrument and robot calculator are positioned at sealing load;
Should include the first main body and be arranged at calibrate AE sensor and the first sound wave transducer in the first main body by upper pressure-bearing probe, this calibrate AE sensor is connected with acoustic emission signal Acquisition Instrument and robot calculator, this first sound wave transducer is connected with many wave analysis instrument and robot calculator, be provided with the first pore water pressure fluid through-hole of aiming at rock sample in this first main body, the internal communication of this first pore water pressure fluid through-hole and sealing load chamber;
This time the pressure-bearing probe includes the second main body and is arranged at the second sound wave transducer in the second main body, this second sound wave transducer is connected with many wave analysis instrument and robot calculator, be provided with the second pore water pressure fluid through-hole of aiming at rock sample in this second main body, the internal communication of this second pore water pressure fluid through-hole and sealing load chamber;
It is indoor and press on pressure-bearing probe that this axial compression guide rod stretches into sealing load.
2. the main quilt of rock triaxial test according to claim 1 is moved combined type acoustical testing and seepage flow detection combined system, it is characterized in that: described sealing load chamber includes base and body cover, this body cover is fixed on base, and the outside of the joint of this body cover and base is arranged with O-ring seal.
3. the main quilt of rock triaxial test according to claim 1 is moved combined type acoustical testing and seepage flow detection combined system, it is characterized in that: described the first main body includes probe main part and probe cover, the upper surface of this probe main part is concaved with cavity, this probe cover sealing covers the opening of this cavity, aforementioned calibrate AE sensor is placed in this cavity, and aforementioned first sound wave transducer and the first pore water pressure fluid through-hole all are arranged in the probe main part.
4. the main quilt of rock triaxial test according to claim 3 is moved combined type acoustical testing and seepage flow detection combined system, it is characterized in that: described probe cover is fixedly connected with the probe main part by fastening bolt, between this probe cover and probe main part, is folded with the ring-shaped rubber O-ring seal.
5. the main quilt of rock triaxial test according to claim 3 is moved combined type acoustical testing and seepage flow detection combined system, it is characterized in that: described probe cover convexes with location division downwards, stretch out in cavity this location division, and the bottom surface periphery of this probe cover is butted on the top end face of probe main part.
6. the main quilt of rock triaxial test according to claim 3 is moved combined type acoustical testing and seepage flow detection combined system, and it is characterized in that: described probe main part and probe cover are the stainless steel material that strength and stiffness are large.
7. the main quilt of rock triaxial test according to claim 3 is moved combined type acoustical testing and seepage flow detection combined system, and it is characterized in that: the top of described probe cover is concaved with the centering guide groove, and the lower end of this axial compression guide rod is embedded in this centering guide groove.
8. the main quilt of rock triaxial test according to claim 1 is moved combined type acoustical testing and seepage flow detection combined system, and it is characterized in that: described the second main body is the stainless steel material that strength and stiffness are large.
9. the main quilt of rock triaxial test according to claim 1 is moved combined type acoustical testing and seepage flow detection combined system, it is characterized in that: the upper surface of the lower surface of described the first main body and the second main body is provided with central through hole, hoop groove and radial groove, this central through hole is communicated with aforementioned corresponding pore water pressure fluid through-hole, and this radial groove is communicated between central through hole and hoop groove.
