CN107860697A - A kind of rock fracture shearing seepage flow test device and its test method - Google Patents
A kind of rock fracture shearing seepage flow test device and its test method Download PDFInfo
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- CN107860697A CN107860697A CN201711092379.3A CN201711092379A CN107860697A CN 107860697 A CN107860697 A CN 107860697A CN 201711092379 A CN201711092379 A CN 201711092379A CN 107860697 A CN107860697 A CN 107860697A
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- 239000011435 rock Substances 0.000 title claims abstract description 73
- 238000010008 shearing Methods 0.000 title claims abstract description 59
- 238000012360 testing method Methods 0.000 title claims abstract description 25
- 238000010998 test method Methods 0.000 title claims abstract description 10
- 238000002474 experimental method Methods 0.000 claims abstract description 20
- 238000006073 displacement reaction Methods 0.000 claims abstract description 18
- 239000004568 cement Substances 0.000 claims abstract description 15
- 238000001764 infiltration Methods 0.000 claims abstract description 8
- 230000008595 infiltration Effects 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 43
- 238000005259 measurement Methods 0.000 claims description 11
- 230000008859 change Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 238000011160 research Methods 0.000 description 6
- 238000007789 sealing Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 240000002853 Nelumbo nucifera Species 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 2
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000035800 maturation Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Classifications
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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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- Chemical & Material Sciences (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)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a kind of rock fracture shearing seepage flow test device and its test method, it is related to rock mechanics experiment technical field.Experimental rig is made up of upper shear box, down cut box, upper shearing ring, down cut cylinder, and down cut cylinder interior has closed aperture connection supply channel to load hydraulic pressure to rock sample.Its test procedure is：Installation crack sample in upper shearing ring and down cut cylinder is isolated in by cement placement and plasticine, crack sample side rubber sleeve surrounds and avoids leak between sample side and rubber sleeve, and the rubber sleeve is equipped with delivery port；Upper shearing ring and down cut cylinder assembly are put into down cut box and upper shear box；Connection supply channel and the pipeline that catchments；Measure loaded load and displacement and infiltration capacity；Determination data is collected by computer and is depicted as form.The present invention is used to realize that rock fracture shears seepage tests, studies the change of rock fracture seepage discharge in shear history.
Description
Technical field
The present invention relates to rock mechanics experiment technical field, and in particular to a kind of rock fracture shearing seepage tests dress
Put and its test method.
Background technology
In rock mass engineering project, underground water is to influence one of an important factor for rock mass engineering project is stable, and rock mass is by sillar and crack
Composition, crack is the main thoroughfare of water guide, and because sillar is harder, most of normal direction and tangential displacement betide rock and split
Gap, therefore stress is to the permeability important of crack rock.Domestic and foreign scholars are in normal load and circumferential load to rock
Research in terms of stony fracture gap Permeability makes some progress, and mainly uses two kinds of sides of laboratory test and numerical simulation
Method.
Shearing seepage tests use linear flow method more at present, and sample crack both sides are sealed with rubber pocket, entered from other both sides
Water and water outlet.This mode has the disadvantage that：1. it is required that lateral rubber pocket has larger elasticity, can neither be ruptured in shear history
Leak, excessive shearing force can not be produced again；2. need to apply rubber pocket makes it be in close contact with rock sample compared with big load, work as load
When lotus is relatively low, the bad lateral leak of generation may be sealed, when load is larger, sillar produces relative shear displacement to sample up and down
When, rubber pocket may be destroyed.And radiant flux experiment does not need the sealing of crack Liang Ge sides, as long as being intake from the hole heart, from crack
Water outlet, it is possible to when realizing that Single Fracture rock radiant flux is tested, but realizing rock fracture shearing and seepage flow simultaneously, rock fracture
Water inlet and water outlet also without maturation method.
Therefore, the factor for influenceing rock fracture index is analyzed and ground to how to reduce prediction index error
Study carefully improvement tool to be of great significance, based on this, design a kind of rock fracture shearing seepage flow test device and its test method
It is particularly necessary.
