CN206177510U - A multi -functional calibration device for miniature soil pressure cell - Google Patents
A multi -functional calibration device for miniature soil pressure cell Download PDFInfo
- Publication number
- CN206177510U CN206177510U CN201621242810.9U CN201621242810U CN206177510U CN 206177510 U CN206177510 U CN 206177510U CN 201621242810 U CN201621242810 U CN 201621242810U CN 206177510 U CN206177510 U CN 206177510U
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- China
- Prior art keywords
- reaction frame
- functional
- pressure cell
- soil pressure
- base plate
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 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 relates to a multi -functional calibration device for miniature soil pressure cell, including multi -functional bottom plate, locate reaction frame stand on the multi -functional bottom plate, locate reaction frame back timber on the reaction frame stand, locate reaction frame back timber below pressure sensor, locate the pressure sensor below hydraulic jack, locate a plurality of mark fixed cylinder that add carrier and diameter little -endian of hydraulic jack below, be equipped with the connection structure who is used for fixing the reaction frame back timber different positions on the reaction frame stand on the reaction frame stand. The utility model discloses a multi -functional calibration device for miniature soil pressure cell can carry out the experiment of soil mark respectively to same miniature soil pressure cell in different diameters mark fixed cylinder, pressure of the hierarchical loading difference of experimental equal accessible hydraulic jack is marked to every soil to reaching different diameters mark fixed cylinder and marking the influence of tentation data and the size and the trend of influence to soil, the problem that test device calibration coefficient randomness increases is marked to the soil of avoiding the technical staff to design.
Description
Technical field
This utility model is related to a kind of indoor model test device, more particularly, to determines miniature soil pressure in soil medium
The caliberating device of power box calibration coefficient.
Background technology
The measurement of soil pressure is frequently encountered in model test indoors, is commonly used miniature soil pressure cell and is carried out measurement model test soil
The size of soil pressure and distribution in body medium.More than commercially available miniature soil pressure cell using oil ga(u)ge or gas calibration method come
Determine calibration coefficient.However, substantial amounts of indoor model test shows that soil pressure cell can be produced in soil medium significantly should
Power collection neutralizes soil arching effect, so that its calibration coefficient in soil medium produces larger difference with oil ga(u)ge or gas mark, leads
Model-test data verity and accuracy is caused to ensure.Therefore, the soil mark test that miniature soil pressure cell is carried out indoors is right
There is preferable directive function in the data processing of model test.The device tested in the interior soil mark of miniature soil pressure cell both at home and abroad
It is random larger in design, there is no the assay device and test method of standard, cause calibration coefficient randomness to increase, it is same
There is larger difference in individual soil pressure cell gained calibration coefficient in the case of different equipments and operator.In addition, load mode is more
Using preloading or air pressure, the demarcation of the miniature soil pressure cell of wide range cannot be carried out for preloading, and air pressure-loading subtraction unit
Design is complicated, relatively costly.
Utility model content
Technical staff has found that the reasons for the above problems are through research, in the design of existing soil mark assay device,
Designer is not recognized in embedding manner, the demarcation cylinder of the dimensional effect, miniature soil pressure cell of demarcating cylinder in cylinder is demarcated
The impacts of the factor to calibration coefficient such as the property of the miniature upper and lower filled slope of soil pressure cell and miniature soil pressure cell adjacent material.
Therefore, technical staff wishes demarcating cylinder, demarcating miniature soil pressure cell filled slope different up and down in cylinder by different-diameter
And material of different nature carries out respectively the test of calibration coefficient to miniature soil pressure cell around miniature soil pressure cell, so as to
Go out above-mentioned different factors for miniature soil pressure cell calibration coefficient affects situation, for the design of indoor soil mark assay device with
And interior soil mark test is instructed, so as to solve the interior soil present in prior art in miniature soil pressure cell test is marked
It is random larger in device design, there is no the assay device and test method of standard, cause calibration coefficient randomness to increase,
There is larger difference in same soil pressure cell gained calibration coefficient in the case of different equipments and operator.But,
In prior art, shortage meets the multi-functional caliberating device for miniature soil pressure cell of use requirement.
