CN206638666U - A kind of soil sample expands force checking device - Google Patents
A kind of soil sample expands force checking device Download PDFInfo
- Publication number
- CN206638666U CN206638666U CN201720150926.8U CN201720150926U CN206638666U CN 206638666 U CN206638666 U CN 206638666U CN 201720150926 U CN201720150926 U CN 201720150926U CN 206638666 U CN206638666 U CN 206638666U
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- hole
- base
- top cover
- crossbeam
- soil sample
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A kind of soil sample expands force checking device, including base, base is the structure with cylinder shape groove, base top surface is provided with least two fixation holes, the insertion of pole lower end is fixed in fixation holes, pole upper end is located in the third through-hole of crossbeam both sides, and crossbeam is equipped with location nut up and down what pole passed through on both sides；The circular collar is provided with the cylinder shape groove of base, top cover is provided with above the collar, crossbeam is provided with fourth hole, and screw rod lower end is connected through fourth hole and with the pressure sensor that top cover upper end is set.Using said structure, can Volume Changes of the Control Assay in water absorption course, ensure the constant of volume of sample, realize the measurement of expansive force change of the different volumes sample during water swelling.
Description
Technical field
It the utility model is related to real geotechnique and test apparatus field, particularly a kind of soil sample expansion force checking device.
Background technology
Padded coaming plays engineering barrier, hydraulics barrier and conductor in high-level waste depth geological disposal storehouse and made
With, the stability for disposing library structure should be able to be safeguarded, blocks the seepage flow of underground water, and to the good heat transfer of radiant heat and expansion
Dissipate effect.Bentonite is because being preferable buffering backfill material with extremely low permeability, high adsorptivity and expansion self-healing performance
Expect major ingredient.
In Nuclear waste disposal system, bentonite water swelling produces huge expansive force and makes it have lower infiltration
Property.For the influence factor of expansive force, many scholars have done numerous studies, show the dry density after the compacting of expansive force and sample,
The factor such as ionic strength, initial water content and temperature is relevant.But rarely researcher goes to probe into expansive force in itself from experiment
Influence factor, size as samples.Due to permeability reduction after bentonite immersion expansion, sample is caused to occur " in exogenous damp
It is dry " phenomenon, particularly when carrying out permeability test, experiment it is time-consuming with the thickness of sample in a square secondary relation.In order to shorten
Sample is made 0.5cm thickness by test period, many researchers, and using the sample that 2cm is thick, institute in international soil test method
It is necessary with probing into influence of the specimen size size to expansive force, while needs to take other means to shorten experiment week
Phase.
The content of the invention
Technical problem to be solved in the utility model is to provide a kind of soil sample expansion force checking device, being capable of Control Assay
Volume Changes in water absorption course, ensure the constant of volume of sample, realize different volumes sample during water swelling
The measurement of expansive force change.
In order to solve the above technical problems, technical scheme is used by the utility model：A kind of soil sample expansive force detection dress
Put, including base, base are the structure with cylinder shape groove, base top surface is provided with least two fixation holes, pole
Lower end insertion is fixed in fixation holes, and pole upper end is located in the third through-hole of crossbeam both sides, and crossbeam passes through in pole
Location nut is equipped with upper and lower both sides；
The circular collar is provided with the cylinder shape groove of base, is provided with top cover above the collar, crossbeam is provided with four-way
Hole, screw rod lower end are connected through fourth hole and with the pressure sensor that top cover upper end is set.
In preferable scheme, described fourth hole is screwed hole, and screw rod outer wall is provided with external screw thread, screw rod and crossbeam
Between connection is relatively fixed by screw thread.
In preferable scheme, the first ladder is provided with the cylinder shape groove of described base, the collar is fixedly installed on first
On ladder.
In preferable scheme, it is uniformly distributed in the side wall of the first described ladder provided with multiple first through hole, first through hole
Connect the groove and chassis outer side of base.
In preferable scheme, described top cover is also the structure with cylinder shape groove, is uniformly divided in the side wall of top cover
Multiple second through holes are laid with, the second through hole connects the groove and outside of top cover of top cover.
In preferable scheme, cutting ring is provided with the space that described base, the collar and top cover are formed, cutting ring upper and lower side is also
It is respectively equipped with a permeable stone.
In preferable scheme, described screw rod includes rotary handle and threaded post, rotary handle perpendicular to threaded post and
Screw thread top end is arranged on, threaded post is threadedly coupled with the fourth hole on crossbeam.
