CN202330236U - Rock mechanical test device under gas seepage-creep combined action - Google Patents
Rock mechanical test device under gas seepage-creep combined action Download PDFInfo
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- CN202330236U CN202330236U CN2011205045142U CN201120504514U CN202330236U CN 202330236 U CN202330236 U CN 202330236U CN 2011205045142 U CN2011205045142 U CN 2011205045142U CN 201120504514 U CN201120504514 U CN 201120504514U CN 202330236 U CN202330236 U CN 202330236U
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Abstract
The utility model provides a rock mechanical test device under the gas seepage-creep combined action. The device comprises an upper seat, a lower seat, a motor oil pump, a high-pressure nitrogen gas cylinder and an oil pump, wherein the upper seat is connected with the lower seat; the upper seat and the lower seat are connected with a gas cavity with honeycomb gas holes respectively; the gas cavity with honeycomb gas holes connected with the upper seat is connected with an outlet pipe; the gas cavity with honeycomb gas holes connected with the lower seat is connected with a gas inlet pipe; the lower seat and the gas cavity with honeycomb gas holes connected with the lower seat are connected with a support plate; the support plate is connected with a loading oil cylinder through a pressurizing piston rod; the motor oil pump is connected with the loading oil cylinder; the high-pressure nitrogen gas cylinder is connected with the gas inlet pipe; and the oil pump is connected with an oil cylinder and then communicated with a triaxial cavity. The device provided by the utility model can perform a gas seepage-creep coupling test of rock under different stress levels and different gas seepage pressures, can smoothly finish the creep test of a rock sample in constant-stress condition and can provide real and reliable data.
Description
Technical field
The utility model relates to a kind of test unit, particularly a kind of acting in conjunction stone mechanical testing equipment of gas seepage flow-creep.
Background technology
Rock permeability and creep properties are extremely important to rock engineering, engineering hydrogeology, engineering geophysics.Creep is one of important mechanical characteristic of rock, and along with China's rapid economy development, large-scale rock engineering becomes more diverse with complicated, need carry out more deep research to the creep properties of rock under the various complex conditions.At present; Engineerings such as the underground energy storage of oil (rock gas) in China's enforcement and the planning, low-permeability oil gas field development, gassy mine gas drainage, the buried disposal of radioactive waste geology; All relate in the geologic structure of complicacy and build underground works; These engineerings all relate to the problem of gas seepage flow in the rock mass medium, are importances for the infiltrative test of rock gas and to the assessment of environmental impact.
Seepage flow, the creep properties of studying rock under many couplings have great importance.This needs the testing equipment of ability simulation rock seepage flow-creep coupling in a large number; The assurance of fundamental research aspect is provided for the enforcement of Chinese large-sized energy project; The equipment of research creep of rock is more at present; Like the three-dimensional shear rheology appearance of the RYL-60 type of Chaoyang, Changchun test apparatus company limited, American MTS testing machine etc., existing creep of rock equipment scarcely possesses rock gas seepage flow arranged-function of creep coupling.Consider that the test unit of seepage effect is especially little in the creep of rock research; The test unit of relevant seepage flow-creep coupling also only relates to the influence of considering water seepage flow in the creep of rock; Like Yan Yan; The test unit of the rock seepage flow that Wang Enzhi sets up-creep coupling, it is water that the fluid of this device adopts, test unit comes down to the test unit of water seepage flow-creep coupling; A kind of multifunctional rock triaxial rheometer that also has Kang Wenfa to set up, the three draining creep tests of sandstone using this instrument to do to last 12 h and the triaxial compression test of dry rock sample.Relevant gas seepage flow test device is primarily aimed at the influence to gas seepage flow of the infiltration rule, stress level of rock, the gas seepage flow under the creep condition of minimum consideration rock.
Because the compressibility and the stronger suction-operated of gas of gas; Cause the percolation law of gas in rock to be different from the percolation law of incompressible or little compressible liquid (like water), the test unit of rock water seepage flow-creep coupling is inappropriate for research rock gas seepage flow-creep coupling effect.And existing gas seepage flow test device is because creep effect can't consider rock sample long the time, and the infiltration coefficient of the rock that obtains can't be reflected in the variation of rock permeability coefficient in the country rock stone creep process.
Summary of the invention
The purpose of the utility model is to provide a kind of acting in conjunction stone mechanical testing equipment of gas seepage flow-creep; Can realize axial, radial deformation in the creep of rock process; Axial compression, confined pressure; Parameter such as air pressure, gas flow in real time in time, output exactly, for distortion, the failure mechanism of rock under learning gas seepage flow-creep coupling provides reliable experimental basis.