The purpose of this utility model is for the deficiencies in the prior art, so as to provide many work(for miniature soil pressure cell
Can caliberating device.
To achieve these goals, the technical scheme that this utility model is adopted is：For many work(of miniature soil pressure cell
Can caliberating device, including multi-functional base plate, the reaction frame column on the multi-functional base plate, located at the reaction frame column
On reaction frame back timber, the pressure transducer below the reaction frame back timber, the liquid below the pressure transducer
The ascending multiple demarcation cylinders of pressure jack, the loaded member below the hydraulic jack and diameter, the counter-force
Erection post is provided with the attachment structure for the reaction frame back timber to be fixed on diverse location on reaction frame column.
Preferably, it is respectively provided with filled slope control chi on each inwall for demarcating cylinder.
Preferably, each cylinder inwall of demarcating is burnishing surface, and silicon layer is arranged on the burnishing surface, arranges poly- on the silicon layer
Tetrafluoroethene thin film.
Preferably, multiple locating slots that the demarcation cylinder is laid for correspondence are set on the multi-functional base plate, it is each described
Locating slot has identical geometric center and the geometric center is located on the loaded member axis.
Preferably, the plugging plate for blocking each locating slot is also included.
Preferably, fixing hole and the through wires hole connected with the fixing hole are set on the multi-functional base plate, it is described solid
Determine detachable setting on hole and block thin slice.
Preferably, it is provided for ensureing multiple leveling bolts of multi-functional base plate holding level on the multi-functional base plate.
Preferably, the loaded member is I shape load plate, including top board, column and base plate, the base plate by steel plate with
And be pasted onto steel plate bottom silica gel pressing plate constitute.
Preferably, the reaction frame back timber includes that reaction frame secondary beam and the reaction frame secondary beam two ends are detachably fixed company
The two reaction frame girders for connecing, the two ends of each reaction frame girder are fixedly connected with column sleeve, and the attachment structure is
The pin-and-hole equidistantly opened up on the reaction frame column, the column sleeve is by the bearing pin that is plugged on the column sleeve and institute
The fixation of the diverse location on the reaction frame column is realized in the cooperation for stating pin-and-hole.
Preferably, the perforate backing plate for being placed on the multi-functional base plate is also included.
This utility model hinge structure has substantive distinguishing features and progress, specifically, for miniature soil pressure cell
Multi-functional caliberating device, demarcate the cooperation of cylinder using the locating slot on multi-functional base plate and different-diameter, can be to same
Miniature soil pressure cell carries out respectively soil mark test in different-diameter demarcates cylinder, and each soil mark test can pass through hydraulic jack
The different pressure of hierarchical loading, so as to draw different-diameter demarcate cylinder to soil mark test data impact and impact size and
Trend, these results can be instructed the design of soil mark assay device and soil mark test so that technical staff can be with root
Suitable demarcation cylinder is chosen according to the error requirements of test demand and calibration coefficient, it is to avoid blindly using cylinder is demarcated, cause to demarcate system
The problem that number randomness increases, for the soil mark test that identical test is required, technical staff can choose phase according to above-mentioned guidance
Assay device together and test method, so as to draw consistent calibration coefficient.Meanwhile, reaction frame back timber is fixed on into counter-force and is erected
The loading structure that diverse location attachment structure and pressure transducer, hydraulic jack, loaded member are formed on post, can be carried out a large amount of
The test of the miniature soil pressure cell of journey, not only designs ingenious, simple structure, cheap, easy to operate, and solves existing skill
Preloading mode cannot carry out the problem of the rating test of the miniature soil pressure cell of wide range in art.