A kind of soil sample expansion force checking device provided by the utility model, by using said structure, has with following
Beneficial effect：
（1）Base and top cover are designed with into water or water outlet hole, are accelerated sample immersion saturation, are shortened experimental period；
（2）Crossbeam can both fix sample and pressure sensor, can function as reaction frame and pass to sample expansive force
Pressure sensor；
（3）Various sizes of sample can be selected to be realized, become so as to measure the water swelling power of different sized samples
Change, the relation between specimen size and expansive force is studied.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples：
Fig. 1 is overall cross-sectional view of the present utility model.
Fig. 2 is base dimensional structure diagram of the present utility model.
Fig. 3 is top cover dimensional structure diagram of the present utility model.
Fig. 4 is crossbeam dimensional structure diagram of the present utility model.
Fig. 5 is the structural representation of screw rod of the present utility model.
In figure：Base 1, the collar 2, top cover 3, crossbeam 4, screw rod 5, pole 6, pressure sensor 7, cutting ring 8, permeable stone 9,
First ladder 101, first through hole 102, fixation holes 103, the second through hole 301, third through-hole 401, fourth hole 402, rotation
Handle 501, threaded post 502.
Embodiment
In such as figure, a kind of soil sample expands force checking device, including base 1, base 1 are the structure with cylinder shape groove
Body, the top surface of base 1 are provided with least two fixation holes 103, and the insertion of the lower end of pole 6 is fixed in fixation holes 103, pole 6
Upper end is located in the third through-hole 401 of the both sides of crossbeam 4, and crossbeam 4 is equipped with positioning spiral shell up and down what pole 6 passed through on both sides
It is female；
It is provided with the circular collar 2 in the cylinder shape groove of base 1, the top of the collar 2 is provided with top cover 3, and crossbeam 4 is provided with the
Four through holes 402, the lower end of screw rod 5 are connected through fourth hole 402 and with the pressure sensor 7 that the upper end of top cover 3 is set.
In preferable scheme, described fourth hole 402 is screwed hole, and the outer wall of screw rod 5 is provided with external screw thread, screw rod 5
It is relatively fixed and is connected by screw thread between crossbeam 4.Using being threadedly coupled between screw rod 5 and crossbeam 4, realize that both is relative
It is fixed, so as to realize fixation of the screw rod 5 to top cover 3 and pressure sensor 7.
In preferable scheme, the first ladder 101 is provided with the cylinder shape groove of described base 1, the collar 2 is fixedly installed on
On first ladder 101.
In preferable scheme, it is uniformly distributed in the side wall of the first described ladder 101 provided with multiple first through hole 102, the
The groove of one through hole 102 connection base 1 and the outside of base 1.
In preferable scheme, described described top cover 3 is also the structure with cylinder shape groove, the side wall of top cover 3
On be uniformly distributed provided with multiple second through holes 301, groove and the outside of top cover 3 of the second through hole 301 connection top cover 3.Described
One through hole 102 and the second through hole 301 accelerate sample immersion saturation, shorten experimental period.
In preferable scheme, cutting ring 8 is provided with the space that described base 1, the collar 2 and top cover 3 are formed, on cutting ring 8
Lower end further respectively has a permeable stone 9.Using said structure, it is less than bulk between top cover and base in specimen size
When, filled up using permeable stone, ensure the stability of sample, the specific size of permeable stone is selected according to experimental sample size
Select.
In preferable scheme, described screw rod 5 includes rotary handle 501 and threaded post 502, and rotary handle 501 is vertical
In threaded post 502 and the top of threaded post 502 is arranged on, threaded post 502 is threadedly coupled with the fourth hole 402 on crossbeam 4.
Concrete operation step of the present utility model is as follows：
1）The base 1 of specification, the collar 2, top cover 3, cutting ring 8 and permeable stone 9 according to needed for being chosen test requirements document, and
Matching used crossbeam 4, screw rod 5, pole 6 and pressure sensor 7；
2）Base 1 and crossbeam 4 are assembled by pole 6, one piece of permeable stone is positioned in base 1；
3）The collar 2 is placed on the first ladder 101, then by the sample in the cutting ring 8 to have completed and cutting ring 8 together
It is slowly pushed into the collar 2, the lower end of cutting ring 8 contacts with the permeable stone 9 in base 1；Then it is saturating in the upper ends identical of cutting ring 8
Water stone 9, top cover 3；
4）After the completion of filling sample, pressure sensor 7 is positioned over the top of top cover 3, movable screw rod 5 is passed through into fourth hole
402 and pressure sensor 7 on fixation holes, constantly rotate fixation pressure sensor 7, be that it is close with following dress sample part
Connection；
5）Whole measurement apparatus is placed in the container being filled with water, the water surface needs to be higher than top cover 3, by pressure sensor 7 and number
It is connected according to collector, measures the pressure change of experiment；
6）After the expansion of sample saturation, the expansive force of sample is finally measured；
7）Provision for disengagement after off-test, clean all accessories.
