CN106610353A - Device used for preparing triaxial test samples via layer-compacting - Google Patents
Device used for preparing triaxial test samples via layer-compacting Download PDFInfo
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- CN106610353A CN106610353A CN201510698026.2A CN201510698026A CN106610353A CN 106610353 A CN106610353 A CN 106610353A CN 201510698026 A CN201510698026 A CN 201510698026A CN 106610353 A CN106610353 A CN 106610353A
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- 238000012360 testing method Methods 0.000 title claims abstract description 29
- 239000002689 soil Substances 0.000 claims abstract description 117
- 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 4
- 238000003825 pressing Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 5
- 230000008901 benefit Effects 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 7
- 238000007493 shaping process Methods 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 238000007634 remodeling Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to an indoor triaxial test sample preparation device, and discloses a device used for preparing triaxial test samples via layer-compacting. The device comprises a soil sample compactor, a soil sample compacting cylinder, and a limiting module; the soil sample compacting cylinder is movably arranged in a sample hole on a main body pedestal of the soil sample compactor; and the limiting module is movably connected with a compacting hammer on the soil sample compactor. The device is invented based on improvement of a conventional soil sample compacting instrument, the structure of the device is simple, cost is low, the device is capable of ensuring the uniformity of the thickness of each layer of obtained samples, and the uniformity of the relative density of each soil layer, can be used for preparing soil samples with different layer height and layer numbers; the device is designed based on lever principles, so that both labor and time are saved, and preparing requirements of remolded samples are satisfied preferably.
Description
Technical field
The present invention relates to indoor triaxial test sample preparation device, divides more specifically to a kind of utilization
The real method of lamination prepares the device of triaxial test sample.
Background technology
In soil test, undisturbed and reinvent sample and lay equal stress on, undisturbed reflects the natural of the soil body
Structure, real mechanical property, but there is also that sampling is difficult, sample size is few, sample not
Uniformly, it is not easy to the shortcoming of scientific research；Compared to undisturbed, sample is reinvented in sample sample number
Amount, controlling test condition, test period, sample uniformity aspect all occupy greater advantage, because
This remoulded sample has higher, more common applicability in soil test.
The key for carrying out reinventing shaping to sample is to select a high precision, can flexibly control weight
Modeling sample relative density and uniformity and easily operated instrument.Three traditional axle apparatus remodeling sample compactings
It is divided into two kinds：One kind is one-shot forming ramming device (such as jack), and this ramming device can be protected
Card sample one-shot forming, but the drawbacks of having fatal：Sample density is uneven made by making,
There is the phenomenon of " tightening lower pine ", cause sample there is no good overall mechanical properties, it is overall
Bearing capacity declines, and can take a certain amount of soil during sample preparation out of, can cause the dry close of made soil sample
Degree produces larger error, substantially reduces test accuracy.Another kind is three common axle compaction test apparatuses,
This instrument is improved on the basis of one-shot forming ramming device, employs layering and hits real side
Method is reinvented to sample, obtains sample " tightening lower pine ", the phenomenon of overall performance difference
Improve, but using this instrument as real instrument is hit, there is each thickness layer by layer in sample preparation and be difficult to
Control (can only be gone to measure from level to level with ruler), the preparation to sample brings greatly inconvenience,
And each layer soil sample hit reality during, because the greater impact power for producing has shortened making for instrument
With the life-span and cause soil amount loss, make result of the test there is larger error.Accordingly, it would be desirable to
Design a kind of new remoulded sample shaping instrument, it is to avoid the generation of the problems referred to above, improve test
Precision
The content of the invention
The purpose of the present invention is intended to be molded the problem for existing with regard to soil sample according in soil test, and
The principle of three axle apparatus remodeling sample compactings of analysis conventional, for the problem that traditional instrument is present, carries
The device of triaxial test sample is prepared for a kind of new utilization layer-compacting, with reference to machinery neck
Domain and the knowledge in native field, will be successfully applied to based on the simple compactor of lever principle design
In soil sample compacting, the convenience of test operation and the precision of result are improve.
To solve above-mentioned technical problem, the technical solution used in the present invention is：One kind is utilized divides
The real method of lamination prepares the device of triaxial test sample, it is characterised in that：Including soil sample compactor,
Soil sample is compacted cylinder and spacing module；The soil sample compactor includes main base, installed in main body
On pedestal and with multiple handle hanging holes positioned at differing heights column, with column pass through handle
The handle that hanging hole is flexibly connected, and the depression bar with hammer for being movably arranged on middle handle；
Soil sample compacting cylinder includes base, soil sample forming tube and pressing plate, the soil sample forming tube be by
Multiple arcs plate splicing Jing circle cuffs are fixed, and the base is provided with fixed soil sample shaping
The groove of cylinder bottom, the pressing plate is provided with the through hole at the top of fixed soil sample forming tube, the pressure
Plate is bolted with base；The soil sample compacting cylinder is movably fixed to soil sample compactor main body
In sample aperture on pedestal, the spacing module is fixed with the hammer activity on soil sample compactor.
Further technical scheme is, also including mending high device, the high device of the benefit be one with soil
Sample forming tube interior diameter identical circular cylinder.
Further technical scheme is that the bottom of the spacing module can stretch into soil sample forming tube
Inside, and its top may be stuck in the outside of soil sample forming tube, and the bottom of the spacing module sets
There is the horizontal plane of a circle.
Further technical scheme is that the spacing module is 3 kinds, and it is highly different.
Further technical scheme is that the spacing module is led to the hammer on soil sample compactor
Cross magnetic force to fix.
Further technical scheme is, the hammer on the spacing module and soil sample compactor it
Between be provided with the magnet with adsorptivity.
Further technical scheme is that the soil sample forming tube is to splice Jing by three arcs
What circular cuff was fixed.
Further technical scheme is that the column is provided with two handles for being located at differing heights
Hanging hole.
Further technical scheme is also resided in, and the groove on the base is annular；The bottom
Groove on seat is circular.
It is using the beneficial effect produced by above-mentioned technical proposal：The present invention is for traditional soil sample
Sample preparation precision that ramming device is present is low, impulsive force that is producing is excessive, instrument service life is short, take
When it is laborious, the problems such as soil amount loss is big, be improved innovation so that brand-new Instrument structure simply,
Low cost, ensure that each homogeneous, each soil layer relative density thick layer by layer of sample is uniform, can basis
Demand is obtained the soil sample of difference layer height and the number of plies；And the compactor designed based on lever principle
It is time saving and energy saving to have the advantages that, it is to avoid tradition hits the instrument service life mistake of real mode presence
It is short, during reality is hit due to impulsive force cause soil amount loss etc. drawback, greatly meet weight
The requirement that modeling sample makes；Pass through magnetic picture between soil sample compactor and the spacing module of respective model
Even, soil sample compactor and spacing module are integrally formed, further ensure that the essence of compacting process
True property and simplicity.
Description of the drawings
With reference to the accompanying drawings and detailed description the present invention is further detailed explanation.
Fig. 1 is schematic structural view of the invention；
Fig. 2 is soil sample compactor structural representation in the present invention；
Fig. 3 is spacing modular structure schematic diagram in the present invention；
Fig. 4 is soil sample compacting barrel structure schematic diagram in the present invention；
Fig. 5 is that high device structural representation is mended in the present invention
Wherein:1st, soil sample compactor；1-1, main base；1-2, column；1-3, depression bar；
1-4, first handle hanging hole；1-5, second handle hanging hole；1-6, handle；1-7, hammer；
1-8, sample aperture；2nd, spacing module；3rd, soil sample compacting cylinder；3-1, circular cuff；3-2、
Pressing plate；3-3, soil sample forming tube；3-4, bolt；3-5, base；4th, high device is mended.
Specific embodiment
With reference to the accompanying drawing in the embodiment of the present invention, to the technical scheme in the embodiment of the present invention
It is clearly and completely described, it is clear that described embodiment is only of the present invention
Divide embodiment, rather than the embodiment of whole.Based on the embodiment in the present invention, this area is general
The every other embodiment that logical technical staff is obtained under the premise of creative work is not made,
Belong to the scope of protection of the invention.
Many details are elaborated in the following description in order to fully understand the present invention, but
It is that the present invention can also be different from alternate manner described here to implement using other, this area
Technical staff can be similar popularization, therefore the present invention in the case of without prejudice to intension of the present invention
Do not limited by following public specific embodiment.
Present invention employs the simple compactor designed based on lever principle, knowing mechanical field
Knowledge is applied in soil test, handle 1-6, depression bar 1-3, hammer 1-7, column 1-2 structures
Into a lever arrangement, the traditional approach by greater impact power compacted samples, skill are instead of
Property reaches time saving and energy saving effect.
As shown in figure 1, the present invention includes that soil sample compactor 1, soil sample is compacted cylinder 3 and spacing mould
Block 2；
As shown in Fig. 2 soil sample compactor 1 includes main base 1-1, installed in main base
1-1 is upper and with the column 1-2 of multiple handle hanging holes positioned at differing heights, with column 1-2
The handle 1-6 being flexibly connected by handle hanging hole, and be movably arranged in the middle part of handle 1-6
Depression bar 1-3 with hammer 1-7；
As shown in figure 3, soil sample compacting cylinder 3 includes base 3-5, soil sample forming tube 3-3 and pressure
Plate 3-2, soil sample forming tube 3-3 be by multiple arcs plate splicing Jing circle cuff 3-1 fix and
Into, base 3-5 is provided with the groove of fixed soil sample forming tube 3-3 bottoms, and pressing plate 3-2 is provided with
Through hole at the top of fixed soil sample forming tube 3-3, pressing plate 3-2 and base 3-5 passes through bolt
3-4 connects；
As shown in figure 1, soil sample compacting cylinder 3 is movably fixed to the main base of soil sample compactor 1
In sample aperture 1-8 on 1-1, prevent in compacting process because soil sample compacting cylinder 3 is moved to soil
The destruction that sample is caused, spacing module 2 is fixed with the hammer 1-7 activity on soil sample compactor 1.
As shown in figure 5, present invention additionally comprises mend high device 4, mend high device 4 be one with soil sample into
Type tube 3-3 interior diameter identical circular cylinders.
Preferably, the bottom of spacing module 2 can stretch into the inside of soil sample forming tube 3-3, and its
Top may be stuck in the outside of soil sample forming tube 3-3, and the bottom of spacing module 2 is provided with a circle
Horizontal plane.
As shown in figure 4, spacing module 2 is 3 kinds, it is highly different.Every kind of spacing mould
Block 2 is constituted by three parts：Top (is slightly larger than soil sample forming tube 3-3 for diameter 43.6mm
Interior diameter), the cylinder of high 25mm；Bottom (is slightly less than sample forming tube 3-3 for diameter 38.3mm
Interior diameter), the cake of high 5mm；Centre be diameter 18.5mm, a height of 15mm, 35mm,
The elongate cylinder of tri- kinds of different models of 55mm.
The top of every kind of spacing module 2 be " pyknic " cylinder, its diameter slightly larger than sample into
Type tube 3-3 upper ends interior diameter, bottom is slightly less than sample forming tube 3-3 upper ends interior diameter for a diameter
Cake, it can freely come in and go out in sample forming tube 3-3, centre be a colonnette, for power transmission；
In the present invention, spacing module 2 is solid by magnetic force with hammer 1-7 on soil sample compactor 1
It is fixed.
Preferably, it is provided between hammer 1-7 in spacing module 2 and soil sample compactor 1 and has
The magnet of adsorptivity.
It is connected by magnetic force between soil sample compactor 1 and the spacing module 2 of respective model, makes soil
Sample compactor 1 and spacing module 2 are integrally formed, it is ensured that the accuracy and simplicity of compacting process
Property.In compacting, soil sample compactor 1 and spacing module 2 due to moving in the presence of pressure, when
When reaching the soil thickness of requirement, the top point of spacing module 2 then can block, then compacting is completed.
Preferably, soil sample forming tube 3-3 is to splice Jing circle cuff 3-1 by three arcs to consolidate
Surely.
Preferably, column 1-2 is provided with two handle hanging holes for being located at differing heights, and respectively the
One handle hanging hole 1-4, second handle hanging hole 1-5.When the soil sample layering number of plies is 4 layers, pressure
During real first, second and third layer of soil sample, it is not necessary to using high device 4 is mended, then first handle is selected to hang
Hole 1-4, and when carrying out last layer of soil sample compacting, need with the use of high device 4 is mended, highly
Increase 40mm, then select second handle hanging hole 1-5, the slotted hole on handle 1-6 to snap into right side
During the trough position of column, spacing module 2 is also just stuck, and complete this layer of soil sample hits reality；
Preferably, the groove on base 3-5 is annular；Groove on base 3-5 is circle
's.For placing the soil sample forming tube 3-3 being spliced by three pieces of arcs；
Concrete operation step is as follows：
1. three pieces of arcs are spliced into into cylinder, and are fixed by circular cuff, composition soil
Sample forming tube 3-3, soil sample forming tube 3-3 interior diameter is 39.1mm, a height of 80mm, by soil
Sample forming tube 3-3 is placed on the groove of base 3-5, and pressing plate 3-2 is placed in soil sample forming tube 3-3
Top corresponding position, pressing plate 3-2 is simultaneously connected by vertical bolt 3-4 with base 3-5,
Constitute soil sample compacting cylinder 3.
2. soil sample is compacted into the sample that cylinder 3 is individually positioned in the main base 1-1 of soil sample compactor 1
At the 1-8 of hole, fixed, now the handle 1-6 of soil sample compactor 1 is suspended to into first
At handle hanging hole 1-4.
3. the quality of the ground floor soil sample of compacting needed for weighing, and put it into soil sample compacting cylinder 3
In, magnet is fixed on soil sample compactor 1, and adsorbs middle buttress shaft highly (to enter for 55mm
Cylinder height be 60mm) spacing module 2, make force handle 1-6 right side lift to certain altitude,
And firmly push, now due to the interlink function of depression bar 1-3, hammer 1-7 and spacing module 2
Move down, by spacing module 2, soil sample be compacted, with spacing module 2 it is continuous under
Move, the top card of spacing module 2 completes the pressure of this layer of soil sample in soil sample compacting cylinder 3 upper end
Real, now the slotted hole on handle 1-6 also just snaps into the trough position of right side uprights.
4. after compacting is finished, the spacing module 2 of this model is unloaded, and ground floor soil sample is carried out
Shaving process.
5. the quality of second layer soil sample is weighed, and is made in the middle of the magnet adsorption on soil sample compactor 1
Buttress shaft is highly the spacing module 2 of 35mm (it is highly 40mm to enter cylinder), repeat step 3 and 4.
6. the quality of third layer soil sample is weighed, and is made in the middle of the magnet adsorption on soil sample compactor 1
Buttress shaft is highly the spacing module 2 of 15mm (it is highly 20mm to enter cylinder), repeat step 3 and 4.
7. the quality of the 4th layer of soil sample is weighed, high device 4 will be mended and be placed on soil sample compacting cylinder 3
Upper end and make on soil sample compactor 1 magnet adsorption in the middle of buttress shaft highly be 35mm spacing mould
Block 2, is now suspended to the handle 1-6 of soil sample compactor 1 at second hanging hole 1-5, weight
Multiple step 3 and 4.
8. the one point four layers three axle samples preparation for carrying out compaction moulding are completed, it is also possible to according to reality
Test and require to select appropriate layer height and hierarchy number, take out sample, it is ensured that each equipment is returned to
Initial conditions.
Claims (9)
1. a kind of utilization layer-compacting prepares the device of triaxial test sample, it is characterised in that：
Including soil sample compactor, soil sample compacting cylinder and spacing module；The soil sample compacting cylinder includes main body
Pedestal, it is on main base and vertical with multiple handle hanging holes positioned at differing heights
Post, the handle being flexibly connected by handle hanging hole with column, and it is movably arranged on middle handle
The depression bar with hammer；The soil sample compactor includes base, soil sample forming tube and pressing plate,
The soil sample forming tube is fixed by multiple arcs plate splicing Jing circle cuffs and formed, the bottom
Seat is provided with the groove of fixed soil sample forming tube bottom, and the pressing plate is provided with fixed soil sample forming tube top
The through hole in portion, the pressing plate is bolted with base；The soil sample compacting cylinder activity is solid
It is scheduled in the sample aperture on soil sample compactor main base, the spacing module and soil sample compactor
On hammer activity fix.
2. utilization layer-compacting according to claim 1 prepares triaxial test sample
Device, it is characterised in that：Also include mending high device, the high device of the benefit be one with soil sample forming tube
Interior diameter identical circular cylinder.
3. utilization layer-compacting according to claim 1 prepares triaxial test sample
Device, it is characterised in that：The bottom of the spacing module can stretch into the inside of soil sample forming tube,
And its top may be stuck in the outside of soil sample forming tube, the bottom of the spacing module is provided with a circle
The horizontal plane of shape.
4. the utilization layer-compacting according to claim 1 or 3 prepares triaxial test examination
The device of sample, it is characterised in that：The spacing module is 3 kinds, and it is highly different.
5. utilization layer-compacting according to claim 1 prepares triaxial test sample
Device, it is characterised in that：The spacing module is solid by magnetic force with the hammer on soil sample compactor
It is fixed.
6. prepare triaxial test using layer-compacting according to claim 1 or 5 to try
The device of sample, it is characterised in that：Set between hammer in the spacing module and soil sample compactor
There is the magnet with adsorptivity.
7. utilization layer-compacting according to claim 1 prepares triaxial test sample
Device, it is characterised in that：The soil sample forming tube is to splice Jing circle cuffs by three arcs
Fixed.
8. utilization layer-compacting according to claim 1 prepares triaxial test sample
Device, it is characterised in that：The column is provided with two handle hanging holes for being located at differing heights.
9. utilization layer-compacting according to claim 1 prepares triaxial test sample
Device, it is characterised in that：Groove on the base is annular；Groove on the base
For circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510698026.2A CN106610353A (en) | 2015-10-23 | 2015-10-23 | Device used for preparing triaxial test samples via layer-compacting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510698026.2A CN106610353A (en) | 2015-10-23 | 2015-10-23 | Device used for preparing triaxial test samples via layer-compacting |
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|---|---|
| CN106610353A true CN106610353A (en) | 2017-05-03 |
Family
ID=58612715
Family Applications (1)
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|---|---|---|---|
| CN201510698026.2A Pending CN106610353A (en) | 2015-10-23 | 2015-10-23 | Device used for preparing triaxial test samples via layer-compacting |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107807081A (en) * | 2017-10-18 | 2018-03-16 | 中国铁路设计集团有限公司 | A kind of roadbed filling permeameter and roadbed filling product method, method of testing |
| CN108051271A (en) * | 2017-12-29 | 2018-05-18 | 中国地质大学（武汉） | A kind of hand-rail type geologic model test soil body layered rolling device |
| CN108398307A (en) * | 2018-05-20 | 2018-08-14 | 郑州大学 | A kind of impervious sample production method of soil cement |
| CN109916688A (en) * | 2019-04-19 | 2019-06-21 | 中南大学 | A kind of the lever sampling machine and its method for making sample of disturbed soil triaxial compression test |
| CN113790982A (en) * | 2021-07-30 | 2021-12-14 | 南华大学 | Pile-unsaturated soil interface friction visualization test device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107807081A (en) * | 2017-10-18 | 2018-03-16 | 中国铁路设计集团有限公司 | A kind of roadbed filling permeameter and roadbed filling product method, method of testing |
| CN108051271A (en) * | 2017-12-29 | 2018-05-18 | 中国地质大学（武汉） | A kind of hand-rail type geologic model test soil body layered rolling device |
| CN108398307A (en) * | 2018-05-20 | 2018-08-14 | 郑州大学 | A kind of impervious sample production method of soil cement |
| CN108398307B (en) * | 2018-05-20 | 2024-01-26 | 郑州大学 | Cement soil impervious sample manufacturing method |
| CN109916688A (en) * | 2019-04-19 | 2019-06-21 | 中南大学 | A kind of the lever sampling machine and its method for making sample of disturbed soil triaxial compression test |
| CN109916688B (en) * | 2019-04-19 | 2024-04-12 | 中南大学 | Lever type sample making machine for triaxial compression test of disturbing soil and sample making method thereof |
| CN113790982A (en) * | 2021-07-30 | 2021-12-14 | 南华大学 | Pile-unsaturated soil interface friction visualization test device and method |
| CN113790982B (en) * | 2021-07-30 | 2024-03-29 | 南华大学 | Pile-unsaturated soil interface friction visualization test device and method |
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