CN209182151U - A kind of apparent resistivity measuring device in rock damage and failure test - Google Patents
A kind of apparent resistivity measuring device in rock damage and failure test Download PDFInfo
- Publication number
- CN209182151U CN209182151U CN201822123496.8U CN201822123496U CN209182151U CN 209182151 U CN209182151 U CN 209182151U CN 201822123496 U CN201822123496 U CN 201822123496U CN 209182151 U CN209182151 U CN 209182151U
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- Prior art keywords
- pressure head
- resistivity measuring
- apparent resistivity
- rock
- measuring device
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Abstract
The utility model discloses the apparent resistivity measuring devices in a kind of test of rock damage and failure, it includes measurement bay and monitoring device, measurement bay includes fixed frame and adjustable shelf, fixed frame includes pedestal, pedestal is connect by several guide posts with pressure head top plate, adjustable shelf includes the pressure head bottom plate with guide post socket, and the lower end of pressure head bottom plate is connect with loading device；Loading device includes hydraulic jack, is fixedly connected at the top of the output screw of hydraulic jack with pressure head bottom plate；Hydraulic jack is connect with hand oil pump；Monitoring device includes the ultrasonic probe and copper plate electrode being set on rock sample to be measured, and ultrasonic probe is electrically connected with ultrasonic detector, and copper plate electrode is electrically connected with resistivity measuring instrument.The utility model be able to solve in the prior art can not synchro measure rock apparent resistivity value and the problem of damage and failure degree, structure is simple, production cost is low, highly reliable.
Description
Technical field
The utility model relates to rock the field of test technology, and in particular to the apparent resistance in a kind of test of rock damage and failure
Rate measuring device.
Background technique
Rock mass is the product of earth history, during its formation and development, due to internal force transmission and external force
The influence of matter effect, rock mass have the plane of fracture of a large amount of different orders.The measuring method of damage of rock quantification has CT scan micro-
Crackle, electrical measuring method, laser speckle photography method, supersonic sounding, acoustic-emission, sections observation method etc., more commonly used non-destructive testing
Method has supersonic sounding, electrical measuring method and laser speckle photography method, and supersonic sounding is to carry out compression test or creep to rock
Test evaluates the damage and failure degree of rock by the variation of pre-set probe analysis ultrasonic velocity, at present ultrasound
Wave probe method is widely used in the test of damage of rock.
Rock apparent resistivity is one of the important parameter for characterizing electric conduction of rock, process of the rock in lesion ruptures unstability
In, the Emergence and Development of internal crack and perforation etc. all can cause electric conduction of rock property to change.
The quantitative relationship of research Rock Damage, crack evolution and apparent resistivity has the development of rock mass mechanics very heavy
The meaning wanted.Occur many deep rock mass engineering projects in the industries such as railway, highway, water power, mining, for buried tunnel of growing up
The rock of the complex conditions such as road, deep mining tunnel, seabed tunnel damages in destruction and apparent resistivity research, the measurement rock needed
There is a serious shortage of hinder the quantitative relationship research of rock damage and failure and apparent resistivity with the instrument of stone damage and failure and apparent resistivity.
It further include independent measurement rock apparent resistivity value and damage and failure degree in existing method, but this method is difficult together
Step obtains the real time data of rock damage and failure and apparent resistivity value, and acquired test data often has biggish error.
Utility model content
The utility model is directed to above-mentioned deficiency in the prior art, and providing that one kind is able to solve in the prior art can not be same
Apparent resistivity in the rock damage and failure test of the problem of pacing amount rock apparent resistivity value and damage and failure degree measures dress
It sets.
In order to solve the above technical problems, the utility model uses following technical proposal:
Provide the apparent resistivity measuring device in a kind of test of rock damage and failure comprising measurement bay and monitoring dress
It sets, measurement bay includes fixed frame and adjustable shelf, and fixed frame includes pedestal, and pedestal is connect by several guide posts with pressure head top plate,
Adjustable shelf includes the pressure head bottom plate with guide post socket, and the lower end of pressure head bottom plate is connect with loading device；Loading device includes oil
Jack is pressed, is fixedly connected at the top of the output screw of hydraulic jack with pressure head bottom plate；Hydraulic jack is connect with hand oil pump；
Monitoring device includes the ultrasonic probe and copper plate electrode being set on rock sample to be measured, ultrasonic probe and ultrasound examination
Instrument electrical connection, copper plate electrode are electrically connected with resistivity measuring instrument.