10. according to the moving combined type acoustical testing of the main quilt of claim 1 or 9 described rock triaxial test and seepage flow detection combined system, it is characterized in that: the upper surface of the lower surface of described the first main body and the second main body correspondence respectively is coated with the first porous disc and the second porous disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202954208U CN203324108U (en) | 2013-05-27 | 2013-05-27 | Active and passive combined acoustic testing and transfusive testing association system for rock triaxial test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202954208U CN203324108U (en) | 2013-05-27 | 2013-05-27 | Active and passive combined acoustic testing and transfusive testing association system for rock triaxial test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203324108U true CN203324108U (en) | 2013-12-04 |
Family
ID=49663447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202954208U Expired - Fee Related CN203324108U (en) | 2013-05-27 | 2013-05-27 | Active and passive combined acoustic testing and transfusive testing association system for rock triaxial test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203324108U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308388A (en) * | 2013-05-27 | 2013-09-18 | 华侨大学 | Active or passive combined acoustic testing and seepage testing combined system for rock triaxial test |
| CN105510447A (en) * | 2015-12-03 | 2016-04-20 | 中国石油天然气股份有限公司 | acoustic emission sensor mounting device for hydraulic fracturing simulation experiment |
| CN105973712A (en) * | 2015-12-21 | 2016-09-28 | 河南理工大学 | Acoustic emission testing device used in gassy coal rock fracturing process |
| CN107884278A (en) * | 2017-09-29 | 2018-04-06 | 中国科学院武汉岩土力学研究所 | Rock true triaxial test method with ultrasonic phased array Real Time Image System |
| 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 |
-
2013
- 2013-05-27 CN CN2013202954208U patent/CN203324108U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308388A (en) * | 2013-05-27 | 2013-09-18 | 华侨大学 | Active or passive combined acoustic testing and seepage testing combined system for rock triaxial test |
| CN105510447A (en) * | 2015-12-03 | 2016-04-20 | 中国石油天然气股份有限公司 | acoustic emission sensor mounting device for hydraulic fracturing simulation experiment |
| CN105973712A (en) * | 2015-12-21 | 2016-09-28 | 河南理工大学 | Acoustic emission testing device used in gassy coal rock fracturing process |
| CN107884278A (en) * | 2017-09-29 | 2018-04-06 | 中国科学院武汉岩土力学研究所 | Rock true triaxial test method with ultrasonic phased array Real Time Image System |
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103308388A (en) | Active or passive combined acoustic testing and seepage testing combined system for rock triaxial test | |
| CN203324108U (en) | Active and passive combined acoustic testing and transfusive testing association system for rock triaxial test | |
| CN201110844Y (en) | Rock core vertical and horizontal wave velocity measuring probe | |
| CN111220452B (en) | True triaxial pressure chamber for coal rock simulation test and test method thereof | |
| CN108827825B (en) | System and method for detecting compactness of grouting material in steel bar sleeve | |
| CN104865124A (en) | Shale brittleness index determination method based on rock stress-strain curve and ultrasonic longitudinal wave velocity | |
| CN103994716A (en) | Distributed rock deformation measuring method | |
| CN208537357U (en) | A kind of coal body permeability test device | |
| CN110608953A (en) | Triaxial test soil unit central position pore water pressure test system | |
| CN205782032U (en) | A kind of pressure pipeline leakage signal detection experimental system | |
| CN110987611B (en) | Method for nondestructively measuring active and passive restraint force of FRP (fiber reinforced Plastic) restraint concrete column based on ultrasonic waves | |
| CN112557499A (en) | Experimental method for influence of joints on stress wave transmission and reflection rules based on ultrasonic waves | |
| CN211148301U (en) | Triaxial test soil unit central position pore water pressure test system | |
| CN110530772B (en) | Integrative test device of coal sample high pressure meeting an emergency and carbon dioxide displacement coal bed methane | |
| CN200986538Y (en) | Novel dry hole acoustic wave test probe | |
| CN206002199U (en) | Acoustic signal sensor probe fixing device | |
| CN208091973U (en) | A kind of sensor array of supersonic guide-wave torsion mode suitable for pipe detection | |
| CN106870347B (en) | A kind of device of monitoring reciprocating pump hydraulic-end moving component and fluid leakage sound | |
| CN110907076B (en) | Method for detecting uniform hoop restraining force of circular steel tube concrete column in real time by ultrasonic waves | |
| CN210401325U (en) | Solid longitudinal wave and shear transverse wave measurement and analysis system in different directions | |
| CN111089785A (en) | Shear seepage coupling test device for columnar rock | |
| CN104280460B (en) | Ultrasonic water logging detection method of composite material | |
| CN207717700U (en) | It is a kind of to simulate Acoustic Emission of Rock measurement experimental rig under different hydraulic pressure | |
| CN108152127B (en) | Working stress monitoring device and method for concrete structure | |
| CN208953420U (en) | A kind of permeability of coal sample shock wave test device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20150527 |
|
| EXPY | Termination of patent right or utility model |