CN208043563U - Wheeled rock mechanics triaxial tester and pilot system - Google Patents
Wheeled rock mechanics triaxial tester and pilot system Download PDFInfo
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- CN208043563U CN208043563U CN201820672088.5U CN201820672088U CN208043563U CN 208043563 U CN208043563 U CN 208043563U CN 201820672088 U CN201820672088 U CN 201820672088U CN 208043563 U CN208043563 U CN 208043563U
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Abstract
A kind of wheeled rock mechanics triaxial tester and pilot system, are related to rock mechanics experiment field.Wheeled rock mechanics triaxial tester includes the sleeve being vertically arranged, the top opening of sleeve is covered with head cover, the bottom-port cover of sleeve is equipped with pedestal, sleeve, pressure indoor is collectively formed in head cover and pedestal, pressure indoor offers fuel feed hole and gas vent respectively, axle power load bar is inserted on head cover vertically, the bottom end of axle power load bar can apply downward loading force, the turntable that can be horizontally rotated is provided in pressure indoor, with the rotation of turntable, it is directed toward the different location of turntable in the bottom end of axle power load bar, the wheeled rock mechanics triaxial tester can load polylith rock sample, to which the efficiency of rock triaxial test be substantially improved.Wheeled rock mechanics triaxial test system can be filled in an only confining pressure of progress unloads, and completes the mechanical test of different rock samples.
Description
Technical field
The utility model is related to rock mechanics experiment fields, in particular to a kind of wheeled rock mechanics triaxial test
Instrument and pilot system.
Background technology
Rock triaxial test is the important means of study of rocks mechanics, it can primitively answered than more fully simulating ground
Mechanical property under power state is the important evidence of engineering design.Since deep rock is in complicated stress state, getter
Rock mass or ore body many places encountered in journey is in three-dimensional stress state, itself is again a kind of sufficiently complex natural material, very
In the case of more, the rock stress experiment under Simple stress condition cannot reflect the rock mass stress state of engineering in practice completely, must
The mechanical property of rock under complex stress condition must be fully realized.Therefore the rock test research carried out under three Spindle Status seems ten
Divide important.
Rock triaxial test machine is the fundamental test equipment of study of rocks mechanical property, it can be applied to the rock of high confining pressure
Rock Three axis creep test under stone triaxial shear test, confining pressure controlled condition.Existing routine rock triaxial test machine encloses
One piece of rock sample can only be loaded in pressure chamber, during measuring the experiment of stress-strain diagram of the rock sample, needed
Hydraulic oil is filled in pressure indoor, off-test again extracts the indoor hydraulic oil of confining pressure out.Different rock samples are measured, then every time
Take a long time to load and unload sample, and be required for again filling pressure indoor every time unloading confining pressure, causes test efficiency low.
Therefore, it is necessary to a kind of rock triaxial test sides that can carry out testing and test effect is high to different rock samples
Method.
Utility model content
The purpose of this utility model is to provide a kind of wheeled rock mechanics triaxial testers, can load polylith rock
Sample, to which the efficiency of rock triaxial test be substantially improved.
The purpose of this utility model is to provide a kind of wheeled rock mechanics triaxial test systems, can only carry out once
Confining pressure is filled unload in the case of, complete the mechanical test of different rock samples.
The another object of the utility model is to provide a kind of Rock Triaxial Compression Test, and this method is simple, test efficiency
It is high.
What the embodiments of the present invention were realized in：
A kind of wheeled rock mechanics triaxial tester comprising the top opening of the sleeve being vertically arranged, sleeve is covered with head cover,
The bottom-port cover of sleeve is equipped with pedestal, and pressure indoor is collectively formed in sleeve, head cover and pedestal, and pressure indoor offers fuel feed hole and row respectively
Stomata is inserted with axle power load bar on head cover vertically, and the bottom end of axle power load bar can apply downward loading force, be set in pressure indoor
It is equipped with the turntable that can be horizontally rotated, with the rotation of turntable, the different location of turntable is directed toward in the bottom end of axle power load bar.
In the utility model preferred embodiment, multiple fixed cylinders for placing rock sample are provided on above-mentioned turntable,
Fixed cylinder is arranged along the edge of turntable disk.
In the utility model preferred embodiment, above-mentioned fixed cylinder includes the thermal shrinkable sleeve being wrapped in around rock sample, and
The push-down head for being set to the seaming chuck of thermal shrinkable sleeve top opening, being set to thermal shrinkable sleeve base opening.
