CN108106943A - A kind of triaxial compression test instrument - Google Patents
A kind of triaxial compression test instrument Download PDFInfo
- Publication number
- CN108106943A CN108106943A CN201810019523.9A CN201810019523A CN108106943A CN 108106943 A CN108106943 A CN 108106943A CN 201810019523 A CN201810019523 A CN 201810019523A CN 108106943 A CN108106943 A CN 108106943A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- confining pressure
- pressure cylinder
- interior
- compression test
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012669 compression test Methods 0.000 title claims abstract description 35
- 230000002093 peripheral effect Effects 0.000 claims abstract description 32
- 238000004826 seaming Methods 0.000 claims abstract description 23
- 238000006073 displacement reaction Methods 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims description 24
- 238000002474 experimental method Methods 0.000 description 8
- 239000000243 solution Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 239000010720 hydraulic oil Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000003921 oil Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 101100532451 Rattus norvegicus Slc22a17 gene Proteins 0.000 description 1
- 239000010727 cylinder oil Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0075—Strain-stress relations or elastic constants
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/025—Geometry of the test
- G01N2203/0256—Triaxial, i.e. the forces being applied along three normal axes of the specimen
Abstract
The invention belongs to triaxial compression test equipment technical fields, disclose a kind of triaxial compression test instrument, including：Rigid frame, confining pressure cylinder top head, peripheral cylinder pressure, interior confining pressure cylinder, confining pressure cylinder bottom seat, hydraulic cylinder, seaming chuck, pressure sensor and linear displacement transducer；Confining pressure cylinder top head is fixed on the top of rigid frame, and peripheral cylinder pressure top matching is fixed on confining pressure cylinder top head, and interior confining pressure cylinder is embedded in and in peripheral cylinder pressure, the matching of confining pressure cylinder bottom seat is fixed on interior confining pressure cylinder bottom end；Hydraulic cylinder is fixed on the lower part of rigid frame, and the piston rod top of hydraulic cylinder is fixed on the bottom of confining pressure cylinder bottom seat；Seaming chuck is arranged in peripheral cylinder pressure, and is fixed on confining pressure cylinder top head bottom；Pressure sensor is arranged between the bottom of seaming chuck and confining pressure cylinder top head；Linear displacement transducer is connected between seaming chuck and confining pressure cylinder bottom seat.The present invention provides a kind of efficient triaxial compression test instrument easy to operate.
Description
Technical field
The present invention relates to triaxial compression test equipment technical field, more particularly to a kind of triaxial compression test instrument.
Background technology
Triaxial compression test is the necessary means for studying rock-soil material mechanical characteristic, by triaxial compression test, can be obtained
The mechanical strength and deformation behaviour of rock-soil material under the conditions of to different confining pressures, and internal friction angle and cohesive strength are calculated, it draws out
The intensity curve of rock can also calculate the basic mechanicals parameter such as elasticity modulus, Poisson's ratio.And these basic parameters are for reality
Border engineering and research are all most important.
Existing triaxial compression test instrument species is various, and existing common problem is bulky, if by mutually independent
Cadre is grouped into, and need to be assembled successively when being tested.The test procedure is complicated, and progress triaxial compression test is caused to take
Length, efficiency are low.
The content of the invention
The present invention provides a kind of triaxial compression test instrument, and triaxial compression test is complicated for operation in the prior art for solution, takes
The technical issues of length, efficiency is low.
In order to solve the above technical problems, the present invention provides a kind of triaxial compression test instrument, including：Rigid frame, confining pressure
Cylinder top head, peripheral cylinder pressure, interior confining pressure cylinder, confining pressure cylinder bottom seat, hydraulic cylinder, seaming chuck, pressure sensor and straight-line displacement sensing
Device；
The confining pressure cylinder top head is fixed on the top of the rigid frame, and periphery cylinder pressure top matching is fixed on described
On confining pressure cylinder top head, the interior confining pressure cylinder is embedded in and in the peripheral cylinder pressure, the confining pressure cylinder bottom seat matching is fixed in described
Confining pressure cylinder bottom end；
The hydraulic cylinder is fixed on the lower part of the rigid frame, and the piston rod top of the hydraulic cylinder be fixed on it is described
The bottom of confining pressure cylinder bottom seat；
The seaming chuck is arranged in the peripheral cylinder pressure, and is fixed on the confining pressure cylinder top head bottom；
The pressure sensor is arranged between the bottom of the seaming chuck and the confining pressure cylinder top head；
The linear displacement transducer is connected between the seaming chuck and the confining pressure cylinder bottom seat.
