CN206523391U - Rock sample circulation dry and wet freezing-thawing simulation and damage deterioration test device - Google Patents
Rock sample circulation dry and wet freezing-thawing simulation and damage deterioration test device Download PDFInfo
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- CN206523391U CN206523391U CN201720188178.2U CN201720188178U CN206523391U CN 206523391 U CN206523391 U CN 206523391U CN 201720188178 U CN201720188178 U CN 201720188178U CN 206523391 U CN206523391 U CN 206523391U
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Abstract
The utility model discloses a kind of circulation dry and wet freezing-thawing simulation of rock sample and damage deterioration test device, it is characterised in that：The device includes vavuum pump and gas piping, water pump and liquid line, temperature control box：Sample chamber is placed radially with axially setting the radial and axial deformation-sensor of high temperature resistant respectively on rock sample, rock sample in temperature control box, and vavuum pump connection gas piping is simultaneously accessed at the top of sample chamber, and water pump one end connection liquid line simultaneously accesses sample chamber bottom；Level sensor is set on sealing cover body to be placed in sample chamber, and CT scan device is set on the outside of sample chamber.The utility model controls to realize many number of times circulating analogs that sample containing fissure rock forces the complex environments such as saturation, cooling frost and heating thaw in normal temperature to high temperature drying, vacuum using microcomputor program controller；Radial and axial strain data collection and record are carried out using microcomputer, damage deterioration during dry and wet Frozen-thawed cycled repeatedly tested using CT scan system.The device has automation, integral feature, and economic and environment-friendly, and human intervention is few, test job efficiency high.
Description
Technical field
The utility model is related to rock engineering technical field, is related to crack rock freeze thawing test specimen under simulation complicated environmental condition
Preparation and complex environment deterioration process measuring technology and method are damaged to rock sample physico-mechanical properties, more particularly to a kind of rock
Sample circulation drying, the simulation of saturation freezing-thawing and its damage deterioration test device.
Background technology
Rock And Soil in the earth's crust is long-term by slackings such as solar radiation, water (melting snow or ice), make Rock-soil Mass Structure and
Mechanical property is deteriorated.Drying and watering cycle and Frozen-thawed cycled are two kinds of slackings the most typical.Drying and watering cycle is Rock And Soil
Absorption of Medium air moisture or atmospheric precipitation and saturation, solar irradiation moisture evaporation or air-dried physical recycling process are absorbed, instead
Multiple drying and watering cycle can soften Mechanical property.Freeze thawing be rock-soil layer because temperature is down to zero it is following and rise to zero degree with
Above produce a kind of physico-geological function freezed and melted and phenomenon.Ice just produces larger ice-cleat to rock fracture both wings and made
With；And melt when temperature gos up, the pressure for acting on crack both wings is die-offed, the unloading of crack both wings.In freezing and melting repeatedly
During change, the crack of rock will expand, increase, so that stone is divided out, produce unfreezing.Cause this freeze thawing
The reason for destruction is due to constitute rock to freeze have different heat with the three-phase medium (water, air, stone containing aqualite) of melting state
Physical property, rock forming mineral particle is when temperature is reduced, and its volume is shunk, and ice is when temperature is reduced, and volume occurs swollen
Swollen (about 9%), rock forming mineral particle is in order to limit this expansion, because this frost-heave force is to act on mineral grain and rock is micro-
On this micro-scale of hole, therefore the presence of pore water and freeze-thaw cycles can produce deep shadow to the damage deterioration of rock
Ring.