In the utility model preferred embodiment, above-mentioned head cover includes integrally formed first lamina tecti and the second head cover
Plate, the first lamina tecti cover on the top surface of sleeve, and the second lamina tecti is located in sleeve, and the second head cover is fixed as one with bush whorl
Body.
In the utility model preferred embodiment, above-mentioned pedestal includes integrally formed first base plate and second base
Plate, first base plate cover on the bottom surface of sleeve, and second base plate is located in sleeve, and second base is fixed as one with bush whorl
Body.
In the utility model preferred embodiment, above-mentioned gas vent is located above fuel feed hole.
In the utility model preferred embodiment, above-mentioned fuel feed hole is located on pedestal, and gas vent is located on head cover.
Further include the oil cylinder that hydraulic oil is provided into pressure indoor in the utility model preferred embodiment.
A kind of wheeled rock mechanics triaxial test system comprising above-mentioned wheeled rock mechanics triaxial tester, and
Loading frame, loading frame are set up in above pressure indoor, and loading frame is placed with axially loaded oil cylinder, axially loaded oil cylinder and axis
Power load bar connects.
In the utility model preferred embodiment, above-mentioned further includes temperature control device, and temperature control device includes linking together
Heating mantle and temperature control box, pressure indoor be located in heating mantle.
The advantageous effect of the utility model embodiment is：The wheeled rock mechanics triaxial tester of the utility model embodiment
Including the sleeve being vertically arranged, the top opening of sleeve is covered with head cover, and the bottom-port cover of sleeve is equipped with pedestal, sleeve, head cover and pedestal
Pressure indoor is collectively formed, pressure indoor offers fuel feed hole and gas vent, axle power load bar, axle power are inserted with vertically on head cover respectively
The bottom end of load bar can apply downward loading force, and the turntable that can be horizontally rotated is provided in pressure indoor, with the rotation of turntable,
The different location of turntable is directed toward in the bottom end of axle power load bar, which can load the examination of polylith rock
Sample, to which the efficiency of rock triaxial test be substantially improved.The wheeled rock mechanics triaxial test system of the utility model embodiment
Including above-mentioned wheeled rock mechanics triaxial tester and loading frame, loading frame is set up in above pressure indoor, loads frame
Frame is placed with axially loaded oil cylinder, and axially loaded oil cylinder is connect with axle power load bar, the wheeled rock mechanics triaxial test system
It can fill and unload in an only confining pressure of progress, complete the mechanical test of different rock samples.
Description of the drawings
It, below will be to required use in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is a kind of structural representation for wheeled rock mechanics triaxial tester that the utility model first embodiment provides
Figure；
Fig. 2 is the decomposition texture schematic diagram of Fig. 1；
Fig. 3 is the structural schematic diagram of fixed cylinder in Fig. 2；
Fig. 4 is a kind of structural representation for wheeled rock mechanics triaxial test system that the utility model second embodiment provides
Figure.
Icon：The wheeled rock mechanics triaxial testers of 100-；110- sleeves；120- head covers；The first lamina tectis of 121-；122-
Second lamina tecti；130- pedestals；131- first base plates；132- second base plates；141- fuel feed holes；142- gas vents；150-
Axle power load bar；160- turntables；170- fixed cylinders；171- thermal shrinkable sleeves；172- seaming chucks；173- push-down heads；The wheeled rocks of 200-
Mechanics triaxial test system；210- loading frames；The axially loaded oil cylinders of 220-.
Specific implementation mode
It is new below in conjunction with this practicality to keep the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here described in attached drawing and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiments of the present invention to providing in the accompanying drawings is not intended to limit requirement below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained without creative efforts, all
Belong to the range of the utility model protection.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "vertical", "horizontal",
The orientation or positional relationship of the instructions such as "inner", "outside" be based on the orientation or positional relationship shown in the drawings or practicality newly
Type product using when the orientation or positional relationship usually put, be merely for convenience of describing the present invention and simplifying the description, and
It is not that the device of instruction or hint meaning or element must have a particular orientation, with specific azimuth configuration and operation, therefore
It should not be understood as limiting the present invention.In addition, term " first ", " second " etc. are only used for distinguishing description, and cannot manage
Solution is instruction or implies relative importance.
In addition, the terms such as term "horizontal", "vertical" are not offered as requiring component abswolute level or pendency, but can be slightly
Low dip.It is not to indicate that the structure has been had to if "horizontal" refers to only that its direction is more horizontal with respect to for "vertical"
It is complete horizontal, but can be slightly tilted.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " installation ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, it can understand above-mentioned art with concrete condition
The concrete meaning of language in the present invention.
