CN107389408A - A kind of triaxial test sample preparation device and method for making sample - Google Patents
A kind of triaxial test sample preparation device and method for making sample Download PDFInfo
- Publication number
- CN107389408A CN107389408A CN201710704988.3A CN201710704988A CN107389408A CN 107389408 A CN107389408 A CN 107389408A CN 201710704988 A CN201710704988 A CN 201710704988A CN 107389408 A CN107389408 A CN 107389408A
- Authority
- CN
- China
- Prior art keywords
- petal
- sample
- sample preparation
- demoulding
- top cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
Classifications
-
- 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
-
- 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
- G01N1/36—Embedding or analogous mounting of samples
-
- 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
- G01N1/36—Embedding or analogous mounting of samples
- G01N2001/366—Moulds; Demoulding
Abstract
A kind of triaxial test sample preparation device, including buckling die and the demoulding, it is characterised in that：Left petal section is semicircular configuration, necking down petal is respectively equipped with the upper surface of left petal and lower surface, the overall diameter of necking down petal is less than left petal, the axially disposed rectilinear flange in one side, the axially disposed linear pattern groove in another side in the docking plane of left petal.The structure of right petal is identical with left petal, and right petal and left petal are fastened and connected.Lock ring is set in the upper end necking down petal of left petal and right petal, and gasket ring is installed on the upper surface of left petal and right petal, in the centre bore of the lower end insertion gasket ring of top cover.The structure of lower fastening assembly and upper fastening assembly completely just as and be symmetrically installed in the lower end of left petal and right petal.Shoulder hole is offered in demoulding cylinder, the external diameter of cushion block, the minimum diameter of shoulder hole are identical with the internal diameter of left petal.Realize that soil sample both ends and entirety are reached overall sample preparation compactness uniformity requirements by identical pressure.
Description
Technical field
It is more particularly to a kind of to be applied to national standard and the geotechnique's examination of the axle of English target routine intravenous three the invention belongs to sample production field
Test sample preparation, dynamic triaxial tests sample preparation and consolidation test and be disposably compacted into sample sample preparation device and method.
Background technology
Static triarial test, dynamic triaxial tests and consolidation test are the important test methods in Geotechnical Engineering field, are that measure is each
The Main Means of mechanical property under class soil body different stress, parameter acquired by experiment are that engineering slope stability, ground are held
Carry the important evidence for the analyses such as power, the soil body be qualitative.Therefore the quality of sample making largely affects the quality of test parameters,
So as to affect engineering safety.It is difficult the homogeneity for controlling compactness that real sample preparation method sample quality is hit in traditional layering, is also easy to produce
Lamination；Or some method for making sample need to invert from other end secondary compaction and also easily produce non-uniform phenomenon.
The content of the invention
The present invention is to be difficult to control sample quality to overcome existing soil test to be layered sample preparation method, as samples overall compactness
The sample preparation defects such as uneven, sample severe delamination phenomenon and part method for making sample are inconsistent to sample both ends compaction and improve
Sample preparation device and method.
To reach above-mentioned purpose, the technical essential of this programme is as follows：
A kind of triaxial test sample preparation device, including buckling die and the demoulding, it is characterised in that：
Buckling die includes petal component, upper fastening assembly and lower fastening assembly.
Petal component includes left petal and right petal, and left petal section is semicircular configuration, in the upper surface of left petal and
Necking down petal is respectively equipped with lower surface, the overall diameter of necking down petal is less than left petal, in the docking plane of left petal on one side
Axially disposed rectilinear flange, the axially disposed linear pattern groove in another side.
The structure of right petal is identical with left petal, and right petal and left petal are fastened and connected.
Upper fastening assembly includes lock ring, gasket ring and top cover, and lock ring is set in the upper end necking down petal of left petal and right petal
On, gasket ring is installed on the upper surface of left petal and right petal, in the centre bore of the lower end insertion gasket ring of top cover.
The structure of lower fastening assembly and upper fastening assembly completely just as and be symmetrically installed in the lower end of left petal and right petal.