As country in recent years is to western Devoting Major Efforts To Developing construction, many large-sized rock mass engineerings in high and cold mountain area, such as：North SinKiang
Area's hydroelectric project, qinghai-tibet railway engineering, West Line of South-North Water Transfer Project, Oil Pipeline construction etc., western numerous profound Tunnel Engineering,
All refer to the physical processes such as saturation drying, freezing and thawing and the ion exchange (chemical attack) of crack rock.Freeze rock mass
Major project harm has rock side slope because being corroded avalanche and landslide caused by by freeze-thaw weathering, and crack rock is being followed
Frost heave cracking, unstability in ring frozen-thaw process etc.；Caused engineering under high-temperature gradient after the buried High-geotemperature rock excavation in underground
Coffer mechanics property-deterioration.Its main mechanism is the rock containing the grown-in defects such as crack and joint, freezing, is melted and freeze thawing is followed
Under the conditions of ring, phase transformation and water-energy budget feature caused by its physico-mechanical properties macroscopic view basic change rule, internal water Cheng Bing, with
And the grand mesoscopic numerical test rule of rock caused by different temperatures history and different water cut (ice) state.Freeze to melt in cold district
Solution effect is main rock mass physical slacking, and the freeze-thaw damage of rock mass has become the master being commonly encountered in cold area's rock mass engineering project
Want one of disease.More than height above sea level 4000m Western Tianshan main peak is passed through in the most of section of such as Xinjiang Tianshan highway, and ultraviolet linchpin penetrates strong
It is strong, not only day and night temperature is big high and cold mountain area belonging to it and also season temperature difference great disparity (year thermal extremes weather up to 40.8 DEG C,
And year, extreme cold weather was then at -35.6 DEG C), the multigelation of annual cycles causes side slope exposed rock mass gradually loose
Broken, the geological disaster such as avalanche, landslide happens occasionally.In addition, the dynamics developed and built with the water conservancy and hydropower of Condition in North Xinjiang
Increase, the freeze thawing deterioration problem of water power Dam Site high precipitous rock slope is increasingly highlighted.Such as it is located at Altay Prefecture Burqin river to do
The QBT water-control projects of middle reaches valley section are flowed, the lowest temperature is -45 DEG C for many years for Dam Site, 36.6 DEG C of the highest temperature, extreme temperature
Difference is more than 80 DEG C.Again Southern Xinjiang applying T the Qi Reha tal fibre hydro country rock temperature difference be up to more than 90 degree, excavation after relate to
Rock body temperature the complex environment change such as reduces and produces bad effect to rock mass physical mechanical property water (upstream snow-broth) suddenly afterwards.
In the case of described above the deterioration of Rock Nature all refer to drying to saturation dry and wet alternately and repeatedly, in crack it is solid
The freezing and thawing that state mutually arrives liquid phase such as mutually converts at the simulation of complex environment, therefore, is attempted to rock that dry and wet is frozen repeatedly
The simulation and rock and its deterioration process for melting complex environment are studied.But when all the time, lacking one kind and can simulate long enough
Between and cycle-index under the integrated apparatus and method realized automatically of complex environment, it is difficult that the present invention can solve this technology
Topic.
CN201310544106.3 discloses a kind of experimental rig of simulation rock crack freeze thawing water-energy budget, and it includes splitting
Gap bottom plate, adjustable setting, warm end temperature control panel, water scale, freeze box, crack cladding plate, cold end water filling stopple, level
Instrument, crack, crack bottom plate are connected with crack cladding plate, and crack two ends set warm end tank and warm end tank, warm up end tank top
Crack cladding plate perforate, the steel bellow of connecting external diameter, outer wrap freeze box, outer end connection water scale, cold end tank
The crack cladding plate on top opens water injection hole, installs cold end water filling stopple, and crack bottom base plate is installed on adjustable setting, crack cladding plate
Level meter is installed in portion, is warmed up end bottom of gullet and is installed warm end temperature control panel.It is simple in construction, it is easy to process, it is easy to operate；It is controllable
Warm end and cold junction temperature, so as to realize that thermograde is controlled under frozen environment；Can not equality of temperature in accurate and visual reflection freezing process
Spend the transport flux of moisture in crack under gradient.
CN201210094416.5 discloses the real-time monitoring device and method of a kind of rock freezing-thawing damage destruction.The detection
Device includes left and right two devices, and left and right two devices are connected by screw bolt and nut, and each device is by packing groove and fixation
Device is constituted, and fixing device is provided with electrode jack, and electrode jack is connected by wire with metal mesh sheet, and metal mesh sheet is set
Bore ends are being installed, mounting hole is set on the securing means, and electrode jack is connected by electrode latch with wire, and sample two ends are put
In in mounting hole, sample is coated with rubber membrane.Methods described is carried out as follows：Sample processed, full water；Sample is installed and is put into
In freezing-thawing test machine, freezing-thawing test is carried out, ac impedance spectroscopy is determined：Analyze the changing rule of rock freezing-thawing damage destruction.This hair
It is bright that rock freezing-thawing damage feature can be tested on the basis of rock sample internal microstructure is not destroyed, while can also be tried in freeze thawing
Its damage and failure measurement is carried out during testing.
