CN108956427A - Rock sample seepage experimental apparatus and its experimental method - Google Patents
Rock sample seepage experimental apparatus and its experimental method Download PDFInfo
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- CN108956427A CN108956427A CN201811118535.3A CN201811118535A CN108956427A CN 108956427 A CN108956427 A CN 108956427A CN 201811118535 A CN201811118535 A CN 201811118535A CN 108956427 A CN108956427 A CN 108956427A
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- seepage
- outer housing
- sample
- resilient sleeve
- pressure
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
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- Dispersion Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention relates to rock sample seepage experimental apparatus and its experimental methods, including seepage flow water-pressure regulating device and sample sealing device, sample sealing device includes the outer housing of tubulose, the both ends of outer housing are equipped with cricoid cover board, the outer rim and outer housing of cover board are tightly connected, resilient sleeve is additionally provided between two cover boards, the both ends of resilient sleeve are tightly connected with the both ends of outer housing respectively, closed seal chamber is formed between resilient sleeve and outer housing, seal chamber is connected to by first pipe with seepage flow water-pressure regulating device；The upper switching device of connection seepage flow water-pressure regulating device is equipped with positioned at the cover board of the upper end of outer housing, the cover board positioned at the lower end of outer housing is equipped with seepage flow water collection pipe, and sample is in the resilient sleeve between upper switching device and seepage flow water collection pipe.The upper end to sample and the seal chamber pressure supply simultaneously of seepage flow water-pressure regulating device, the external and internal pressure of resilient sleeve is consistent, can balance the pressure on its sealing surface, and sealing effect is good.
Description
Technical field
The present invention relates to rock seepage tests room technical field of measuring equipment more particularly to rock sample seepage experimental apparatus
And its experimental method.
Background technique
Crack rock is the complex dielectrics that the various engineerings such as China's water conservancy, mine, tunnel, nuclear waste storage frequently encounter,
Its Penetration Signature research is one of the hot spot of current rock mass mechanics research field.For there are the rock mass in crack, when being deposited in crack
When water, the pressure of water will lead to rock mass gradually unstable failure；On a macroscopic scale, the presence and change of seepage field are to lead
Fracturing gap rock mass engineering project unstability, even results in the one of the major reasons of extensive geological disaster.Therefore research crack is to rock mass work
The influence of journey is just it should be understood that the Penetration Signature of crack rock.
Although domestic and international expert obtains in terms of penetrating through fracture seepage, in the research in terms of tight rock seepage flow with scholar
Some progress.But sealing problem when seepage flow is tested is always a technological difficulties for perplexing academia, is especially being carried out
The problem of sealing when high pressure seepage tests seems especially prominent.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of good rock sample seepage experimental apparatus of sealing effect.
In order to solve the above technical problems, the technical scheme is that rock sample seepage experimental apparatus, including seepage water
It presses regulating device and sample sealing device, the sample sealing device includes the outer housing of tubulose, the both ends of the outer housing are set
There is cricoid cover board, the outer rim of the cover board and the outer housing are tightly connected, and are additionally provided with resilient sleeve between two cover boards, institute
The both ends for stating resilient sleeve are tightly connected with the both ends of the outer housing respectively, are formed between the resilient sleeve and the outer housing
Closed seal chamber, the seal chamber are connected to by first pipe with the seepage flow water-pressure regulating device；Positioned at the outer housing
The cover board of upper end be equipped with the upper switching device for connecting the seepage flow water-pressure regulating device, under the outer housing
The cover board at end is equipped with seepage flow water collection pipe, and sample is described between the upper switching device and the seepage flow water collection pipe
In resilient sleeve.
The cover board includes the transfer tube with outer housing coaxial arrangement, the switching as a preferred technical solution,
Pipe is equipped with ring flange towards one end of the outer housing；The inner wall of the transfer tube is equipped with screw thread.
