CN109470537A - A kind of novel three axis sample layering preparation facilities - Google Patents
A kind of novel three axis sample layering preparation facilities Download PDFInfo
- Publication number
- CN109470537A CN109470537A CN201811560270.2A CN201811560270A CN109470537A CN 109470537 A CN109470537 A CN 109470537A CN 201811560270 A CN201811560270 A CN 201811560270A CN 109470537 A CN109470537 A CN 109470537A
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- China
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- sample
- sample component
- preparation facilities
- fixation member
- pressing member
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of novel three axis samples to be layered preparation facilities.The device is made of five parts, respectively fixation member, sample component, collet, widening parts and pressing member.Wherein sample component is made of two petals, elastic tape；Pressing member includes the different T-type component of four length.Wherein all test blocks can remove easily, easy to clean and arrangement.Whole device is using high-intensitive stainless steel material production.Apparatus of the present invention material cheap and simple, easy to operate, easy grasp can be produced and observe its microstructure change for microscopic tests such as nuclear magnetic resonance, pressure mercury, electron-microscope scannings.
Description
Technical field
The invention belongs to geotechnical engineering test and engineering application technical field, be one kind can quickly, easily produce three
Sample in shaft experiment reduces the experimental rig and its application method of human factor.
Background technique
Indoors test in, the mechanical property Quality Research for soil sample be it is necessary, for inquire into soil sample mechanical property
Matter and its Soil Microstructure, pore water pressure, failure mechanism etc., scholars actively carry out Study on Triaxial Tests, existing at present
The three axis sample producing methods deposited are generally divided into two kinds；The first is to hit reality, major defect according to the method layering of test handbook
It is that human factor is bigger during sample preparation, it is more difficult to control the flatness at final sample both ends, and bottom end sample is easy to squeeze out
Soil sample.Second is to be obtained referring to test handbook using layering pressure-like, is also presently the most widely used, but this method
Device does not allow easy mold release in last sample, need to will cause to disturb to sample in this process by external force, changes manipulated soil
Property so that causing test error.
Based on above analysis, seek one kind and can reduce the triaxial test sample preparation device of human factor influence to be urgent
Demand the shortcomings that for appeal method for making sample, in conjunction with its advantage, need to design a kind of novel three axis sample layering preparation facilities,
The advantages of device need to have be during sample preparation human factor influence it is smaller and quick, convenient, do not need by external force into
Row demoulding.
Summary of the invention
The purpose of the present invention is to provide a kind of novel three axis samples to be layered preparation facilities, to overcome in above-mentioned background technique
The influence of human factor can be greatly reduced in the problem of proposition.
The present invention is implemented as follows: a kind of novel three axis sample layering preparation facilities (turning), main five parts are formed:
Fixation member, sample component, widening parts, collet, pressing member.Sample component is divided into two valves, convenient to take off after sample is made
Mould, sample component outer surface are uniformly distributed several grooves, and the circular rubber circle for covering 3mm line footpath (can be according to being produced
The dry density of sample is replaced)；This design can prevent upon application of pressure, and fixation member and sample component block or sample needs
It wants external force to release phenomenon, the lateral pressure of fixation member and sample component can be slowed down.
Fixation member is also classified into two valves, is linked to be entirety by the screw of 6 M1.6, integral strength meets the mistake of entire sample preparation
The lateral pressure generated in journey makes the three axis samples for obtaining sample standard for fixing sample component.Expanding unit can cover
Enter the top to fixation member, is mainly used for when soil sample is more to facilitate threading soil sample.Collet be for holding fixation member,
To prevent sliding or soil sample of the sample in pressure-like process from squeezing out.Pressing member is put into from the top of fixation member, is passed through
Jack applies pressure, according to the different compacting numbers of plies, with the pressing member of corresponding number.
Sample component alignment is first packaged into sufficient amount of elastic tape, is put on collet, then fixation member is passed through into screw
Fixed mode is installed, and sample component and fixation member upper and lower end face are flushed；It, can be directly from solid when the soil sample number of plies is lower
Determine section upper addition soil sample and be put into pressing member with the smooth specimen surface of scraper, passes through jack and apply pressure, keep 1
After minute, the filling for carrying out next layer of soil sample, and shaving are taken out, makes two layers of front and back soil sample without obvious layering；When added soil sample is super
Fixation member is crossed, aforesaid operations need to be repeated plus widening parts, another effect is to reinforce fixation member top, prevents from laterally pressing
Power causes sample preparation to fail.Until when taking whole sample, first removing collet, it is put on smooth ground, and pads upper filter paper, secondly twists
The screw for opening fixation member will not block between fixation member and sample component because there is the presence of elastic tape, finally remove sample
Elastic tape outside component, it is bad to be inserted in steel, it can it is spare to be put in three axis saturators vacuum saturation, can be used for being made various institutes
The sample needed, such as Mercury injection test, nmr experiments, electron-microscope scanning.
