CN108760535A - A kind of rock-soil material high speed shear experimental rig and its test method - Google Patents
A kind of rock-soil material high speed shear experimental rig and its test method Download PDFInfo
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- CN108760535A CN108760535A CN201810748477.6A CN201810748477A CN108760535A CN 108760535 A CN108760535 A CN 108760535A CN 201810748477 A CN201810748477 A CN 201810748477A CN 108760535 A CN108760535 A CN 108760535A
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- 239000002689 soil Substances 0.000 title claims abstract description 42
- 239000000463 material Substances 0.000 title claims abstract description 38
- 238000010998 test method Methods 0.000 title description 4
- 238000002474 experimental method Methods 0.000 claims abstract description 96
- 238000012360 testing method Methods 0.000 claims abstract description 54
- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- 238000009413 insulation Methods 0.000 claims abstract description 14
- 238000010008 shearing Methods 0.000 claims description 23
- 238000006073 displacement reaction Methods 0.000 claims description 14
- 230000000694 effects Effects 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 claims description 8
- 230000005484 gravity Effects 0.000 claims description 5
- 240000002853 Nelumbo nucifera Species 0.000 claims description 3
- 235000006508 Nelumbo nucifera Nutrition 0.000 claims description 3
- 235000006510 Nelumbo pentapetala Nutrition 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 239000010687 lubricating oil Substances 0.000 claims description 3
- 239000003921 oil Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000007660 shear property test Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 6
- 230000009471 action Effects 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 238000009834 vaporization Methods 0.000 description 4
- 230000008016 vaporization Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
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- 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
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
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- 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
- G01N2203/0025—Shearing
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- 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
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- 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
- G01N2203/06—Indicating or recording means; Sensing means
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- 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
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0694—Temperature
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- Life Sciences & Earth Sciences (AREA)
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- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention provides a kind of rock-soil material high speed shear experimental rig and methods, including machine frame system, load resisting systems, drive system and pilot system, pilot system uses the heat-insulated experiment cylinder body with cylinder cap to provide closed and relative insulation test space for experiment, the pilot system includes rotational shear disk and fixed shear disk, rotational shear disk is placed in bottom and the transmission axis connection with stepper motor in the test cylinder (jar) body, fixed shear disk is in above the station of rotational shear disk, and by numerical control hydraulic jack pair, it applies normal load；The pilot system includes experiment cavity, and safety air vavle, temperature sensor and baroceptor are equipped in the experiment cavity.The present invention realizes the high speed shear that rock-soil material is stablized, to complete the quantitative study of rock-soil material high speed shear vapography in closed and relative insulation space.
Description
Technical field
The invention belongs to geotechnical engineering experimental technique fields, and in particular to a kind of high speed shear experimental rig of rock-soil material
And test method, it is mainly used for testing rock-soil material under high speed shear effect, the variation rule of internal temperature and vaporization pressure
Rule.
Background technology
High-speed shadowgraph technique is the geological disaster generally occurred both at home and abroad, has the allusion quotations such as movement velocity is fast, migration distance is remote
Type feature, most of high-speed shadowgraph techniques all cause a large amount of casualties and property loss.Currently, high-speed shadowgraph technique
Origin mechanism, be still geotechnical engineering circle does not solve one of problem, and domestic and foreign scholars have carried out this numerous studies.Case study
Show with the calculated results：The heat that sliding surface shear band generates during high-speed friction can lead to sliding surface shear band sheet
It is vaporized after body and its moisture of internal preservation are heated.The high pressure gas that high speed shear vaporization generates, the shape on the downside of slip mass
At an air cushion, cushioning effect makes slip mass under the action of extremely low frictional resistance, considerably long distance of migrating.Sliding surface is cut
The high speed shear vapography of band is cut, only theoretic calculates analysis at present, and there has been no experimental rigs can be used for quantitative study.
