CN206772734U - A kind of rock Hopkinson dynamic impulsion loading device based on the loading of three axles - Google Patents
A kind of rock Hopkinson dynamic impulsion loading device based on the loading of three axles Download PDFInfo
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- CN206772734U CN206772734U CN201720205631.6U CN201720205631U CN206772734U CN 206772734 U CN206772734 U CN 206772734U CN 201720205631 U CN201720205631 U CN 201720205631U CN 206772734 U CN206772734 U CN 206772734U
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Abstract
The utility model discloses a kind of rock Hopkinson dynamic impulsion loading device based on the loading of three axles, it is characterised in that applies three axle confined pressures of some strength and the shock loading of different LOADING RATESs to rock.Its experimental rig includes test specimen 11, the left and right ends of test specimen 11 are respectively equipped with input lever 6, take-off lever 7, drift 3, transmitting tube 2 and pressurization-gas cascade 1 are provided with input lever, velocity-measuring system 4 is provided between drift and input lever, foil gauge 5 is posted in input lever 6 and take-off lever 7, the Monitoring Data of foil gauge 5 is stored in transient waveform memory 10.Test specimen 11 is located in pressure vessel 8, and three axle confined pressures are adjusted and controlled by hydraulic transmission 9.Pressure vessel 8 is oil pressure container, and the both ends of sample 11 are clamped by end plate 12, and the sealing system of oil pressure container includes dust cap 13, bar sealing 14, container cover 17 and stop nut 16, oil pressure pressure and adjusted by needle valve 15.
Description
Technical field
The present invention is a kind of rock Hopkinson dynamic impulsion loading device based on the loading of three axles, belongs to rock mechanics reality
Test field.
Background technology
Under the historical background that current water power, traffic engineering fast development, and superficial part resource are petered out, deep underground
Utilization, the exploitation of deep mineral resources in space progress into normality.However, rock mass deep mechanical environment has with " routinely adding
The totally different feature of load "：Residing for deep rock mass and non-monotonic loading environment, but experienced free face and form adjoint protolith height
Stress Load-unload, and the multiple exterior power effect of circulation (explosion or mechanical rock drilling vibrations, overlying strata fracture inbreak, rock burst and
Microseism etc.) synchronization, mixing dynamic disturbances process.Up to the present, because people lack rock mechanics indepth engineering experience,
Research and understanding to the deep rock mass mechanical response under above-mentioned Dynamic Loading Condition, it is difficult to effectively prediction and control deep rock
Various diseases, accident or even the disaster that engineering is likely to occur, therefore, develop the corresponding axle dynamic load experimental provision of rock mass three,
The mechanical response research of rock under the conditions of development high confining pressure and dynamic disturbances, the mechanical characteristic of further clear and definite deep rock is ten
Divide necessary.
At present, mechanical characteristic experiment of the rock in the case of three axle confined pressures or dynamic load is ripe, but both are coupled
The method of experiment is also less, and this is that existing experimental method is not accounted for experimental provision.Realize the axle dynamic impulsion of rock three
Loading experiment, is not only able to make up the shortcoming of existing Rock Mechanics Test method, and can be deep rock mass engineering project unstability with
Protective Research provides accurate rock characteristic parameter.
The content of the invention
The present invention develops the corresponding axle dynamic load experimental provision of rock mass three according to rock loading characteristic in deep mining,
The mechanical response research of rock under the conditions of development high confining pressure and dynamic disturbances, there is provided its a kind of result actually more meets with engineering
Three axles loading rock Hopkinson dynamic impulsion loading device.
Technical scheme：A kind of rock Hopkinson dynamic impulsion loading device based on the loading of three axles, it is special
Sign is shock loading of the three axle confined pressures from different LOADING RATESs for applying some strength to rock.Its experimental rig includes test specimen,
The left and right ends of test specimen are respectively equipped with input lever, take-off lever, and drift, transmitting tube and pressurization-gas cascade are provided with input lever, punching
Velocity-measuring system is provided between head and input lever, foil gauge, the Monitoring Data storage of foil gauge are posted in input lever and take-off lever
In transient waveform memory.Test specimen is located in pressure vessel, and three axle confined pressures are adjusted and controlled by hydraulic transmission.
Pressure vessel is oil pressure container, and sample both ends are clamped by end plate, and the sealing system of oil pressure container includes dust cap, bar sealing, held
Device lid and stop nut, oil pressure pressure is by needle-like valve regulation.
The main advantages of the present invention be：Forefathers are overcome to be total to for existing one in the research in terms of rock energetic disturbance
Same problem, i.e., in isolation study protolith high stress under rock mechanical property or only under by dynamic impulsion load rock damage rule
Rule and mechanism, the influence of both synergies is not accounted for.Disturbed in high-strain environments by exterior power for deep rock
The problem of, a kind of rock Hopkinson dynamic impulsion loading device based on the loading of three axles is developed, can be in laboratory conditions
Dynamic impulsion loading of the rock sample under three axle confined pressure situations is realized, it is special with the complicated applied force of more preferable simulation deep rock mass
Property.Combining environmental stress field and dynamic impulsion loading method, the rock under stress field and rate effect coupling condition can be furtherd investigate
The monitoring and analysis of stone dynamic stand under load many reference amounts physical mechanical property index, make experimental result more preferably instruct engineering actual production,
And provide effective laboratory facilities to solve the research of triaxial stress field under the dynamic loads in rock mechanics engineering.