Further, gas vent in the confining pressure cylinder top head is set, confining pressure oilhole is opened up in the confining pressure cylinder bottom seat.
Further, the bottom of the peripheral cylinder pressure is set towards the first radial flange in cylinder, first radial convex
Edge is resisted against on the lateral wall of the interior confining pressure cylinder；
The top of the interior confining pressure cylinder is set towards the second radial flange outside cylinder, and second radial flange is resisted against institute
On the madial wall for stating peripheral cylinder pressure.
Further, the longitudinal end of first radial flange opens up the first seal groove, first seal groove
It is interior that the first sealing ring is set to seal the gap between first radial flange and the lateral wall of the interior confining pressure cylinder；
The longitudinal end of second radial flange opens up the second seal groove, and second is set in second seal groove
Sealing ring seals the gap between the madial wall of second radial flange and the peripheral cylinder pressure.
Further, the confining pressure cylinder bottom seat includes：Base body and the axial boss for being arranged on its top；
The axial boss is in the bottom nozzle of the interior confining pressure cylinder；
The top end face of the base body is resisted against on the bottom face of the interior confining pressure cylinder.
Further, the 3rd seal groove is opened up on the side wall of the axial boss, is set in the 3rd seal groove
3rd sealing ring seals the gap between the axial boss and the madial wall of the interior confining pressure cylinder.
Further, the 3rd seal groove includes：Upper seal groove and lower seal slot, the upper seal groove and
Sealing ring is respectively provided in the lower seal slot.
Further, sample stage is set in the axial boss, and the sample stage is oppositely arranged with the seaming chuck.
Further, drawing handle is set on the outer wall of the interior confining pressure cylinder.
Further, the bottom of the peripheral cylinder pressure sets handle position limiting structure；
The handle position limiting structure includes：Positive stop hook；
The positive stop hook is arranged on the bottom of the peripheral cylinder pressure；
It is opened up on the positive stop hook and the drawing matched card slot of handle.
The one or more technical solutions provided in the embodiment of the present application, have at least the following technical effects or advantages：
The triaxial compression test instrument provided in the embodiment of the present application by nested peripheral cylinder pressure and interior confining pressure cylinder and encloses
Cylinder pressure upper cover and confining pressure cylinder bottom seat formed can axial stretching confining pressure cavity configuration, on the one hand, so that the structure of confining pressure chamber it is whole compared with
It is small, it can adjust according to actual needs；On the other hand, the design of extensible enclosing Press cylinder device can coordinate hydraulic cylinder to realize axial apply
Power, it is easy to operate efficient.Then, by pressure sensor, seaming chuck can monitor in real time and feedback control axial force distribution；Straight line
Displacement sensor realizes the axial strain monitoring of sample, whole efficiently convenient.The volume of more existing triaxial compression test instrument is significantly
Reduce, save space.Meanwhile from hommization angle, inside and outside confining pressure cylinder combines the retractable structure to be formed, effectively avoids
Numerous and diverse process of pressure indoor is dismantled in experiment preparation repeatedly, test efficiency is improved, alleviates do to a certain extent
The manual labor of experiment.
Description of the drawings
Fig. 1 is the structure diagram of triaxial compression test instrument provided by the invention；
Fig. 2 is the fit structure schematic diagram of peripheral cylinder pressure provided by the invention and interior confining pressure cylinder；
Fig. 3 is sample axial force distribution structure diagram provided by the invention.
Specific embodiment
The embodiment of the present application solves triaxial compression test in the prior art and operates by providing a kind of triaxial compression test instrument
The technical issues of complexity, time-consuming, and efficiency is low.
