CN202330191U - Rock seepage test device under water pressure difference - Google Patents
Rock seepage test device under water pressure difference Download PDFInfo
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- CN202330191U CN202330191U CN2011205199297U CN201120519929U CN202330191U CN 202330191 U CN202330191 U CN 202330191U CN 2011205199297 U CN2011205199297 U CN 2011205199297U CN 201120519929 U CN201120519929 U CN 201120519929U CN 202330191 U CN202330191 U CN 202330191U
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- pressure
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- rock
- sealing gasket
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Abstract
The utility model discloses a rock seepage test device under a water pressure difference. The rock seepage test device comprises an upper pressure head, a lower pressure head, an upper sealing gasket and a lower sealing gasket, wherein the upper sealing gasket is connected with the lower end surface of the upper pressure head; the lower sealing gasket is connected with the upper end surface of the lower pressure head; a first manual pressurizer is connected with a first pressure pipe; the first pressure pipe is connected with the upper pressure head; a second manual pressurizer is connected with a second pressure pipe; and the second pressure pipe is connected with the lower pressure head. According to the rock seepage test device under the water pressure difference, the water pressure and stress coupling effect can be simulated under a laboratory condition, the stress state of a rock body under the combined action of the water pressure and the ground stress can be better simulated in exploitation due to the pressure difference between the water pressures in upper and lower cracks and reliable theoretical basis is provided for rock engineering.
Description
Technical field
The utility model relates to a kind of test unit, rock seepage flow test device under particularly a kind of differential water pressures.
Background technology
At present, in engineering surrounding rocks such as mine, tunnel, extensively exist water pressure and terrestrial stress coupling, cause rock burst under certain conditions, crack propagation causes the underground space and top water body to be linked up, and causes the gushing water accident.According to statistics, the rock mass slope more than 90% is destroyed relevant with groundwater pressure, and 60% mine accident is relevant with groundwater effect, and the big dam failure of the hydroelectric project of 30%-40% is caused by osmosis.In addition; Underground water extraction, oil-gas mining, reservoir-induced earthquake, ground settlement, underground nuke rubbish storage etc. all relate to the interaction and the coupled problem thereof of rock mass acting force, rock mass terrestrial stress, groundwater seepage power, and rock mass damage mechanism is the key subjects with theoretical research value and practical engineering application background under visible research terrestrial stress and the water pressure coupling.The difficulty of carrying out owing to the rupture failure experiment of rock multiple cracks body under hydraulic pressure-stress is bigger, and present many scholars are less for the experimental study means consideration terrestrial stress and the hydraulic pressure coupling of the rupture failure employing of crackle rock under research hydraulic pressure-stress.And because the engineering rock mass crack is more, the water pressure that receives more than place that originates, and might have pressure differential between the water pressure does not test relating to differential water pressures before this, these and engineering physical presence difference.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model provides a kind of crackle rocks material seepage flow test device that contains, and this experimental provision can consider that differential water pressures is to containing the influence of crackle rocks material seepage flow.
For solving the problems of the technologies described above; The solution that the utility model proposes is: rock seepage flow test device under a kind of differential water pressures, and it comprises seaming chuck, push-down head, last sealing gasket, lower seal pad; Last sealing gasket is connected with the lower surface of seaming chuck, and the lower seal pad is connected with the upper surface of push-down head; The first manual pressurizer is connected with first force pipe, and first force pipe is connected with seaming chuck; The second manual pressurizer is connected with second force pipe, and second force pipe is connected with push-down head.
Compared with prior art; The beneficial effect of the utility model is: the inner upper and lower crackle of rocks material sample will directly bear hydraulic action; Simulation hydraulic pressure and stress coupling under laboratory condition; And there is pressure differential in hydraulic pressure in the upper and lower crackle, can better simulation mining in the rock mass many places receive hydraulic pressure and the coefficient stress of terrestrial stress, for rock engineering provides reliable theoretical foundation.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Among the figure: 1, seaming chuck, 2, go up sealing gasket, 3, aperture, 4, built-in crackle, 5, the rocks sample, 6, push-down head, 7, water leg, 8, force pipe, 9, the manual pressure device, 10, force pipe, 11, the manual pressure device, 12, the lower seal pad.