The content of the invention
In view of the shortcomings of the prior art, the present invention seeks to be to provide a kind of rock fracture shearing seepage tests
Device and its test method, accurate test parameters is provided in research shearing seepage flow is to rock fracture face, in engineering research
In relatively, can more accurately determine shearing seepage flow to rock fracture face ring, be more beneficial for analyze rock fracture influence
Index, use easy to spread.
To achieve these goals, the present invention is to realize by the following technical solutions：A kind of rock fracture shearing is oozed
Experimental rig, including upper shear box, down cut box, upper shearing ring, down cut cylinder composition are flowed, upper shear box, down cut box are formed
Cutting system, is provided with down cut cylinder in down cut box, and down cut cylinder side is provided with down cut cylinder outer shroud, on the outside of down cut cylinder
Down cut cylinder water inlet is provided with, down cut cylinder water inlet passes sequentially through vertical direction water inlet, the connection of horizontal direction water inlet
To the down cut box base aperture on down cut cylinder bottom seat, shearing ring is provided with upper shear box, upper shear box is with
Delivery port is led between shear box.
Preferably, described experimental rig also includes Loading Control System, measuring system, fluid source loading system,
Wherein, described Loading Control System is realized using the RD200 boxshear apparatus of GCTS companies production, it is possible to provide normal load and shearing
Load load mode, and real-time control can be carried out to experiment overall process by control system.
Described measuring system include normal direction load when load and rock cranny displacement measurement, shearing loading when load and
The measurement of rock cranny infiltration capacity, normal load and shear-type load during the measurement of rock cranny displacement and whole experiment
It can be determined by Loading Control System, the displacement that rock cranny occurs when being stressed during experiment can be by displacement
Sensor is measured, and displacement transducer is mounted with respectively in the horizontal direction and normal orientation of shearing rock cranny, can be more accurately
Record out crack displacement in experiment overall process；The measurement of rock cranny infiltration capacity is by determining during experiment using catchmenting
Pipe collection is reacted in the water that fissure-plane penetrates.
Described fluid source loading system is made up of water system, hydrostate, collecting system three parts, water system
Middle head is provided by adjusting hydraulic control valve in supply channel；Hydrostate acts on the stability for ensuring water supply pressure, significantly
Improve the accuracy of shearing seepage tests；Collecting system mainly includes outlet pipe, collection bottle and balance.
A kind of test method of rock fracture shearing seepage flow test device, its step are：
(1) installation crack sample, crack sample side in upper shearing ring and down cut cylinder are isolated in by cement placement and plasticine
Face rubber sleeve surrounds and avoids leak between sample side and rubber sleeve, and the rubber sleeve is equipped with delivery port；
(2) upper shearing ring and down cut cylinder assembly are put into down cut box and upper shear box；
(3) supply channel and the pipeline that catchments are connected；
(4) loaded load and displacement and infiltration measurement；
(5) measured quantity data are collected by computer and is depicted as form.
Its specific test operation is as follows：The cylindrical sample that bottom × high size is 50 × 100 mm is processed first；Utilize instrument
Device cleaves to rock sample, forms the horizontal fissure face parallel with end face, while the latter half is tested in rock sample
The heart drills out the aperture that a diameter is about 6mm, and manufactured the latter half experiment rock sample is then put into down cut cylinder
On base, while ensure the latter half rock sample central small hole and down cut box base small hole center point-blank, profit
The latter half experiment rock sample is connected with down cut cylinder bottom seat with heat-shrink tube, using under lower floor's cement placement thing filling
Shear cylinder, fixed the latter half experiment rock sample, while rock fracture surrounding is enclosed on using rock sample crack rubber cutting ferrule,
And a tiny water pipe is drawn to delivery port, it is easy to collect the water flowed out in shear history；Utilize upper circular clip, lower circle
Clip fixes upper shearing ring and down cut cylinder, spreads one layer of plasticine and is used to prevent shearing ring cement and down cut cylinder cement from connecing
Touch, recycle upper strata cement charges to fill whole shearing ring, after thing to be filled is fixed, upper shearing ring and down cut cylinder are combined
Body is put into down cut box, now removes circular clip, lower circular clip, installs shear box, in guarantee shear box with
Down cut box forms cutting system；After shear installs, connection water pump and down cut cylinder water inlet, turn on the power, adjust
Water saving pump hydraulic pressure, normal load and shear load, carry out shearing seepage tests.