The exploitation of rock-soil material high speed shear experimental rig, it is necessary first to realize stable high speed shear process, secondly need
To carry out in closed and relative insulation space.Currently, the relevant shear of geotechnical engineering experimental technique field, is mainly deposited
In the defect of two aspects：1, existing rock-soil material shearing test device is the test for rock-soil material mechanical characteristic,
Shear velocity is slow, and cutting stroke is short, cannot achieve high speed shear；2, existing rock-soil material shearing test device tests process
Middle rock-soil material is in open experimental enviroment, can not collect the heat generated in shear history.Therefore, at present there has been no
The experimental rig met the requirements can be used for the quantitative study of rock-soil material high speed shear vapography.
Invention content
Present invention technical problems to be solved first are to provide a kind of rock-soil material high speed shear experimental rig, closed and
In relative insulation space, the high speed shear that rock-soil material is stablized is realized, to complete rock-soil material high speed shear vapography
Quantitative study.For this purpose, the present invention uses following technical scheme：
A kind of rock-soil material high speed shear experimental rig, it is characterised in that：Including machine frame system, load resisting systems, drive system and
Pilot system, the load resisting systems, the drive system and the pilot system are mounted in the machine frame system, the lotus
Loading system is installed on the top of the machine frame system, and stably and controllable normal direction lotus is provided for experiment by numerical control hydraulic jack
It carries, the drive system is installed on the bottom of the machine frame system, is provided for experiment by stepper motor and continues controllable rotation
Power, the pilot system are installed in the middle part of the machine frame system, and the heat-insulated experiment cylinder body with cylinder cap is used to be carried for experiment
For closed and relative insulation test space, the pilot system includes rotational shear disk and fixed shear disk, rotational shear disk
It is less than the cavity heights of experiment cylinder body with the height summation of fixed shear disk, the rotational shear disk is placed in the test cylinder (jar) body
Bottom and transmission axis connection with stepper motor, fixed shear disk is in above the station of rotational shear disk, very heavy by numerical control hydraulic
Top applies normal load to it；
The pilot system includes experiment cavity, and the experiment cavity is opened in test cylinder (jar) body, is in fixed shear disk and rotation
Turn share zone in the test cylinder (jar) body between shearing disk, be equipped in the experiment cavity safety air vavle, temperature sensor and
Baroceptor；The safety air vavle in the pilot system pressure be more than setting value after start to work；The temperature sensing
Device for monitoring the temperature during high speed shear is tested in the experiment cavity in real time；The baroceptor for supervising in real time
Air pressure during survey high speed shear in the experiment cavity.
While using above-mentioned technical proposal, the present invention can also be used or be combined using technology further below
Scheme：
The machine frame system includes instrument top plate, rigid posts, chassis and rigid joist；The instrument top plate, it is described just
Property the vertical box-structure that constitutes of column and the chassis be the load resisting systems, the drive system and the experiment are
System provides installation and operating space；Described rigidity joist one end is connected with the rigid posts, the other end and the pilot system
Experiment cylinder body be connected, stable support is provided for the pilot system.
The load resisting systems include jack chassis, jack anchor bolt and numerical control hydraulic jack；The numerical control liquid
Press the central axes of jack consistent with the central axes of the pilot system；The piston of the numerical control hydraulic jack can be from the examination
The test cylinder (jar) tops opening of check system enters the pilot system.The load resisting systems are experiment by numerical control hydraulic jack
Stably and controllable Normal stress is provided, the overlying gravity load for Rock And Soil in simulation test procedure.
The drive system includes stepper motor and transmission shaft；The central axes of the stepper motor and the pilot system
Central axes are consistent；The transmission shaft is stretched out from the stepper motor top, and the experiment cylinder base for passing through the pilot system
Circular open is connect into the pilot system with rotational shear disk.The drive system is provided by the transmission shaft for experiment
Continue controllable rotary power, the high speed shear for carrying out rock-soil material.
The experiment cylinder cap and experiment cylinder body of the pilot system use engineering thermal insulation ceramics；The experiment cylinder cap and the examination
Testing cylinder body can be threadedly coupled by rotating, and the cylindrical cavity constituted after connection provides closed and phase for high speed shear experiment
To heat-insulated experimental enviroment；Along the circumferential direction decile offers several clevis bolt holes to the sample outer wall of cylinder block, for
Positioning bolt, which connects and positioning bolt is made to stretch into, positions fixed shear disk in sample cylinder body, position fixed shear disk, make described solid
Determine shearing disk to be only capable of that vertical direction displacement occurs and direction displacement cannot be rotated.