The both ends of the resilient sleeve are equipped with the interconnecting piece extended to its outside, the connection as a preferred technical solution,
Portion is between the ring flange and the outer housing.
As a preferred technical solution, between the interconnecting piece and the ring flange and the interconnecting piece and the outer housing
Between be equipped with glue line.
The upper switching device includes and the matched connecting tube of the transfer tube, the company as a preferred technical solution,
Adapter tube is connect by second pipe with the seepage flow water-pressure regulating device, and the second pipe is equipped with second switch valve；It is described
First pipe is equipped with first switch valve.
The connecting tube and the seepage flow water collection pipe extend into the resilient sleeve as a preferred technical solution,.
The inside of the resilient sleeve is equipped with seal coating as a preferred technical solution,.
The seal coating is elastomer layer as a preferred technical solution,.
By adopting the above-described technical solution, rock sample seepage experimental apparatus, by resilient sleeve to the side wall of sample into
Row sealing so that water flow can only be permeated by the gap of sample, due to formed between resilient sleeve and outer housing seal chamber and
Seepage flow water-pressure regulating device is simultaneously to sample and seal chamber pressure supply, so that consistent with the external and internal pressure of the resilient sleeve of sample contacts,
The pressure on its sealing surface can be balanced, sealing effect is good.
Another technical problem to be solved by this invention be to provide a kind of above-mentioned rock sample seepage experimental apparatus of application into
The method of row experiment.
In order to solve the above technical problems, the technical scheme is that being first filled with gas or liquid, gas into seal chamber
Or the pressure of liquid is not less than the seepage pressure of sample load；Cavity pressure to be sealed adjusts dress by seepage flow hydraulic pressure again after stablizing
It sets to the upper end of sample and persistently feeds the stable water flow of pressure, seepage flow water collection pipe connection collection device is seeped to behind sample gap
Saturating water is collected.
The stable water flow of pressure is fed into seal chamber by seepage flow water-pressure regulating device as a preferred technical solution,
Cavity pressure to be sealed closes the water supply pipe of seal chamber after stablizing.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the embodiment of the present invention；
The structural schematic diagram of resilient sleeve in Fig. 2 embodiment of the present invention.
Specific embodiment
As depicted in figs. 1 and 2, rock sample seepage experimental apparatus, including seepage flow water-pressure regulating device 9 and sample sealing dress
It sets.Wherein, seepage flow water-pressure regulating device 9 includes high pressure gas holder and water tank, stablizes the pressure of water tank by high pressure gas holder, from
And the hydraulic pressure for the water that steady oriented specimen provides.The sample sealing device includes the outer housing 6 of tubulose, and the two of the outer housing 6
End is equipped with cricoid cover board, and the cover board includes the transfer tube 15 with the outer housing 6 coaxial arrangement, 15 direction of transfer tube
One end of the outer housing 6 is equipped with ring flange 14；The inner wall of the transfer tube 15 is equipped with screw thread.The outer rim of the cover board and institute
State the sealed connection of outer housing 6, be additionally provided with resilient sleeve 4 between two cover boards, the both ends of the resilient sleeve 4 respectively with the shell
The both ends of body 6 are tightly connected；Closed seal chamber 5, the seal chamber 5 are formed between the resilient sleeve 4 and the outer housing 6
It is connected to by first pipe 7 with the seepage flow water-pressure regulating device 9；It is set on the cover board of the upper end of the outer housing 6
There is the upper switching device for connecting the seepage flow water-pressure regulating device 9, the upper switching device includes matching with the transfer tube 15
Connecting tube 12, the connecting tube 12 connect by second pipe 11 with the seepage flow water-pressure regulating device 9, the second pipe
11 are equipped with second switch valve 10；7 are equipped with first switch valve 8 in the first pipe.Institute positioned at the lower end of the outer housing 6
Cover board is stated equipped with seepage flow water collection pipe 17, sample 13 is between the upper switching device and the seepage flow water collection pipe 17
In the resilient sleeve 4.