CN201220135001.3 discloses a kind of device for being used to measure rock freezing-thawing damage feature, including left and right two
It is connected at structure identical device, the end angle of left and right two devices by screw bolt and nut, each device is by packing groove and fixation
Device is constituted, and handle is connected with the upper lid of packing groove, and fixing device is provided with electrode jack, and electrode jack passes through wire and gold
Belong to mesh sheet to be connected, metal mesh sheet is arranged on installation bore ends, mounting hole sets on the securing means and connected with packing groove, electrode
Jack is connected by electrode latch with wire, and sample two ends are placed in mounting hole, and sample is coated with rubber membrane.The utility model
Rock freezing-thawing damage feature can be tested on the basis of rock sample internal microstructure is not destroyed, while can also be in freezing-thawing test
During carry out its damage and failure measurement.
CN201410848369.8 discloses a kind of device of rock triaxial strength under the conditions of overcritical carbon monoxide of measure,
It include triaxial test cabin, core clamping device, gas supply system, hydraulic oil confined pressure loading system and be provided with controller with
And the computer of experimental data collector, triaxial test is provided with heating collar, the inlet valve in connection triaxial test cabin on wall out of my cabin
And oil return valve, core clamping device is made up of core holding unit, air cushion, insulating self-adhesive band and thermal shrinkable sleeve, gas supply system
System is made up of the dioxide bottle, gas booster and air compressor that are sequentially connected with, and it also discloses assay method.
Above described application provides the monitoring or measurement apparatus of rock freezing-thawing damage and destruction.But for a long time, room
The interior saturation drying course tested to crack rock, freezing and thawing process are respective self-contained process, often simulate above procedure
A circulation at least need 6~7 days, take time and effort, and the cycle is long.For the temperature with summer in winter samsara reciprocal all the year round
Degree change and actual environment analog approximation are, it is necessary to which rock mass is simulated by the deterioration of complex environment in the large scale time, according to biography
It is unimaginable with manpower the time required to the vertical manually operated alternative of unification and independence.Accordingly, it would be desirable to which one kind can collect saturation drying course, jelly
The equipment and test device and method of the microcomputer automatic control of melting process is tied to realize that complex environment is simulated under systemic circulation number of times
And test.
The content of the invention
Problem to be solved in the utility model is the physical force after desk research crack rock is acted on by complicated external environment
Property-deterioration evaluation is learned to provide apparatus and method there is provided a kind of circulation dry and wet freezing-thawing simulation of rock sample and its damage deterioration test
Device.Sample containing fissure rock dries from normal temperature to high temperature, melt etc. each ring from unsaturation-saturation, cooling frost and heating
Plasticity volume deformation measurement is measured using high temperature resistant axial sensor and radial transducer in section, for asking for modeling indirectly
Property the bulk strain quantitatively characterizing complex loops during amount of damage evolutionary process, realize that the damage deterioration of rock sample freeze thawing is surveyed
Examination, equipment has the features such as integrated, automation and man-machine interaction, and economic and environment-friendly, reduces human intervention.
Another purpose of the present utility model is just to provide one kind and automatically controls rock sample circulation dry and wet freeze thawing by microcomputor program
Environmental simulation test, deformation test and computer under alternating temperature-changing in rock sample dry and wet Frozen-thawed cycled damage deterioration process are collected
Strain testing data, sample that can be in the sample chamber of hard radiation by CT scan device and nuclear magnetic resonance device complete monitoring,
The distributed intelligence and storage of pore structure or remaining irreducible water inside microsystem collection rock sample.
In order to solve the above technical problems, the technical solution adopted in the utility model is：A kind of rock sample circulates dry and wet freeze thawing ring
Simulate and damage deterioration test device in border, it is characterised in that：The device includes vavuum pump and gas piping, water pump and liquid line
Road, temperature control box；It is provided with the temperature control box in sample chamber, sample chamber and places rock sample, radial direction and axial difference on the rock sample
It is provided with high temperature resistant radial deformation sensor and axial deformation sensor, the temperature control box and sealing cover body is set, the sealing
Sealed interface is set on lid, and the radial deformation sensor and axial deformation sensor are respectively connected to sealed interface one, sealing
Interface two；
The vavuum pump connection gas piping is simultaneously accessed at the top of sample chamber, and water pump one end connection liquid line is simultaneously accessed
The bottom of sample chamber 13；
The sealing cover body is placed in sample chamber provided with level sensor；
CT scan device is provided with the outside of the sample chamber.