Further, each demarcation is respectively provided with filled slope control chi on cylinder inwall, and filled slope control chi can be simple
Effectively control the filled slope of miniature soil pressure cell above and below, the estimation of convenient loading sedimentation value, to draw difference
Size and trend of the filled slope to impact and the impact of soil mark test data, these results can be to soil mark assay device
Design and soil mark test are instructed.
Further, each cylinder inwall of demarcating is burnishing surface, and silicon layer is arranged on burnishing surface, and polytetrafluoro is arranged on silicon layer
Vinyl film, said structure greatly reduces the impact for demarcating cylinder inwall frictional force to rating test result.
Further, each locating slot has identical geometric center and the geometric center is located at the loaded member axis
On, prevent loading procedure acceptance of the bid safety barrel occur position skew and the error that produces.
Further, the plugging plate for blocking each locating slot is also included, plugging plate acts on big demarcation
During cylinder test, the locating slot that closure is demarcated inside cylinder, it is ensured that different-diameter demarcates the bottom surface for keeping demarcating in cylinder when cylinder is tested
It is smooth, this is extremely important to contrast test.
Further, fixing hole and the through wires hole connected with fixing hole are set on multi-functional base plate, can on fixing hole
Dismounting arranges closure thin slice, and the structure causes the multi-functional caliberating device of the present utility model can not only be to the miniature soil pressure of embedded type
Power box is tested but also embedded micro soil pressure cell can be tested, for the miniature soil pressure cell of embedded type is carried out
During test, only trial stretch need to have significantly been expanded with closure thin slice closure fixing hole, simple and ingenious structure.
Further, multiple leveling bolts are set on multi-functional base plate, for ensureing multi-functional base plate holding level, are prevented
Only there is the accuracy for affecting to test because multi-functional base plate is inclined.
Further, loaded member is I shape load plate, including top board, column and base plate, simple structure is lightweight,
Convenient on top board to arrange dial gauge, base plate is by steel plate and is pasted onto the silica gel pressing plate of steel plate bottom and constitutes so that during base plate is firm
Have soft, uniform force of banketing when ensure that and pushing.
Further, it is different on reaction frame column that the cooperation of column sleeve and attachment structure causes reaction frame back timber
The fixation of position, for the soil pressure cell of different ranges and when need different hydraulic jacks and sensor, Ke Yifang
The position of adjustment reaction frame back timber just, so as to suitably be loaded space, simple structure, low cost is easy to operate, very
It is practical.
Further, also include the perforate backing plate for being placed on the multi-functional base plate, select when test
The backing plate of different hardness or material is taken, to draw the property factor of embedded micro soil pressure cell adjacent material to calibration coefficient
Impact.
Description of the drawings
Fig. 1 is the structural representation of the multi-functional caliberating device for being used for miniature soil pressure cell in this utility model embodiment.
Fig. 2 is the structural representation of multi-functional base plate in this utility model embodiment.
Fig. 3 is the structural representation of this utility model embodiment acceptance of the bid safety barrel.
Fig. 4 is enlarged drawing at the A of Fig. 3.
Specific embodiment
Below by specific embodiment, the technical solution of the utility model is described in further detail.