The demoulding includes cushion block and demoulding cylinder, and shoulder hole, the external diameter of cushion block, the minimum diameter of shoulder hole are offered in demoulding cylinder
It is identical with the internal diameter of left petal.
Above-mentioned top cover includes end cap and is fixed on the insertion body of end cap lower end, end cap and the concentric setting of insertion body and is
One-shot forming overall structure.
Screwed hole is offered along the both ends outer wall of a diameter on lock ring, in left petal and the necking down petal of right valve
And blind hole is offered respectively on the correspondence position of screwed hole.A bolt is screwed in each screwed hole.
A diameter of 30-150mm of left petal and right petal.The insertion body height * of its height=left petal internal diameter * 2+ top covers
2。
Above-mentioned gasket ring section is semicircle or circular.Grommet height is fewer 5mm than the height of insertion body on top cover.Gasket ring makes top
Displacement when covering past intermediate pressure is the same, so as to ensure that the compaction that the soil near both ends is subject to is identical,
Left petal height-insertion body height * 2=sample free heights, sample free height are 2-2.5 times of left petal internal diameter.
A kind of triaxial test method for making sample, it is characterised in that：Comprise the following steps：
Two petal components are confined to together by two lock rings from upper and lower ends, and gasket ring and top cover are installed in the bottom of two petal components,
Top is installed by gasket ring.After all soil samples are disposably uniformly added into the sample preparation device, top press-in top cover realizes preliminary consolidation, then
After upper and lower two gasket rings are taken down, the displacement compacted soil sample such as both ends top cover, so as to realize soil sample both ends and entirety by phase
Same pressure reaches overall sample preparation compactness uniformity requirements, and does not produce Secondary Disturbance, improves the quality level of sample preparation.
The top cover of lower end is taken down during the demoulding, sample bottom will be placed into the isodiametric demoulding cushion block of petal component, with thousand
Jin top top is propped up, then takes down upper end top cover, while a piece of demoulding cushion block is put at the top of sample, and demoulding cylinder is set into die top
Push up reaction frame head piece, start slowly to start jack, by the gradual ejection die of soil sample into demoulding cylinder it is stand-by, avoid out
The disintegration of mould snap sample destroys.
It the advantage is that：The present apparatus overcomes existing soil test layering sample preparation method and is difficult to control sample quality, as samples
The sample preparations such as overall compactness is uneven, sample severe delamination phenomenon and part method for making sample are inconsistent to sample both ends compaction
Defect.The disintegration of depanning snap sample is avoided to destroy.So as to realize that soil sample both ends and entirety are reached overall by identical pressure
Sample preparation compactness uniformity requirements, and Secondary Disturbance is not produced, improve the quality level of sample preparation.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the top view of petal component.
Fig. 3 is Fig. 1 A-A sectional view.
Fig. 4 is cushion block and the structural representation of demoulding cylinder.
Fig. 5 is the structural representation before sample compression.
Fig. 6 is the structural representation after sample compression.
Embodiment
A kind of triaxial test sample preparation device, including buckling die and the demoulding, it is characterised in that：
Buckling die includes petal component, upper fastening assembly and lower fastening assembly.
Petal component includes left petal 4 and right petal 5, and the left section of petal 4 is semicircular configuration, in the upper end of left petal 4
Necking down petal 11 is respectively equipped with face and lower surface, the overall diameter of necking down petal 11 is less than left petal 4, in the docking of left petal 4
The axially disposed rectilinear flange 9 in one side, the axially disposed linear pattern groove 10 in another side in plane.
The structure of right petal 5 is identical with left petal 4, and right petal 5 and left petal 4 are fastened and connected.
Upper fastening assembly includes lock ring 3, gasket ring 2 and top cover, and lock ring 3 is set in the upper end necking down of left petal 4 and right petal 5
In petal 11, gasket ring 2 is installed on the upper surface of left petal 4 and right petal 5, in the centre bore of the lower end insertion gasket ring 2 of top cover.
The structure of lower fastening assembly and upper fastening assembly completely just as and be symmetrically installed under left petal 4 and right petal 5
End.