Preferably, being provided with threeway one on the gas piping of the vavuum pump connection, the threeway one is respectively communicated with examination
Gas piping at the top of specimen chamber top and liquid recovery tank, the sample chamber with liquid recovery tank is respectively mounted pneumatic operated valve one, gas
Dynamic valve two, the vavuum pump is passed through buffering gas tank.
Preferably, being provided with pneumatic operated valve four and threeway two, two points of the threeway on the liquid line of the water pump connection
Not Lian Tong sample chamber bottom and liquid recovery tank, pneumatic operated valve three is installed on the liquid line on the liquid recovery tank.
Preferably, the water pump other end connection threeway three, threeway three is respectively communicated with water supply tank and liquid recovery tank.
Preferably, the CT scan device is CT scanner or nuclear magnetic resonance device, and the independent microsystem of access.
Moreover, the temperature control box, vavuum pump, water pump, pneumatic operated valve one, pneumatic operated valve two, pneumatic operated valve three, pneumatic operated valve four, liquid level
Detector is respectively connected to microcomputor program controller, and the radial deformation sensor and axial deformation sensor pass through sealed interface
First, the access of sealed interface two computer data acquisition system.
Moreover, the sample chamber material uses ray or the transparent nonmetallic materials PEEK of electromagnetic wave.
The liquid line is superhigh molecular weight polyethylene pipe, and sample water can be normality water, weak acid or alkalescent water.
The utility model has the advantages and positive effects of：
1st, the simulation of the utility model rock sample circulation dry and wet freezing-thawing and damage deterioration test device, due to being put using rock sample
Put in temperature control box, high/low temperature constant temperature can be set, and access vavuum pump, water pump, realization vacuumizes-forced saturation-system to rock sample
Freeze the survey of the rock sample damage deterioration during knot-heating freeze thawing-vacuumizes the complex environment simulation of (process recycling) and is somebody's turn to do
Examination circulation dry and wet freezing-thawing simulated test, and sample chamber for can perspective material, be easy to CT scan device or NMR
Crack of the rock sample cross sections under different cycle-indexes in its section in sample chamber is monitored to germinate, connect and expansion process or rock
Water translocation process in sample body, microsystem writing scan data.
2nd, the simulation of the utility model rock sample circulation dry and wet freezing-thawing and damage deterioration test device, due to control case, vacuum
Pump, water pump, pneumatic operated valve, level sensor are respectively connected to microcomputor program controller, by the control interface of microcomputor program controller, if
Determine warm temperature and hold time, vacuum drawn and hold time, saturation time, cryogenic temperature and hold time, thaw temperature
And hold time, cycle-index, and control temperature control box refrigeration, heat and constant temperature, control pneumatic operated valve open and close, realization it is whole
Individual test process carries out whole collection by computer by the data in microcomputer automatic control, test process completely and post-processed.
3rd, the utility model is vacuumized using procedure auto-control, sets buffering gas tank to carry out vacuum deposit, pneumatic operated valve can
Vacuum negative pressure condition in program interface button or program automatic open close sample chamber, procedure auto-control rock sample saturation, this is done
Water or other saturated solutions can be used in wet frozen-thaw process, such as faintly acid or alkalescent saturated solution can thereby simulate soda acid
Property test of the solution to Rock Matrix chemical attack effect, when ion exchange or reaction occur for soluble salt etc. in solution and rock sample,
The filtrate after environmental simulation circulation can carry out the extraction of liquid sample and test analysis repeatedly, it is achieved thereby that rock sample heating, drying-take out
Vacuum-pressure saturation-refrigeration is freezed-heats the circulation environmental simulation melted and its damage deterioration test and the chemistry of fluid structurecoupling
Corrosion test process.
4th, the simulation of the utility model rock sample circulation dry and wet freezing-thawing and damage deterioration test device, due to the footpath on rock sample
To with being axially respectively arranged with resistant to elevated temperatures radial deformation sensor and axial deformation sensor, precisely test rock sample is dry in circulation
Strain variation in wet freezing-thawing alternation, and access computer data acquisition system progress Data Collection and processing.