Beneficial effects of the present invention：Accurate test parameters is provided in research shearing seepage flow is to rock fracture face,
In engineering research relatively, it is more beneficial for analyzing rock fracture influence index.
Brief description of the drawings
Describe the present invention in detail with reference to the accompanying drawings and detailed description；
Fig. 1 is the front view of experimental rig of the present invention；
Fig. 2 is the top view of experimental rig of the present invention.
Embodiment
To be easy to understand the technical means, the inventive features, the objects and the advantages of the present invention, with reference to
Embodiment, the present invention is expanded on further.
Reference picture 1-2, present embodiment use following technical scheme：A kind of rock fracture shearing seepage tests dress
Put, including Loading Control System, measuring system, fluid source loading system, shear box and its sealing system four systemses, it is described
Loading Control System is the Loading Control System in the RD200 boxshear apparatus using the production of GCTS companies, it is possible to provide normal load 20
With the load mode of shear-type load 21, and can by control system to experiment overall process carry out real-time control.
Described measuring system include normal direction load when load and rock cranny displacement measurement, shearing loading when load and
The measurement of rock cranny infiltration capacity, normal load 20 and shearing carry during the measurement of rock cranny displacement and whole experiment
Lotus 21 can be determined by Loading Control System, and the displacement that rock cranny occurs when being stressed during experiment can be by
Displacement sensor, displacement transducer is mounted with respectively in the horizontal direction and normal orientation of shearing rock cranny, can be more accurate
Really record out crack displacement in experiment overall process；The measurement of rock cranny infiltration capacity is to be utilized by determining during experiment
Collector pipe collection is reacted in the water that fissure-plane penetrates.
Described fluid source loading system is made up of water system, hydrostate, collecting system three parts, water system
Middle head is provided by adjusting hydraulic control valve in supply channel；Hydrostate acts on the stability for ensuring water supply pressure, significantly
Improve the accuracy of shearing seepage tests；Collecting system mainly includes outlet pipe, collection bottle and balance.
Described shear box and its sealing system are by upper shear box 1, down cut box 2, upper shearing ring 3,4 groups of down cut cylinder
Into upper shear box 1, down cut box 2 form cutting system, are provided with down cut cylinder 4 in down cut box 2, the side of down cut cylinder 4 is set
Down cut cylinder outer shroud 8 is equipped with, the outside of down cut cylinder 4 is provided with down cut cylinder water inlet 13, and down cut cylinder water inlet 13 leads to successively
Cross vertical direction water inlet 14, down cut box base that horizontal direction water inlet 15 is communicated on down cut cylinder bottom seat 7 it is small
Hole 16, shearing ring 3 is provided with upper shear box 1, delivery port 19 is led between upper shear box 1 and down cut box 2.Shear box
And its sealing system is the innovation entirely designed, shear box, upper shearing ring and down cut cylinder constitute sealing system.Under cut
Cutting cylinder interior has closed aperture connection supply channel to load hydraulic pressure to rock sample.
A kind of test method of rock fracture shearing seepage flow test device, its step are：
(1) installation crack sample, crack sample side in upper shearing ring and down cut cylinder are isolated in by cement placement and plasticine
Face rubber sleeve surrounds and avoids leak between sample side and rubber sleeve, and the rubber sleeve is equipped with delivery port；
(2) upper shearing ring and down cut cylinder assembly are put into down cut box and upper shear box；
(3) supply channel and the pipeline that catchments are connected；
(4) loaded load and displacement and infiltration measurement；
(5) measured quantity data are collected by computer and is depicted as form.