The demoulding includes cushion block 13 and demoulding cylinder 14, and shoulder hole 15, external diameter, the shoulder hole of cushion block 13 are offered in demoulding cylinder 14
15 minimum diameter is identical with the internal diameter of left petal.
Above-mentioned top cover includes end cap 1 and is fixed on the insertion body 12 of the lower end of end cap 1, end cap 1 and insertion body 12 is concentric sets
Put and be one-shot forming overall structure.
Screwed hole 6 is offered along the both ends outer wall of a diameter on lock ring 3, in left petal 4 and the necking down valve of right valve 5
Blind hole 7 is offered respectively on mould 11 and on the correspondence position of screwed hole 6.A bolt 8 is screwed in each screwed hole 6.
A diameter of 30-150mm of left petal 4 and right petal 5.The insertion body 12 of the internal diameter * 2+ top covers of its height=left petal 4
Height * 2.
The above-mentioned section of gasket ring 2 is semicircle or circular.The height of gasket ring 2 is fewer 5mm than the height of insertion body on top cover 12.Gasket ring
2 make top cover the same toward displacement during intermediate pressure, so as to ensure that the compaction that the soil near both ends is subject to is identical,
The left height * 2=sample free heights of 4 height-insertion body of petal 12, sample free height are 2-2.5 times of the left internal diameter of petal 4.
A kind of triaxial test method for making sample, it is characterised in that：Comprise the following steps：
Two petal components are confined to together by two lock rings 3 from upper and lower ends, and gasket ring 2 and top are installed in the bottom of two petal components
Lid, top installation gasket ring 2.After all soil samples are disposably uniformly added into the sample preparation device, top press-in top cover realizes preliminary pressure
In fact, after then upper and lower two gasket rings 2 are taken down, the displacement compacted soil sample such as both ends top cover, so as to realize soil sample both ends and entirety
Reached overall sample preparation compactness uniformity requirements by identical pressure, and do not produce Secondary Disturbance, improve the quality of sample preparation
It is horizontal.
The top cover of lower end is taken down during the demoulding, sample bottom will be placed into the isodiametric demoulding cushion block 13 of petal component, used
Propped up at the top of jack, then take down upper end top cover, while a piece of demoulding cushion block 13 is put at the top of sample, demoulding cylinder 14 is set to mould
Reaction frame head piece is arrived on tool top top, starts slowly to start jack, the gradual ejection die of soil sample is treated into demoulding cylinder 14
With, avoid depanning snap sample disintegration destroy.
Claims (7)
1. a kind of triaxial test sample preparation device, including buckling die and the demoulding, it is characterised in that：
Buckling die includes petal component, upper fastening assembly and lower fastening assembly；
Petal component includes left petal (4) and right petal (5), and left petal (4) section is semicircular configuration, in left petal (4)
Necking down petal (11) is respectively equipped with upper surface and lower surface, the overall diameter of necking down petal (11) is less than left petal (4), in left valve
The axially disposed rectilinear flange (9) in one side, the axially disposed linear pattern groove (10) in another side in the docking plane of mould (4)；
The structure of right petal (5) is identical with left petal (4), and right petal (5) and left petal (4) are fastened and connected；
Upper fastening assembly includes lock ring (3), gasket ring (2) and top cover, and lock ring (3) is set in the upper of left petal (4) and right petal (5)
Hold in necking down petal (11), gasket ring (2) is installed on the upper surface of left petal (4) and right petal (5), the lower end insertion pad of top cover
In the centre bore of ring (2)；
The structure of lower fastening assembly and upper fastening assembly completely just as and be symmetrically installed under left petal (4) and right petal (5)
End；
The demoulding includes cushion block (13) and demoulding cylinder (14), and demoulding cylinder (14) is interior to offer shoulder hole (15), the external diameter of cushion block (13),
The minimum diameter of shoulder hole (15) is identical with the internal diameter of left petal.