5th, the utility model is due to using the circulation dry and wet freezing-thawing simulation of microcomputor program controller rock sample, computer data
Acquisition system gathers radial deformation sensor and axial deformation strain transducer data, and CT scan device is to radiolucent sample
The distributed intelligence of pore structure or remaining irreducible water inside the rock sample test piece of room is acquired and handled；The present invention has equipment
Integrated, microcomputer automatic is controlled, economic and environment-friendly, human intervention is few and realizes the uninterrupted simulation for circulating complex environment, to freeze
Melt the mechanical property research of damaged specimen there is provided the test material preparation under dry and wet Freezing-Melting Condition and its damage testing platform, more enter one
Step can simulate crack rock freezing-thawing damage Mechanism Study under chemical etching condition.
6th, the simulation of the utility model rock sample circulation dry and wet freezing-thawing and damage deterioration test device, because sample chamber is used
Nonmetallic high-strength non-metallic material PEEK makes, it is possible to achieve the ray or electromagnetic wave of CT scan device or nuclear magnetic resonance machine
Transmission to sample chamber, it is achieved thereby that the test specimen internal structure CT imagings or moisture hair during environmental simulation are distributed in migration
The visualization of process.
Brief description of the drawings
Fig. 1 is rock sample circulation dry and wet freezing-thawing simulation and damage deterioration test device schematic diagram.
Fig. 2 is rock sample circulation dry and wet freezing-thawing simulation and damage deterioration test frame principle figure.
In figure：Pneumatic operated valve 1, pneumatic operated valve 22, pneumatic operated valve 33, pneumatic operated valve 44, vavuum pump 5, buffering gas tank 6, threeway one
7th, temperature control box 8, scanner 9, sealing cover body 10, level sensor 11, rock sample 12, sample chamber 13, water pump 14, microcomputer 15, threeway
2 16, threeway 3 17, sealed interface 1, sealed interface 2 18 ', radial deformation sensor 19, axial deformation sensor 20, filter
Liquid recycling can 21, gas piping 22, water valve 23, water supply tank 24, liquid line 25.
Embodiment
In order to be better understood from the utility model, traveling one is entered to the utility model with reference to specific embodiments and the drawings
The description of step.
As shown in Figure 1, 2, the utility model provides a kind of rock sample circulation dry and wet freezing-thawing simulation and damage deterioration test
Device.The device is made up of vavuum pump 5 and gas piping 22, water pump 14 and liquid line 25, temperature control box 8 etc., and sample chamber 13 is put
In in temperature control box 8, temperature control box 8 is controlled by peripheral hardware cooling and warming, and radial direction and axial direction on rock sample 12, rock sample 12 are placed in sample chamber 13
It is respectively arranged with setting sealing cover body 10, test signal on radial deformation sensor 19 and axial deformation sensor 20, temperature control box 8
Line sets sealed interface 1, sealed interface 2 18 ', radial deformation inside and outside on sealed interface 18,18 ', sealing cover body 10
Sensor 19 and axial deformation sensor 20 use high temperature resistant sensor and respectively connection sealed interface 18, sealed interface 2 18 ',
To test the rock sample deformation test entirely circulated under bad border simulated conditions, radial deformation sensor 19 and axial deformation sensor
20 are respectively connected to computer data acquisition system by sealed interface 18, sealed interface 2 18 ' collects test data；Sealing cover body
10 are provided with level sensor 11, and level sensor 11 is placed in sample chamber 13 through sealing cover body 10, to detect in it
Portion's liquid lifting height.
Sample chamber 13 is can have an X-rayed, and the material of sample chamber 13 uses ray or the transparent nonmetallic materials PEEK of electromagnetic wave,
In the outside of temperature control box 8, the opposite of sample chamber 13 is placed with CT scan device 9, and scanner 9 can be CT scan system or nuclear magnetic resonance
Device simultaneously accesses independent microsystem.
Vavuum pump 5 connects and is provided with threeway 1 on gas piping 22, gas piping 22, and threeway 1 is respectively communicated with sample chamber
Pneumatic operated valve one is respectively mounted on the gas piping 22 of 13 tops and liquid recovery tank 21, the top of sample chamber 13 and liquid recovery tank 21
1st, pneumatic operated valve 22, vavuum pump 5 is passed through buffering gas tank 6；The one end of water pump 14 is connected to be provided with liquid line 25, liquid line 25
Pneumatic operated valve 44 and threeway 2 16, threeway 2 16 are respectively communicated with 21 in the bottom of sample chamber 13 and liquid closed cans, the liquid of liquid closed cans 21
Pneumatic operated valve three is installed on body pipeline 25；The other end of water pump 14 connects threeway 3 17, and the connection water supply tank 24 of threeway 3 17 and liquid are returned
Water valve 23 is installed on the bottom of closed cans 21, the liquid line 25 of water supply tank 24.
