CN106706446A - Multifunctional direct shear apparatus - Google Patents
Multifunctional direct shear apparatus Download PDFInfo
- Publication number
- CN106706446A CN106706446A CN201611186830.3A CN201611186830A CN106706446A CN 106706446 A CN106706446 A CN 106706446A CN 201611186830 A CN201611186830 A CN 201611186830A CN 106706446 A CN106706446 A CN 106706446A
- Authority
- CN
- China
- Prior art keywords
- box body
- lower box
- direct shear
- shear apparatus
- hydraulic jack
- Prior art date
- 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.)
- Pending
Links
- 238000003825 pressing Methods 0.000 claims description 13
- 238000005096 rolling process Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000002689 soil Substances 0.000 abstract description 63
- 238000012360 testing method Methods 0.000 abstract description 12
- 239000002245 particle Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 238000010008 shearing Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
Abstract
The invention discloses a multifunctional direct shear apparatus which comprises a bracket, a longitudinal power device, a transverse power device, an upper box body and a lower box body, wherein the longitudinal power device and the upper box body are fixedly mounted on the bracket; the upper box body and the lower box body are arranged below the bracket; the lower box body can slide relatively to the upper box body; a through hole is formed in the upper box body; a groove corresponding to the size and the position of the through hole is formed in the lower box body; the power output end of the longitudinal power device can be fed into or withdrawn out from the through hole; the power output end of the transverse power device is propped against a side surface of the lower box body. When the multifunctional direct shear apparatus is adopted for shear force testing, under the action that the lower box body is subjected to horizontal force of the transverse power device, as no gap is formed between a soil sample and the through hole and the groove, the force exerted to the soil sample by the transverse power device is constantly perpendicular to the soil sample, the testing strength can be relatively approximate to actual testing strength, small errors can be caused, and the accuracy is high.
Description
Technical field
The present invention relates to a kind of direct shear apparatus, a kind of multi-functional direct shear apparatus is referred in particular to.
Background technology
Direct shear apparatus, abbreviation direct shear apparatus, its effect is for carrying out direct shear test to object.Under construction, pass through
Often need to carry out strength detection to the soil sample for preparing.It is that soil particle is placed on soil to the soil sample that soil sample intensity is measured now
By being formed after compacting on sample pattern making equipment, the soil sample that then will be prepared again is positioned over the recessed of upper box on direct shear apparatus and lower box
Shearing test is carried out in groove to determine its intensity data.But this kind of soil sample of structure is in order to be able to be put into groove, the chi of soil sample
The very little size for being necessarily less than groove so that there is gap between soil sample and the inwall of groove.When soil sample measure is carried out, lower box
The bottom of soil sample is extruded relative to the slip of upper box level.In this process, due to existing between soil sample and the inwall of groove
Gap, soil sample is extruded by lower box and produces inclination so that the horizontal applied force that lower box applies to the bottom of soil sample then not with soil
Sample is vertical, so that the result for determining occurs that error is larger, the situation of Stability and veracity difference.
The content of the invention
Existing due to there is gap between soil sample and the inwall of groove it is an object of the invention to solve, soil sample is by lower box
It is extruded and produces inclination so that lower box is not then vertical with soil sample to the horizontal applied force that the bottom of soil sample applies, so that
The result of measure occurs that error is larger, Stability and veracity difference problem, there is provided one kind collection molding and shearing test one,
Accuracy self-balancing type direct shear apparatus high and easy to use.
The purpose of the present invention can be reached using following technical scheme：
A kind of multi-functional direct shear apparatus, including support, Longitudinal device, lateral dynamics device, upper cartridge body and lower box body, institute
State Longitudinal device and upper cartridge body is fixedly installed on the support, the upper cartridge body and lower box body are under the support
Side, and the lower box body can slide relative to the upper cartridge body；Through hole is provided with the upper cartridge body, be provided with the lower box body with
The hole size groove corresponding with position；The clutch end of the Longitudinal device can enter or exit described logical
Hole, the side of lower box body described in the clutch end top pressure of the lateral dynamics device；
As a kind of preferred scheme, the Flexible film for storing water is provided with below the lower box body；Flexible film to
On when being opened, the Flexible film envelopes the upper cartridge body and lower box body.
Used as a kind of preferred scheme, the Longitudinal device includes the first hydraulic jack, the first pressing plate and is used for
The first sensor of the power output size of the first hydraulic jack is detected, first pressing plate is slidably sheathed on the through hole
It is interior, and first pressing plate is fixedly installed on the piston rod of first hydraulic jack.
Used as a kind of preferred scheme, the lateral dynamics device includes the second hydraulic jack and for detecting the second liquid
Press the second sensor of the power output size of jack, lower box described in the horizontal top pressure of piston rod of second hydraulic jack
Body.