In order to better understand the above technical scheme, in conjunction with appended figures and specific embodiments to upper
It states technical solution to be described in detail, it should be understood that the specific features in the embodiment of the present invention and embodiment are to the application skill
The detailed description of art scheme rather than the restriction to technical scheme, in the case where there is no conflict, the embodiment of the present application
And the technical characteristic in embodiment can be mutually combined.
Referring to Fig. 1, Fig. 2 and Fig. 3, a kind of triaxial compression test instrument, including：Rigid frame 23, confining pressure cylinder top head 3, periphery
Cylinder pressure 4, interior confining pressure cylinder 5, confining pressure cylinder bottom seat 18, hydraulic cylinder 19, seaming chuck 13, pressure sensor 12 and linear displacement transducer
15。
Wherein, the confining pressure cylinder top head 3 is fixed on the top of the rigid frame 23, the top of the periphery cylinder pressure 4
With being fixed on the confining pressure cylinder top head 3, the interior confining pressure cylinder 5 be embedded in in the peripheral cylinder pressure 4, the confining pressure cylinder bottom seat 18
Matching is fixed on the bottom of the interior confining pressure cylinder 5；The hydraulic cylinder 19 is fixed on the lower part of the rigid frame 23, and the liquid
The top of the piston rod 20 of cylinder pressure 19 is fixed on the bottom of the confining pressure cylinder bottom seat 18.So as to form telescopic confining pressure cylinder knot
Structure substantially reduces the volume of confining pressure structure, meanwhile, from hommization angle, inside and outside confining pressure cylinder combines the scalable knot to be formed
Structure effectively prevents dismantling numerous and diverse process of pressure indoor repeatedly in experiment preparation, test efficiency is improved, to a certain degree
On alleviate the manual labor done experiment.
That is, by hydraulic cylinder 19 the confining pressure cylinder bottom seat 18 is promoted to move up application axial force, and in the process, institute
Stating interior confining pressure cylinder 5 follows the confining pressure cylinder bottom seat 18 to be axially moved, so as to ensure that the sealing state of confining pressure chamber is stablized.Compared with existing
Some triaxial test structures, force application structure and mode are more easy to be reliable.
In general, one slab structure part is set in the bottom of the confining pressure cylinder bottom seat 18, and passes through the slab structure
Part connects the piston rod 20 of the hydraulic cylinder 19.Axial force can be carried by slab structure part, and uniformly disperse and enclosed to described
Cylinder pressure pedestal 18, realization are stablized, uniform axial force, ensure the reliability of axial force distribution.
Specifically, the seaming chuck 12 is arranged in the peripheral cylinder pressure 4, and is fixed on the confining pressure cylinder top head 3
Bottom；The pressure sensor 12 is arranged between the bottom of the seaming chuck 13 and the confining pressure cylinder top head 3；So as to form axis
To pressure detection structure, convenient for the axial force distribution of hydraulic cylinder 19.
The linear displacement transducer 15 is connected between the seaming chuck 13 and the confining pressure cylinder bottom seat 18.For
Detect the axial deformation of sample 14.
Wherein confining pressure cylinder top head 3 is fixed on 23 top of rigid frame by fastening bolt 1, promotes the structure of confining pressure cylinder
Intensity.
In general, linear variable difference transformer LVDT can be used by the axis of sample 14 in the linear displacement transducer 15
Electric signal output is converted into deformation.
In general, force basis of the rigid frame 23 as triaxial test, possesses enough rigidity and structural strength.
For the ease of forming confining pressure environment in interior confining pressure cylinder 5 and peripheral cylinder pressure 4, exhaust is set in the confining pressure cylinder top head 3
Hole 2, for being vented；Confining pressure oilhole 17 is opened up in the confining pressure cylinder bottom seat 18, for external oil pump, convenient for the injection of confining pressure oil.
Further, the bottom of the peripheral cylinder pressure 4 is set towards the first radial flange in cylinder, first radial convex
Edge is resisted against on the lateral wall of the interior confining pressure cylinder 5；The top of the interior confining pressure cylinder 5 is set towards the second radial convex outside cylinder
Edge, second radial flange are resisted against on the madial wall of the peripheral cylinder pressure 4.So as to form axial limit structure, limitation is enclosed
Press the height of chamber；Sealing structure is also formd to a certain extent simultaneously.
