CN205656082U - Geotechnique triaxial shear test equipment based on servo testing machine of MTS electricity liquid - Google Patents
Geotechnique triaxial shear test equipment based on servo testing machine of MTS electricity liquid Download PDFInfo
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- CN205656082U CN205656082U CN201620085374.2U CN201620085374U CN205656082U CN 205656082 U CN205656082 U CN 205656082U CN 201620085374 U CN201620085374 U CN 201620085374U CN 205656082 U CN205656082 U CN 205656082U
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- testing machine
- pressure chamber
- mts
- servo testing
- hydraulic servo
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Abstract
The utility model discloses a geotechnique triaxial shear test equipment based on servo testing machine of MTS electricity liquid, geotechnological triaxial shear test device is equipped with including the servo testing machine of MTS electricity liquid, at the servo testing machine upper grip of MTS electricity liquid of the servo testing machine of MTS electricity liquid, under the servo testing machine of MTS electricity liquid on the chuck, the utility model is provided with technical effects as following, firstly, the servo testing machine of make full use of MTS electricity liquid provides accurate stable power source, through last dead lever, the perpendicular pressurization of sample is realized to the axial dowel steel, utilize the inlet to impress liquid cooperation pressure volume control ware and realize the pressurization and the steady voltage of sample confined pressure and back pressure, it is final under the close cooperation of each part, can carry out the back pressure saturation of sample, concrete the loading uninstallation endless isotropic, anisotropic, K0 concreties, the creep is concretied, sound triaxial shear test, and the experimentation is whole in the software control, simple operation, and the automation is high, suitable research is used widely. Secondly, simple structure, the compactness, occupation space is little, and the equipment is convenient, and is with low costs, and measurement accuracy is high, and stability is good.
Description
Technical field
This utility model relates to geotechnical study field, tries based on MTS electro-hydraulic servo in particular to one
Test the geotechnical centrifuge model equipment of machine.
Background technology
In recent years, along with the fast development of China's engineering construction, particularly Geotechnical Engineering field, superelevation limit
The supporting on slope, the excavation of deep basal pit, the research under the complex engineering geological conditions such as geological disaster research more comes
The most deep, the requirement to laboratory soil test is more and more higher.Soil be a kind of sufficiently complex natural material and
Being in three-dimensional stress state, in the case of many, the experiment under Simple stress condition can not reflect work completely more
The stress state of soil in Cheng Shiji.Geotechnical centrifuge model system is that one meets modern Geotechnical Engineering field,
The Novel experimental equipment of the mechanical characteristic of research soil, it more fully can simulate soil at various complex working conditions by ratio
Under mechanical property, be the important evidence of scientific research and engineering design.In order to fully realize complex stress
The mechanical property of soil under state, therefore carries out indoor geotechnical centrifuge model and seems particularly significant.
1. conventional earthwork triaxial apparatus
Earthwork triaxial apparatus is the important tool of the mechanical property of research soil, scientific research institutions and the reality of universities and colleges
Test room and gradually add earthwork triaxial apparatus.The applied range of earthwork triaxial apparatus, can measure the intensity of soil
Parameter, ess-strain parameter, dissipation coefficient, static lateral pressure coefficient and the infiltration coefficient etc. of soil, be suitable for
In various great soil groups, such as undisturbed soil, manipulated soil and gravel etc..Earthwork triaxial apparatus can be on-the-spot with model engineering
Stress state, apply principal stress and load path, and for there being structural soil, can be more truly
The ess-strain feature of reflection soil.Conventional earthwork triaxial apparatus is by pressure chamber, pressure volume controller and axially
Charger forms.Test soil sample is placed in pressure chamber, by pressure volume controller regulation pressure after water filling
The confined pressure of power indoor and back-pressure, axial loading device is typically provided axial force by motor, passes through test specimen
Top depression bar applies axial force to sample.
Defect: domestic earthwork triaxial apparatus axial loading device is generally motor.It provides axial force source
Being not sufficiently stable and loading tonnage is less, used by equipment, sensor accuracy is not high enough, the time durability of equipment
It is poor, needed for most basic triaxial tests can only be met.And although import equipment precision is higher, but institute
The axial force source being provided that is single and tonnage is relatively low, import equipment and parts price costliness maintenance difficult, can
Expansion is poor.
2.MTS electro-hydraulic servo testing machine
Material Testing Machine be under various conditions and environment measure metal material, the mechanical performance of nonmetallic materials,
The fine measuring instrument of processing performance.The laboratory of scientific research institutions and universities and colleges is exploring new material, new
During technique, new technique, Material Testing Machine is a kind of indispensable important instrument.MTS is electro-hydraulic
Servo testing machine is closed loop servo-control system, and servosystem executive module precision is high, good reliability, anti-
Interference performance is strong, fast response time, can Control release process automatically and accurately, easy to operate efficiently.