The rotational shear disk is placed in opening up and bottom and is provided with the connection with the transmission axis connection of drive system
Hole；The fixed shear disk is placed at the top of the experiment cylinder body, and opening down and outer wall is along the circumferential direction equipped with several rotation stops
Slot, the positioning element for being used for and being inserted into from experiment cylinder body carry out circumferential rotation stop cooperation, the fixed shear disk are made to be only capable of occurring
Vertical direction displacement and direction displacement cannot be rotated；The internal cavities shape of the rotational shear disk and the fixed shear disk
Shape is consistent, is top half cylindrical, lower half portion has spline structure, for preventing sample from spiraling relative to shearing
Turn.The shape of the rotational shear disk and fixed shear disk internal cavities, plays the clamping action to ground sample, is cutting at a high speed
It during cutting, avoids producing relative sliding between ground sample and shearing disk, while in turn ensuring the shearing of high speed shear experiment
Face is circle so that shear surface comes into full contact with, and convenient for calculating the analysis of test result.
The rotation stop slot and the positioning bolt carry out circumferential rotation stop cooperation, and the fixed shear disk is made to be only capable of occurring to erect
Histogram cannot rotate direction displacement to displacement.
Another technical problems to be solved of the present invention are to provide a kind of rock-soil material high speed shear experimental rig, close
It closes and in relative insulation space, realizes the high speed shear that rock-soil material is stablized, to complete rock-soil material high speed shear vaporization effect
The quantitative study answered.For this purpose, the present invention uses following technical scheme：
A kind of rock-soil material high speed shear test method, it is characterised in that：Include the following steps：
(1) sample is installed：The ground sample completed will be prepared to be respectively charged into fixed shear disk and rotational shear disk, in sample preparation
When ensure ground sample to be cut face smooth, and be higher by 1 ~ 1.5cm of fixed shear disk and rotational shear plate edge respectively；
(2) experiment prepares：One layer of lubricating oil of side brush outside fixed shear disk and rotational shear disk；By rotational shear disk together with interior
The ground sample in portion is packed into test cylinder (jar) body, and fine rotation rotational shear disk makes the transmission shaft of stepper motor be caught in rotational shear
In the interior hexagonal card hole of pan bottom；Fixed shear disk is packed into together with internal ground sample in test cylinder (jar) body, fine rotation is solid
Determine shearing disk, makes the clevis bolt hole on the outside of the spin-ended slot alignment test cylinder body of fixed shear disk outer surface, in clevis bolt
Hole screws in clevis bolt；Rigid backing plate is placed on the upside of fixed shear disk；Sample cylinder cap is screwed, sample cylinder body is closed；
(3) initial connection：Numerical control hydraulic jack, stepper motor, temperature sensor and baroceptor are connected to control dress
It sets, and initialization data；It gives numerical control hydraulic jack one smaller oil pressure, its piston is made to enter in pilot system and touches
Rigid backing plate in test applies normal load by rigid backing plate to fixed shear disk；It gives stepper motor one pulse, makes
One step angle occurs for transmission shaft, to ensure that each connecting portion of instrument is in close contact；
(4) Normal stress：According to the overlying gravity load of ground sample, normal direction is gradually applied using numerical control hydraulic jack and is answered
Power is to setting value；
(5) shearing test：Start stepper motor, the high speed shear for carrying out ground sample according to certain rotational shear speed is tried
It tests, the temperature in Simultaneous Monitoring record experiment cavity and atmospheric pressure value；
(6) it repeats to test：The rotational shear speed of different grades is adjusted, step is repeated（1）~（5）；
(7) data processing：It draws under the effect of different brackets rotational shear speed, the pass of shear time and the empty cavity temperature of experiment
It is the relation curve of curve and shear time and air pressure in experiment cavity.