First embodiment
It please refers to shown in Fig. 1 and Fig. 2, the present embodiment provides a kind of wheeled rock mechanics triaxial testers 100 comprising perpendicular
The top opening of the sleeve 110 being directly arranged, sleeve 110 is covered with head cover 120, and the bottom-port cover of sleeve 110 is equipped with pedestal 130, sleeve
110, pressure indoor is collectively formed in head cover 120 and pedestal 130, and pressure indoor offers fuel feed hole 141 and gas vent 142, head cover respectively
Axle power load bar 150 is inserted on 120 vertically, the bottom end of axle power load bar 150 can apply downward loading force, be set in pressure indoor
It is equipped with the turntable 160 that can be horizontally rotated, with the rotation of turntable 160, turntable 160 is directed toward not in the bottom end of axle power load bar 150
Same position.The wheeled rock mechanics triaxial tester 100 of the present embodiment can load polylith rock sample, to which rock be substantially improved
The efficiency of stone triaxial test.
During the test, need to realize that confining pressure is filled and unloaded, i.e., fill drain pressure oil into pressure indoor, generally by oil cylinder to
Hydraulic oil is provided in pressure indoor, and fuel feed hole 141 is for being filled with hydraulic oil into pressure indoor, gas vent 142 is to be discharged
The indoor air of confining pressure.General gas vent 142 is located at 141 top of fuel feed hole, i.e., fuel feed hole 141 is in lower position, gas vent
142 in higher position, the present embodiment fuel feed hole 141 be located on pedestal 130, gas vent 142 is located on head cover 120.
In order to realize that polylith rock sample stabilization is loaded on turntable 160, it is provided on turntable 160 multiple for placing rock sample
Fixed cylinder 170, circumferential edge edge setting of the fixed cylinder 170 along 160 disk of turntable.Each fixed cylinder 170 loads one piece of rock sample, loads
After, all rock samples are arranged along the edge of 160 disk of turntable, with the rotation of turntable 160, the bottom end of axle power load bar 150
It can be directed toward the different location at 160 edge of turntable, that is, be directed toward different rock samples, and axle power is loaded to different rock samples, carry out rock three
Shaft experiment.
Shown in Figure 3, fixed cylinder 170 is wrapped in the thermal shrinkable sleeve 171 around rock sample, and is set to thermal shrinkable sleeve
The seaming chuck 172 of 171 top openings, the push-down head 173 for being set to 171 base opening of thermal shrinkable sleeve, seaming chuck 172, thermal shrinkable sleeve 171 and push-down head
173 are collectively formed the confined space for accommodating rock sample.
Shown in Figure 2 in the present embodiment, head cover 120 includes 121 and second lamina tecti of integrally formed first lamina tecti
122, the first lamina tecti 121 covers on the top surface of sleeve 110, and the second lamina tecti 122 is located in sleeve 110, the second lamina tecti 122
It is screwed and is integrated with sleeve 110；Pedestal 130 includes integrally formed first base plate 131 and second base plate 132, the
One base board 131 covers on the bottom surface of sleeve 110, and second base plate 132 is located in sleeve 110, second base plate 132 and sleeve
110, which are screwed, is integrated.
It is convenient and practical using the pressure indoor being integrated that is screwed between head cover 120, sleeve 110 and pedestal 130；Head cover
120, sleeve 110 and pedestal 130 are all made of high-strength stainless steel and are made, can anti-general soda acid salt corrosion；Pressure indoor is (usually
On head cover 120 and pedestal 130) reserve ultrasonic test, acoustic emission test and resistivity measurement, the mechanics survey containing joint samples
The test interfaces such as examination；Multiple sensor interfaces are reserved, the later stage is facilitated to extend.Pedestal 130 is equipped with sensor wire socket, can incite somebody to action
Axial Linear Variable Differential Transformer (LVDT) displacement sensor, lateral displacement sensor etc.
Outside signal transmission to pressure indoor.
