CN108760426A - A kind of three axis sample preparation device of static pressure method and method - Google Patents
A kind of three axis sample preparation device of static pressure method and method Download PDFInfo
- Publication number
- CN108760426A CN108760426A CN201810542414.5A CN201810542414A CN108760426A CN 108760426 A CN108760426 A CN 108760426A CN 201810542414 A CN201810542414 A CN 201810542414A CN 108760426 A CN108760426 A CN 108760426A
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- China
- Prior art keywords
- die frame
- saturator
- bottom plate
- cushion block
- piston
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Links
- 238000000034 method Methods 0.000 title claims abstract description 38
- 230000003068 static effect Effects 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title claims abstract description 27
- 239000002689 soil Substances 0.000 claims abstract description 37
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000000203 mixture Substances 0.000 claims description 4
- 238000003475 lamination Methods 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 abstract description 3
- 125000006850 spacer group Chemical group 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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
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- Physics & Mathematics (AREA)
- 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)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention relates to a kind of three axis sample preparation device of static pressure method and methods, described device includes saturator, pressure-like piston and saturator bottom plate, further include die frame and cushion block, the die frame includes die frame pedestal, it which is provided with die frame pull rod and the fixed link for fixed support saturator bottom plate, the arbitrary height position of die frame pull rod is securable to ring and die frame bottom plate on the die frame of the upper and lower side of saturator cooperation assembling respectively, and ring and die frame bottom plate are equipped with the through-hole equal with saturator internal diameter on die frame, annular convex platform of the diameter more than ring through-hole diameter on die frame is additionally provided on the pressure-like piston.The present invention can be packed into the depth of soil in the quantity control saturator by increasing or decreasing cushion block, realize the depth for equably deepening saturator, the pressure-like piston static pressure equipped with annular convex platform is used in combination, the disadvantage that native face tilts and each layer thickness does not wait caused by human factor is eliminated, the uniformity and reliability of entire sample are improved.
Description
Technical field
The present invention relates to soil test device and method, and in particular to the preparation facilities and method of three axis sample of manipulated soil.
Background technology
The three common preparation method of axis sample of manipulated soil has concretion method, compacting process and static pressure method, wherein static pressure method at present
It is that the soil body of certain mass is put into saturator, puts pressure-like piston after scraping grading face, piston upper is carved with layering indentation
Control line applies graduation mark and the control until ring flushes on die frame, therefore per layer height that piston is depressed into each layer by static(al)
System must with the naked eye be taken aim to graduation mark, thus human factor is affected, and be easy to cause that native face tilts and each layer thickness differs
The shortcomings of.In the prior art application publication number be CN106610353A application for a patent for invention disclose it is a kind of utilize compaction in layers
Method prepares the device of triaxial test sample, including soil sample compactor, soil sample compacting cylinder and limit module, and the soil sample compacting cylinder is lived
Dynamic to be fixed in the sample aperture on soil sample compactor main base, the limit module and the hammer activity on soil sample compactor are solid
It is fixed, although the invention by limit module make sample respectively it is thick layer by layer it is uniform, each soil layer relative density is uniform, in the invention
The compacting to different layers is realized including 3 kinds of different limit modules of height, not only makes whole device part various, but also pressing
System frequently replaces the different limit module of height in the process but also entire sample making course complexity, inconvenient.In addition there is Shen
Please publication No. be CN104006992A application for a patent for invention disclose symmetrical layering pressure-like prepared by a kind of triaxial test sample
The composition of device and method for making sample, device is mainly：The outer wall at soil sample tube both ends with the card slot fitting of exntension tubs inner wall, prolongs
The inner diameter for stretching the non-card slot position of cylinder is equal with the inner diameter of soil sample tube；Exntension tubs and soil sample tube inner sleeve cushion block external member, pad
The composition of block external member is：The periphery outwardly convex of outer cushion block the back end forms cover rim, and outer cushion block front center is equipped with threaded
Protrusion；Middle spacer back center has threaded hole, front center to have threaded protrusion, and there are two middle spacers；The interior cushion block back of the body
Face is equipped with threaded hole, and front is smooth；It is threadedly coupled with respective screw hole by protrusion between outer cushion block, middle spacer, interior cushion block；
Interior cushion block, 1/5 that middle spacer height is soil sample tube height；The sum of interior cushion block and the height of outer cushion block subtract cover rim thickness and are equal to
The non-card slot position height of exntension tubs.Although the device passes through sample uniformity made from outer cushion block, middle spacer and interior cushion block
Preferably, but whole device is excessively complicated, is unsuitable for promoting and applying.