When being tested using above-mentioned rock sample seepage experimental apparatus: being first filled with gas or liquid, gas into seal chamber 5
The pressure of body or liquid is not less than sample seepage pressure；Pressure stabilizes again through seepage flow water-pressure regulating device 9 in chamber 5 to be sealed
The stable water flow of pressure is persistently fed to the upper end of sample, seepage flow water collection pipe 17 connects collection device and receives to seepage water
Collection.Wherein, the stable water flow of pressure is fed into seal chamber 5 by seepage flow water-pressure regulating device 9, pressure is steady in chamber 5 to be sealed
The water supply pipe of seal chamber 5 is closed after fixed.
In order to facilitate the connection of resilient sleeve 4 and outer housing 6, the both ends of the resilient sleeve 4 are equipped with the company extended to its outside
Socket part 19, the interconnecting piece 19 is between the ring flange 14 and the outer housing 6.The interconnecting piece 19 and the ring flange
Glue line is equipped between 14 and between the interconnecting piece 19 and the outer housing 6.Ring flange 14 and outer housing 6 pass through spiral shell
The combination of bolt, nut carries out firm connection, and resilient sleeve 4 has sealing well under the extruding of ring flange 16 and outer housing 6
Effect.
Further, the connecting tube 12 and the seepage flow water collection pipe 17 extend into the resilient sleeve 4, resilient sleeve
4 also form preliminary sealing to connecting tube 12 and cover board, and sealing effect is good.
There is the smoothness consistency of the side wall of sample 13 poor, resilient sleeve 4 adapts to the shape of sample 13, is formed close well
Envelope, in order to improve the service life of resilient sleeve 4, the inside of the resilient sleeve 4 is equipped with seal coating 18, and the seal coating 18 is
Elastomer layer, elastomeric seal wear resistance is good, can be good at the demand for adapting to sample experiment.
The above shows and describes the basic principle, main features and advantages of the invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (10)
1. rock sample seepage experimental apparatus, including seepage flow water-pressure regulating device and sample sealing device, it is characterised in that: described
Sample sealing device includes the outer housing of tubulose, and the both ends of the outer housing are equipped with cricoid cover board, the outer rim of the cover board with
The outer housing is tightly connected, and is additionally provided with resilient sleeve between two cover boards, the both ends of the resilient sleeve respectively with the shell
The both ends of body are tightly connected, and closed seal chamber are formed between the resilient sleeve and the outer housing, the seal chamber passes through
First pipe is connected to the seepage flow water-pressure regulating device；The cover board positioned at the upper end of the outer housing is equipped with connection institute
The upper switching device for stating seepage flow water-pressure regulating device, the cover board positioned at the lower end of the outer housing are equipped with seepage flow water collection pipe,
Sample is in the resilient sleeve between the upper switching device and the seepage flow water collection pipe.
2. rock sample seepage experimental apparatus as described in claim 1, it is characterised in that: the cover board includes and the shell
The transfer tube of body coaxial arrangement, the transfer tube are equipped with ring flange towards one end of the outer housing；The inner wall of the transfer tube
It is equipped with screw thread.
3. rock sample seepage experimental apparatus as claimed in claim 2, it is characterised in that: the both ends of the resilient sleeve be equipped with to
The interconnecting piece that its outside extends, the connecting portion is between the ring flange and the outer housing.
4. rock sample seepage experimental apparatus as claimed in claim 3, it is characterised in that: the interconnecting piece and the ring flange
Between and the interconnecting piece and the outer housing between be equipped with glue line.
5. the rock sample seepage experimental apparatus as described in any one of claim 2 to 4, it is characterised in that: the upper switching
Device includes passing through second pipe and the seepage flow water-pressure regulating device with the matched connecting tube of the transfer tube, the connecting tube
Connection, the second pipe are equipped with second switch valve；The first pipe is equipped with first switch valve.