Embodiment
As shown in Figure 1, rock seepage flow test device under a kind of differential water pressures, it comprises that it comprises seaming chuck 1, push-down head 6, last sealing gasket 2, lower seal pad 12, last sealing gasket 2 is connected with the lower surface of seaming chuck 1, and lower seal pad 12 is connected with the upper surface of push-down head 6; The first manual pressurizer 9 is connected with first force pipe 8, and first force pipe 8 is connected with seaming chuck 1; The second manual pressurizer 11 is connected with second force pipe 10, and second force pipe 10 is connected with push-down head 6.
During use, contain two apertures 3 and communicate with it the rocks sample 5 of built-in crackle, place between sealing gasket 2 and the lower seal pad 12, pressing machine vertically acts on the upper surface of seaming chuck 1.Under the vertical pressure that pressing machine applies; The first manual pressurizer 9 is annotated water in the seaming chuck 1 and the second manual pressurizer 11 through first force pipe 8 water is annotated in push-down head 6 through second force pipe 10; Aperture 3 to crackle 4 in sample; Seaming chuck 1 place's hydraulic pressure is higher than push-down head 6 place's hydraulic pressure, keeps differential water pressures.Under the vertical pressure and hydraulic pressure acting in conjunction that pressing machine applies, the crackle 4 in the rocks sample 5 is expanded perforation gradually, realizes seepage tests under the differential water pressures.
Claims (1)
1. rock seepage flow test device under the differential water pressures, it is characterized in that: it comprises seaming chuck, push-down head, last sealing gasket, lower seal pad, last sealing gasket is connected with the lower surface of seaming chuck, and the lower seal pad is connected with the upper surface of push-down head; The first manual pressurizer is connected with first force pipe, and first force pipe is connected with seaming chuck; The second manual pressurizer is connected with second force pipe, and second force pipe is connected with push-down head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205199297U CN202330191U (en) | 2011-12-14 | 2011-12-14 | Rock seepage test device under water pressure difference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205199297U CN202330191U (en) | 2011-12-14 | 2011-12-14 | Rock seepage test device under water pressure difference |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202330191U true CN202330191U (en) | 2012-07-11 |
Family
ID=46442169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205199297U Expired - Fee Related CN202330191U (en) | 2011-12-14 | 2011-12-14 | Rock seepage test device under water pressure difference |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202330191U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103776703A (en) * | 2014-01-24 | 2014-05-07 | 山东大学 | Hydro-fracturing water injection loading device based on rock-like resin sample and test method |
| CN103822835A (en) * | 2014-03-18 | 2014-05-28 | 中国矿业大学 | Method for separating viscosity-elasticity-plasticity characteristic parameters in triaxial rheological test on rocks |
| CN109425520A (en) * | 2017-08-25 | 2019-03-05 | 核工业北京地质研究院 | A kind of sample preparation methods of large scale Single Fracture rock mass stress seepage coupling test |
-
2011
- 2011-12-14 CN CN2011205199297U patent/CN202330191U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103776703A (en) * | 2014-01-24 | 2014-05-07 | 山东大学 | Hydro-fracturing water injection loading device based on rock-like resin sample and test method |
| CN103776703B (en) * | 2014-01-24 | 2015-11-18 | 山东大学 | Based on hydrofracturing water filling charger and the test method of rocks resin test specimen |
| CN103822835A (en) * | 2014-03-18 | 2014-05-28 | 中国矿业大学 | Method for separating viscosity-elasticity-plasticity characteristic parameters in triaxial rheological test on rocks |
| CN109425520A (en) * | 2017-08-25 | 2019-03-05 | 核工业北京地质研究院 | A kind of sample preparation methods of large scale Single Fracture rock mass stress seepage coupling test |
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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: 20141214 |
|
| EXPY | Termination of patent right or utility model |