The beneficial effects of the invention are as follows：
1, by the way of rotational shear, realize stably and controllable high speed shear, overcome traditional direct shear test can not simulate it is long away from
Defect from, specific shear rate；
2, using the form of experiment cylinder cap and experiment cylinder body combination, closed and relative insulation experiment is provided for high speed shear experiment
Space overcomes traditional direct shear test rock-soil material to be in the defect of open trial environment, realizes the vaporization of rock-soil material high speed shear
The quantification and precision of effect are studied；
3, high speed shear experiment, shearing disk internal cavities top half cylinder are carried out using fixed shear disk and rotational shear disk
Shape, lower half portion inscribe hexagon avoid rock to the clamping action of ground sample to realize during high speed shear
It is produced relative sliding between soil sample and shearing disk, while in turn ensuring that the shear surface of high speed shear experiment is circle；
4, during using safety air vavle guarantee test, the pressure in pilot system is within the scope of the security value (s) of setting, from
And it ensure that test apparatus and the safety of operating personnel；
5, it during using built-in temperature sensor and the real-time monitoring record high speed shear experiment of baroceptor, tests in cavity
The temperature of gas and air pressure vaporize effect to realize shear rate, Normal stress and ground sample constituents etc. to high speed shear
The quantitative study answered.
Description of the drawings
Fig. 1 is a kind of front view of rock-soil material high speed shear experimental rig.
Fig. 2 is a kind of sectional view of rock-soil material high speed shear experimental rig.
Fig. 3 is a kind of stereogram of rock-soil material high speed shear experimental rig.
Fig. 4 is Fig. 1A-A’Sectional view.
Fig. 5 is the stereogram of fixed shear disk.
Figure label：1：Instrument top plate；2：Jack chassis；3：Jack anchor bolt；4：Numerical control hydraulic jack；5：
Test cylinder cap；6：Rigid backing plate；7：Fixed shear disk；8：Spin-ended slot；9：Clevis bolt；10：Clevis bolt hole；11：Experiment
Cavity；12：Safety air vavle；13：Temperature sensor；14：Baroceptor；15：Test cylinder body；16：Rotational shear disk；17：Just
Property column；18：Rigid joist；19：Transmission shaft；20：Stepper motor；21：Motor chassis；22：Motor anchor bolt；23：Instrument
Bottom plate；24：Interior hexagonal card hole.
Specific implementation mode
With reference to attached drawing.A kind of rock-soil material high speed shear experimental rig provided by the invention, including machine frame system, load system
System, drive system and pilot system；The load resisting systems, the drive system and the pilot system are mounted on the rack
In system；The load resisting systems are installed on the top of the machine frame system, and stabilization is provided for experiment by numerical control hydraulic jack
Controllable Normal stress；The drive system is installed on the bottom of the machine frame system, is provided and is held for experiment by stepper motor
Continuous controllable rotary power；The pilot system is installed in the middle part of the machine frame system, uses experiment cylinder body to be provided for experiment close
It closes and the test space of relative insulation, and passes through the high-speed revolution shearing that shearing disk realizes rock-soil material.
The machine frame system includes instrument top plate 1, rigid posts 17, chassis 23 and rigid joist 18；The rigidity
The top of column 17 is connected with the quadrangle of instrument top plate 1, and bottom and the quadrangle of chassis 23 are connected；The instrument top plate 1, just
Property column 17 and chassis 23 constitute vertical box-structure, and installation is provided for load resisting systems, drive system and pilot system
And operating space；Described rigidity 18 one end of joist is connected with the rigid posts 17, the experiment cylinder body of the other end and pilot system
15 are connected, and stable support is provided for pilot system.
The load resisting systems include jack chassis 2, jack anchor bolt 3 and numerical control hydraulic jack 4；It is described very heavy
Top chassis 2 is removably installed in 1 downside of the instrument top plate by the jack anchor bolt 3；The numerical control hydraulic thousand
Jin top 4 is fixed on the jack chassis 2；The axis of the central axes and the pilot system of the numerical control hydraulic jack 4
Line is consistent；The piston of the numerical control hydraulic jack 4 can be open from 5 top circular of experiment cylinder cap of the pilot system enters institute
State pilot system；The load resisting systems provide stably and controllable Normal stress by numerical control hydraulic jack 4 for experiment, are used for mould
The overlying gravity load of Rock And Soil during quasi- experiment.