In above-mentioned technical proposal, it is preferred that be provided with limit sleeve on adjustable shelf, limit sleeve includes being fixedly installed on pressure head bottom
Lower platen on plate and the top board for being set to pressure head top plate lower surface.
In above-mentioned technical proposal, it is preferred that be provided with cushion block between top board and pressure head top plate.
In above-mentioned technical proposal, it is preferred that be symmetrically arranged with limited location snap ring on top board and the opposite side of lower platen.
In above-mentioned technical proposal, it is preferred that be located at the position on the outside of limited location snap ring on lower platen and stop screw is set.
In above-mentioned technical proposal, it is preferred that be provided with the external screw thread of stop screw cooperation on limited location snap ring lateral surface.
In above-mentioned technical proposal, it is preferred that packing ring is set on the inside of limited location snap ring.
In above-mentioned technical proposal, it is preferred that be equipped with felt pad on top board and the opposite side of lower platen.
In above-mentioned technical proposal, it is preferred that hydraulic jack is connect with oil pressure gauge.
In above-mentioned technical proposal, it is preferred that ultrasonic detector and resistivity measuring instrument are fixed with terminal respectively
Connection.
The main beneficial effect of apparent resistivity measuring device in above-mentioned rock damage and failure test provided by the utility model
Fruit is:
The utility model is real by applying different loads to rock sample by setting hydraulic jack and hand oil pump
Different degrees of damage and failure degree now is loaded to rock sample；It, can be to rock by setting ultrasonic probe and copper plate electrode
The change procedure of test specimen ultrasonic velocity and apparent resistivity value carries out real-time monitoring.
By the way that limited location snap ring is arranged, rock sample can be effectively fixed；By the way that packing ring is arranged, rock sample is effectively limited
By the movement in hydraulic jack loading procedure；By the way that felt pad is arranged, the apparent resistivity measurement of rock sample can be improved
Precision.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the connection relationship diagram of limit sleeve and rock sample.
Wherein, 1, measurement bay, 11, fixed frame, 111, pedestal, 112, pressure head top plate, 113, guide post, 12, adjustable shelf,
121, pressure head bottom plate, 13, limit sleeve, 131, top board, 132, lower platen, 133, limited location snap ring, 134, stop screw, 135, pad
Block, 2, loading device, 21, hydraulic jack, 22, output screw, 23, hand oil pump, 24, oil pressure gauge, 3, monitoring device, 31,
Ultrasonic detector, 311, ultrasonic probe, 32, resistivity measuring instrument, 321, copper plate electrode, 33, terminal, 4, rock
Test specimen.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing:
As shown in Figure 1, its structural schematic diagram for the apparent resistivity measuring device in rock damage and failure test.
Apparent resistivity measuring device in the rock damage and failure test of the utility model includes measurement bay 1 and monitoring device
3, measurement bay 1 includes fixed frame 11 and adjustable shelf 12, and fixed frame 11 includes pedestal 111, and pedestal 111 passes through several guide posts 113
It is connect with pressure head top plate 112, adjustable shelf 12 includes the pressure head bottom plate 121 being socketed with guide post 113；The lower end of pressure head bottom plate 121
It is connect with loading device 2, loading device 2 includes hydraulic jack 21,22 top of output screw of hydraulic jack 21 and pressure head
Bottom plate 121 is fixedly connected；Hydraulic jack 21 is connect with hand oil pump 23；Hydraulic jack 21 is connect with oil pressure gauge 24.
It optionally, is dismountable connection structure between guide post 113 and pressure head top plate 112.
Limit sleeve 13 is provided on adjustable shelf 11, as shown in Fig. 2, limit sleeve 13 includes being fixedly installed on pressure head bottom plate 121
On lower platen 132 and be set to the top board 131 of 112 lower surface of pressure head top plate, set between top board 131 and pressure head top plate 112
It is equipped with cushion block 135.
Monitoring device 3 includes the ultrasonic probe 311 and copper plate electrode 321 being set on rock sample 4 to be measured, ultrasonic wave
Probe 311 is electrically connected with ultrasonic detector 31, and copper plate electrode 321 is electrically connected with resistivity measuring instrument 32；Ultrasonic detector
31 and resistivity measuring instrument 32 be fixedly connected respectively with terminal 33.It is deposited by the monitoring data of terminal 33
Storage and processing, obtain corresponding data.