In general, the longitudinal end of first radial flange opens up the first seal groove, first seal groove
It is interior that the first sealing ring 7 is set to seal the gap between the lateral wall of first radial flange and the interior confining pressure cylinder 5.
The longitudinal end of second radial flange opens up the second seal groove, and second is set in second seal groove
Sealing ring 6 seals the gap between the madial wall of second radial flange and the peripheral cylinder pressure 4, further lift-off seal effect
Fruit.
The confining pressure cylinder bottom seat 18 includes：Base body and the axial boss for being arranged on its top；The axial boss
In the bottom nozzle of the interior confining pressure cylinder 5, the bottom nozzle of the interior confining pressure cylinder 5 is blocked.
The top end face of the base body is resisted against on the bottom face of the interior confining pressure cylinder 5, the lower scalable confining pressure cylinder of sealing
Structure.
Further, the 3rd seal groove is opened up on the side wall of the axial boss, is set in the 3rd seal groove
3rd sealing ring 10 seals the gap between the madial wall of the axial boss and the interior confining pressure cylinder 5.
In general, the 3rd seal groove includes：Upper seal groove and lower seal slot, the upper seal groove and
Sealing ring is respectively provided in the lower seal slot；That is, two circle ring structure up and down is formed.
Further, sample stage is set in the axial boss, and the sample stage is opposite with the seaming chuck 13 to be set
It puts, sample 14 is arranged between.It in general, can also be by being socketed rubber sleeve outside sample 14, and in the middle part of rubber sleeve
Hoop strain meter 16 is set, for measuring the hoop strain of sample 14.
Drawing handle 11 is set for the ease of the telescopic adjustment of confining pressure cylinder, on the outer wall of the interior confining pressure cylinder 5；So as to pull
Or confining pressure cylinder 5 moves axially in promoting.
The bottom of the periphery cylinder pressure 4 sets handle position limiting structure；The handle position limiting structure includes：Positive stop hook 8；It is described
Positive stop hook 8 is arranged on the bottom of the peripheral cylinder pressure 4；It is opened up on the positive stop hook 8 and the drawing 11 matched card slot of handle.
In general, positive stop hook 8 and peripheral 4 bottom of cylinder pressure are pivotally connected by shaft 9, consequently facilitating limitation drawing hand
Handle 11 or release drawing handle 11.
When pulling arrival 8 top of positive stop hook of handle 11, rotary spacing hook 8 withstands drawing handle 11 from below, and passes through
Card slot limits it and rocks, and ensures /V reliability.
Below in conjunction with the accompanying drawings be described in detail said structure working condition, with using rock-soil material conventional triaxial compression test as
Example explanation.
Include the following steps：
A. by standard cylindrical sample, generally diameter 50mm, height 100mm is sealed with rubber sleeve, is positioned over
Between pressure head 13 and confining pressure cylinder bottom seat 18, and ensure in pressure sensor 12, seaming chuck 13, sample 14, confining pressure cylinder bottom seat 18
Mandrel line overlaps.
B., axial direction LVDT is installed between seaming chuck 13 and confining pressure cylinder bottom seat 18, for measuring sample in loading procedure
Axial deformation；The circumferential strain gauge 16 of middle part installation on the outside of the rubber sleeve of sealing sample 14, for measuring the ring of sample 14
To deformation.
C. sample is after installation is complete, rotating shaft 9, and positive stop hook 8 is made to leave drawing handle 11, promotes in drawing handle 11 makes
Confining pressure cylinder 5 slowly declines.Interior confining pressure cylinder 5 is contacted by high performance second sealing ring 6 with the inner wall of peripheral cylinder pressure 4, and lower part leads to
The 3rd sealing ring 10 crossed on confining pressure cylinder bottom seat 18 is in close contact.Because interior confining pressure cylinder 5 is required in each on-test and end
Descending operation is carried out, second sealing ring 6 follows interior confining pressure cylinder 5 to move up and down, and must have good wear-resisting property, and
Good airproof performance avoids hydraulic oil from entering the confined space that inside and outside confining pressure cylinder is formed as far as possible.3rd sealing ring 10 plays sealing
Effect, avoids the hydraulic oil in confining pressure cylinder excessive.Peripheral 4 bottom of cylinder pressure and the outer wall of interior confining pressure cylinder 5 are connect by the first sealing ring 7
It touches, first sealing ring 7 plays the role of confining pressure cylinder 5 in support and moves up and down, and prevents inside and outside confining pressure cylinder from contacting directly generation
Friction, can play certain protective effect.