For the embodiment of the multi-functional caliberating device of miniature soil pressure cell, as shown in figures 1-4, including multi-functional base plate
1st, on multi-functional base plate reaction frame column 2, the reaction frame back timber 3 on reaction frame column 2, located at reaction frame back timber
The pressure transducer 7 of 3 lower sections, the hydraulic jack 6 located at the lower section of pressure transducer 7, the loading below hydraulic jack 6
The ascending multiple demarcation cylinders 4 of part 5 and diameter, the present embodiment acceptance of the bid safety barrel is four, and diameter 200mm is respectively adopted,
The seamless steel pipe of 300mm, 350mm, 400mm is made, and it is 10mm to demarcate barrel thickness, and each demarcation on cylinder inwall is respectively provided with filled slope
Control chi 401, each cylinder inwall of demarcating is burnishing surface, and silicon layer is arranged on burnishing surface（Do not show in figure）, arrange on silicon layer poly-
Tetrafluoroethene thin film（Do not show in figure）, desirable number, required diameter can also be according to demand selected in other embodiments with
And the demarcation cylinder of required wall thickness；Reaction frame column 2 is provided with different for reaction frame back timber 3 to be fixed on reaction frame column 2
The attachment structure of position, in the present embodiment, reaction frame back timber 3 includes that reaction frame secondary beam 301 and reaction frame secondary beam two ends are detachable
Two reaction frame girders 302 being fixedly connected, the two ends of each reaction frame girder are fixedly connected with column sleeve 303, connection knot
Structure is the pin-and-hole 8 equidistantly opened up on reaction frame column 2, and column sleeve 8 is by the bearing pin and pin that are plugged on the column sleeve
The fixation of the diverse location on reaction frame column 2 is realized in the cooperation in hole 8；Arrange multiple for correspondence placement on multi-functional base plate 1
The locating slot 104 for demarcating cylinder, each locating slot 104 has identical geometric center and the geometric center is located at loaded member axis
On, in the present embodiment, locating slot 104 is circular trough, and geometric center is the center of circle of each circular trough, for miniature soil pressure cell
Multi-functional caliberating device is additionally provided with the plugging plate for blocking each locating slot 104（Do not show in figure）, the present embodiment it is multi-functional
Fixing hole 102 and the through wires hole 103 connected with fixing hole are set on base plate, it is detachable on fixing hole 102 that closure thin slice is set
（Do not show in figure）, so when testing embedded micro soil pressure cell, the bottom of embedded micro soil pressure cell is inserted
Enter fixing hole 102 and lead is through through wires hole 103, when needing to test the miniature soil pressure cell of embedded type, with envelope
Stifled thin slice blocks fixing hole 102；Four leveling bolts 101 are set on multi-functional base plate, for ensureing multi-functional base plate 1
Holding level, prevent affects the accuracy of test because multi-functional base plate 1 is inclined；In the present embodiment, loaded member 5 is I-shaped
Type load plate, including top board 501, column 502 and base plate, base plate is by steel plate 503 and is pasted onto the silica gel pressure of the bottom of steel plate 503
Plate 504 is constituted, and reaction frame column includes column body and is fixed on the connecting plate 9 of column body bottom portion, and connecting plate 9 passes through bolt
10 are detachably fixed and are connected on multi-functional base plate 1.
The multi-functional caliberating device for miniature soil pressure cell of the present embodiment, using the locating slot on multi-functional base plate with
Different-diameter demarcates the cooperation of cylinder, can respectively carry out soil mark examination in different-diameter demarcates cylinder to same miniature soil pressure cell
Test, each soil mark test can pass through the different pressure of hydraulic jack hierarchical loading, so as to show that it is right that different-diameter demarcates cylinder
The size and trend of impact and the impact of soil mark test data, these results can be to the design of soil mark assay device and soil
Mark test is instructed so that technical staff can choose suitable demarcation according to the error requirements of test demand and calibration coefficient
Cylinder, it is to avoid blindly using cylinder is demarcated, cause the problem of calibration coefficient randomness increase, for the soil mark examination that identical test is required
Test, technical staff can choose identical assay device and test method according to above-mentioned guidance, so as to draw consistent demarcation system
Number.Meanwhile, reaction frame back timber is fixed on into diverse location attachment structure and pressure transducer, hydraulic jack on reaction frame column
The loading structure that top, loaded member are formed, can carry out the test of the miniature soil pressure cell of wide range, not only design ingenious, simple structure,
It is cheap, it is easy to operate, and solve preloading mode in prior art and cannot carry out the mark of the miniature soil pressure cell of wide range
The problem of fixed test.