Specifically, its test operation is as follows：The cylindrical sample that bottom × high size is 50 × 100 mm is processed first；Utilize
Instrument cleaves to rock sample, forms the horizontal fissure face parallel with end face, while test rock sample to the latter half
10 centers drill out the aperture that a diameter is about 6mm, and then manufactured the latter half experiment rock sample 10 is put into down
On shear cylinder base 7, while ensure the latter half rock sample central small hole 17 with the center of down cut box base aperture 16 one
On bar straight line, the latter half experiment rock sample 10 is connected with down cut cylinder bottom seat 7 using heat-shrink tube, utilizes lower floor's water
Mud charges 6 fill down cut cylinder 4, fixed the latter half experiment rock sample 10, while utilize rock sample crack rubber card
Set 18 is enclosed on rock fracture surrounding, and draws a tiny water pipe to delivery port 19, is easy to collect what is flowed out in shear history
Water；Upper shearing ring 3 is fixed with down cut cylinder 4 using upper circular clip 11, lower circular clip 12, one layer of plasticine is spread and is used to prevent
Only upper shearing ring cement and down cut cylinder cements, recycle upper strata cement charges 5 to fill whole shearing ring, thing to be filled
After fixation, upper shearing ring 3 and the assembly of down cut cylinder 4 are put into down cut box 2, now remove circular clip 11, lower circle
Shape clip 12, shear box 1 is installed, shear box 1 forms a cutting system closed with down cut box 2 in guarantee；Shearing
After device installs, connection water pump and down cut cylinder water inlet 13, turn on the power, regulation water pump hydraulic pressure, the and of normal load 20
Shear load 21, carry out shearing seepage tests.
Present embodiment can more accurately determine shearing seepage flow and rock fracture face is rung, and technology maturation, grind
Shearing seepage flow is studied carefully to providing accurate test parameters in rock fracture face, in engineering research relatively, is more beneficial for point
Rock fracture influence index is analysed, there is wide market application foreground.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, 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 (2)
1. a kind of rock fracture shears seepage flow test device, it is characterised in that including upper shear box (1), down cut box (2), on
Shearing ring (3), down cut cylinder (4), upper shear box (1), down cut box (2) form cutting system, are provided with down cut box (2)
Down cut cylinder (4), down cut cylinder (4) side are provided with down cut cylinder outer shroud (8), down cut are provided with the outside of down cut cylinder (4)
Cylinder water inlet (13), down cut cylinder water inlet (13) pass sequentially through vertical direction water inlet (14), horizontal direction water inlet (15)
The down cut box base aperture (16) being communicated on down cut cylinder bottom seat (7), upper shear box (1) is interior to be provided with shearing ring
(3), delivery port (19) is led between upper shear box (1) and down cut box (2).
2. the test method of a kind of rock fracture shearing seepage flow test device, it is characterised in that its step is：
1. installation crack sample, crack sample side in upper shearing ring and down cut cylinder are isolated in by cement placement and plasticine
Surrounded with rubber sleeve and avoid leak between sample side and rubber sleeve, the rubber sleeve is equipped with delivery port；
2. upper shearing ring and down cut cylinder assembly are put into down cut box and upper shear box；
3. connection supply channel and the pipeline that catchments；
4. loaded load and displacement and infiltration measurement；
5. measured quantity data are collected by computer and are depicted as form；
Its specific test operation is as follows：The cylindrical sample that bottom × high size is 50 × 100 mm is processed first；Utilize instrument pair
Rock sample is cleaved, and forms the horizontal fissure face parallel with end face, while the latter half is tested in rock sample (10)
The heart drills out the aperture that a diameter is about 6mm, and then manufactured the latter half experiment rock sample (10) is put into down and cut
Cut on cylinder bottom seat (7), while ensure the latter half rock sample central small hole (17) and down cut box base aperture (16) center
Point-blank, rock sample (10) is tested in the latter half using heat-shrink tube to connect with down cut cylinder bottom seat (7), profit