The drive system includes stepper motor 20, motor chassis 21, motor anchor bolt 22 and transmission shaft 19；The electricity
Machine chassis 21 is removably installed in 23 upside of the chassis by the motor anchor bolt 22；The stepper motor 20
It is fixed on 21 on the motor chassis；The central axes of the stepper motor 20 are consistent with the central axes of the pilot system；It is described
Transmission shaft 19 from 20 top of the stepper motor stretch out, and by 15 bottom circular of experiment cylinder body of the pilot system be open into
Enter pilot system；The top of the transmission shaft 19 is connected by the interior hexagonal card hole 24 of the pilot system with rotational shear disk 16
It connects；The transmission shaft 19 is hexagon with interior 24 coupling part of hexagonal card hole, and rest part is cylinder；The driving
System, which is provided by the transmission shaft 19 for experiment, continues controllable rotary power, the high speed shear for carrying out rock-soil material.
The pilot system include experiment cylinder cap 5, rigid backing plate 6, fixed shear disk 7, spin-ended slot 8, clevis bolt 9,
Clevis bolt hole 10, experiment cavity 11, safety air vavle 12, temperature sensor 13, baroceptor 14, experiment cylinder body 15, rotation
Shearing disk 16 and interior hexagonal card hole 24.
5 center of experiment cylinder cap is equipped with circular open, and size and the piston of the numerical control hydraulic jack 4 are mating；Institute
It states 15 bottom centre of experiment cylinder body and is equipped with circular open, size and the transmission shaft 19 are mating；The examination of the pilot system
It tests cylinder cap 5 and the experiment cylinder body 15 uses engineering thermal insulation ceramics；The experiment cylinder cap 5 and the experiment cylinder body 15 can pass through rotation
Turn to be threadedly coupled, constituted cylindrical cavity provides closed and relative insulation proving ring for high speed shear experiment after connection
Border；Along the circumferential direction decile offers 4 clevis bolt holes 10 to 15 outer wall of sample cylinder body.
The rotational shear disk 16 and fixed shear disk 7 are the cylindrical cavity component of one end open, for loading height
Ground sample used in fast shearing test；The rotational shear disk 7 is placed in 15 bottom of experiment cylinder body, and opening up bottom is set
There are the interior hexagonal card hole 24, size to match with the hexagonal prisms at 19 top of the transmission shaft；The fixed shear disk 7 is placed in institute
State experiment cylinder body 15 top, opening down and outer wall along the circumferential direction etc. is arranged with 4 spin-ended slots 8；The rotation is cut
Cutting disc 16 is consistent with the internal cavities shape of fixed shear disk 7, is top half cylindrical, lower half portion inscribe hexagonal prisms
Shape；The shape of 16 internal cavities of the fixed shear disk 7 and rotational shear disk, plays the clamping action to ground sample, in height
It in fast shear history, avoids producing relative sliding between ground sample and shearing disk, while in turn ensuring high speed shear experiment
Shear surface is circle so that shear surface comes into full contact with, and convenient for calculating the analysis of test result.
The experiment cavity 11 is opened in the experiment cylinder body 15, and position matches with ground sample shear surface；It is described
Safety air vavle 12, the temperature sensor 13 and the baroceptor 14 are mounted in the experiment cavity 11；The peace
The pressure in the pilot system of full air valve 12 passes through the discharge gas to outside the pilot system more than starting to work after setting value
It is more than specified value to prevent pressure in pilot system, ensures the safety of testing equipment and operating personnel；The temperature sensor
During 13 for monitoring high speed shear experiment in real time, the temperature in the experiment cavity 11；The baroceptor 15 is used for
In real time during monitoring high speed shear, the air pressure in the experiment cavity 11.