MTS electro-hydraulic servo testing machine while high accuracy loading force source is provided, can realize etc. speed load, etc.
Rate deformation, etc. speed displacement etc. control process, and power, deformation, displacement can be realized in once experiment
Three stage control, between each control, smooth conversion, is preferable loading force origin system.
Defect: MTS electro-hydraulic servo testing machine the most only limits the use of in metal material and some non-metal solid material
The physical mechanics single shaft performance test of material, and the loose material such as ground and bituminous concrete has significantly
Pressure-sensitive, often needs to consider triaxial compressions stress-strain property.Therefore, MTS electro-hydraulic servo testing machine will
Can not directly carry out triaxial compression test, this greatly reduces opening up of MTS electro-hydraulic servo testing machine undoubtedly
Malleability.
Utility model content
The purpose of this utility model is to provide a kind of geotechnological triaxial machining based on MTS electro-hydraulic servo testing machine
Testing equipment.
The technical solution of the utility model is, a kind of geotechnique three axle based on MTS electro-hydraulic servo testing machine is cut
Cut testing equipment, including MTS electro-hydraulic servo testing machine, at the MTS of MTS electro-hydraulic servo testing machine
Electro-hydraulic servo testing machine upper grip, equipped with geotechnique's triaxial machining examination on MTS electro-hydraulic servo testing machine lower chuck
Experiment device；Described geotechnological triaxial shear test device includes testing pressure chamber, described test pressure chamber
Including safety glass cover, it is respectively provided with pressure chamber upper end cover, pressure chamber bottom end cover at safety glass cover two ends,
Pressure chamber bottom end cover is fixed bolt by bottom end cover and is contained in pressure chamber base；Upper fixing bar is by fixing spiral shell
Cap is connected with transmitting axle force bar, and dowel steel set is sealingly fastened in pressure chamber upper end cover center by sealing nut,
Transmitting axle force bar is connected, under water through dowel steel set and pressure chamber top cover with pressure chamber load transducer under water
Load transducer lower end is hemispherical, and the upper end of polishing head is hemisphere groove type, under water load transducer half
Hemispheric lower end withstands in the hemisphere groove of polishing head upper end, on pressure chamber upper end cover equipped with bleed screw and
Axially displacement acquisition bar, exists equipped with displacement transducer, the detection crown of displacement transducer at transmitting axle force bar
Axially on displacement acquisition bar；Equipped with specimen mount in pressure chamber base, have confined pressure in pressure chamber base
Inlet, pressure chamber base inlet and back-pressure inlet, pressure chamber base inlet is opened at the bottom of sample
Above Zuo, equipped with tube for transfusion on back-pressure inlet, tube for transfusion is connected on polishing head, is opened on polishing head
Bottom surface；Confined pressure fixing fabric structure device is connected to confined pressure inlet, at pressure chamber base inlet equipped with Pore Pressure
Power senses, and lower back-pressure fixing fabric structure device is connected on pressure chamber base inlet, upper back-pressure fixing fabric structure device
It is connected on back-pressure inlet；Pressure chamber base is connected solid with lower firm banking by the firm bolt of bottom end cover
Fixed, in lower firm banking bottom surface equipped with lower fixing bar；Upper fixing bar is contained on MTS electro-hydraulic servo testing machine
Chuck, lower fixing bar is contained on MTS electro-hydraulic servo testing machine lower chuck.
The upper end of fixed bar is cylindrical, and lower end is hemispherical, and transmitting axle force bar upper end is hemisphere
Connected in star shape, the hemispheric lower end of upper fixing bar passes through hold-doun nut fixed cover in transmitting axle force bar upper end
In hemispherical groove, it is ensured that axial alignment pressurizes.
It is circularly and evenly distributed equipped with vertical supporting bar, support bar between upper end cover, pressure chamber bottom end cover.
Described specimen mount is fixed on pressure chamber base middle position.
It is provided with water resisting protection tank outside MTS electro-hydraulic servo testing machine lower chuck.
Opening circular hole in the middle of described water resisting protection tank, MTS electro-hydraulic servo testing machine lower chuck is from water resisting protection
Open circular hole in the middle of tank to pass.
Described based on MTS electro-hydraulic servo testing machine geotechnological triaxial shear test equipment is soft by controlling
Part controls, and controls software and is write by Delphi language, is divided into engineering management module, test method to select mould
Block, instrument state display module, test parameters display module, test objective setting module, startup control
Module, trial curve display module, test data logging modle.