Invention content
It is an object of the invention to overcome the deficiencies in the prior art, proposes that one kind is easy to use, it is uniform sample can be improved
The three axis sample preparation device of static pressure method and method of property and reliability.
The present invention three axis sample preparation device of static pressure method, include from tubular saturator, can be with pressure-like with saturator
Pressure-like piston and saturator bottom plate composition mold, further include that can be used to the die frame of fixed whole set of die and changeable full
With the cushion block of device bottom plate and saturator relative position, the die frame includes die frame pedestal, which is provided with die frame pull rod and
For the fixed link of fixed support saturator bottom plate, ring and mold on the die frame assembled respectively with the cooperation of the upper and lower side of saturator
Frame bottom plate be securable to ring and die frame bottom plate on the arbitrary height position and die frame of die frame pull rod be equipped with in saturator
Diameter equal through-hole is additionally provided with annular convex platform of the diameter more than ring through-hole diameter on die frame on the pressure-like piston, and described
The upper surface area of cushion block is more than the area of die frame bottom hole.The present invention passes through in fixed link, die frame bottom plate and mould
The quantity of cushion block is increased or decreased between tool frame pedestal to change the relative position of saturator and saturator bottom plate, to which control is full
With the depth that can be packed into soil in device.In sample preparation, by being continuously increased cushion block quantity, the soil sample weighed up is poured into saturator by several times
In, the annular convex platform on static pressure to pressure-like piston is then applied by pressure-like piston and is withstood by ring on die frame, that is, completes the layer
The compacting of soil sample, sample divide five layers of making according to the method described above.The device of the invention can realize the depth for equably deepening saturator
The pressure-like piston static pressure equipped with annular convex platform is used in combination in degree, and native face caused by eliminating human factor tilts and each layer thickness differs
The shortcomings that, increase the uniformity and reliability of entire sample.
Further, three axis sample preparation device of static pressure method of the invention, the cushion block are cuboid, and one side offers can
For fixed link on die frame pedestal and die frame pull rod by U-shaped mouth, to easily increase or decrease die frame bottom plate with
The quantity of cushion block, easy to operate between die frame pedestal.
Further, three axis sample preparation device of static pressure method of the invention, the cushion block is equipped with 4 pieces and height is fixed link
/ 5th of height.
Further, three axis sample preparation device of static pressure method of the invention, the height of the following pressure-like piston of annular convex platform
For at the top of cushion block height and saturator on die frame ring overhead height and.
Further, three axis sample preparation device of static pressure method of the invention, ring and die frame bottom plate can lead on the die frame
Cross the arbitrary height position that bolt is fixed on die frame pull rod.
Further, three axis preparation method of sample of static pressure method of the invention, includes the following steps：
1) according to the closely knit solidity and size of made sample, the quality of required soil is calculated, and soil is equally divided into five parts；
2) ring, die frame bottom plate and saturator on die frame are assembled, and die frame bottom plate are made to be close to die frame pedestal,
Tightening bolt makes whole device fix；
3) first layer soil weight is weighed up, is poured into saturator, grading face is stroked, puts pressure-like piston, and apply to pressure-like piston
For static pressure until the annular convex platform on pressure-like piston is withstood by ring on die frame, this lamination system digs hair soil sample upper surface after the completion；
4) bolt is unclamped, one piece of cushion block is placed below in die frame bottom plate first, so that die frame bottom plate is close to cushion block, tightens
Bolt fixes whole device, then weighs up second layer soil and continues to pour into saturator again, the second layer is completed as described in step 3)
The compacting of pattern；
5) remaining three layers of making is repeated in step 4), is finally completed the whole preparation process of soil sample.
Compared with prior art, the present invention has technique effect beneficial below：
The present invention a kind of three axis sample preparation device of static pressure method and method, by fixed link, die frame bottom plate with
The quantity of cushion block is increased or decreased between die frame pedestal to change the relative position of saturator and saturator bottom plate, to control
It can be packed into the depth of soil in saturator, realize the depth for equably deepening saturator, the pressure-like piston equipped with annular convex platform is used in combination
Static pressure eliminates the disadvantage that native face tilts and each layer thickness does not wait caused by human factor, improves the uniformity of entire sample
With reliability.
Description of the drawings
Fig. 1 is the sample preparation device structure sectional view of the present invention.
Fig. 2 is the pressure-like piston front view of the present invention.
Fig. 3 is the pressure-like piston vertical view of the present invention.
Fig. 4 is the cushion block front view of the present invention.