With lower floor's cement placement thing (6) filling down cut cylinder (4), rock sample (10) is tested in fixed the latter half, while utilizes rock
Sample crack rubber cutting ferrule (18) is enclosed on rock fracture surrounding, and draws a tiny water pipe to delivery port (19), is easy to receive
The water flowed out in collection shear history；Using upper circular clip (11), lower circular clip (12) upper shearing ring (3) and down cut cylinder
(4) it is fixed, spread one layer of plasticine and be used to prevent shearing ring cement and down cut cylinder cements, recycle upper strata cement placement
Thing (5) fills whole shearing ring, and after thing to be filled is fixed, upper shearing ring (3) and down cut cylinder (4) assembly are put into down cut
In box (2), circular clip (11), lower circular clip (12) are now removed, installs shear box (1), shear box in guarantee
(1) cutting system of a closing is formed with down cut box (2)；After shear installs, connection water pump and down cut cylinder
Water inlet (13), is turned on the power, and regulation water pump hydraulic pressure, normal load (20) and shear load (21), carries out shearing seepage tests.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711092379.3A CN107860697A (en) | 2017-11-08 | 2017-11-08 | A kind of rock fracture shearing seepage flow test device and its test method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711092379.3A CN107860697A (en) | 2017-11-08 | 2017-11-08 | A kind of rock fracture shearing seepage flow test device and its test method |
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| CN107860697A true CN107860697A (en) | 2018-03-30 |
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| CN201711092379.3A Pending CN107860697A (en) | 2017-11-08 | 2017-11-08 | A kind of rock fracture shearing seepage flow test device and its test method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030319A (en) * | 2018-10-07 | 2018-12-18 | 河南工程学院 | A kind of device and method measuring rock seepage flow |
| CN109374498A (en) * | 2018-10-29 | 2019-02-22 | 河海大学 | A kind of Single Fracture Seepage of Rock Masses stress coupling system and method |
| CN110687274A (en) * | 2019-11-18 | 2020-01-14 | 河南工程学院 | Rock shearing-seepage testing machine and testing method thereof |
| CN111089826A (en) * | 2019-12-31 | 2020-05-01 | 河海大学 | Contact surface large-deformation shear seepage test device and use method |
| CN111175213A (en) * | 2020-01-17 | 2020-05-19 | 三峡大学 | Image numeralization experimental device for rock fracture visual seepage opening degree test and use method |
| CN111735691A (en) * | 2020-08-11 | 2020-10-02 | 吉林大学 | Oil gas collection and thermal coupling shear rheology testing device during oil shale temperature-changing pyrolysis |
| CN112284930A (en) * | 2020-09-30 | 2021-01-29 | 中国科学院武汉岩土力学研究所 | Multidirectional rock shearing-seepage coupling test method with acoustic test function |
| CN113155640A (en) * | 2021-04-15 | 2021-07-23 | 清华大学 | High-temperature rock mass fracture shearing seepage heat exchange test system |
| CN113391012A (en) * | 2021-06-10 | 2021-09-14 | 中山大学 | Rock shear test device |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030319A (en) * | 2018-10-07 | 2018-12-18 | 河南工程学院 | A kind of device and method measuring rock seepage flow |
| CN109374498A (en) * | 2018-10-29 | 2019-02-22 | 河海大学 | A kind of Single Fracture Seepage of Rock Masses stress coupling system and method |
| CN109374498B (en) * | 2018-10-29 | 2021-06-25 | 河海大学 | Single-crack rock mass seepage stress coupling system and method |
| CN110687274A (en) * | 2019-11-18 | 2020-01-14 | 河南工程学院 | Rock shearing-seepage testing machine and testing method thereof |
| CN110687274B (en) * | 2019-11-18 | 2022-01-11 | 河南工程学院 | Rock shearing-seepage testing machine and testing method thereof |
| CN111089826A (en) * | 2019-12-31 | 2020-05-01 | 河海大学 | Contact surface large-deformation shear seepage test device and use method |
| CN111175213A (en) * | 2020-01-17 | 2020-05-19 | 三峡大学 | Image numeralization experimental device for rock fracture visual seepage opening degree test and use method |
| CN111735691A (en) * | 2020-08-11 | 2020-10-02 | 吉林大学 | Oil gas collection and thermal coupling shear rheology testing device during oil shale temperature-changing pyrolysis |
| CN112284930A (en) * | 2020-09-30 | 2021-01-29 | 中国科学院武汉岩土力学研究所 | Multidirectional rock shearing-seepage coupling test method with acoustic test function |
| CN113155640A (en) * | 2021-04-15 | 2021-07-23 | 清华大学 | High-temperature rock mass fracture shearing seepage heat exchange test system |
| CN113391012A (en) * | 2021-06-10 | 2021-09-14 | 中山大学 | Rock shear test device |
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