Brief description of the drawings
Fig. 1 is a kind of rock Hopkinson dynamic impulsion loading device schematic diagram based on the loading of three axles of the present invention；
Each symbol represents in figure：
1st, pressurization-gas cascade 2, transmitting tube
3rd, drift 4, velocity-measuring system
5th, foil gauge 6, input lever
7th, take-off lever 8, pressure vessel
9th, hydraulic transmission 10, transient waveform memory
11st, test specimen
Fig. 2 is the three shafting oil pressure vessel schematic diagrames of the present invention；
Each symbol represents in figure：
12nd, end plate 13, dust cap
14th, bar sealing 15, needle valve
16th, stop nut 17, container cover
Embodiment
The present invention is a kind of rock Hopkinson dynamic impulsion loading device based on the loading of three axles, and rock can be applied
Three axle confined pressures of some strength and the shock loading of different LOADING RATESs.
As shown in figure 1, a kind of rock Hopkinson dynamic impulsion loading device based on the loading of three axles of the present invention, including
Test specimen 11, the left and right ends of test specimen 11 are respectively equipped with input lever 6, take-off lever 7, drift 3, transmitting tube 2 and pressure are provided with input lever
Contracting gas container 1, velocity-measuring system 4 is provided between drift and input lever, foil gauge 5 is posted in input lever 6 and take-off lever 7, should
The Monitoring Data for becoming piece 5 is stored in transient waveform memory 10.Test specimen 11 is located in pressure vessel 8, and three axle confined pressures pass through liquid
Pressure transmission device 9 is adjusted and controlled.
As shown in Fig. 2 pressure vessel 8 is oil pressure container, the both ends of sample 11 are clamped by end plate 12, the sealing system of oil pressure container
System includes dust cap 13, bar sealing 14, container cover 17 and stop nut 16, oil pressure pressure and adjusted by needle valve 15.
Concrete operating principle (operating procedure) is：
1st, the rock sample 11 for covering rubber sleeve is loaded into pressure vessel 8 to be sealed, provided using hydraulic transmission 9
Axial oil pressure and end plate 12 test specimen two ends are clamped, then made with lateral pressure system to apply certain confined pressure around test specimen.
2nd, gases at high pressure are inputted to the drift 3 in transmitting tube 2 by pressurization-gas cascade 1, driving drift 3 advances.
3rd, the shock of drift 3 input lever 6 realizes the dynamic load process of test specimen, and part energy is passed into take-off lever 7.
4th, velocity-measuring system 4 monitors temporary impact speed when drift 3 is launched, and transient waveform memory 10 is by being attached to input
The gathered data of foil gauge 5 on bar 6 and take-off lever 7 is post-processed.
Embodiment
1st, sample is prepared：Diameter 70mm, long 35mm.
2nd, the rock sample 11 for covering rubber sleeve is loaded into pressure vessel 8 to be sealed, provided using hydraulic transmission 9
Axial oil pressure and end plate 12 test specimen two ends are clamped, then made with lateral pressure system to apply certain confined pressure, oil pressure around test specimen
It is 100Mpa that cylinder is pressure-resistant.
3rd, data collecting system is mixed up, is waited to be triggered.
4th, gases at high pressure are inputted to the drift 3 in transmitting tube 2 by pressurization-gas cascade 1.
5th, the switch on transmitting tube 2 is opened, drift 3 impacts input lever 6, stress wave activity sample under gases at high pressure promotion
11 and take-off lever 7；Meanwhile velocity-measuring system 4 monitors temporary impact speed when drift 3 is launched, transient waveform memory 10 passes through
The gathered data of foil gauge 5 being attached in input lever 6 and take-off lever 7 is post-processed, and the speed of drift 3 is defeated up to 40-80m/s
Enter a diameter of 30mm of bar and take-off lever, length is respectively 700mm and 500mm.
Claims (3)
1. a kind of rock Hopkinson dynamic impulsion loading device based on the loading of three axles, it is characterised in that apply to rock certain
Three axle confined pressures of intensity and the shock loading of different LOADING RATESs；Its loading device includes test specimen (11), the left and right two of test specimen (11)
End is respectively equipped with input lever (6), take-off lever (7), and drift (3), transmitting tube (2) and pressurization-gas cascade (1) are provided with input lever,
Velocity-measuring system (4) is provided between drift and input lever, foil gauge (5), foil gauge are posted in input lever (6) and take-off lever (7)
(5) Monitoring Data is stored in transient waveform memory (10)；Test specimen (11) is located in pressure vessel (8), and three axle confined pressures are led to
Hydraulic transmission (9) is crossed to be adjusted and control；Pressure vessel (8) is oil pressure container, and test specimen (11) both ends are by end plate (12)
Clamping, the sealing system of oil pressure container include dust cap (13), bar sealing (14), container cover (17) and stop nut (16), oil
Pressure pressure is adjusted by needle valve (15).