Fig. 5 is the cushion block vertical view of the present invention.
In figure：1. ring on die frame, 2. saturators, 3. saturator bottom plates, 4. die frame bottom plates, 5. cushion blocks, 6. bolts, 7.
Die frame pull rod, 8. pressure-like pistons, 9. die frame pedestals, 10. fixed links, 11. annular convex platform, 12.U shape mouths.
Specific implementation mode
With reference to specific embodiment, the present invention is described in further detail.
As shown in Figs. 1-5, three axis sample preparation device of a kind of static pressure method of the invention, include by tubular saturator 2, can
Coordinate the mold that the pressure-like piston 8 of pressure-like and saturator bottom plate 3 form with saturator 2, further includes that can be used to fixed a whole set of mould
The cushion block 5 of the die frame of tool and changeable saturator bottom plate 3 and 2 relative position of saturator, in presently preferred embodiment, saturator
2, between pressure-like piston 8 and saturator bottom plate 3 be most loose fit, the saturator 2 be a cylinder steel cylinder, height with
Diameter is selected according to made specimen size, and the die frame includes die frame pedestal 9, which is provided with die frame pull rod 7 and is used for
The fixed link 10 of fixed support saturator bottom plate 3, the cushion block 5 is cuboid, and one side offers on die frame pedestal 9
Fixed link 10 and die frame pull rod 7 by U-shaped mouth 12, and cushion block 5 is equipped with 4 pieces and height is 10 height of fixed link five
/ mono-, the upper surface area of cushion block 5 is more than the area of 4 through-hole of die frame bottom plate.Ring 1 and die frame bottom plate wherein on die frame
4 can coordinate assembling with the upper and lower side of saturator 2 respectively, and the arbitrary height of die frame pull rod 7 is fixed on together with saturator 2
Position, is additionally provided with the through-hole equal with 2 internal diameter of saturator on die frame on ring 1 and die frame bottom plate 4, on the pressure-like piston 8
It is additionally provided with annular convex platform 11 of the diameter more than 1 through-hole diameter of ring on die frame, the wherein height of 11 or less pressure-like piston 8 of annular convex platform
Degree be 2 top of 5 height of cushion block and saturator to 1 overhead height of ring on die frame and.In presently preferred embodiment, on die frame
Ring 1 and die frame bottom plate 4 are all fixed on by bolt 6 on die frame pull rod 7.
The method for preparing sample using the three axis sample preparation device of static pressure method of the present invention, includes the following steps：
1) according to the closely knit solidity and size of made sample, the quality of required soil is calculated, and soil is equally divided into five parts；
2) ring on die frame 1, die frame bottom plate 4 and saturator 2 are assembled, and die frame bottom plate 4 is made to be close to die frame
Pedestal 9, tightening bolt 6 makes whole device fix；
3) first layer soil weight is weighed up, is poured into saturator 2, grading face is stroked, puts pressure-like piston 8, and apply to pressure-like piston 8
Add static pressure until the annular convex platform 11 on pressure-like piston 8 is withstood by ring on die frame 1, after the completion of this lamination system in plane hair soil sample
Surface；
4) bolt 6 is unclamped, one piece of cushion block 5 is placed below in die frame bottom plate 4 first, die frame bottom plate 4 is made to be close to cushion block
5, it tightens bolt 6 and fixes whole device, then weigh up second layer soil and continue to pour into saturator 2 again, it is complete as described in step 3)
At the compacting of second layer pattern；
5) remaining three layers of making is repeated in step 4), is finally completed the whole preparation process of soil sample.
Claims (6)
1. a kind of three axis sample preparation device of static pressure method, include from tubular saturator (2), can be with pressure-like with saturator (2)
Pressure-like piston (8) and saturator bottom plate (3) composition mold, it is characterised in that：The preparation facilities further includes that can be used to
The cushion block (5) of the die frame and changeable saturator bottom plate (3) and saturator (2) relative position of fixed whole set of die, the mould
It includes die frame pedestal (9) to have frame, which is provided with die frame pull rod (7) and the fixation for fixed support saturator bottom plate (3)
Bar (10) is securable to ring (1) and die frame bottom plate (4) on the die frame of the upper and lower side of saturator (2) cooperation assembling respectively
Ring (1) and die frame bottom plate (4) is equipped with and saturator (2) internal diameter on the arbitrary height position of die frame pull rod (7) and die frame
Equal through-hole is additionally provided with annular convex platform of the diameter more than ring (1) through-hole diameter on die frame on the pressure-like piston (8)
(11), and the upper surface area of the cushion block (5) be more than die frame bottom plate (4) through-hole area.