The present invention improves three axis sample preparation devices in existing test, by sample component, fixation member and pressing member,
The problem of overcoming the preparation of existing three axis sample, has made some improvements, it may be assumed that
1, sample both ends of the surface out-of-flatness made from traditional sample preparation device (the first opposite method of preparing sample), and every layer is applied
The power that adds is different, leads to the dry densities of different interlayers difference, often exists multi-hit or owe the case where hitting, to be met
It is required that sample, spent time, energy are larger.
2, traditional sample preparation device (opposite second of method of preparing sample) needs outer push there are that can block when sampling
Sample out, this process cause great disturbance to sample.
3, sample preparation device set by the present invention, makes resulting soil sample meet the requirement of triaxial test.
4, the elastic tape and fixed device that the present invention adds, can prevent sample in sample making course to be deformed.
Detailed description of the invention
Fig. 1 is sample preparation device schematic diagram of the invention；
Wherein: 1- widening parts 2- fixation member valve 3- fixation member valve 4- elastic tape groove 5- sample component valve
6- sample component valve 7-M1.6 screw 8- collet
Fig. 2 is pressing member of the invention
Wherein: 9-40mm pressing member 10-60mm pressing member 11-80mm pressing member 12-100mm pressing member
Fig. 3 is number 2,3 (fixation member) three-view diagram；
Fig. 4 is number 5,6 (sample component) three-view diagram；
Fig. 5 is number 1 (widening parts) three-view diagram；
Fig. 6 is number 8 (collet) three-view diagram；
Fig. 7 is number 9-40mm pressing member three-view diagram；
Fig. 8 is number 10-60mm pressing member three-view diagram；
Fig. 9 is number 11-80mm pressing member three-view diagram；
Figure 10 is number 12-100mm pressing member three-view diagram.
Specific embodiment
Below in conjunction with attached drawing, the preferred embodiments of the present invention will be described in detail, and above-mentioned combination attached drawing is to of the invention
Specific embodiment is described, so that advantages and features of the invention can be easier to be readily appreciated by one skilled in the art, and gives
The size (present apparatus can be increased in size in original basis according to test requirements document) for having gone out related device, thus to protection of the invention
Range is more clearly defined.Based on the technical solutions of the present invention, those skilled in the art need to pay
The various modifications or changes that creative work can be made are still within protection scope of the present invention.
Specific method:
1, the preparation of soil sample
Sieve takes the soil sample of test requirements document, is dried for standby.
2, device is installed
(1) sample component coats vaseline, is aligned sample component 5 and 6, elastic tape is inserted at sample component groove 4, with
Two lobe parts do not shake, it is desirable that end is concordant.
(2) fixed device 2 and 3 is aligned, and the sample component connected in (1) is put in centre, pass through 7 i.e. 6
The screw of M1.6 is linked to be entirety, it is desirable that end is concordant.
(3) pedestal 8 is put again, and four layers at this moment can be divided to add soil sample inward.First layer: whole with scraper after adding soil sample
Grading surface is put into pressing member 12, applies pressure with the jack of 10t, and after holding 1 minute, release is taken out.
(4) second layer: before soil sample is added, first carrying out shaving to it, soil sample is being added, same scraper leveling is put into
Pressing member 11 applies pressure with the jack of 10t, and after holding 1 minute, release is taken out.
(5) third layer repeats (4), uses pressing member 10；4th layer: putting on widening parts 1, repeat (4), but use and add
Splenium part 9.
(6) it after the completion of the compacting of the last layer sample, carries out tearing sample open, first removes widening parts 1, then lay down screw 7, take away bottom
Support 8, because there is elastic tape buffering in centre, it is easy to remove fixed device 2 and 3, it is full that last sample component can be directly used for three axis
With device saturation in case stand-by.
Note: being to be related to some details, such as filter paper, vaseline etc. for influencing test in installation.