The spin-ended slot 8 is rectangular cavity, opens up position and tests the clevis bolt hole 10 on 15 outer wall of cylinder body
Match；The clevis bolt 9 can be inserted by the clevis bolt hole 10 in the spin-ended slot 8；The clevis bolt 9 is inserted
After entering the spin-ended slot 8, the fixed shear disk 7 is only capable of that vertical direction displacement occurs, and cannot rotate direction displacement.
The rigidity backing plate 6 is placed in 7 upside of the fixed shear disk, is carried for uniformly distributed and stable numerical control hydraulic jack 4
The Normal stress of confession.
Carry out the experiment of Rock And Soil high speed shear using the present invention to be as follows：
(1) sample is installed：The ground sample completed will be prepared to be respectively charged into fixed shear disk and rotational shear disk, in sample preparation
When ensure ground sample to be cut face smooth, and be higher by 1 ~ 1.5cm of shearing plate edge；
(2) experiment prepares：One layer of lubricating oil of side brush outside fixed shear disk and rotational shear disk；By rotational shear disk together with interior
The ground sample in portion is packed into test cylinder (jar) body, and fine rotation rotational shear disk makes transmission shaft be caught in the interior of rotational shear pan bottom
In hexagonal card hole；Fixed shear disk is packed into together with internal ground sample in test cylinder (jar) body, fine rotation fixed shear disk makes
Clevis bolt hole on the outside of spin-ended slot alignment test cylinder body screws in 4 clevis bolts；Rigid backing plate is placed in fixed shear disk
Upside；Screw sample cylinder cap；
(3) initial connection：Numerical control hydraulic jack, stepper motor, temperature sensor and baroceptor are connected to control dress
It sets, and initialization data；It gives numerical control hydraulic jack one smaller oil pressure, its piston is made to enter in pilot system and touches
Rigid backing plate；It gives stepper motor one pulse, makes transmission shaft that a step angle occur, to ensure that each connecting portion of instrument is close
Contact；
(4) load applies：According to the overlying gravity load of ground sample, normal direction is gradually applied using numerical control hydraulic jack and is answered
Power is to setting value；
(5) shearing test：Start stepper motor, the high speed shear for carrying out ground sample according to certain rotational shear speed is tried
It tests, the temperature in Simultaneous Monitoring record experiment cavity and atmospheric pressure value；
(6) it repeats to test：The rotational shear speed of different grades is adjusted, step is repeated（1）~（5）；
(7) data processing：It draws under the effect of different brackets rotational shear speed, the pass of shear time and the empty cavity temperature of experiment
It is the relation curve of curve and shear time and air pressure in experiment cavity.
Above is only a specific embodiment of the present invention, but the structure feature of the present invention is not limited thereto, Ren Heben
The technical staff in field in the field of the invention, made by changes or modifications all cover among protection scope of the present invention.
Claims (8)
1. a kind of rock-soil material high speed shear experimental rig, it is characterised in that：Including machine frame system, load resisting systems, drive system
And pilot system, the load resisting systems, the drive system and the pilot system are mounted in the machine frame system, described
Load resisting systems are installed on the top of the machine frame system, and stably and controllable normal direction lotus is provided for experiment by numerical control hydraulic jack
It carries, the drive system is installed on the bottom of the machine frame system, is provided for experiment by stepper motor and continues controllable rotation
Power, the pilot system are installed in the middle part of the machine frame system, and the heat-insulated experiment cylinder body with cylinder cap is used to be carried for experiment
For closed and relative insulation test space, the pilot system includes rotational shear disk and fixed shear disk, rotational shear disk
It is less than the cavity heights of experiment cylinder body with the height summation of fixed shear disk, the rotational shear disk is placed in the test cylinder (jar) body
Bottom and transmission axis connection with stepper motor, fixed shear disk is in above the station of rotational shear disk, very heavy by numerical control hydraulic
Top applies normal load to it；
The pilot system includes experiment cavity, and the experiment cavity is opened in test cylinder (jar) body, is in fixed shear disk and rotation
Turn share zone in the test cylinder (jar) body between shearing disk, be equipped in the experiment cavity safety air vavle, temperature sensor and
Baroceptor；The safety air vavle in the pilot system pressure be more than setting value after start to work；The temperature sensing
Device for monitoring the temperature during high speed shear is tested in the experiment cavity in real time；The baroceptor for supervising in real time
Air pressure during survey high speed shear in the experiment cavity.