The present embodiment also provides a kind of rock triaxial test side based on above-mentioned wheeled rock mechanics triaxial tester 100
Method comprising following steps：
S1, the different location by different rock sample fixed placements on turntable 160, specifically wrap rock sample thermal shrinkable sleeve 171
It wraps up in and is located between seaming chuck 172 and push-down head 173, then push-down head 173 is seated on turntable 160；
S2, head cover 120, sleeve 110 and 130 sealing group of pedestal are shaped as pressure indoor, generally first pass through axle power load bar
150 pairs of rock samples below preload axis pressure, such as axis pressure is added to 1MPa, are mainly used for fixed rock sample, then pass through fuel feed hole
141 pairs of pressure indoors are filled with hydraulic oil, when hydraulic oil is persistently overflowed by gas vent 142, the indoor oil pressure of confining pressure to testing setting value,
Stop oil-filled；
S3, entire experiment are tested rock sample used from low confining pressure and are done, and are added to rock sample below by axle power load bar 150
Axle power is carried, until rock sample destroys, measures the stress-strain diagram of the rock sample；
S4, control turntable 160 rotate, and so that next piece of rock sample is rotated to the lower section of axle power load bar 150, repeat step S3's
Operation, until completing the test to all rock samples.
Second embodiment
It please refers to shown in Fig. 2 and Fig. 4, the present embodiment provides a kind of wheeled rock mechanics triaxial test systems 200 comprising
The wheeled rock mechanics triaxial tester 100 of first embodiment and the loading frame 210 of large-tonnage bias, loading frame 210
It is set up in above pressure indoor, the interior lower end face of loading frame 210 is placed with axially loaded oil cylinder 220, axially loaded oil cylinder 220
It is connect with axle power load bar 150.
In the present embodiment, loading frame 210 includes portal frame and forcing press bearing plate, wheeled rock mechanics triaxial tester
100 are positioned on forcing press bearing plate, and axially loaded oil cylinder 220 is set on portal frame.Mangneto built in axially loaded oil cylinder 220
Large-tonnage load transducer is laid on displacement sensor, top.Loading frame 210 bears axially loaded oil cylinder 220 and is applied to rock
Axial reaction force on sample ensures that axially loaded structural strain's are small as possible.
In the present embodiment, wheeled rock mechanics triaxial test system 200 further includes temperature control device, and temperature control device includes connection
Heating mantle together and temperature control box, pressure indoor are located in heating mantle.Heating mantle is flexible detachable heating mantle, can will be kept the temperature
Outside of the set fixed to pressure indoor；Heat preservation is cased with individual heelpiece and top cap, can use on demand, oil cylinder is sealed as much as possible
Get up, precisely controls the temperature in pressure indoor.Heating mantle is used together with mating temperature control box, is controlled and is enclosed when for testing
The heating process of pressure chamber.The heating of medium in temperature control box oil cylinder with controllable, oil cylinder built-in type thermocouple is as master control condition, by heat
The temperature signal is transmitted to temperature control box and carries out computer heating control by thermocouple sensor；Meanwhile can real-time display heater temperature, and
The maximum temperature for setting heater heating, after heater rises to this temperature, will automatically shut down heater, to protect heater,
Prolong the service life.
Test method using wheeled rock mechanics triaxial test system 200 is as follows：
1, rock sample is prepared：It is prepared according to rock sample and requires to prepare rock sample.
2, rock sample is installed：Rock sample is mounted on pedestal 130 (forcing press bearing plate center), is push-down head successively from top to bottom
173, rock sample, seaming chuck 172, wherein push-down head 173 and seaming chuck 172 need to be glued with rock sample on tooling machine in a pre-installation
Knot.After sample is fixed, the interior confining pressure outage on seaming chuck 172 is connected.
3, data output connection：Foil gauge is connected with strain acquirement interface with electric wire connecting junction, data will be defeated from two channels
Go out.
4, instrument testing：Assemble pressure indoor, axle power load bar 150 and axially loaded oil cylinder 220.Connect triaxial cell with
Stabilizing hydraulic pressure Comprehensive Control platform opens load software and strain acquirement software.
5, oil-filled：Apply smaller axis to rock sample below by axially loaded oil cylinder 220 and axle power load bar 150
To pressure, the axial pressure head of 150 bottom end of axle power load bar is contacted with seaming chuck 172 (according to the variation tendency of load data come
Judge, when axial force is uprushed, that is, be considered as and contacted).It is oil-filled to the inner cavity of pressure indoor respectively, when interior outer vent 142 goes out
When oily, it is considered as oil and has been filled with.
6, it loads：Select suitable load mode (flow control, Isobarically Control and the control of ladder pressure etc.) according to advance
The load parameter of setting slowly changes confining pressure inside and outside rock sample, axis pressure and torsion, until rock sample destroys, and records maximal destruction
Breakoff phenomenon in load and loading procedure.
7, experiment terminates, and axial jack and torsion jack are kept in the center.And empty the oil of inside and outside pressure indoor,
Remove rock sample.Output test data.