Preferably, limited location snap ring 133 is symmetrically arranged on top board 131 and the opposite side of lower platen 132；Lower platen
It is located at the position in 133 outside of limited location snap ring on 132 and has been uniformly arranged several stop screws 134, on 133 lateral surface of limited location snap ring
It is provided with the external screw thread of the cooperation of stop screw 134.By being threadedly engaged between limited location snap ring 133 and stop screw 134, with fixation
Limited location snap ring 133.
Optionally, packing ring is set on the inside of limited location snap ring 133.Since the loading accuracy of hand oil pump 23 is relatively low, oil
It presses jack 21 in uphill process, rock sample 4 may be made to occur cheaply, to pass through setting packing ring and limit under pressure
Position snap ring 133, can effectively fix rock sample 4, guarantee the accuracy of measurement.
Preferably, felt pad is equipped on top board 131 and the opposite side of lower platen 132.Due to 321 meeting of copper plate electrode
It is powered to rock sample 4, by the way that felt pad is arranged, can be avoided top board 131 and lower platen 132 influences resistivity measuring instrument 32
Measurement, so as to improve the apparent resistivity measurement accuracy of rock sample 4.
Optionally, the model YD-2 type Instrument Measuring Resistivity of Carbon Products of resistivity measuring instrument 32；Ultrasonic detector 31 uses
ZBL-U520 nonmetal ultrasonic detector, ultrasonic probe 311 use specification directly to visit for the supersonic detector of 2.5P20
Head.
In actual use, the rock sample 4 that Pass Test prefabricated first requires, size is can be controlled in Left and right.Then check whether the load of hydraulic jack 21 and off-load are normal.
Pressure head top plate 112 is removed, lower platen 132 is placed on pressure head bottom plate 121, rock sample 4 is put into lower platen
It is on 132 and fixed by limited location snap ring 133 and stop screw 134；Top board 131 is put into 4 top of rock sample again and is passed through
Limited location snap ring 133 and stop screw 134 are fixed；Cushion block 135 setting 131 top of top board and by pressure head top plate 112 with lead
It is fixedly connected to column 113, until cushion block 135 and top board 131, pressure head top plate 112 completely attach to.
Ultrasonic probe 311 is symmetrically fixed on 4 two sides of rock sample by adhesive of medical and is led by signal transmission
Line is connect with ultrasonic detector 31；Copper plate electrode 321 is symmetrically fixed on 4 two sides of rock sample by adhesive of medical and is led to
Signal transmission wire is crossed to connect with resistivity measuring instrument 32；Ultrasonic detector 31 and resistivity measuring instrument 32 are passed by signal
Transporting line is fixedly connected with terminal 33.
Start terminal 33, ultrasonic detector 31 and resistivity measuring instrument 32 measure rock sample under original state
4 ultrasonic velocity and apparent resistivity value and by the data real-time delivery of measurement to terminal 33.
It is further applied load by 23 oil feed pressure jack 21 of hand oil pump, the pressure value that the display of oil pressure gauge 24 applies, thus mould
Intend different loading forces, rock sample 4 is made further to wreck, ultrasonic detector 31 and resistivity measuring instrument 32 are surveyed in real time
Variation and the apparent resistivity value of the ultrasonic velocity of rock sample 4 are measured, and by data real-time delivery to terminal 33；Until
Rock sample 1 generates macroscopic cracking, stops this time testing.
Hydraulic jack 14 is resetted, the crushed stone between top board 131 and lower platen 132 is cleared up, prepares test next time,
Until off-test；Test data is finally extracted from terminal 33, and test data is analyzed.
Specific embodiment of the present utility model is described above, in order to facilitate understanding by those skilled in the art
The utility model, it should be apparent that the utility model is not limited to the range of specific embodiment, to the common skill of the art
For art personnel, if various change the attached claims limit and determine the utility model spirit and scope in,
These variations are it will be apparent that all are created using the utility model of the utility model design in the column of protection.
Claims (10)
1. the apparent resistivity measuring device in a kind of rock damage and failure test, which is characterized in that including measurement bay (1) and monitoring
Device (3), the measurement bay (1) include fixed frame (11) and adjustable shelf (12), and the fixed frame (11) includes pedestal (111),
Pedestal (111) is connect by several guide posts (113) with pressure head top plate (112), and the adjustable shelf (12) includes and guide post
(113) the pressure head bottom plate (121) being socketed, the lower end of the pressure head bottom plate (121) is connect with loading device (2)；
The loading device (2) includes hydraulic jack (21), at the top of the output screw (22) of the hydraulic jack (21) with
Pressure head bottom plate (121) is fixedly connected；Hydraulic jack (21) is connect with hand oil pump (23)；
The monitoring device (3) includes ultrasonic probe (311) and the copper plate electrode being set on rock sample to be measured (4)
(321), the ultrasonic probe (311) is electrically connected with ultrasonic detector (31), and the copper plate electrode (321) and resistivity are surveyed
Measure instrument (32) electrical connection.