D. the interior stretching of confining pressure cylinder 5 is in close contact with confining pressure cylinder bottom seat 18, and sample 14 is completely sealed in confining pressure cylinder, this
When, confining pressure cylinder interior forms confined space.Confining pressure oilhole 17 and gas vent 2 are opened simultaneously, it is fast by the oil pump outside tester
Speed is oil-filled into confining pressure cylinder, when gas vent 17 has hydraulic oil spilling, illustrates that hydraulic oil has been filled in confining pressure cylinder, closes exhaust in time
Oil-filled operation is completed in hole 17.
E. the drain into confining pressure cylinder is continued by the servo-control system outside tester, applies confining pressure to presetting
Value.
F. after confined pressure steady, loading cylinder oil outlet 21 and loading cylinder fuel feed hole 22 are opened simultaneously, outside tester
Servo-control system drain into hydraulic loaded cylinder, piston boit 20 is made gradually to move up, apply axis pressure.
G. after sample destruction, servo-control system first unloads axis pressure by way of imbibition, then unloads confining pressure, confining pressure
After the completion of discharge degree in cylinder, the oil pump outside gas vent 2, confining pressure oilhole 17 and tester is opened, is extracted in confining pressure cylinder
Hydraulic oil.
H. after the hydraulic oil in confining pressure cylinder is completely exhausted out, lifting handle 11 makes interior confining pressure cylinder 5 bounce back in peripheral cylinder pressure 4
Portion, the limiting device 8 of 4 bottom of rotating peripheral cylinder pressure make the handle 11 of interior confining pressure cylinder 5 be fixed in 8 groove of limiting device, play
Fixation.
I. after the completion of above-mentioned steps, sample is taken out, experiment is completed.
Triaxial compression test instrument disclosed by the invention by way of the combination of both inside and outside confining pressure cylinders, realizes confining pressure cylinder
Retractable, and confining pressure cylinder top head and pedestal are individually fixed in rigid frame and hydraulic loaded cylinder top, it is more existing
Triaxial compression test instrument volume greatly reduces, and saves space.Meanwhile from hommization angle, inside and outside confining pressure cylinder combines to be formed
Retractable structure, effectively prevent dismantling numerous and diverse process of pressure indoor repeatedly in experiment preparation, improve test efficiency,
The manual labor done and tested is alleviated to a certain extent.
The one or more technical solutions provided in the embodiment of the present application, have at least the following technical effects or advantages：
The triaxial compression test instrument provided in the embodiment of the present application by nested peripheral cylinder pressure and interior confining pressure cylinder and encloses
Cylinder pressure upper cover and confining pressure cylinder bottom seat formed can axial stretching confining pressure cavity configuration, on the one hand, so that the structure of confining pressure chamber it is whole compared with
It is small, it can adjust according to actual needs；On the other hand, the design of extensible enclosing Press cylinder device can coordinate hydraulic cylinder to realize axial apply
Power, it is easy to operate efficient.Then, by pressure sensor, seaming chuck can monitor in real time and feedback control axial force distribution；Straight line
Displacement sensor realizes the axial strain monitoring of sample, whole efficiently convenient.The volume of more existing triaxial compression test instrument is significantly
Reduce, save space.Meanwhile from hommization angle, inside and outside confining pressure cylinder combines the retractable structure to be formed, effectively avoids
Numerous and diverse process of pressure indoor is dismantled in experiment preparation repeatedly, test efficiency is improved, alleviates do to a certain extent
The manual labor of experiment.