2. three axis sample preparation device of static pressure method according to claim 1, which is characterized in that the cushion block (5) is rectangular
Body, one side offer for fixed link (10) on die frame pedestal (9) and die frame pull rod (7) by U-shaped mouth (12).
3. three axis sample preparation device of static pressure method according to claim 2, which is characterized in that the cushion block (5) is equipped with 4
Block and height are 1/5th of fixed link (10) height.
4. three axis sample preparation device of static pressure method according to claim 3, which is characterized in that the annular convex platform (11) with
The height of lower pressure-like piston (8) be cushion block (5) highly with saturator (2) at the top of to ring on die frame (1) overhead height and.
5. three axis sample preparation device of static pressure method according to claim 4, which is characterized in that ring (1) on the die frame
The arbitrary height position on die frame pull rod (7) can be fixed on by bolt (6) with die frame bottom plate (4).
6. the method that any three axis sample preparation device of static pressure method prepares sample described in claim 1-5, which is characterized in that institute
The method of stating includes the following steps：
1) according to the closely knit solidity and size of made sample, the quality of required soil is calculated, and soil is equally divided into five parts；
2) ring on die frame (1), die frame bottom plate (4) and saturator (2) are assembled, and die frame bottom plate (4) is made to be close to mould
Has frame pedestal (9), tightening bolt (6) makes whole device fix；
3) first layer soil weight is weighed up, pours into saturator (2), strokes grading face, puts pressure-like piston (8), and to pressure-like piston (8)
Apply static pressure until the annular convex platform (11) on pressure-like piston (8) is withstood by ring on die frame (1), this lamination system is dug after the completion
Hair soil sample upper surface；
4) bolt (6) is unclamped, one piece of cushion block (5) is placed below in die frame bottom plate (4) first, die frame bottom plate (4) is made to be close to
Cushion block (5) tightens bolt (6) and fixes whole device, then weighs up second layer soil and continue to pour into saturator (2) again, such as step
3) compacting of second layer pattern is completed described in；
5) remaining three layers of making is repeated in step 4), is finally completed the whole preparation process of soil sample.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810542414.5A CN108760426B (en) | 2018-05-30 | 2018-05-30 | Static pressure method triaxial sample preparation device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810542414.5A CN108760426B (en) | 2018-05-30 | 2018-05-30 | Static pressure method triaxial sample preparation device and method |
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| Publication Number | Publication Date |
|---|---|
| CN108760426A true CN108760426A (en) | 2018-11-06 |
| CN108760426B CN108760426B (en) | 2023-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810542414.5A Active CN108760426B (en) | 2018-05-30 | 2018-05-30 | Static pressure method triaxial sample preparation device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111999141A (en) * | 2020-08-19 | 2020-11-27 | 安徽伟基基础工程有限公司 | Foundation consolidates geotechnique with pressing appearance device |
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| JP2016125962A (en) * | 2015-01-07 | 2016-07-11 | 清水建設株式会社 | Triaxial frost heaving test device and measurement method of three-dimensional freezing expansion characteristic of soil |
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| CN107389408A (en) * | 2017-08-17 | 2017-11-24 | 中国建筑东北设计研究院有限公司 | A kind of triaxial test sample preparation device and method for making sample |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095618A (en) * | 2010-11-30 | 2011-06-15 | 上海交通大学 | Device for preparing light-weight remoulded soil sample |
| CN103712842A (en) * | 2014-01-09 | 2014-04-09 | 西南交通大学 | Bidirectional layered sample pressing device for preparing consolidation test sample and sample pressing method thereof |
| CN104006992A (en) * | 2014-05-22 | 2014-08-27 | 西南交通大学 | Symmetrical layered sample pressing device for triaxial test sample preparation and sample preparation method |
| CN104266887A (en) * | 2014-09-25 | 2015-01-07 | 中国科学院武汉岩土力学研究所 | Electric static force two-way remoulded soil sample preparation instrument |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111999141A (en) * | 2020-08-19 | 2020-11-27 | 安徽伟基基础工程有限公司 | Foundation consolidates geotechnique with pressing appearance device |
| CN111999141B (en) * | 2020-08-19 | 2022-05-13 | 安徽伟基基础工程有限公司 | Foundation consolidates geotechnique with pressing appearance device |
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| Publication number | Publication date |
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| CN108760426B (en) | 2023-06-02 |
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Inventor after: Guo Jian Inventor after: Jia Liang Inventor before: Jia Liang Inventor before: Guo Jian |