To achieve these goals, the technical scheme that the utility model adopts is: a kind of acting in conjunction stone mechanical testing equipment of gas seepage flow-creep comprises the seat of honour, following, motor pump, high pressure nitrogen gas cylinder and oil pump; The seat of honour is connected with following; The seat of honour and following air cavity that respectively is connected with a band peripheric blister; The air cavity of the band peripheric blister that is connected with the seat of honour is connected with outlet; Be connected with draft tube with the air cavity of following band peripheric blister that is connected, the air cavity of following seat and coupled band peripheric blister is connected with supporting plate, and supporting plate passes through the pressurizing piston bar and is connected with load cylinder; Motor pump is connected with load cylinder, and the high pressure nitrogen gas cylinder is connected with draft tube, and oil pump is communicated with three axocoels with after oil cylinder is connected.
The acting in conjunction stone mechanical testing equipment of above-mentioned gas seepage flow-creep, the pipeline that oil cylinder is communicated with three axocoels is provided with bladder type hydropneumatic accumulator I and tensimeter I.
The acting in conjunction stone mechanical testing equipment of above-mentioned gas seepage flow-creep, the pipeline that motor pump is connected with load cylinder is provided with bladder type hydropneumatic accumulator II and pressure Table II.
The acting in conjunction stone mechanical testing equipment of above-mentioned gas seepage flow-creep, described outlet is provided with gas flow meter.
The acting in conjunction stone mechanical testing equipment of above-mentioned gas seepage flow-creep, the pipeline that said high pressure nitrogen gas cylinder is connected with draft tube is provided with rain glass.
Compared with prior art; The utility model beneficial effect of the invention is: the utility model can carry out the gas seepage flow-creep coupling test of rock under different stress levels, the gas with various seepage pressure, and obtains the gas seepage flow and the deformation of creep rule of different rock samples constantly.The utility model possesses bladder type hydropneumatic accumulator; When equipment because external interference, and when causing pressure instability, bladder type hydropneumatic accumulator can be to the timely supplementary pressure of system; Better pressure stabilization function is arranged, can so that the creep test of rock sample under the constant stress condition accomplish smoothly, exactly; Have the air cavity of band peripheric blister, can make gas put on the rock sample surface equably.Gas is nitrogen in the utility model invention gas cylinder, and chemical property is inactive at normal temperatures, has guaranteed safety in the experimentation, reliable; The utility model has adopted displacement meter and axial sensor, and their result of test is examined mutually, can obtain reliable axial deformation.
Description of drawings
Fig. 1 is the structural representation of the utility model invention.
Fig. 2 is the air cavity structural representation of the band peripheric blister of the utility model.
Among the figure: 1, reaction frame, 2, oil pump, 3, the rocks rock sample, 4, bladder type hydropneumatic accumulator I, 5, tensimeter I, 6, operating valve I; 7, high pressure nitrogen gas cylinder, 8, row's oral pore, 9, the seat of honour, 10, following, 11, pressure head, 12, be with the air cavity of peripheric blister; 13, supporting plate, 14, ball angle pressure head, 15, rain glass, 16 operating valve II, 17, bladder type hydropneumatic accumulator II, 18, the pressure Table II; 19, pressurizing piston bar, 20, rock sample, 21, axial sensor, 22, radial transducer, 23, outlet; 24, gas flow meter, 25, gas collection dress, 26, draft tube, 27, reduction valve, 28, electric oil pump; 29, oil cylinder, 30, displacement meter, 31, peripheric blister, 32, air cavity, 33, three axocoels.
Embodiment
As shown in Figure 1, the utility model provides a kind of gas seepage flow-creep coupling test device of rock, and it comprises the seat of honour 9, following 10, motor pump 28, high pressure nitrogen gas cylinder 7 and oil pump 3; The seat of honour 9 is connected with following 10; The seat of honour 9 and following 10 air cavity 12 that respectively is connected with a band peripheric blister; The air cavity 12 of the band peripheric blister that is connected with the seat of honour 9 is connected with outlet 23, is connected with draft tube 26 with the air cavity 12 of following 10 band peripheric blister that is connected, and the air cavity 12 of following seat 10 and coupled band peripheric blister is connected with supporting plate 13; Supporting plate 13 is connected with load cylinder 2 through pressurizing piston bar 19, and load cylinder 2 is installed on the reaction frame 1.The pipeline that motor pump 28 is connected with load cylinder 2 is provided with operating valve II 16, pressure Table II 18 and bladder type hydropneumatic accumulator II 17; The pipeline that the high pressure nitrogen gas cylinder is connected with draft tube 26 is provided with rain glass 15; Oil pump 3 is communicated with three axocoels 33 with after operating valve I 6, oil cylinder 29 are connected successively again, and oil cylinder 29 is provided with tensimeter I 5 with the pipeline that three axocoels 33 are communicated with, and is connected with gas flow meter 24 on the outlet 23.The air cavity 12 of the lower end of pressure head 11 and the band peripheric blister that is connected with the seat of honour 9 connects, and the upper end is connected with ball angle pressure head 14, and ball angle pressure head 14 is packed on the reaction frame 1.