2. a kind of rock-soil material high speed shear experimental rig as described in claim 1, it is characterised in that：The machine frame system packet
Include instrument top plate, rigid posts, chassis and rigid joist；The instrument top plate, the rigid posts and the instrument bottom
The vertical box-structure that plate is constituted is the load resisting systems, the drive system and the pilot system provide installation and operation sky
Between；Described rigidity joist one end is connected with the rigid posts, and the other end and the experiment cylinder body of the pilot system are connected, for institute
It states pilot system and stable support is provided.
3. a kind of rock-soil material high speed shear experimental rig as described in claim 1, it is characterised in that：The load resisting systems packet
Include jack chassis, jack anchor bolt and numerical control hydraulic jack；The central axes of the numerical control hydraulic jack with it is described
The central axes of pilot system are consistent；The piston of the numerical control hydraulic jack can be opened from the test cylinder (jar) tops of the pilot system
Mouth enters the pilot system.
4. a kind of rock-soil material high speed shear experimental rig as described in claim 1, it is characterised in that：The drive system packet
Include stepper motor and transmission shaft；The central axes of the stepper motor are consistent with the central axes of the pilot system；The transmission shaft
It is stretched out from the stepper motor top, and is open by the experiment cylinder body bottom circular of the pilot system and enters experiment system
System is connect with rotational shear disk.
5. a kind of rock-soil material high speed shear experimental rig as described in claim 1, it is characterised in that：The pilot system
It tests cylinder cap and experiment cylinder body uses engineering thermal insulation ceramics；The experiment cylinder cap and the experiment cylinder body can be connected by rotating screw thread
It connects, the cylindrical cavity constituted after connection provides closed and relative insulation experimental enviroment for high speed shear experiment；It is described
Along the circumferential direction decile offers several clevis bolt holes to sample outer wall of cylinder block, for being connect with positioning bolt and making positioning spiral shell
Bolt stretches into sample cylinder body, positions fixed shear disk, and the fixed shear disk is made to be only capable of that vertical direction displacement occurs and cannot send out
Raw direction of rotation displacement.
6. a kind of rock-soil material high speed shear experimental rig as described in claim 1, it is characterised in that：The rotational shear disk
It is placed in opening up and bottom and is provided with the connecting hole with the transmission axis connection of drive system；The fixed shear disk is placed in institute
It states at the top of experiment cylinder body, opening down and outer wall is along the circumferential direction equipped with several rotation stop slots, is used for and is inserted from experiment cylinder body
The positioning element entered carries out circumferential rotation stop cooperation, and the fixed shear disk is made to be only capable of that vertical direction displacement occurs and cannot revolve
Turn direction displacement；The rotational shear disk is consistent with the internal cavities shape of fixed shear disk, is top half cylinder
The bodily form, lower half portion have spline structure, for preventing sample relative to shearing disc spins.
7. a kind of rock-soil material high speed shear experimental rig as claimed in claim 5, it is characterised in that：Institute's rotational shear
Dish opening upward and bottom and is provided with connecting hole with the transmission axis connection of drive system；The fixed shear disk is placed in described
Test cylinder body at the top of, opening down and outer wall along the circumferential direction be equipped with several rotation stop slots, for and the positioning bolt into
Row circumferential direction rotation stop cooperation, makes the fixed shear disk be only capable of that vertical direction displacement occurs and cannot rotate direction displacement；Institute
It is consistent with the internal cavities shape of fixed shear disk to state rotational shear disk, is top half cylindrical, lower half portion
With spline structure, for preventing sample relative to shearing disc spins.