It should be noted last that more than specific embodiment is merely illustrative of the technical solution of the present invention and unrestricted,
Although the present invention is described in detail with reference to example, it will be understood by those of ordinary skill in the art that, it can be to the present invention
Technical solution be modified or replaced equivalently, without departing from the spirit and scope of technical solution of the present invention, should all cover
Among scope of the presently claimed invention.
Claims (10)
1. a kind of triaxial compression test instrument, which is characterized in that including：Rigid frame, confining pressure cylinder top head, peripheral cylinder pressure, interior confining pressure
Cylinder, confining pressure cylinder bottom seat, hydraulic cylinder, seaming chuck, pressure sensor and linear displacement transducer；
The confining pressure cylinder top head is fixed on the top of the rigid frame, and the top matching of the periphery cylinder pressure is fixed on described enclose
On cylinder pressure on lid, the interior confining pressure cylinder is embedded in and in the peripheral cylinder pressure, the confining pressure cylinder bottom seat matching is fixed in described encloses
The bottom of cylinder pressure；
The hydraulic cylinder is fixed on the lower part of the rigid frame, and the piston rod top of the hydraulic cylinder is fixed on the confining pressure
The bottom of cylinder bottom seat；
The seaming chuck is arranged in the peripheral cylinder pressure, and is fixed on the confining pressure cylinder top head bottom；
The pressure sensor is arranged between the bottom of the seaming chuck and the confining pressure cylinder top head；
The linear displacement transducer is connected between the seaming chuck and the confining pressure cylinder bottom seat.
2. triaxial compression test instrument as described in claim 1, which is characterized in that gas vent is set in the confining pressure cylinder top head,
Confining pressure oilhole is opened up in the confining pressure cylinder bottom seat.
3. triaxial compression test instrument as described in claim 1, which is characterized in that the bottom of the periphery cylinder pressure is set towards cylinder
The first interior radial flange, first radial flange are resisted against on the lateral wall of the interior confining pressure cylinder；
The top of the interior confining pressure cylinder is set towards the second radial flange outside cylinder, and second radial flange is resisted against described outer
On the madial wall of confining pressure cylinder.
4. triaxial compression test instrument as claimed in claim 3, which is characterized in that the longitudinal end of first radial flange is opened
The first sealing ring is set to seal first radial flange if the first seal groove, in first seal groove interior to enclose with described
Gap between the lateral wall of cylinder pressure；
The longitudinal end of second radial flange opens up the second seal groove, and the second sealing is set in second seal groove
Circle seals the gap between the madial wall of second radial flange and the peripheral cylinder pressure.
5. triaxial compression test instrument as described in claim 1, which is characterized in that the confining pressure cylinder bottom seat includes：Base body
And it is arranged on the axial boss on its top；
The axial boss is in the bottom nozzle of the interior confining pressure cylinder；
The top end face of the base body is resisted against on the bottom face of the interior confining pressure cylinder.
6. triaxial compression test instrument as claimed in claim 5, which is characterized in that open up the 3rd on the side wall of the axial boss
Seal groove, the 3rd seal groove is interior to set the 3rd sealing ring to seal the axial boss and the inside of the interior confining pressure cylinder
Gap between wall.
7. triaxial compression test instrument as claimed in claim 6, which is characterized in that the 3rd seal groove includes：Upper sealing
Sealing ring is respectively provided in ring recess and lower seal slot, the upper seal groove and the lower seal slot.
8. triaxial compression test instrument as claimed in claim 5, which is characterized in that sample stage is set in the axial boss,
The sample stage is oppositely arranged with the seaming chuck.
9. such as claim 1~8 any one of them triaxial compression test instrument, which is characterized in that the outer wall of the interior confining pressure cylinder
It is upper that drawing handle is set.