Using said structure, the research to relation between specimen size and expansive force is realized, while shortens experiment week
Phase.
Claims (7)
1. a kind of soil sample expands force checking device, including base（1）, it is characterized in that：Base（1）For the knot with cylinder shape groove
Structure body, base（1）Top surface is provided with least two fixation holes（103）, pole（6）Lower end insertion is fixed on fixation holes
（103）In, pole（6）Upper end is located in crossbeam（4）The third through-hole of both sides（401）It is interior, crossbeam（4）In pole（6）Pass through
Location nut is equipped with upper and lower both sides；
Base（1）Cylinder shape groove in be provided with the circular collar（2）, the collar（2）Top is provided with top cover（3）, crossbeam（4）On
Provided with fourth hole（402）, screw rod（5）Lower end passes through fourth hole（402）And and top cover（3）The pressure sensing that upper end is set
Device（7）Connection.
A kind of 2. soil sample expansion force checking device according to claim 1, it is characterised in that：Described fourth hole
（402）For screwed hole, screw rod（5）Outer wall is provided with external screw thread, screw rod（5）With crossbeam（4）Between be relatively fixed by screw thread
Connection.
A kind of 3. soil sample expansion force checking device according to claim 1, it is characterised in that：Described base（1）Circle
The first ladder is provided with cylindrical groove（101）, the collar（2）It is fixedly installed on the first ladder（101）On.
A kind of 4. soil sample expansion force checking device according to claim 3, it is characterised in that：The first described ladder
（101）Side wall on be uniformly distributed provided with multiple first through hole（102）, first through hole（102）Connect base（1）Groove and bottom
Seat（1）Outside.
A kind of 5. soil sample expansion force checking device according to claim 4, it is characterised in that：Described top cover（3）Also it is
Structure with cylinder shape groove, top cover（3）Side wall on be uniformly distributed provided with multiple second through holes（301）, the second through hole
（301）Connect top cover（3）Groove and top cover（3）Outside.
A kind of 6. soil sample expansion force checking device according to claim 1, it is characterised in that：Described base（1）, the collar
（2）And top cover（3）Cutting ring is provided with the space formed（8）, cutting ring（8）Upper and lower side further respectively has a permeable stone（9）.
A kind of 7. soil sample expansion force checking device according to claim 2, it is characterised in that：Described screw rod（5）Bag
Include rotary handle（501）And threaded post（502）, rotary handle（501）Perpendicular to threaded post（502）And it is arranged on threaded post
（502）Top, threaded post（502）With crossbeam（4）On fourth hole（402）Threaded connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720150926.8U CN206638666U (en) | 2017-02-20 | 2017-02-20 | A kind of soil sample expands force checking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720150926.8U CN206638666U (en) | 2017-02-20 | 2017-02-20 | A kind of soil sample expands force checking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206638666U true CN206638666U (en) | 2017-11-14 |
Family
ID=60252479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720150926.8U Expired - Fee Related CN206638666U (en) | 2017-02-20 | 2017-02-20 | A kind of soil sample expands force checking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206638666U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108663270A (en) * | 2018-03-30 | 2018-10-16 | 青岛理工大学 | A kind of soft rock lateral expansion analyzer |
| CN114527040A (en) * | 2022-03-03 | 2022-05-24 | 邱俊 | Water permeability sleeve device for indoor test |
-
2017
- 2017-02-20 CN CN201720150926.8U patent/CN206638666U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108663270A (en) * | 2018-03-30 | 2018-10-16 | 青岛理工大学 | A kind of soft rock lateral expansion analyzer |
| CN114527040A (en) * | 2022-03-03 | 2022-05-24 | 邱俊 | Water permeability sleeve device for indoor test |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171114 Termination date: 20190220 |