8. a kind of rock-soil material high speed shear test method, it is characterised in that：Include the following steps：
(1) sample is installed：The ground sample completed will be prepared to be respectively charged into fixed shear disk and rotational shear disk, in sample preparation
When ensure ground sample to be cut face smooth, and be higher by 1 ~ 1.5cm of fixed shear disk and rotational shear plate edge respectively；
(2) experiment prepares：One layer of lubricating oil of side brush outside fixed shear disk and rotational shear disk；By rotational shear disk together with interior
The ground sample in portion is packed into test cylinder (jar) body, and fine rotation rotational shear disk makes the transmission shaft of stepper motor be caught in rotational shear
In the interior hexagonal card hole of pan bottom；Fixed shear disk is packed into together with internal ground sample in test cylinder (jar) body, fine rotation is solid
Determine shearing disk, makes the clevis bolt hole on the outside of the spin-ended slot alignment test cylinder body of fixed shear disk outer surface, in clevis bolt
Hole screws in clevis bolt；Rigid backing plate is placed on the upside of fixed shear disk；Sample cylinder cap is screwed, sample cylinder body is closed；
(3) initial connection：Numerical control hydraulic jack, stepper motor, temperature sensor and baroceptor are connected to control dress
It sets, and initialization data；It gives numerical control hydraulic jack one smaller oil pressure, its piston is made to enter in pilot system and touches
Rigid backing plate in test applies normal load by rigid backing plate to fixed shear disk；It gives stepper motor one pulse, makes
One step angle occurs for transmission shaft, to ensure that each connecting portion of instrument is in close contact；
(4) Normal stress：According to the overlying gravity load of ground sample, normal direction is gradually applied using numerical control hydraulic jack and is answered
Power is to setting value；
(5) shearing test：Start stepper motor, the high speed shear for carrying out ground sample according to certain rotational shear speed is tried
It tests, the temperature in Simultaneous Monitoring record experiment cavity and atmospheric pressure value；
(6) it repeats to test：The rotational shear speed of different grades is adjusted, step is repeated（1）~（5）；
(7) data processing：It draws under the effect of different brackets rotational shear speed, the pass of shear time and the empty cavity temperature of experiment
It is the relation curve of curve and shear time and air pressure in experiment cavity.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095649A (en) * | 2010-12-29 | 2011-06-15 | 中国科学院武汉岩土力学研究所 | Direct shear testing device of saturated rock soil samples |
| CN106124343A (en) * | 2016-08-25 | 2016-11-16 | 绍兴文理学院 | The pilot system of THMC coupling during consideration rock joint shear |
| CN106769410A (en) * | 2016-12-20 | 2017-05-31 | 盐城工学院 | A kind of frozen soil rotation shearing device |
| CN107063894A (en) * | 2017-04-27 | 2017-08-18 | 中国水利水电科学研究院 | Shearing test device and the method that shearing test is carried out using described device |
| CN108020473A (en) * | 2018-01-03 | 2018-05-11 | 中国电建集团华东勘测设计研究院有限公司 | Consider the Rock And Soil cutting creep instrument and its test method of drying and watering cycle |
| CN208568496U (en) * | 2018-07-10 | 2019-03-01 | 中国电建集团华东勘测设计研究院有限公司 | A kind of rock-soil material high speed shear experimental rig |
-
2018
- 2018-07-10 CN CN201810748477.6A patent/CN108760535B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095649A (en) * | 2010-12-29 | 2011-06-15 | 中国科学院武汉岩土力学研究所 | Direct shear testing device of saturated rock soil samples |
| CN106124343A (en) * | 2016-08-25 | 2016-11-16 | 绍兴文理学院 | The pilot system of THMC coupling during consideration rock joint shear |
| CN106769410A (en) * | 2016-12-20 | 2017-05-31 | 盐城工学院 | A kind of frozen soil rotation shearing device |
| CN107063894A (en) * | 2017-04-27 | 2017-08-18 | 中国水利水电科学研究院 | Shearing test device and the method that shearing test is carried out using described device |
| CN108020473A (en) * | 2018-01-03 | 2018-05-11 | 中国电建集团华东勘测设计研究院有限公司 | Consider the Rock And Soil cutting creep instrument and its test method of drying and watering cycle |
| CN208568496U (en) * | 2018-07-10 | 2019-03-01 | 中国电建集团华东勘测设计研究院有限公司 | A kind of rock-soil material high speed shear experimental rig |
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