During work; Electric oil pump 28, load cylinder 2 impose on pressurizing piston bar 19 with oil pressure, and through the 18 control axial compression sizes of the pressure Table II on the pipeline, bladder type hydropneumatic accumulator II 17 stablizes confined pressure; Through rock sample 20 axle power is passed to pressure head 11, ball angle pressure head 14, finally act on the reaction frame 1; Oil pump 3, operating valve I 6, oil cylinder 29 impose on oil pressure in three axocoels 33, and gas is discharged by row's oral pore 8 in three axocoels 33, and through tensimeter 5 control confined pressure sizes, bladder type hydropneumatic accumulator 4 is stablized confined pressure; Nitrogen gas in the high pressure nitrogen gas cylinder 7 penetrates rock sample 20 through peripheric blister 31, and peripheric blister 31 writes down gas flows by escape pipe 23 discharge gases by gas flow meter 24 to gas through top, collects nitrogen through gas extractor 25; Axial deformation obtains through supporting plate on the pressurizing piston bar 13 and displacement meter 30 contact contact measurements; Axial, the radial deformation test macro of rock sample measure with axial sensor 21 and radial transducer 22, give computer system through sensor connector lug and data line with the deformation data real-time Transmission; Through the result of the test of displacement meter 30 and axial sensor 21 relatively, two data are examined mutually, obtain reliable axial deformation.
The operating process of the utility model is following:
(1) rock sample is installed.Entangle with the rock sample of heat-shrink tube Ф 50 * 100mm; With hair dryer heat-shrink tube is heated; Guarantee that heat-shrink tube closely contacts with the rock sample periphery, tightly wale the rock sample heat-shrink tube at two ends up and down, radial displacement transducer is installed on rock sample central authorities with aglet; Shaft position sensor is installed on the bottom of rock sample, and the connector lug and the data line of radial and axial displacement transducer connected.
(2) installation.With on following 10 supporting plate 13 that places load cylinder; The air cavity 12 of band peripheric blister is placed down in the duct of seat 10, rock sample is loaded on the air cavity 12 of band peripheric blister, 4 " O " RunddichtringOs are enclosed within the reservation groove at the seat of honour 9; The seat of honour 9 is put into down in the seat; And will connect upper and lower seat through bolt and connect, with the air cavity 12 of the band peripheric blister on top, pressure head 11, ball angle pressure head 14 install.The air cavity 12 of induction pipe 26 with bottom band peripheric blister connected with high pressure nitrogen gas cylinder 7, escape pipe 23 connects with gas flow meter 24, gas extractor 25 again; At last supporting plate 13 is contacted with displacement meter 30 contacts.
(3) apply axial compression through 28 pairs of rock-like of electric oil pump, when axial compression reaches trial value, stop to load, valve-off, and through stable-pressure device 17 voltage stabilizings; Apply confined pressure through 3 pairs of rock-like of oil pump, when confined pressure reaches trial value, stop to load, valve-off, and through stable-pressure device 4 steady confined pressures; Open high pressure nitrogen gas cylinder 7, and regulate reduction valve 27, the atmospheric pressure value that makes rain glass 15 is at least than more than the little 1MPa of confined pressure value, through these means guarantee that rock side is split and heat-shrink tube between impermeable.
(4) location parameter.Measure axial, the radial deformation of rock sample, axial compression, confined pressure, air pressure, gas flow and each parameter and time relation.
Use the utility model, can carry out the research of the gas seepage flow-creep coupling of rock, the good voltage stabilizing through bladder type hydropneumatic accumulator realization system makes the creep test of rock sample under the constant stress condition be achieved.Owing to adopt air pressure more technological than the pressurization more than the little 1MPa of confined pressure, guaranteed that side is split and heat-shrink tube between do not have gas permeation, the gas seepage tests of rock sample are achieved.Axial, the radial deformation data of rock sample are passed through the sensor in real time collection, and data are true and reliable.