Filled slope control chi is respectively provided with each demarcation cylinder inwall of the present embodiment, filled slope control chi can simply have
The filled slope of the miniature soil pressure cell above and below of control of effect, the estimation of convenient loading sedimentation value, to show that difference is filled out
Size and trend of the soil thickness to impact and the impact of soil mark test data, these results can set to soil mark assay device
Meter and soil mark test are instructed；Each cylinder inwall of demarcating is burnishing surface, and silicon layer is arranged on burnishing surface, arranges poly- on silicon layer
Tetrafluoroethene thin film, said structure greatly reduces the impact for demarcating cylinder inwall frictional force to rating test result；Each locating slot
With identical geometric center and the geometric center be located at the loaded member axis on, prevent in loading procedure occur demarcate cylinder add
The skew that carries position and the error that produces, when acting on big demarcation cylinder and testing of plugging plate, the positioning that closure is demarcated inside cylinder
Groove, it is ensured that different-diameter is demarcated and keep the bottom surface demarcated in cylinder to be smooth when cylinder is tested, and this is extremely important to contrast test；
Fixing hole and the through wires hole connected with fixing hole are set on multi-functional base plate, it is detachable on fixing hole that closure thin slice is set, should
Structure multi-functional caliberating device of the present utility model can not only be tested the miniature soil pressure cell of embedded type but also
Embedded micro soil pressure cell can be tested, simple and ingenious structure has expanded trial stretch significantly；Loaded member is I-shaped
Type load plate, including top board, column and base plate, simple structure is lightweight, and convenient on top board to arrange dial gauge 11, base plate is by steel
Plate and be pasted onto steel plate bottom silica gel pressing plate constitute so that have soft during base plate is firm, stress of banketing when ensure that and pushing is equal
It is even；The cooperation of column sleeve and attachment structure causes the fixation that reaction frame back timber is the diverse location on reaction frame column, for
When the different hydraulic jacks of soil pressure cell and needs of different ranges and sensor, in that context it may be convenient to adjust reaction frame top
The position of beam, so as to suitably be loaded space, simple structure, low cost is easy to operate, very useful；Reaction frame column
Including column body and the connecting plate for being fixed on column body bottom portion, connecting plate be detachably fixed by bolt be connected to it is multi-functional
On base plate, dismount easy to maintenance.
It is unlike the embodiments above in other embodiment of the present utility model, the counter-force sortie of reaction frame back timber
Beam and two reaction frame girders can also be wholely set；It is unlike the embodiments above in other embodiment of the present utility model
, the loaded member below hydraulic jack can also be steel column；It is and above-mentioned in other embodiment of the present utility model
Unlike embodiment, also include the perforate backing plate for being placed on the multi-functional base plate, choose not when test
With hardness or the backing plate of material, to draw shadow of the property factor of embedded micro soil pressure cell adjacent material to calibration coefficient
Ring.
Finally it should be noted that:Above example is only to illustrate the technical solution of the utility model rather than it is limited
System；Although being described in detail to this utility model with reference to preferred embodiment, those of ordinary skill in the art should
Understand：Still specific embodiment of the present utility model can be modified or equivalent is carried out to some technical characteristics and be replaced
Change；Without deviating from the spirit of technical solutions of the utility model, it all should cover the technical scheme being claimed in this utility model
In the middle of scope.
Claims (10)
1. the multi-functional caliberating device of miniature soil pressure cell is used for, it is characterised in that:Including multi-functional base plate, located at many work(
Reaction frame column that can be on base plate, the reaction frame back timber on the reaction frame column, located at reaction frame back timber lower section
Pressure transducer, the hydraulic jack below the pressure transducer, the loading below the hydraulic jack
The ascending multiple demarcation cylinders of part and diameter, the reaction frame column is provided with for the reaction frame back timber to be fixed on
The attachment structure of diverse location on reaction frame column.