Claims (2)
1. a kind of novel three axis sample is layered preparation facilities, it is characterised in that the preparation facilities is made of following five parts:
Fixation member, sample component, widening parts, collet, pressing member.
2. preparation facilities according to claim 1, which is characterized in that the sample component is divided into two valves, convenient to try
Sample demoulds after being made, and sample component outer surface is uniformly distributed several grooves, and the circular rubber circle for covering 3mm line footpath (can
According to the made dry density replacement materialsed)；This design can prevent upon application of pressure, and fixation member and sample component block
Or sample needs external force to release phenomenon, can slow down the lateral pressure of fixation member and sample component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811560270.2A CN109470537A (en) | 2018-12-19 | 2018-12-19 | A kind of novel three axis sample layering preparation facilities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811560270.2A CN109470537A (en) | 2018-12-19 | 2018-12-19 | A kind of novel three axis sample layering preparation facilities |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109470537A true CN109470537A (en) | 2019-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811560270.2A Pending CN109470537A (en) | 2018-12-19 | 2018-12-19 | A kind of novel three axis sample layering preparation facilities |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109883799A (en) * | 2019-04-04 | 2019-06-14 | 江苏科技大学 | A kind of multi-functional saturator of the cylinder sample of triaxial test |
| CN113125221A (en) * | 2021-04-08 | 2021-07-16 | 昆明理工大学 | Triaxial test sample preparation device and sample preparation method thereof |
| CN114414320A (en) * | 2021-12-01 | 2022-04-29 | 上海工程技术大学 | Static pressure rapid sample preparation device for triaxial test, sample preparation method and demolding method |
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| CN103018085A (en) * | 2012-12-11 | 2013-04-03 | 中南大学 | Method and device for preparing silty soil triaxial-test test sample |
| CN103033406A (en) * | 2012-12-26 | 2013-04-10 | 上海交通大学 | Sample preparation device for remoulded soil with different stress ratios |
| CN103048174A (en) * | 2012-12-21 | 2013-04-17 | 大连理工大学 | Triaxial sample preparation device for low-liquid limit silty soil and sample preparation method |
| CN104374624A (en) * | 2014-11-19 | 2015-02-25 | 北京工业大学 | Geotechnical triaxial test sample preparation split round mold and sample preparation method |
| CN105181416A (en) * | 2015-10-12 | 2015-12-23 | 北京工业大学 | High-visualization geotechnical triaxial test sample device and manufacturing method |
| CN205719695U (en) * | 2016-05-10 | 2016-11-23 | 中国矿业大学 | A kind of laboratory is from retracting soil die device |
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2018
- 2018-12-19 CN CN201811560270.2A patent/CN109470537A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103018085A (en) * | 2012-12-11 | 2013-04-03 | 中南大学 | Method and device for preparing silty soil triaxial-test test sample |
| CN103048174A (en) * | 2012-12-21 | 2013-04-17 | 大连理工大学 | Triaxial sample preparation device for low-liquid limit silty soil and sample preparation method |
| CN103033406A (en) * | 2012-12-26 | 2013-04-10 | 上海交通大学 | Sample preparation device for remoulded soil with different stress ratios |
| CN104374624A (en) * | 2014-11-19 | 2015-02-25 | 北京工业大学 | Geotechnical triaxial test sample preparation split round mold and sample preparation method |
| CN105181416A (en) * | 2015-10-12 | 2015-12-23 | 北京工业大学 | High-visualization geotechnical triaxial test sample device and manufacturing method |
| CN205719695U (en) * | 2016-05-10 | 2016-11-23 | 中国矿业大学 | A kind of laboratory is from retracting soil die device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109883799A (en) * | 2019-04-04 | 2019-06-14 | 江苏科技大学 | A kind of multi-functional saturator of the cylinder sample of triaxial test |
| CN113125221A (en) * | 2021-04-08 | 2021-07-16 | 昆明理工大学 | Triaxial test sample preparation device and sample preparation method thereof |
| CN114414320A (en) * | 2021-12-01 | 2022-04-29 | 上海工程技术大学 | Static pressure rapid sample preparation device for triaxial test, sample preparation method and demolding method |
| CN114414320B (en) * | 2021-12-01 | 2023-11-24 | 上海工程技术大学 | Static pressure rapid sample preparation device for triaxial test, sample preparation method and demolding method |
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Application publication date: 20190315 |
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