A kind of 2. triaxial test sample preparation device according to claim 1, it is characterised in that：Above-mentioned top cover includes end cap (1)
With the insertion body (12) for being fixed on end cap (1) lower end, end cap (1) and insertion body (12) it is concentric set and for one-shot forming it is whole
Body structure.
A kind of 3. triaxial test sample preparation device according to claim 1, it is characterised in that：Along a diameter on lock ring (3)
Both ends outer wall on offer screwed hole (6), in left petal (4) and the necking down petal (11) of right valve (5) and be located at screw thread
Blind hole (7) is offered on the correspondence position in hole (6) respectively；A bolt (8) is screwed in each screwed hole (6).
A kind of 4. triaxial test sample preparation device according to claim 1 or 2, it is characterised in that：Left petal (4) and right petal
(5) a diameter of 30-150mm；Insertion body (12) height * 2 of its height=left petal (4) internal diameter * 2+ top covers.
A kind of 5. triaxial test sample preparation device according to claim 1 or 2, it is characterised in that：Above-mentioned gasket ring (2) section is
It is semicircle or circular；Height of the gasket ring (2) highly than insertion body on top cover (12) is few 5mm.
A kind of 6. triaxial test sample preparation device according to claim 1 or 2, it is characterised in that：Left petal (4) height-insert
Enter body (12) height * 2=sample free heights, sample free height is 2-2.5 times of left petal (4) internal diameter.
A kind of 7. triaxial test method for making sample, it is characterised in that：Comprise the following steps：
Two petal components are confined to together by two lock rings (3) from upper and lower ends, the bottom installation gasket ring (2) of two petal components and
Top cover, top installation gasket ring (2)；After all soil samples are disposably uniformly added into the sample preparation device, top press-in top cover is realized just
Step compacting, then after upper and lower two gasket rings (2) are taken down, the displacement compacted soil sample such as both ends top cover, so as to realize soil sample both ends
And entirety is reached overall sample preparation compactness uniformity requirements by identical pressure, and Secondary Disturbance is not produced, improve sample preparation
Quality level；
The top cover of lower end is taken down during the demoulding, sample bottom will be placed into the isodiametric demoulding cushion block (13) of petal component, with thousand
Jin top top is propped up, then takes down upper end top cover, while a piece of demoulding cushion block (13) is put at the top of sample, and demoulding cylinder (14) is set to
Die top top starts slowly to start jack, by the gradual ejection die of soil sample to demoulding cylinder (14) to reaction frame head piece
In it is stand-by, avoid depanning snap sample disintegration destroy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710704988.3A CN107389408A (en) | 2017-08-17 | 2017-08-17 | A kind of triaxial test sample preparation device and method for making sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710704988.3A CN107389408A (en) | 2017-08-17 | 2017-08-17 | A kind of triaxial test sample preparation device and method for making sample |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107389408A true CN107389408A (en) | 2017-11-24 |
Family
ID=60353055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710704988.3A Pending CN107389408A (en) | 2017-08-17 | 2017-08-17 | A kind of triaxial test sample preparation device and method for making sample |
Country Status (1)
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107884248A (en) * | 2017-12-23 | 2018-04-06 | 郑州大学 | A kind of saturation soil sample preparation facilities and its application method |
| CN108396793A (en) * | 2018-05-20 | 2018-08-14 | 郑州大学 | A kind of impervious sample production method of easy soil cement |
| CN108444892A (en) * | 2018-05-20 | 2018-08-24 | 郑州大学 | A kind of impervious sample production method of the soil cement of simplicity |