Temperature control box 8, vavuum pump 5, water pump 14, pneumatic operated valve 1, pneumatic operated valve 22, pneumatic operated valve 33, pneumatic operated valve 44, liquid level are visited
Survey device 11 and be respectively connected to microcomputor program controller 15, control it to be opened and closed using microcomputor program, and record test data.
Liquid line makes for superhigh molecular weight polyethylene pipe, and sample water can be normality water, weak acid or alkalescent water.
Using a kind of above-mentioned simulation of rock sample circulation dry and wet freezing-thawing and damage deterioration test device, specific implementation method step
It is rapid as follows：
Start sample chamber 13 in the microcomputor program controller main frame of enviromental cycle simulation, temperature control box 8 first and be put into rock sample 12,
Test rock sample specification：25 × 100mm of Φ, 50 × 100mm of Φ, 100 × 100mm of Φ, now pneumatic operated valve one, pneumatic operated valve two, pneumatic
Valve three, the valve of pneumatic operated valve four are in closed mode, open and pacify on vavuum pump 5, temperature control box 8, the power supply of supply-water pump 14, rock sample 12
Dress radial deformation sensor 19, axial deformation sensor 20 simultaneously access computer data acquisition system.
Open the entrance control interface of microcomputor program controller, setting pumpdown time length, saturation time length, refrigeration
Time length, temperature control box warm-up time length, cycle-index, temperature range：- 50 DEG C~125 DEG C, control program is performed automatically；
1) program automatic start heating drying system；By rock sample heating, drying, 100~125 DEG C of heating-up temperature is entered to rock sample
Row CT scan, radial deformation sensor and axial deformation sensor, when heating reaches setting time, heating system is closed in instruction
System, completes drying course；
2) procedure auto-control is vacuumized：Pneumatic operated valve one is opened, and vavuum pump is vacuumized to the sample chamber equipped with rock sample,
Reach the evacuated time of setting, vacuum：4~6 × 102Pa, pneumatic operated valve one is closed, and vavuum pump is closed；
3) procedure auto-control rock sample saturation；Programme-control whole system response delay 3 seconds, pneumatic operated valve four and water pump are simultaneously
Automatically open up, sample saturation water (or solution) is entered in sample chamber by liquid line, and level sensor is monitored, and will letter
Number microcomputor program controller is issued, when the saturation water (or solution) of entrance reaches the liquid level of setting, pneumatic operated valve four is closed automatically,
The abundant saturation of rock sample, when saturation reaches setting time, pneumatic operated valve three is opened, and water is put into liquid recovery tank, emptying sample chamber
Water, signal issued microcomputor program controller by level sensor 11, and sent instruction and closed pneumatic operated valve three, and starting water pump will
Liquid recovery tank reclaimed water is taken out or is evacuated in water supply tank；
4) program automatic start refrigeration system；Rock sample is freezed, CT scan is carried out to rock sample, when freezing reaches setting time
When, refrigeration system is closed in the instruction of microcomputor program controller, is then turned on heating system, when heating reaches setting time, instruction
Heating system is closed, frost and dissolving and heating heating process is completed；
5) procedure auto-control vacuum system；Pneumatic operated valve two and pneumatic operated valve San Tong method are automatically opened up, after freeze thawing in rock sample
Free state water or irreducible water evacuated, by rock sample water extract out, when reaching setting time, pneumatic operated valve two and pneumatic operated valve
San Tong method is closed；
6) automatic perform enters the second wheel circulation, until completing program setting cycle-index；During circulation, CT scanner or
The distributed intelligence of pore structure or remaining irreducible water inside scanning record rock sample is collected and is sent to microcomputer by nuclear magnetic resonance device
System, radial deformation sensor and axial deformation sensor are by strain measurement data transfer to computer data acquisition system.
Embodiment of the present utility model is described in detail above, but the content is only of the present utility model preferable
Embodiment, it is impossible to be considered as being used to limit practical range of the present utility model.All impartial changes made according to the utility model scope
Change and improvement etc., all should still be belonged within this patent covering scope.