This utility model has the following technical effect that, one is to make full use of MTS electro-hydraulic servo testing machine to carry
For precise and stable power source, realized the press perpendicular of sample by upper fixing bar, transmitting axle force bar, utilize
Inlet press-in liquid-mixing resultant pressure fixing fabric structure device realizes sample confined pressure and the pressurization of back-pressure and voltage stabilizing,
Eventually under the close fit of each parts, the back-pressure that can carry out sample is saturated, consolidation loading one unloading circulation
Isotropism, anisotropy, K0Consolidation, creep consolidation, sound triaxial machining are tested, and experimentation
All being controlled by software, easy and simple to handle, automaticity is high, is suitable for research promotion and uses.Two is knot
Structure is simple, compact, takes up room little, easy to assembly, low cost, and certainty of measurement is high, good stability.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the front view of this utility model geotechnique's triaxial shear test device.
Fig. 3 is the cross section view of this utility model geotechnique's triaxial shear test device.
Detailed description of the invention
As shown in Figure 1, Figure 2, Fig. 3, a kind of geotechnological triaxial shear test based on MTS electro-hydraulic servo testing machine
Equipment, including MTS electro-hydraulic servo testing machine 1, electro-hydraulic at the MTS of MTS electro-hydraulic servo testing machine 1
Servo testing machine upper grip 1.1, equipped with geotechnique's triaxial machining on MTS electro-hydraulic servo testing machine lower chuck 1.2
Assay device；Described geotechnological triaxial shear test device includes testing pressure chamber, described test pressure
Room includes safety glass cover 11, is respectively provided with pressure chamber upper end cover 10, pressure at safety glass cover 11 two ends
Power room bottom end cover 19, pressure chamber bottom end cover 19 is fixed bolt 25 by bottom end cover and is contained in pressure chamber base 20
On；Upper fixing bar 2 is connected with transmitting axle force bar 4 by hold-doun nut 3, and dowel steel set 7 is by sealing
Nut 8 is sealingly fastened in pressure chamber upper end cover 10 center, and transmitting axle force bar 4 is through dowel steel set 7 and pressure
Power ceiling lid 10 is connected with pressure chamber load transducer 14 under water, and load transducer 14 lower end is half under water
Spherical, the upper end of polishing head 15 is hemisphere groove type, under water the hemispheric lower end top of load transducer 14
In the hemisphere groove of polishing head 15 upper end, equipped with bleed screw 9 and axle on pressure chamber upper end cover 10
To displacement acquisition bar 6, at transmitting axle force bar 4 equipped with displacement transducer 5, the detection head of displacement transducer 5
Withstand on axial displacement acquisition bar 6；Equipped with specimen mount 18 in pressure chamber base 20, at the bottom of pressure chamber
Seat 20 has confined pressure inlet 22, pressure chamber base inlet 23 and back-pressure inlet 21, at the bottom of pressure chamber
Seat inlet 23 is opened on above specimen mount 18, equipped with tube for transfusion 16 on back-pressure inlet 21, defeated
Liquid pipe 16 is connected on polishing head 15, is opened on polishing head 15 bottom surface；Confined pressure fixing fabric structure device 1.6 connects
At confined pressure inlet 22, sense 27 at pressure chamber base inlet 23 equipped with pore pressure, lower back-pressure body
Plot controller 1.4 is connected on pressure chamber base inlet 23, and upper back-pressure fixing fabric structure device 1.5 is connected to
On back-pressure inlet 21, back-pressure fixing fabric structure device (1.5) is connected on back-pressure inlet (21)；On；Pressure
Power room base 20 is connected fixing, at the lower fixing end with lower firm banking 24 by the firm bolt of bottom end cover 25
Seat 24 bottom surfaces are equipped with lower fixing bar 26；Upper fixing bar 2 is contained in MTS electro-hydraulic servo testing machine upper grip 1.1,
The most fixing bar 26 is contained on MTS electro-hydraulic servo testing machine lower chuck 1.2.
The upper end of fixed bar 2 is cylindrical, and lower end is hemispherical, and transmitting axle force bar 4 upper end is
Hemispherical groove shape, the hemispheric lower end of upper fixing bar 2 is fixed 3 by hold-doun nut and is enclosed within transmitting axle force
In the hemispherical groove of bar 4 upper end, it is ensured that axial alignment pressurizes.
Equipped with vertical supporting bar 12 between upper end cover 10, pressure chamber bottom end cover 19, support bar 12 is in circle
Week is uniformly distributed.