2. the apparent resistivity measuring device in rock damage and failure test according to claim 1, which is characterized in that described
It is provided on adjustable shelf (12) limit sleeve (13), the limit sleeve (13) includes under being fixedly installed on pressure head bottom plate (121)
Pressing plate (132) and the top board (131) for being set to pressure head top plate (112) lower surface.
3. the apparent resistivity measuring device in rock damage and failure test according to claim 2, which is characterized in that described
Cushion block (135) are provided between top board (131) and pressure head top plate (112).
4. the apparent resistivity measuring device in rock damage and failure test according to claim 2 or 3, which is characterized in that
Limited location snap ring (133) are symmetrically arranged on the top board (131) and the opposite side of lower platen (132).
5. the apparent resistivity measuring device in rock damage and failure test according to claim 4, which is characterized in that described
It is located at the position on the outside of limited location snap ring (133) on lower platen (132) and stop screw (134) is set.
6. the apparent resistivity measuring device in rock damage and failure test according to claim 5, which is characterized in that described
The external screw thread of stop screw (134) cooperation is provided on limited location snap ring (133) lateral surface.
7. the apparent resistivity measuring device in rock damage and failure test according to claim 4, which is characterized in that described
Packing ring is set on the inside of limited location snap ring (133).
8. the apparent resistivity measuring device in rock damage and failure test according to claim 4, which is characterized in that described
Felt pad is equipped on top board (131) and the opposite side of lower platen (132).
9. the apparent resistivity measuring device in rock damage and failure test according to claim 1, which is characterized in that described
Hydraulic jack (21) is connect with oil pressure gauge (24).
10. the apparent resistivity measuring device in rock damage and failure test according to claim 3, which is characterized in that institute
It states ultrasonic detector (31) and resistivity measuring instrument (32) is fixedly connected with terminal (33) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822123496.8U CN209182151U (en) | 2018-12-14 | 2018-12-14 | A kind of apparent resistivity measuring device in rock damage and failure test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822123496.8U CN209182151U (en) | 2018-12-14 | 2018-12-14 | A kind of apparent resistivity measuring device in rock damage and failure test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209182151U true CN209182151U (en) | 2019-07-30 |
Family
ID=67377084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822123496.8U Expired - Fee Related CN209182151U (en) | 2018-12-14 | 2018-12-14 | A kind of apparent resistivity measuring device in rock damage and failure test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209182151U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110487635A (en) * | 2019-09-05 | 2019-11-22 | 安徽理工大学 | The fast testing system and method for core resistivity and velocity of wave under a kind of stress state |
| CN110487634A (en) * | 2019-09-05 | 2019-11-22 | 安徽理工大学 | The System and method for of core strain, resistivity DCO detailed checkout under a kind of stress state |
| CN110554169A (en) * | 2019-10-15 | 2019-12-10 | 西南交通大学 | tunnel excavation process simulation test device and method |
-
2018
- 2018-12-14 CN CN201822123496.8U patent/CN209182151U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110487635A (en) * | 2019-09-05 | 2019-11-22 | 安徽理工大学 | The fast testing system and method for core resistivity and velocity of wave under a kind of stress state |
| CN110487634A (en) * | 2019-09-05 | 2019-11-22 | 安徽理工大学 | The System and method for of core strain, resistivity DCO detailed checkout under a kind of stress state |
| CN110487634B (en) * | 2019-09-05 | 2024-05-31 | 安徽理工大学 | System and method for fine testing of rock core strain and resistivity under loading state |
| CN110487635B (en) * | 2019-09-05 | 2024-05-31 | 安徽理工大学 | Rapid testing system and method for core resistivity and wave velocity under loading state |
| CN110554169A (en) * | 2019-10-15 | 2019-12-10 | 西南交通大学 | tunnel excavation process simulation test device and method |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190730 Termination date: 20211214 |
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| CF01 | Termination of patent right due to non-payment of annual fee |