8, the damage -form of rock sample is described, and writes down related situation.
Achievement arranges and analysis：
To the stress-strain data of output, finishing analysis is carried out.The variation tendency for analyzing each load parameter, is axially answered
Power, radial stress, circumference stress and shear stress, three principal stresses, mean principle stress, shear stress, intermediate principal stress coefficient, master answer
Ess-strain variation tendency is analyzed in the variation of power axis rotation angle iso-stress parameter.And destructive characteristics are analyzed, according to assay features
Point proposes the yield criterion for considering principal stress axis rotation.
In conclusion the wheeled rock mechanics triaxial tester of the utility model can load polylith rock sample, to
The efficiency of rock triaxial test is substantially improved；The wheeled rock mechanics triaxial test system of the utility model can only carry out one
Secondary confining pressure is filled unload in the case of, complete the mechanical test of different rock samples.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of wheeled rock mechanics triaxial tester, which is characterized in that it includes the sleeve being vertically arranged, the top of the sleeve
Lid is equipped with head cover, and the bottom-port cover of the sleeve is equipped with pedestal, and confining pressure is collectively formed in the sleeve, the head cover and the pedestal
Room, the pressure indoor offer fuel feed hole and gas vent, are inserted with axle power load bar, the axle power on the head cover vertically respectively
The bottom end of load bar can apply downward loading force, and the turntable that can be horizontally rotated is provided in the pressure indoor, with described turn
It is directed toward the different location of the turntable in the bottom end of the rotation of disk, the axle power load bar.
2. wheeled rock mechanics triaxial tester according to claim 1, which is characterized in that be provided on the turntable more
A fixed cylinder for placing rock sample, the fixed cylinder are arranged along the edge of the turntable disk.
3. wheeled rock mechanics triaxial tester according to claim 2, which is characterized in that the fixed cylinder includes package
Thermal shrinkable sleeve around rock sample, and be set to the seaming chuck of the thermal shrinkable sleeve top opening, be set under the thermal shrinkable sleeve base opening
Pressure head.
4. wheeled rock mechanics triaxial tester according to claim 1, which is characterized in that the head cover include one at
The first lamina tecti and the second lamina tecti of type, first lamina tecti cover on the top surface of the sleeve, second lamina tecti
In the sleeve, second head cover is fixed as one with the bush whorl.
5. wheeled rock mechanics triaxial tester according to claim 1, which is characterized in that the pedestal include one at
The first base plate and second base plate of type, the first base plate cover on the bottom surface of the sleeve, the second base plate
In the sleeve, the second base is fixed as one with the bush whorl.
6. wheeled rock mechanics triaxial tester according to claim 1, which is characterized in that the gas vent is located at described
Above fuel feed hole.
7. wheeled rock mechanics triaxial tester according to claim 6, which is characterized in that the fuel feed hole is located at described
On pedestal, the gas vent is located on the head cover.
8. wheeled rock mechanics triaxial tester according to claim 1, which is characterized in that further include to the pressure indoor
The interior oil cylinder that hydraulic oil is provided.
9. a kind of wheeled rock mechanics triaxial test system, which is characterized in that it includes wheeled rock as described in claim 1
Mechanics triaxial tester and loading frame, the loading frame are set up in above the pressure indoor, and the loading frame is placed
There are axially loaded oil cylinder, axially loaded oil cylinder to be connect with the axle power load bar.
10. wheeled rock mechanics triaxial test system according to claim 9, which is characterized in that further include temperature control device,
The temperature control device includes the heating mantle to link together and temperature control box, and the pressure indoor is located in the heating mantle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820672088.5U CN208043563U (en) | 2018-05-07 | 2018-05-07 | Wheeled rock mechanics triaxial tester and pilot system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820672088.5U CN208043563U (en) | 2018-05-07 | 2018-05-07 | Wheeled rock mechanics triaxial tester and pilot system |
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| Publication Number | Publication Date |
|---|---|
| CN208043563U true CN208043563U (en) | 2018-11-02 |
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ID=63928763
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108333055A (en) * | 2018-05-07 | 2018-07-27 | 中国科学院武汉岩土力学研究所 | Wheeled rock mechanics triaxial tester, pilot system and test method |
-
2018
- 2018-05-07 CN CN201820672088.5U patent/CN208043563U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108333055A (en) * | 2018-05-07 | 2018-07-27 | 中国科学院武汉岩土力学研究所 | Wheeled rock mechanics triaxial tester, pilot system and test method |
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