A kind of based on MTS electro-hydraulic servo testing machine the geotechnological triaxial shear test equipment stated, its feature exists
In: described specimen mount 18 is fixed on pressure chamber base 20 middle position.
It is provided with water resisting protection tank 1.3 outside MTS electro-hydraulic servo testing machine lower chuck 1.2.
Opens circular hole in the middle of described water resisting protection tank 1.3, MTS electro-hydraulic servo testing machine lower chuck 1.2 from every
Open circular hole in the middle of water conservation tank 1.3 to pass.
Described based on MTS electro-hydraulic servo testing machine geotechnological triaxial shear test equipment is by controlling software
Control, control software write by Delphi language, be divided into engineering management module, test method select module,
Instrument state display module, test parameters display module, test objective setting module, start control module,
Trial curve display module, test data logging modle.
Test procedure is as follows:
A, by lower fixing bolt 25, pressure chamber base 20 and lower firm banking 24 are connected, and utilize
Lower firm banking 24 is connected by the most fixing bar 26 with MTS electro-hydraulic servo testing machine lower chuck 1.2, lower instead
Laminate plot controller 1.4 is connected on pressure chamber base inlet 23, and upper back-pressure fixing fabric structure device 1.5 is even
It is connected on back-pressure inlet 21；Specimen mount 18 is selected according to sample soil 17 sizes after completing；
B, sample soil 17 is put latex film 17.1, and specimen mount 18 that latex film 17.1 lower end is locked,
Latex film 17.1 upper end is locked crowded polishing head 15；
C, cover safety glass cover 1, test pressure chamber bottom end cover 19 is connected with lower fixing bolt 25
And fix, connect axial dowel steel 4 and upper fixing bar 2 by hold-doun nut 3, adjust that MTS is electro-hydraulic to be watched
Take testing machine upper grip 1.1 and be connected and ensure axial alignment with upper fixing bar 2, regulate MTS electro-hydraulic servo
Testing machine upper grip 1.1 make load transducer 14 and sample soil 17 top compression heads 15 under water keep properly away from
From；
D, by confined pressure inlet 22 to pressure chamber water filling, complete closing presure room upper end cover 10 after water filling
Bleed screw 9；
E, according to the confined pressure of requirement of experiment and back-pressure desired value, set, to MTS controlling software parameter
Electro-hydraulic servo testing machine axial force sets, and starting device after completing is tested.
Claims (6)
1. a geotechnological triaxial shear test equipment based on MTS electro-hydraulic servo testing machine, including MTS electro-hydraulic servo testing machine (1), it is characterized in that: at MTS electro-hydraulic servo testing machine upper grip (1.1) of MTS electro-hydraulic servo testing machine (1), equipped with geotechnique's triaxial shear test device on MTS electro-hydraulic servo testing machine lower chuck (1.2)；Described geotechnological triaxial shear test device includes testing pressure chamber, described test pressure chamber includes safety glass cover (11), be respectively provided with pressure chamber upper end cover (10), pressure chamber bottom end cover (19) at safety glass cover (11) two ends, pressure chamber bottom end cover (19) is fixed bolt (25) by bottom end cover and is contained in pressure chamber base (20)；Upper fixing bar (2) is connected with transmitting axle force bar (4) by hold-doun nut (3), dowel steel set (7) is sealingly fastened in pressure chamber upper end cover (10) center by sealing nut (8), transmitting axle force bar (4) is connected through dowel steel set (7) and pressure chamber top cover (10) with pressure chamber load transducer under water (14), and load transducer (14) lower end is hemispherical under water；The upper end of polishing head (15) is hemisphere groove type, during the hemispheric lower end of load transducer (14) withstands on the hemisphere groove of polishing head (15) upper end under water, equipped with bleed screw (9) and axial displacement acquisition bar (6) on pressure chamber upper end cover (10), at transmitting axle force bar (4) equipped with displacement transducer (5), the detection crown of displacement transducer (5) is on axial displacement acquisition bar (6)；Equipped with specimen mount (18) in pressure chamber base (20), confined pressure inlet (22), pressure chamber base inlet (23) and back-pressure inlet (21) is had in pressure chamber base (20), pressure chamber base inlet (23) is opened on specimen mount (18) above, equipped with tube for transfusion (16) on back-pressure inlet (21), tube for transfusion (16) is connected on polishing head (15), is opened on polishing head (15) bottom surface；Confined pressure fixing fabric structure device (1.6) is connected to confined pressure inlet (22), (27) are sensed equipped with pore pressure at pressure chamber base inlet (23), lower back-pressure fixing fabric structure device (1.4) is connected on pressure chamber base inlet (23), and upper back-pressure fixing fabric structure device (1.5) is connected on back-pressure inlet (21)；Pressure chamber base (20) is fixed bolt (25) with lower firm banking (24) by bottom end cover and is connected fixing, in lower firm banking (24) bottom surface equipped with lower fixing bar (26)；Upper fixing bar (2) is contained in MTS electro-hydraulic servo testing machine upper grip (1.1), and lower fixing bar (26) is contained on MTS electro-hydraulic servo testing machine lower chuck (1.2).