10. triaxial compression test instrument as claimed in claim 9, which is characterized in that the bottom of the periphery cylinder pressure sets handle
Position limiting structure；
The handle position limiting structure includes：Positive stop hook；
The positive stop hook is arranged on the bottom of the peripheral cylinder pressure；
It is opened up on the positive stop hook and the drawing matched card slot of handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810019523.9A CN108106943A (en) | 2018-01-09 | 2018-01-09 | A kind of triaxial compression test instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810019523.9A CN108106943A (en) | 2018-01-09 | 2018-01-09 | A kind of triaxial compression test instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108106943A true CN108106943A (en) | 2018-06-01 |
Family
ID=62218890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810019523.9A Pending CN108106943A (en) | 2018-01-09 | 2018-01-09 | A kind of triaxial compression test instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108106943A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112146993A (en) * | 2020-10-27 | 2020-12-29 | 中国科学院地质与地球物理研究所 | Rock mechanics triaxial testing machine |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0424049U (en) * | 1990-06-21 | 1992-02-27 | ||
| US5435187A (en) * | 1994-06-23 | 1995-07-25 | Exxon Production Research Company | End-cap-to-piston coupling for triaxial test apparatus |
| JPH09209917A (en) * | 1996-02-01 | 1997-08-12 | Daiichi Denki Kk | Hydraulic piston device of variable capacity |
| CN101135622A (en) * | 2007-10-10 | 2008-03-05 | 中国科学院武汉岩土力学研究所 | Rock double linkage three axis rheogeniometer |
| CN101169356A (en) * | 2007-11-15 | 2008-04-30 | 西安理工大学 | Triaxial independent loading pressure chamber structure true triaxial apparatus |
| KR20120066464A (en) * | 2010-12-14 | 2012-06-22 | 연세대학교 산학협력단 | Tri-axial compression tester and chamber of the tri-axial compression tester |
| CN103175728A (en) * | 2013-02-07 | 2013-06-26 | 西安理工大学 | Dynamic true-triaxial apparatus for soil |
| CN103412092A (en) * | 2013-08-26 | 2013-11-27 | 重庆大学 | Triaxial multiple coal and gas outburst test device |
| CN104535423A (en) * | 2014-12-18 | 2015-04-22 | 中国水利水电科学研究院 | Saturated and unsaturated volume change measurement device for dynamic and static triaxial testing machine and control device |
| CN104715668A (en) * | 2014-12-10 | 2015-06-17 | 长沙理工大学 | Geotechnical triaxial compression experiment teaching system |
| CN205067246U (en) * | 2015-11-06 | 2016-03-02 | 三峡大学 | Triaxial test's confined pressure room structure |
| CN205656082U (en) * | 2016-01-22 | 2016-10-19 | 湘潭大学 | Geotechnique triaxial shear test equipment based on servo testing machine of MTS electricity liquid |
| CN107421821A (en) * | 2017-07-31 | 2017-12-01 | 安徽理工大学 | A kind of rock is turned round and cuts pressure comprehensive experimental device |
| CN207850832U (en) * | 2018-01-09 | 2018-09-11 | 中国科学院武汉岩土力学研究所 | A kind of triaxial compression test instrument |
-
2018
- 2018-01-09 CN CN201810019523.9A patent/CN108106943A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0424049U (en) * | 1990-06-21 | 1992-02-27 | ||
| US5435187A (en) * | 1994-06-23 | 1995-07-25 | Exxon Production Research Company | End-cap-to-piston coupling for triaxial test apparatus |
| JPH09209917A (en) * | 1996-02-01 | 1997-08-12 | Daiichi Denki Kk | Hydraulic piston device of variable capacity |
| CN101135622A (en) * | 2007-10-10 | 2008-03-05 | 中国科学院武汉岩土力学研究所 | Rock double linkage three axis rheogeniometer |
| CN101169356A (en) * | 2007-11-15 | 2008-04-30 | 西安理工大学 | Triaxial independent loading pressure chamber structure true triaxial apparatus |
| KR20120066464A (en) * | 2010-12-14 | 2012-06-22 | 연세대학교 산학협력단 | Tri-axial compression tester and chamber of the tri-axial compression tester |
| CN103175728A (en) * | 2013-02-07 | 2013-06-26 | 西安理工大学 | Dynamic true-triaxial apparatus for soil |
| CN103412092A (en) * | 2013-08-26 | 2013-11-27 | 重庆大学 | Triaxial multiple coal and gas outburst test device |