| CN108548705A (en) * | 2018-06-05 | 2018-09-18 | 溧阳市联华机械制造有限公司 | Resin-coated sand shell mould permeability test sample preparation device |
| CN108760426A (en) * | 2018-05-30 | 2018-11-06 | 兰州理工大学 | A kind of three axis sample preparation device of static pressure method and method |
| CN109531798A (en) * | 2019-01-29 | 2019-03-29 | 福州大学 | A kind of three axis sample stripper apparatus of manipulated soil and its release method |
| CN110006715A (en) * | 2019-01-25 | 2019-07-12 | 同创工程设计有限公司 | A kind of modified native method for making sample without lateral confinement sample of stream modeling |
| CN110715887A (en) * | 2018-07-12 | 2020-01-21 | 中国石油化工股份有限公司 | Bituminous sand porosity determination device and method |
| CN111272513A (en) * | 2020-03-25 | 2020-06-12 | 河海大学 | Remolded soil bidirectional layered compaction sample preparation device and sample preparation method |
| CN111707526A (en) * | 2020-07-22 | 2020-09-25 | 浙江理工大学 | Sample preparation mold and sample preparation method for domestic garbage soil triaxial test |
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| CN207051076U (en) * | 2017-08-17 | 2018-02-27 | 中国建筑东北设计研究院有限公司 | A kind of triaxial test sample preparation device |
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| CN203275166U (en) * | 2013-06-25 | 2013-11-06 | 青岛理工大学 | Manual demoulding device |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107884248B (en) * | 2017-12-23 | 2023-10-20 | 郑州大学 | Saturated soil sample preparation device and application method thereof |
| CN107884248A (en) * | 2017-12-23 | 2018-04-06 | 郑州大学 | A kind of saturation soil sample preparation facilities and its application method |
| CN108396793A (en) * | 2018-05-20 | 2018-08-14 | 郑州大学 | A kind of impervious sample production method of easy soil cement |
| CN108444892A (en) * | 2018-05-20 | 2018-08-24 | 郑州大学 | A kind of impervious sample production method of the soil cement of simplicity |
| CN108760426B (en) * | 2018-05-30 | 2023-06-02 | 兰州理工大学 | Static pressure method triaxial sample preparation device and method |
| CN108760426A (en) * | 2018-05-30 | 2018-11-06 | 兰州理工大学 | A kind of three axis sample preparation device of static pressure method and method |
| CN108548705A (en) * | 2018-06-05 | 2018-09-18 | 溧阳市联华机械制造有限公司 | Resin-coated sand shell mould permeability test sample preparation device |
| CN110715887A (en) * | 2018-07-12 | 2020-01-21 | 中国石油化工股份有限公司 | Bituminous sand porosity determination device and method |
| CN110006715A (en) * | 2019-01-25 | 2019-07-12 | 同创工程设计有限公司 | A kind of modified native method for making sample without lateral confinement sample of stream modeling |
| CN109531798A (en) * | 2019-01-29 | 2019-03-29 | 福州大学 | A kind of three axis sample stripper apparatus of manipulated soil and its release method |
| CN109531798B (en) * | 2019-01-29 | 2024-02-06 | 福州大学 | Remolded soil triaxial sample demoulding device and demoulding method thereof |
| CN111272513B (en) * | 2020-03-25 | 2021-06-15 | 河海大学 | Remolded soil bidirectional layered compaction sample preparation device and sample preparation method |
| CN111272513A (en) * | 2020-03-25 | 2020-06-12 | 河海大学 | Remolded soil bidirectional layered compaction sample preparation device and sample preparation method |
| CN111707526A (en) * | 2020-07-22 | 2020-09-25 | 浙江理工大学 | Sample preparation mold and sample preparation method for domestic garbage soil triaxial test |
| CN111707526B (en) * | 2020-07-22 | 2023-11-03 | 浙江理工大学 | Sample preparation mold and sample preparation method for triaxial test of household garbage soil |
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Effective date of registration: 20200520 Address after: 110000 room 332, No. 5-8, Xincai street, Hunnan New District, Shenyang City, Liaoning Province Applicant after: ZHONGJIAN DONGSHE ROCK AND SOIL ENGINEERING Co.,Ltd. Applicant after: CHINA NORTHEAST ARCHITECTURAL DESIGN AND RESEARCH INSTITUTE Co.,Ltd. Address before: 110006 65 glorious Street, Heping District, Liaoning, Shenyang Applicant before: CHINA NORTHEAST ARCHITECTURAL DESIGN AND RESEARCH INSTITUTE Co.,Ltd. |