A kind of geotechnological triaxial shear test equipment based on MTS electro-hydraulic servo testing machine the most according to claim 1, it is characterized in that: the upper end of fixed bar (2) is cylinder, lower end is hemispherical, transmitting axle force bar (4) upper end is hemisphere groove type, the hemispheric lower end of upper fixing bar (2) is fixed in the hemispherical groove that (3) are enclosed within transmitting axle force bar (4) upper end by hold-doun nut, it is ensured that axial alignment pressurizes.
A kind of geotechnological triaxial shear test equipment based on MTS electro-hydraulic servo testing machine the most according to claim 1, it is characterized in that: equipped with vertical supporting bar (12) between upper end cover (10), pressure chamber bottom end cover (19), support bar (12) is circularly and evenly distributed.
A kind of geotechnological triaxial shear test equipment based on MTS electro-hydraulic servo testing machine the most according to claim 1, it is characterised in that: described specimen mount (18) is fixed on pressure chamber base (20) middle position.
A kind of geotechnological triaxial shear test equipment based on MTS electro-hydraulic servo testing machine the most according to claim 1, it is characterised in that: it is provided with water resisting protection tank (1.3) in MTS electro-hydraulic servo testing machine lower chuck (1.2) outside.
A kind of geotechnological triaxial shear test equipment based on MTS electro-hydraulic servo testing machine the most according to claim 5; it is characterized in that: open circular hole in the middle of described water resisting protection tank (1.3), MTS electro-hydraulic servo testing machine lower chuck (1.2) opens circular hole in the middle of water resisting protection tank (1.3) and passes.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620085374.2U CN205656082U (en) | 2016-01-22 | 2016-01-22 | Geotechnique triaxial shear test equipment based on servo testing machine of MTS electricity liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620085374.2U CN205656082U (en) | 2016-01-22 | 2016-01-22 | Geotechnique triaxial shear test equipment based on servo testing machine of MTS electricity liquid |
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| CN205656082U true CN205656082U (en) | 2016-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620085374.2U Expired - Fee Related CN205656082U (en) | 2016-01-22 | 2016-01-22 | Geotechnique triaxial shear test equipment based on servo testing machine of MTS electricity liquid |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105527175A (en) * | 2016-01-22 | 2016-04-27 | 湘潭大学 | Soil engineering triaxial shear test equipment based on MTS electro-hydraulic servo tester |
| CN106769493A (en) * | 2017-03-06 | 2017-05-31 | 中国人民解放军理工大学 | A kind of pseudo- three axles test device based on dynamic fatigue test machine |
| CN108106943A (en) * | 2018-01-09 | 2018-06-01 | 中国科学院武汉岩土力学研究所 | A kind of triaxial compression test instrument |
| CN108426788A (en) * | 2018-04-11 | 2018-08-21 | 四川大学 | Rock direct shearing test test specimen, piece fixture and its shearing test method |
| CN108426788B (en) * | 2018-04-11 | 2024-06-04 | 四川大学 | Rock direct shear experiment test piece, test piece clamp and shear test method thereof |
-
2016
- 2016-01-22 CN CN201620085374.2U patent/CN205656082U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105527175A (en) * | 2016-01-22 | 2016-04-27 | 湘潭大学 | Soil engineering triaxial shear test equipment based on MTS electro-hydraulic servo tester |
| CN106769493A (en) * | 2017-03-06 | 2017-05-31 | 中国人民解放军理工大学 | A kind of pseudo- three axles test device based on dynamic fatigue test machine |
| CN108106943A (en) * | 2018-01-09 | 2018-06-01 | 中国科学院武汉岩土力学研究所 | A kind of triaxial compression test instrument |
| CN108426788A (en) * | 2018-04-11 | 2018-08-21 | 四川大学 | Rock direct shearing test test specimen, piece fixture and its shearing test method |
| CN108426788B (en) * | 2018-04-11 | 2024-06-04 | 四川大学 | Rock direct shear experiment test piece, test piece clamp and shear test method thereof |
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| 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: 20161019 Termination date: 20190122 |
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| CF01 | Termination of patent right due to non-payment of annual fee |