2. the rock Hopkinson dynamic impulsion loading device according to claim 1 based on the loading of three axles, its feature exist
Load pressure vessel (8) in test specimen (11) to be sealed, test specimen two ends are provided with end plate (12), and three axle confined pressures are filled by hydraulic drive
(9) offer is provided, and hydraulic pressure is adjusted by needle valve (15).
3. the rock Hopkinson dynamic impulsion loading device according to claim 1 or 2 based on the loading of three axles, its feature
It is temporary impact speed when velocity-measuring system (4) monitors drift (3) transmitting, transient waveform memory (10) is by being attached to input
Foil gauge (5) gathered data on bar (6) and take-off lever (7) is post-processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720205631.6U CN206772734U (en) | 2017-03-06 | 2017-03-06 | A kind of rock Hopkinson dynamic impulsion loading device based on the loading of three axles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720205631.6U CN206772734U (en) | 2017-03-06 | 2017-03-06 | A kind of rock Hopkinson dynamic impulsion loading device based on the loading of three axles |
Publications (1)
| Publication Number | Publication Date |
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| CN206772734U true CN206772734U (en) | 2017-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720205631.6U Expired - Fee Related CN206772734U (en) | 2017-03-06 | 2017-03-06 | A kind of rock Hopkinson dynamic impulsion loading device based on the loading of three axles |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108344649A (en) * | 2018-02-07 | 2018-07-31 | 西北工业大学 | A kind of dynamic double-shaft two-way tensile loading device and experimental method |
| CN108507863A (en) * | 2018-04-09 | 2018-09-07 | 龙岩学院 | A kind of charging assembly and its pressure experimental device |
| CN108519277A (en) * | 2018-04-09 | 2018-09-11 | 龙岩学院 | A kind of impact assembly and its pressure experimental device |
| CN109001053A (en) * | 2018-06-13 | 2018-12-14 | 安徽工业大学 | Coal petrography dynamic impulsion destroys test macro under a kind of confining pressure and damp and hot coupling condition |
| CN109540661A (en) * | 2018-03-08 | 2019-03-29 | 中国矿业大学 | A kind of dynamic stress and gradient stress combination loading experimental apparatus and method |
| CN110926927A (en) * | 2019-12-03 | 2020-03-27 | 四川大学 | Flip formula hopkinson pole confined pressure device |
| CN112857969A (en) * | 2021-01-19 | 2021-05-28 | 中南大学 | Deep high-stress rock mechanical crushing characteristic testing method |
| CN113670552A (en) * | 2021-08-19 | 2021-11-19 | 中国矿业大学 | Non-explosive type blasting impact equivalent loading device and rock mass fracture monitoring method |
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2017
- 2017-03-06 CN CN201720205631.6U patent/CN206772734U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108344649B (en) * | 2018-02-07 | 2020-11-20 | 西北工业大学 | Dynamic biaxial tension loading device and experimental method |
| CN108344649A (en) * | 2018-02-07 | 2018-07-31 | 西北工业大学 | A kind of dynamic double-shaft two-way tensile loading device and experimental method |
| CN109540661A (en) * | 2018-03-08 | 2019-03-29 | 中国矿业大学 | A kind of dynamic stress and gradient stress combination loading experimental apparatus and method |
| CN109540661B (en) * | 2018-03-08 | 2021-04-27 | 中国矿业大学 | Dynamic stress and gradient stress combined loading experimental device and method |
| CN108507863A (en) * | 2018-04-09 | 2018-09-07 | 龙岩学院 | A kind of charging assembly and its pressure experimental device |
| CN108519277A (en) * | 2018-04-09 | 2018-09-11 | 龙岩学院 | A kind of impact assembly and its pressure experimental device |
| CN108519277B (en) * | 2018-04-09 | 2020-09-11 | 龙岩学院 | Impact assembly and pressure test device thereof |
| CN108507863B (en) * | 2018-04-09 | 2020-09-11 | 龙岩学院 | Loading assembly and pressure test device thereof |
| CN109001053A (en) * | 2018-06-13 | 2018-12-14 | 安徽工业大学 | Coal petrography dynamic impulsion destroys test macro under a kind of confining pressure and damp and hot coupling condition |
| CN109001053B (en) * | 2018-06-13 | 2021-01-12 | 安徽工业大学 | Coal rock dynamic impact damage test system under confining pressure and damp-heat coupling condition |
| CN110926927A (en) * | 2019-12-03 | 2020-03-27 | 四川大学 | Flip formula hopkinson pole confined pressure device |
| CN112857969A (en) * | 2021-01-19 | 2021-05-28 | 中南大学 | Deep high-stress rock mechanical crushing characteristic testing method |
| CN113670552A (en) * | 2021-08-19 | 2021-11-19 | 中国矿业大学 | Non-explosive type blasting impact equivalent loading device and rock mass fracture monitoring method |
| CN113670552B (en) * | 2021-08-19 | 2022-04-05 | 中国矿业大学 | Non-explosive type blasting impact equivalent loading device and rock mass fracture monitoring method |
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