Claims (5)
1. the acting in conjunction stone mechanical testing equipment of a gas seepage flow-creep is characterized in that: it comprises the seat of honour, following, motor pump, high pressure nitrogen gas cylinder and oil pump; The seat of honour is connected with following; The seat of honour and following air cavity that respectively is connected with a band peripheric blister; The air cavity of the band peripheric blister that is connected with the seat of honour is connected with outlet; Be connected with draft tube with the air cavity of following band peripheric blister that is connected, the air cavity of following seat and coupled band peripheric blister is connected with supporting plate, and supporting plate passes through the pressurizing piston bar and is connected with load cylinder; Motor pump is connected with load cylinder, and the high pressure nitrogen gas cylinder is connected with draft tube, and oil pump is communicated with three axocoels with after oil cylinder is connected.
2. the acting in conjunction stone mechanical testing equipment of gas seepage flow-creep as claimed in claim 1 is characterized in that: the pipeline that oil cylinder is communicated with three axocoels is provided with bladder type hydropneumatic accumulator I and tensimeter I.
3. the acting in conjunction stone mechanical testing equipment of gas seepage flow-creep as claimed in claim 1 is characterized in that: the pipeline that motor pump is connected with load cylinder is provided with bladder type hydropneumatic accumulator II and pressure Table II.
4. the acting in conjunction stone mechanical testing equipment of gas seepage flow-creep as claimed in claim 1, it is characterized in that: described outlet is provided with gas flow meter.
5. the acting in conjunction stone mechanical testing equipment of gas seepage flow-creep as claimed in claim 1 is characterized in that: the pipeline that said high pressure nitrogen gas cylinder is connected with draft tube is provided with rain glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205045142U CN202330236U (en) | 2011-12-07 | 2011-12-07 | Rock mechanical test device under gas seepage-creep combined action |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011205045142U CN202330236U (en) | 2011-12-07 | 2011-12-07 | Rock mechanical test device under gas seepage-creep combined action |
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| CN202330236U true CN202330236U (en) | 2012-07-11 |
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| CN2011205045142U Expired - Fee Related CN202330236U (en) | 2011-12-07 | 2011-12-07 | Rock mechanical test device under gas seepage-creep combined action |
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| CN102494981A (en) * | 2011-12-07 | 2012-06-13 | 湖南科技大学 | Device for testing gas seepage and creepage coupling action of rocks |
| CN102979510A (en) * | 2012-12-05 | 2013-03-20 | 中国矿业大学 | Coal seam water injection displacement gas effect simulated experiment system |
| CN103344496A (en) * | 2013-06-09 | 2013-10-09 | 武汉大学 | Triaxial compression-water (gas) coupling apparatus and test method for rock |
| CN103868841A (en) * | 2014-03-28 | 2014-06-18 | 海安县石油科研仪器有限公司 | Experimental device for determining very low shale permeability and membrane efficiency |
| CN104111218A (en) * | 2014-07-24 | 2014-10-22 | 三峡大学 | Visual rock seepage monitoring device |
| CN104198291A (en) * | 2014-08-11 | 2014-12-10 | 太原理工大学 | Device for measuring radial deformation of rock test sample |
| CN104535455A (en) * | 2015-01-07 | 2015-04-22 | 河南理工大学 | Gas seepage experiment device and method for dynamically monitoring pore pressure distribution and changes |
| CN104596862A (en) * | 2015-01-30 | 2015-05-06 | 辽宁工程技术大学 | Rock creep-seepage coupling test system |
| CN104596905A (en) * | 2014-12-31 | 2015-05-06 | 西南石油大学 | Device and method for measuring permeability of rock in fracturing process |
| CN106840901A (en) * | 2017-04-05 | 2017-06-13 | 辽宁工程技术大学 | A kind of coal and rock many reference amounts monitoring test device under the loading based on true triaxial |
| CN106885740A (en) * | 2017-04-05 | 2017-06-23 | 辽宁工程技术大学 | A kind of coal and rock Creep Mechanics behavior test device under the loading based on true triaxial |
| CN108982214A (en) * | 2018-07-11 | 2018-12-11 | 中国电建集团华东勘测设计研究院有限公司 | Brittle rock degree of injury test method and rock permeability coefficient testing device |