Claims (8)
1. a kind of rock sample circulation dry and wet freezing-thawing simulation and damage deterioration test device, it is characterised in that：The device includes true
Empty pump and gas piping, water pump and liquid line, temperature control box；It is provided with the temperature control box in sample chamber, sample chamber and places rock
Radially with being axially respectively arranged with high temperature resistant radial deformation sensor and axial deformation sensor, the temperature on sample, the rock sample
Set on control case and sealed interface is set on sealing cover body, the sealing cover body, the radial deformation sensor and axial deformation are passed
Sensor is respectively connected to sealed interface one, sealed interface two；
The vavuum pump connection gas piping is simultaneously accessed at the top of sample chamber, and water pump one end connection liquid line simultaneously accesses sample
The bottom of room 13；
The sealing cover body is placed in sample chamber provided with level sensor；
CT scan device is provided with the outside of the sample chamber.
2. a kind of rock sample circulation dry and wet freezing-thawing simulation according to claim 1 and damage deterioration test device, it is special
Levy and be：Threeway one is installed on the gas piping of vavuum pump connection, the threeway one be respectively communicated with the top of sample chamber and
Gas piping at the top of liquid recovery tank, the sample chamber with liquid recovery tank is respectively mounted pneumatic operated valve one, pneumatic operated valve two, described
Vavuum pump is passed through buffering gas tank.
3. a kind of rock sample circulation dry and wet freezing-thawing simulation according to claim 1 and damage deterioration test device, it is special
Levy and be：Pneumatic operated valve four and threeway two are installed on the liquid line of the water pump connection, the threeway two is respectively communicated with sample
Pneumatic operated valve three is installed on the liquid line on room bottom and liquid recovery tank, the liquid recovery tank.
4. a kind of rock sample circulation dry and wet freezing-thawing simulation according to claim 1 and damage deterioration test device, it is special
Levy and be：The water pump other end connects threeway three, and threeway three is respectively communicated with water supply tank and liquid recovery tank.
5. a kind of rock sample circulation dry and wet freezing-thawing simulation according to claim 1 and damage deterioration test device, it is special
Levy and be：The CT scan device is CT scanner or nuclear magnetic resonance device, and accesses independent microsystem.
6. a kind of rock sample circulation dry and wet freezing-thawing simulation according to claim 1 and damage deterioration test device, it is special
Levy and be：The temperature control box, vavuum pump, water pump, pneumatic operated valve one, pneumatic operated valve two, pneumatic operated valve three, pneumatic operated valve four, level sensor
Microcomputor program controller is respectively connected to, the radial deformation sensor and axial deformation sensor pass through sealed interface one, sealing
Interface two accesses computer data acquisition system.
7. a kind of rock sample circulation dry and wet freezing-thawing simulation according to claim 1 and damage deterioration test device, it is special
Levy and be：The sample chamber material uses ray or the transparent nonmetallic materials PEEK of electromagnetic wave.
8. a kind of rock sample circulation dry and wet freezing-thawing simulation according to claim 1 and damage deterioration test device, it is special
Levy and be：The liquid line is superhigh molecular weight polyethylene pipe, and sample water can be normality water, weak acid or alkalescent water.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720188178.2U CN206523391U (en) | 2017-02-24 | 2017-02-24 | Rock sample circulation dry and wet freezing-thawing simulation and damage deterioration test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720188178.2U CN206523391U (en) | 2017-02-24 | 2017-02-24 | Rock sample circulation dry and wet freezing-thawing simulation and damage deterioration test device |
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| CN206523391U true CN206523391U (en) | 2017-09-26 |
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| CN201720188178.2U Expired - Fee Related CN206523391U (en) | 2017-02-24 | 2017-02-24 | Rock sample circulation dry and wet freezing-thawing simulation and damage deterioration test device |
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| CN106680129A (en) * | 2017-02-24 | 2017-05-17 | 新华水力发电有限公司 | Dry-wet-freeze-thaw cycle environment simulation and damage and deterioration test device and method for rock sample |
| CN108287128A (en) * | 2018-01-29 | 2018-07-17 | 中国科学院武汉岩土力学研究所 | A kind of ground drying and watering cycle permeability measurement systems and its method |
| CN110082508A (en) * | 2019-06-04 | 2019-08-02 | 中国科学院寒区旱区环境与工程研究所 | The swollen characteristic test apparatus of salt marsh earth salt under the conditions of a kind of deflection constraint |
| CN110285865A (en) * | 2018-03-19 | 2019-09-27 | 中国石油天然气股份有限公司 | Tolerance simulation system and method are lost in the location of the coring procedure of shale scene |
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