2. the multi-functional caliberating device for miniature soil pressure cell according to claim 1, it is characterised in that：Each mark
Filled slope control chi is respectively provided with the inwall of safety barrel.
3. the multi-functional caliberating device for miniature soil pressure cell according to claim 2, it is characterised in that：It is each to demarcate cylinder
Inwall is burnishing surface, and silicon layer is arranged on the burnishing surface, and on the silicon layer polytetrafluoroethylene film is arranged.
4. the multi-functional caliberating device for miniature soil pressure cell according to claim 1 or 2 or 3, it is characterised in that：Institute
State and multiple locating slots that the demarcation cylinder is laid for correspondence are set on multi-functional base plate, each locating slot has identical several
What center and geometric center is located on the loaded member axis.
5. the multi-functional caliberating device for miniature soil pressure cell according to claim 4, it is characterised in that：Also include using
In the plugging plate for blocking each locating slot.
6. the multi-functional caliberating device for miniature soil pressure cell according to claim 1 or 2 or 3 or 5, its feature exists
In：Fixing hole and the through wires hole connected with the fixing hole are set on the multi-functional base plate, it is detachable on the fixing hole
Closure thin slice is set.
7. the multi-functional caliberating device for miniature soil pressure cell according to claim 1 or 2 or 3 or 5, its feature exists
In：It is provided for ensureing multiple leveling bolts of multi-functional base plate holding level on the multi-functional base plate.
8. the multi-functional caliberating device for miniature soil pressure cell according to claim 1 or 2 or 3 or 5, its feature exists
In：The loaded member is I shape load plate, including top board, column and base plate, and the base plate is by steel plate and is pasted onto steel plate
The silica gel pressing plate of bottom is constituted.
9. the multi-functional caliberating device for miniature soil pressure cell according to claim 1 or 2 or 3 or 5, its feature exists
In：The reaction frame back timber includes that reaction frame secondary beam and the reaction frame secondary beam two ends are detachably fixed two counter-forces of connection
Frame girder, the two ends of each reaction frame girder are fixedly connected with column sleeve, and the attachment structure is in the reaction frame
The pin-and-hole equidistantly opened up on column, the column sleeve is by being plugged in the cooperation of the bearing pin on the column sleeve and the pin-and-hole
Realize the fixation of the diverse location on the reaction frame column.
10. the multi-functional caliberating device for miniature soil pressure cell according to claim 1 or 2 or 3 or 5, its feature exists
In：Also include the perforate backing plate for being placed on the multi-functional base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621242810.9U CN206177510U (en) | 2016-11-21 | 2016-11-21 | A multi -functional calibration device for miniature soil pressure cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621242810.9U CN206177510U (en) | 2016-11-21 | 2016-11-21 | A multi -functional calibration device for miniature soil pressure cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206177510U true CN206177510U (en) | 2017-05-17 |
Family
ID=58687060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621242810.9U Withdrawn - After Issue CN206177510U (en) | 2016-11-21 | 2016-11-21 | A multi -functional calibration device for miniature soil pressure cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206177510U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404280A (en) * | 2016-11-21 | 2017-02-15 | 郑州大学 | Multifunctional calibration device for miniature earth pressure box |
| CN107328522A (en) * | 2017-08-09 | 2017-11-07 | 武汉科技大学 | A kind of soil pressure cell caliberating device and its application method |
-
2016
- 2016-11-21 CN CN201621242810.9U patent/CN206177510U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404280A (en) * | 2016-11-21 | 2017-02-15 | 郑州大学 | Multifunctional calibration device for miniature earth pressure box |
| CN107328522A (en) * | 2017-08-09 | 2017-11-07 | 武汉科技大学 | A kind of soil pressure cell caliberating device and its application method |
| CN107328522B (en) * | 2017-08-09 | 2019-06-25 | 武汉科技大学 | A kind of soil pressure cell caliberating device and its application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170517 Effective date of abandoning: 20171201 |
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| AV01 | Patent right actively abandoned |