| CN109100487A (en) * | 2018-08-06 | 2018-12-28 | 西安科技大学 | The loaded coal containing methane gas Rock At Low Temperatures environment seepage flow creep of three axis and experiment of machanics system |
| CN110132746A (en) * | 2019-06-19 | 2019-08-16 | 四川大学 | The laboratory experiment simulator and method of triaxial tester progress geological fault mechanical behavior |
| CN110220834A (en) * | 2019-05-30 | 2019-09-10 | 河海大学 | Visualize three axis seepage tests methods of Single Fracture rock stress-seepage flow coupling sample |
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2011
- 2011-12-07 CN CN2011205045142U patent/CN202330236U/en not_active Expired - Fee Related
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102494981B (en) * | 2011-12-07 | 2014-07-09 | 湖南科技大学 | Device for testing gas seepage and creepage coupling action of rocks |
| CN102494981A (en) * | 2011-12-07 | 2012-06-13 | 湖南科技大学 | Device for testing gas seepage and creepage coupling action of rocks |
| CN102979510B (en) * | 2012-12-05 | 2015-06-17 | 中国矿业大学 | Coal seam water injection displacement gas effect simulated experiment system |
| CN102979510A (en) * | 2012-12-05 | 2013-03-20 | 中国矿业大学 | Coal seam water injection displacement gas effect simulated experiment system |
| CN103344496A (en) * | 2013-06-09 | 2013-10-09 | 武汉大学 | Triaxial compression-water (gas) coupling apparatus and test method for rock |
| CN103344496B (en) * | 2013-06-09 | 2015-09-02 | 武汉大学 | A kind of rock triaxial compression-water (gas) coupling device and test method |
| CN103868841A (en) * | 2014-03-28 | 2014-06-18 | 海安县石油科研仪器有限公司 | Experimental device for determining very low shale permeability and membrane efficiency |
| CN103868841B (en) * | 2014-03-28 | 2016-03-02 | 海安县石油科研仪器有限公司 | Measure the experimental provision of extremely low mud shale permeability and membrane efficiency |
| CN104111218A (en) * | 2014-07-24 | 2014-10-22 | 三峡大学 | Visual rock seepage monitoring device |
| CN104198291A (en) * | 2014-08-11 | 2014-12-10 | 太原理工大学 | Device for measuring radial deformation of rock test sample |
| CN104198291B (en) * | 2014-08-11 | 2016-05-25 | 太原理工大学 | A kind of device of measuring rock sample radial deformation |
| CN104596905A (en) * | 2014-12-31 | 2015-05-06 | 西南石油大学 | Device and method for measuring permeability of rock in fracturing process |
| CN104596905B (en) * | 2014-12-31 | 2017-05-24 | 西南石油大学 | Device and method for measuring permeability of rock in fracturing process |
| CN104535455A (en) * | 2015-01-07 | 2015-04-22 | 河南理工大学 | Gas seepage experiment device and method for dynamically monitoring pore pressure distribution and changes |
| CN104596862A (en) * | 2015-01-30 | 2015-05-06 | 辽宁工程技术大学 | Rock creep-seepage coupling test system |
| CN106840901A (en) * | 2017-04-05 | 2017-06-13 | 辽宁工程技术大学 | A kind of coal and rock many reference amounts monitoring test device under the loading based on true triaxial |
| CN106885740A (en) * | 2017-04-05 | 2017-06-23 | 辽宁工程技术大学 | A kind of coal and rock Creep Mechanics behavior test device under the loading based on true triaxial |
| CN106840901B (en) * | 2017-04-05 | 2023-10-03 | 辽宁工程技术大学 | Coal rock mass multi-parameter monitoring test device based on true triaxial loading |
| CN108982214A (en) * | 2018-07-11 | 2018-12-11 | 中国电建集团华东勘测设计研究院有限公司 | Brittle rock degree of injury test method and rock permeability coefficient testing device |
| CN109100487A (en) * | 2018-08-06 | 2018-12-28 | 西安科技大学 | The loaded coal containing methane gas Rock At Low Temperatures environment seepage flow creep of three axis and experiment of machanics system |
| CN110220834A (en) * | 2019-05-30 | 2019-09-10 | 河海大学 | Visualize three axis seepage tests methods of Single Fracture rock stress-seepage flow coupling sample |
| CN110132746A (en) * | 2019-06-19 | 2019-08-16 | 四川大学 | The laboratory experiment simulator and method of triaxial tester progress geological fault mechanical behavior |
| CN110132746B (en) * | 2019-06-19 | 2024-05-10 | 四川大学 | Indoor experimental simulation device and method for performing geological fault mechanical behaviors by triaxial tester |
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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: 20120711 Termination date: 20141207 |
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| EXPY | Termination of patent right or utility model |