6. rock sample seepage experimental apparatus as claimed in claim 5, it is characterised in that: the connecting tube and the seepage water
Collecting pipe extends into the resilient sleeve.
7. rock sample seepage experimental apparatus as described in claim 1, it is characterised in that: the inside of the resilient sleeve is equipped with close
Seal coating.
8. rock sample seepage experimental apparatus as claimed in claim 7, it is characterised in that: the seal coating is elastomer
Layer.
9. the experimental method of application such as rock sample seepage experimental apparatus described in any item of the claim 1 to 8, feature exist
In: first it is filled with gas or liquid into seal chamber, the pressure of gas or liquid is not less than the seepage pressure of sample load；It is to be sealed
Cavity pressure persistently feeds the stable water flow of pressure, seepage water to the upper end of sample by seepage flow water-pressure regulating device again after stablizing
Collecting pipe connection collection device is collected the water permeated behind sample gap.
10. applying the experimental method of rock sample seepage experimental apparatus as claimed in claim 9, it is characterised in that: pass through infiltration
Stream water-pressure regulating device feeds the stable water flow of pressure into seal chamber, and cavity pressure to be sealed closes the confession of seal chamber after stablizing
Water lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811118535.3A CN108956427A (en) | 2018-09-25 | 2018-09-25 | Rock sample seepage experimental apparatus and its experimental method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811118535.3A CN108956427A (en) | 2018-09-25 | 2018-09-25 | Rock sample seepage experimental apparatus and its experimental method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108956427A true CN108956427A (en) | 2018-12-07 |
Family
ID=64472249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811118535.3A Pending CN108956427A (en) | 2018-09-25 | 2018-09-25 | Rock sample seepage experimental apparatus and its experimental method |
Country Status (1)
| Country | Link |
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| CN (1) | CN108956427A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111398024A (en) * | 2020-04-20 | 2020-07-10 | 中山大学 | True triaxial rock seepage test loading device and test system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202532922U (en) * | 2012-04-28 | 2012-11-14 | 郑州海波源工贸有限公司 | Steam waste heat recovery device |
| CN203598209U (en) * | 2013-08-27 | 2014-05-21 | 山东施尔明眼科医院 | Conveniently-fixed warming moxibustion box |
| CN203672759U (en) * | 2014-01-23 | 2014-06-25 | 西安科技大学 | Osmosis device for crushed rock triaxial seepage test |
| CN106546527A (en) * | 2016-11-25 | 2017-03-29 | 浙江科技学院（浙江中德科技促进中心） | For measuring the permeameter of rock permeability |
| CN108216942A (en) * | 2016-12-22 | 2018-06-29 | 丰田自动车株式会社 | Vacuum insulated vessel |
-
2018
- 2018-09-25 CN CN201811118535.3A patent/CN108956427A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202532922U (en) * | 2012-04-28 | 2012-11-14 | 郑州海波源工贸有限公司 | Steam waste heat recovery device |
| CN203598209U (en) * | 2013-08-27 | 2014-05-21 | 山东施尔明眼科医院 | Conveniently-fixed warming moxibustion box |
| CN203672759U (en) * | 2014-01-23 | 2014-06-25 | 西安科技大学 | Osmosis device for crushed rock triaxial seepage test |
| CN106546527A (en) * | 2016-11-25 | 2017-03-29 | 浙江科技学院（浙江中德科技促进中心） | For measuring the permeameter of rock permeability |
| CN108216942A (en) * | 2016-12-22 | 2018-06-29 | 丰田自动车株式会社 | Vacuum insulated vessel |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111398024A (en) * | 2020-04-20 | 2020-07-10 | 中山大学 | True triaxial rock seepage test loading device and test system |
| CN111398024B (en) * | 2020-04-20 | 2021-11-05 | 中山大学 | True triaxial rock seepage test loading device and test system |
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