| CN104715668A (en) * | 2014-12-10 | 2015-06-17 | 长沙理工大学 | Geotechnical triaxial compression experiment teaching system |
| CN104535423A (en) * | 2014-12-18 | 2015-04-22 | 中国水利水电科学研究院 | Saturated and unsaturated volume change measurement device for dynamic and static triaxial testing machine and control device |
| CN205067246U (en) * | 2015-11-06 | 2016-03-02 | 三峡大学 | Triaxial test's confined pressure room structure |
| CN205656082U (en) * | 2016-01-22 | 2016-10-19 | 湘潭大学 | Geotechnique triaxial shear test equipment based on servo testing machine of MTS electricity liquid |
| CN107421821A (en) * | 2017-07-31 | 2017-12-01 | 安徽理工大学 | A kind of rock is turned round and cuts pressure comprehensive experimental device |
| CN207850832U (en) * | 2018-01-09 | 2018-09-11 | 中国科学院武汉岩土力学研究所 | A kind of triaxial compression test instrument |
Non-Patent Citations (2)
| Title |
|---|
| 邵生俊等: "一种伺服液压加载双室三轴仪的研制与开发", 岩土力学, no. 1, 10 June 2015 (2015-06-10) * |
| 陈世杰等: "与医用CT配合使用的冻土三轴仪的研制与应用", 岩土力学, no. 2, 10 November 2017 (2017-11-10) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112146993A (en) * | 2020-10-27 | 2020-12-29 | 中国科学院地质与地球物理研究所 | Rock mechanics triaxial testing machine |
| US11815496B2 (en) | 2020-10-27 | 2023-11-14 | Institute Of Geology And Geophysics, Chinese Academy Of Sciences | Rock mechanics triaxial testing machine has shaft pressure driving piece and lifting mechanism driving inner pressure chamber to lift |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207850832U (en) | A kind of triaxial compression test instrument | |
| CN206920243U (en) | A kind of uniaxial compression test device | |
| US11320352B2 (en) | Rapid rotation opening type high-pressure rock triaxial pressure chamber with loading structure | |
| CN102818726A (en) | Stress path full-automatic hydraulic servo control type rigid-flexible multifunctional triaxial apparatus | |
| CN108020470A (en) | A kind of rock triaxial pressure machine for being used to simulate super-pressure and high temperature geological conditions | |
| CN103134721B (en) | Dynamic triaxial testing machine servo-driven by electric cylinder | |
| WO2022228537A1 (en) | Medium strain rate testing device capable of controlling and loading axial pressure and confining pressure, and method | |
| CN108106943A (en) | A kind of triaxial compression test instrument | |
| CN105699202B (en) | A kind of hydraulic device measuring Mechanics Parameters of Rock Mass | |
| CN106525598A (en) | Simple triaxial compression test instrument for rock | |
| CN109708949A (en) | The equivalent effective stress coefficient testing device of monolete rock and test method | |
| CN107389457A (en) | Rock mechanics experiment machine based on carbon fiber balancing gate pit | |
| CN104655441B (en) | A kind of tunnel model test stand | |
| CN105136583B (en) | A kind of moulded coal manufacturing process hole crack evolution experimental rig | |
| CN106989974A (en) | One kind compacting diemaker | |
| CN209123872U (en) | The device of dynamic monitoring deformation index under a kind of high-temperature and high-pressure conditions in reaction kettle | |
| CN102798371B (en) | Rock volume deformation measuring sensor and rock test-piece volume deformation measuring method | |
| CN206721945U (en) | Portable ground loading test instrument | |
| CN206146750U (en) | Explosion -proof piece high -voltage insulation test device | |
| CN210243382U (en) | Vacuum-preloading combined test device for soil sample in triaxial state | |
| CN209707047U (en) | With disc spring bit shift compensation and double ground simulation test devices for testing envelope function | |
| CN114778401A (en) | Device and method for measuring permeability of coal rock under condition of simulating rock burst | |
| CN206710171U (en) | One kind compacting diemaker | |
| CN103983518B (en) | The suction mechanic property test method of concrete substrate under wind action | |
| CN207981097U (en) | Accurate device for measuring force in a kind of autoclave |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |