CN208254936U - A kind of visualization sample box for laboratory soil test - Google Patents
A kind of visualization sample box for laboratory soil test Download PDFInfo
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- CN208254936U CN208254936U CN201820986642.7U CN201820986642U CN208254936U CN 208254936 U CN208254936 U CN 208254936U CN 201820986642 U CN201820986642 U CN 201820986642U CN 208254936 U CN208254936 U CN 208254936U
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- Prior art keywords
- box
- hole
- test
- lower box
- cartridge body
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- 238000012360 testing method Methods 0.000 title claims abstract description 86
- 239000002689 soil Substances 0.000 title claims abstract description 51
- 238000012800 visualization Methods 0.000 title claims abstract description 15
- 239000012780 transparent material Substances 0.000 claims abstract description 4
- 239000004575 stone Substances 0.000 claims description 9
- 239000011521 glass Substances 0.000 claims description 5
- 238000007596 consolidation process Methods 0.000 abstract description 18
- 230000006835 compression Effects 0.000 abstract description 9
- 238000007906 compression Methods 0.000 abstract description 9
- 238000006073 displacement reaction Methods 0.000 abstract description 9
- 238000002474 experimental method Methods 0.000 abstract description 6
- 239000011800 void material Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000011888 foil Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009533 lab test Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000012669 compression test Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model discloses a kind of visualization sample boxs for laboratory soil test, including upper cartridge body (1), lower box body (2), positioning pin (3), top cover (4)；Cylinder shape groove (21) are equipped among lower box body (2), lower box body (2) edge is equipped with lower box limit hole (22), and upper box through-hole (11) is equipped among upper cartridge body (1), and upper cartridge body (1) edge is equipped with upper box limiting through hole (12)；Lower box limit hole (22) and upper box limiting through hole (12) pass through positioning pin (3) detachable connection；Upper cartridge body (1) and lower box body (2) are transparent material.The utility model not only can be used for the sample test of indoor geotechnological direct shear test, but also be suitable for the sample test of one-dimensional consolidation test, and test experiments result is accurate, reliable；Motion state of the soil body under shear action or under compression, the structure change and displacement of the Observable soil body directly can be observed by naked eyes or digital filming equipment.
Description
Technical field
The utility model relates to technical field of civil engineering, and in particular to a kind of visualization examination for laboratory soil test
Sample box.
Background technique
Sample box is the important experiment equipment of soil test, and every kind of test equipment is all corresponding with matched sample box, wherein
The compression box of direct shear box and the one-dimensional consolidation test of direct shear test belongs to one kind of sample box, deposits in actual application
Following insufficient:
Direct shear test is a kind of important soil test, passes through the available certain water content of direct shear test and compactness
Shear property of the soil sample at fixed shear face, obtains its shear strength parameter, cohesion and interior friction including soil sample
Angle.According to test soil sample nature difference, direct shear test can be divided into no-Co-alloy steel direct shear test and cohesive soil it is straight
Scissor test.The direct shear box of present market application is made of copper product processing and fabricating, when carrying out direct shear test by perpendicular
Under straight load action, the design parameter of mobile and horizontal displacement obtains its shear strength parameter using calculating.Because direct shear box
Materials'use is that copper product is made, and appearance is brass, so not it is observed that in Vertical Load and shear action
The case where structure change of lower soil particle and displacement and deformation.We only finally obtain i.e. traditional direct shear test during the test
Get the shear strength parameter of such soil body, and the microscopical structure for soil particle under the action of vertical load and horizontal shear
Variation and motion state are not known.
One-dimensional consolidation test is a kind of important soil test, through the available soil sample of the test under the conditions of lateral confinement,
Vertical compressive deformation situation after by vertical load, and then the compressed coefficient, compression modulus, coefficient of bulk compressibility etc. for obtaining the soil body
Parameter provides test basis for the compressibility of the research soil body and the sedimentation and deformation of ground.It is similar with direct shear test, it is existing one-dimensional
In consolidation test, it is the vertical change that soil sample is measured by dial gauge during the test that compression box, which is similarly copper product and is made,
Shape can not observe directly the microscopical structure variation and the displacement and change of the soil body of soil particle of the soil body under vertical uniform load q
Shape situation.
In order to realize visualization of the direct shear test in the process and during compression test, soil preferably can be observed and studied
Microscopical structure and displacement and deformation of the grain under by shear action, improve conventional efficient, we are existing straight it is necessary to improve
It cuts box and compresses the form of box, and provide a kind of direct shear test and one-dimensional consolidation tests general sample box.
Summary of the invention
It is a kind of for laboratory soil test the purpose of the utility model is to overcome providing in place of the deficiencies in the prior art
Sample box is visualized, not only can be used for the sample test of indoor geotechnological direct shear test, but also is suitable for the sample of one-dimensional consolidation test
Test, test experiments result are accurate, reliable；Naked eyes or the cameras view soil body can directly be passed through under shear action or compression is made
Motion state under, the structure of the Observable soil body and displacement and deformation.
The utility model technical scheme applied to solve the technical problem is:
A kind of visualization sample box for laboratory soil test, including upper cartridge body 1, lower box body 2, positioning pin 3, top cover 4；
Cylinder shape groove 21 is equipped among the lower box body 2,2 edge of lower box body is equipped with lower box limit hole 22；
Among the upper cartridge body 1 be equipped with upper box through-hole 11,1 edge of upper cartridge body be equipped with upper box limiting through hole 12, it is described on
1 side of box body is equipped with limit card slot 13；
Top cover 4 is equipped with above the upper box through-hole 11；
The cylinder shape groove 21 is equal with upper 11 diameter of box through-hole, the lower box limit hole 22 and upper box limiting through hole 12
Pass through 3 detachable connection of positioning pin；
The upper cartridge body 1 and lower box body 2 are transparent material.
Moreover, the lower box body 2 is the intermediate rectangular parallelepiped structure for being equipped with cylinder shape groove, the lower box limit hole 22 is distinguished
It is located at the corresponding right angle of lower box body 2；The upper cartridge body 1 is the intermediate rectangular parallelepiped structure for being equipped with upper box through-hole, and the upper box is logical
Hole 11 is respectively provided at the corresponding right angle of upper cartridge body 1.
Moreover, the limit card slot 13 is T-type card slot.
Moreover, the upper cartridge body 1 and lower box body 2 are made of organic glass.
Moreover, being equipped with permeable stone 5 inside the cylinder shape groove 21.
Moreover, 21 internal diameter of cylinder shape groove is 61.8mm, the 21 groove depth 17mm of cylinder shape groove；The upper cartridge body
1 a height of 23cm, a height of 23mm of the lower box body 2.
Moreover, 21 bottom of cylinder shape groove is equipped with drainage hole 23.
The advantages and positive effects of the utility model are as follows:
1, the utility model not only can be used for the sample test of indoor geotechnological direct shear test, but also is suitable for one-dimensional consolidation and tests
Sample test, it is easy to use efficiently, substantially increase conventional efficient.
2, upper cartridge body and lower box body described in the utility model are made of organic glass, realize the visualization function of test box
Energy.On Mechanical Characteristics, organic glass belongs to hard and crisp plastics, load needed for can undertaking test.It is practical using this
When novel carry out soil test, the soil body directly can be observed under shear action or compression by naked eyes or digital filming equipment
Under motion state, the structure change and displacement of the Observable soil body.
3, cylinder shape groove bottom described in the utility model is equipped with drainage hole, and the moisture in permeable stone can be discharged in time,
And then the moisture in the soil body is efficiently discharged in time, consolidation time is shortened, satisfaction is wanted compared with what high-moisture percentage soil solidifying was tested
It asks.
Detailed description of the invention
Fig. 1 is the utility model overall structure diagram.
Fig. 2 is the utility model upper cartridge body structural schematic diagram.
Fig. 3 is the utility model lower box body structural schematic diagram.
Fig. 4 is the utility model permeable stone structural schematic diagram.
Fig. 5 is the utility model limit card slot structural schematic diagram.
Specific embodiment
For the contents, features and effects that can further appreciate that the utility model, following embodiment is enumerated, and cooperates attached drawing detailed
Carefully it is described as follows.It should be noted that the present embodiment be it is descriptive, be not restrictive, it is practical new cannot thus to limit this
The protection scope of type.
In addition, it should be understood by one skilled in the art that provided attached drawing is simply to illustrate that the utility model
Objects, features and advantages, attached drawing are not to be actually drawn to scale.
A kind of visualization sample box for laboratory soil test, as shown in Figure 1, Figure 2, Figure 3, Figure 4, including upper cartridge body 1,
Lower box body 2, positioning pin 3, top cover 4；
Cylinder shape groove 21 is equipped among the lower box body 2,2 edge of lower box body is equipped with lower box limit hole 22；
Among the upper cartridge body 1 be equipped with upper box through-hole 11,1 edge of upper cartridge body be equipped with upper box limiting through hole 12, it is described on
1 side of box body is equipped with limit card slot 13；
Top cover 4 is equipped with above the upper box through-hole 11；
The cylinder shape groove 21 is equal with upper 11 diameter of box through-hole, the lower box limit hole 22 and upper box limiting through hole 12
Pass through 3 detachable connection of positioning pin；
The upper cartridge body 1 and lower box body 2 are transparent material.
Preferably, the lower box body 2 is the intermediate rectangular parallelepiped structure for being equipped with cylinder shape groove, the lower box limit hole 22
It is respectively provided at the corresponding right angle of lower box body 2；The upper cartridge body 1 is the intermediate rectangular parallelepiped structure for being equipped with upper box through-hole, it is described on
Box through-hole 11 is respectively provided at the corresponding right angle of upper cartridge body 1.
Preferably, as shown in figure 5, the limit card slot 13 is T-type card slot.
Preferably, the upper cartridge body 1 and lower box body 2 are made of organic glass.
Preferably, being equipped with permeable stone 5 inside the cylinder shape groove 21.
Preferably, 21 internal diameter of cylinder shape groove is 61.8mm, the 21 groove depth 17mm of cylinder shape groove；On described
The a height of 23cm of box body 1, a height of 23mm of the lower box body 2.
Preferably, 21 bottom of cylinder shape groove is equipped with drainage hole 23.
Application method of the utility model for the sample test of indoor geotechnological direct shear test is as follows:
Sample box installation: during direct shear test, lower box body is mounted on the guide rail of direct shear apparatus first, is then placed
Upper cartridge body makes the locating groove of upper cartridge body side be connected with the ring of measuring one's own ability of direct shear apparatus；And pass through positioning pin for upper and lower box body position
Set restriction；
Place sample: (formed by cylinder shape groove and upper box through-hole) first in the cylindrical space in the middle part of sample box according to
Secondary placement permeable stone and filter paper (disdrainage test then places plastic foil)；Then it is sampled with cutting ring, and soil sample is placed on by justifying
Cylindrical groove and upper box through-hole formed in cylindrical space, be sequentially placed filter paper (disdrainage test then places plastic foil) and
Permeable stone；
Test sample: after sample is placed, top cover is placed on top, and apply vertical load；Positioning pin is pulled out, with one
Constant speed degree shakes handwheel, pushes lower box body movement, generates relative displacement between upper and lower box body；Displacement is measured with dial gauge, is led to
The coefficient of excessive force ring calculates corresponding shear stress.The shear stress under every level-one load is drawn in σ-τ coordinate system, obtains soil
The shearing strength curve of body, obtains the Shear Strength Index of the soil body.
Application method of the utility model for the sample test of one-dimensional consolidation test is as follows:
Sample box installation: during one-dimensional consolidation test, lower box body is mounted on the platform of consolidation apparatus first, then
Upper cartridge body is placed, and passes through positioning pin for upper and lower box body position restriction；
Place sample: (being formed by cylinder shape groove and upper box through-hole) places saturating in the cylindrical space in the middle part of sample box
Water stone and filter paper.It is sampled with cutting ring, and soil sample is placed in cylindrical space and (is formed by cylinder shape groove and upper box through-hole),
Place filter paper and permeable stone；
Test sample: after sample is placed, top cover is placed on top, and apply vertical load, is measured with dial gauge perpendicular
To deflection, the void ratio under every level-one load is drawn in e-p coordinate system, is obtained the e-p curve of the soil body, is obtained the pressure of the soil body
Contracting index.
In order to confirm that the utility model can be used for the sample test of indoor geotechnological direct shear test, and it is suitable for one-dimensional consolidation
The sample test of test, and experimental results are not influenced, spy has carried out following test experiments.
Experimental section is as follows:
Test one, direct shear test
Traditional direct shear box (the straight instrument of SDJ-1A strain-type hand rocking electric (with matched direct shear box), Shaoxing is respectively adopted
City Kent mechano-electronic Co., Ltd) and the utility model progress direct shear test, every group of test 3 parallel laboratory test of progress, test
The results are shown in Table 1: carrying out significance analysis using SPSS19.0 software it is found that the soil sample measured using the utility model is cut
Stress is consistent with the shear stress experimental result of soil sample that traditional shear box measures, and there was no significant difference (P > 0.25), meets straight
The technical requirements of scissor test.
1 Keeping Shear Experiment Data of table
| Direct shear test (traditional shear box) | Duplicate Samples 1 | Duplicate Samples 2 | Duplicate Samples 3 | |
| Normal stress (kPa) | Shear stress | Shear stress | Shear stress | Average value |
| 100 | 97 | 99 | 94 | 97 |
| 200 | 213 | 209 | 211 | 211 |
| 300 | 289 | 280 | 285 | 285 |
| Direct shear test (the utility model) | Duplicate Samples 1 | Duplicate Samples 2 | Duplicate Samples 3 | |
| Normal stress (kPa) | Shear stress | Shear stress | Shear stress | Average value |
| 100 | 97 | 97 | 95 | 96 |
| 200 | 209 | 208 | 207 | 208 |
| 300 | 288 | 283 | 287 | 286 |
Experiment two, one-dimensional consolidation test
Traditional compression box is respectively adopted, and (the three high clean instrument of pressing (with matched compression box), Shaoxin City Kent is mechanical
Electronics Co., Ltd.) and the utility model progress one-dimensional consolidation test, every group of test 3 parallel laboratory test of progress, test result is such as
Shown in table 2: using SPSS19.0 software carry out significance analysis it is found that using the utility model measurement soil sample void ratio with
The void ratio experimental result of the soil sample of traditional compression box measurement is consistent, and there was no significant difference (P > 0.25), meets one-dimensional consolidation
The technical requirements of test.
2 consolidation test data of table
| One-dimensional consolidation tests (original sample box) | Duplicate Samples 1 | Duplicate Samples 2 | Duplicate Samples 3 | |
| Vertical load (kPa) | Void ratio | Void ratio | Void ratio | Average value |
| 50 | 0.623 | 0.644 | 0.638 | 0.635 |
| 100 | 0.585 | 0.601 | 0.592 | 0.593 |
| 200 | 0.543 | 0.552 | 0.547 | 0.547 |
| 400 | 0.512 | 0.498 | 0.507 | 0.506 |
| One-dimensional consolidation test (improves sample box) | Duplicate Samples 1 | Duplicate Samples 2 | Duplicate Samples 3 | |
| Vertical load (kPa) | Void ratio | Void ratio | Void ratio | Average value |
| 50 | 0.639 | 0.637 | 0.641 | 0.639 |
| 100 | 0.591 | 0.604 | 0.596 | 0.597 |
| 200 | 0.553 | 0.554 | 0.561 | 0.556 |
| 400 | 0.504 | 0.511 | 0.506 | 0.507 |
Claims (7)
1. a kind of visualization sample box for laboratory soil test, including upper cartridge body (1), lower box body (2), positioning pin (3), top
It covers (4), it is characterised in that:
Cylinder shape groove (21) are equipped among the lower box body (2), lower box body (2) edge is equipped with lower box limit hole (22)；
Upper box through-hole (11) is equipped among the upper cartridge body (1), upper cartridge body (1) edge is equipped with upper box limiting through hole (12), institute
Upper cartridge body (1) side is stated equipped with limit card slot (13)；
Top cover (4) are equipped with above the upper box through-hole (11)；
The cylinder shape groove (21) and upper box through-hole (11) diameter are equal, the lower box limit hole (22) and upper box limiting through hole
(12) pass through positioning pin (3) detachable connection；
The upper cartridge body (1) and lower box body (2) are transparent material.
2. a kind of visualization sample box for laboratory soil test according to claim 1, it is characterised in that: under described
Box body (2) is the intermediate rectangular parallelepiped structure for being equipped with cylinder shape groove, and it is right that the lower box limit hole (22) is respectively provided at lower box body (2)
The right angle answered；The upper cartridge body (1) is the intermediate rectangular parallelepiped structure for being equipped with upper box through-hole, and the upper box through-hole (11) sets respectively
In the corresponding right angle of upper cartridge body (1).
3. a kind of visualization sample box for laboratory soil test according to claim 1, it is characterised in that: the limit
Position card slot (13) is T-type card slot.
4. a kind of visualization sample box for laboratory soil test according to claim 1, it is characterised in that: on described
Box body (1) and lower box body (2) are made of organic glass.
5. a kind of visualization sample box for laboratory soil test according to claim 1, it is characterised in that: the circle
Permeable stone (5) are equipped with inside cylindrical groove (21).
6. a kind of visualization sample box for laboratory soil test according to claim 1, it is characterised in that: the circle
Cylindrical groove (21) internal diameter is 61.8mm, cylinder shape groove (21) the groove depth 17mm；The a height of 23cm of the upper cartridge body (1), institute
State lower box body (2) a height of 23mm.
7. a kind of visualization sample box for laboratory soil test according to claim 1, it is characterised in that: the circle
Cylindrical groove (21) bottom is equipped with drainage hole (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820986642.7U CN208254936U (en) | 2018-06-26 | 2018-06-26 | A kind of visualization sample box for laboratory soil test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820986642.7U CN208254936U (en) | 2018-06-26 | 2018-06-26 | A kind of visualization sample box for laboratory soil test |
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| Publication Number | Publication Date |
|---|---|
| CN208254936U true CN208254936U (en) | 2018-12-18 |
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| CN201820986642.7U Expired - Fee Related CN208254936U (en) | 2018-06-26 | 2018-06-26 | A kind of visualization sample box for laboratory soil test |
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| CN (1) | CN208254936U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108535093A (en) * | 2018-06-26 | 2018-09-14 | 内蒙古大学 | A kind of visualization sample box for laboratory soil test |
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2018
- 2018-06-26 CN CN201820986642.7U patent/CN208254936U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108535093A (en) * | 2018-06-26 | 2018-09-14 | 内蒙古大学 | A kind of visualization sample box for laboratory soil test |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181218 |
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| CF01 | Termination of patent right due to non-payment of annual fee |