Used as a kind of preferred scheme, the side of the lower box body is provided with plane boss, second hydraulic jack
The horizontal top pressure of piston rod on the plane boss.
Used as a kind of preferred scheme, the support is " H " type structure, including located at the vertical beam of both sides, and laterally
The crossbeam on the vertical beam is fixedly installed in, the two ends of the crossbeam are fixedly connected with the vertical beam of both sides respectively；It is described vertical
Be fixedly installed on the crossbeam to power set, and the Longitudinal device clutch end straight down.
Used as a kind of preferred scheme, the lower box body lower section is provided with rolling mechanism, and the lower box body passes through rolling mechanism
Level is slided.
Further, the rolling mechanism includes fixed block, ball and limiting plate, if the upper surface of the fixed block is provided with
Dry bar groove, the ball is rotatably mounted in the groove；It is provided with the limiting plate corresponding with the grooved position
Groove；Less than the diameter of ball, the limiting plate is covered on the upper surface of fixed block the width of the groove, and the rolling
The upper end of pearl overhangs the upper surface of the limiting plate by groove.
Implement the present invention, have the advantages that：
1st, can from level to level insert soil particle in through hole of the invention and groove and after often inserting one layer by the dynamic dress in longitudinal direction
Put and multilayer soil particle is compacted and is prepared into soil sample.The soil sample that the process is made it is mutually close with through hole and groove socket and gapless.
When shear test is carried out, in the presence of lateral dynamics device is to lower box body applying level, due to soil sample and through hole and groove it
Between gapless so that lateral dynamics device the power that soil sample applies is always maintained at it is vertical with soil sample so that determine intensity
Can preferably with it is actual close, error is small, and accuracy is high, solve it is existing due to existing between soil sample and the inwall of groove between
Gap, soil sample is extruded by lower box and produces inclination so that the horizontal applied force that lower box applies to the bottom of soil sample then not with soil sample
Vertically, so that the result for determining occurs that error is larger, the problem of Stability and veracity difference.
2nd, the technique that the present invention can carry out multilayer compacting to soil particle by Longitudinal device makes, and prepares soil sample,
And without taking out and soil sample can be made a strength test after the completion of preparation, it is ensured that the integrality of soil sample, so as to ensure that survey
Measure the accuracy of data.And continuity is good between two processes, wasted without the unnecessary time, drastically increase the side of work
Just property and efficiency, collect molding and shearing test one, save the time of work, accuracy and high working efficiency.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of multi-functional direct shear apparatus of the invention；
Fig. 2 is the partial enlarged drawing in the A portions of Fig. 1.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Embodiment
Reference picture 1, the present embodiment is related to direct shear apparatus, including support 1, Longitudinal device 2, lateral dynamics device 3, upper box
Body 4 and lower box body 5, the Longitudinal device 2 and upper cartridge body 4 are fixedly installed on the support 1, and the upper cartridge body 4 is with
Box body 5 can be slided located at the lower section of the support 1, and the lower box body 5 relative to the upper cartridge body 4；Opened on the upper cartridge body 4
There is through hole 41, the groove 51 corresponding with the size and location of the through hole 41 is provided with the lower box body 5；The Longitudinal dress
The clutch end for putting 2 can enter or exit the through hole 41, described in the clutch end top pressure of the lateral dynamics device 3 under
The side of box body 5.
Can from level to level insert loose soil particle and pass through after often inserting one layer in the through hole 41 and groove 51 of the structure
Be compacted for multilayer soil particle and soil sample is prepared into by the dynamic device in longitudinal direction.The soil sample that the process is made and through hole 41 and the mutually close set of groove 51
Connect and gapless.When shear test is carried out, in the presence of lateral dynamics device 3 is to the applying level of lower box body 5, due to soil sample with
Gapless between through hole 41 and groove 51 so that lateral dynamics device 3 power that soil sample applies is always maintained at it is vertical with soil sample, from
And enable the intensity that determines preferably with it is actual close, error is small, and accuracy is high, solves existing due to soil sample and groove 51
There is gap between inwall, soil sample is extruded by lower box and produces inclination so that the level that lower box applies to the bottom of soil sample
Active force is not then vertical with soil sample, so that the result for determining occurs that error is larger, the problem of Stability and veracity difference.
In addition, the technique that the structure can carry out multilayer compacting to soil particle by Longitudinal device 2 makes, prepare and be unearthed
Sample, and without taking out and soil sample can be made a strength test after the completion of preparation, it is ensured that the integrality of soil sample, so as to ensure that
The accuracy of measurement data.And continuity is good between two processes, wasted without the unnecessary time, drastically increase work
Convenience and efficiency, collection molding and shearing test one, save the time of work, accuracy and high working efficiency.
The lower section of the lower box body 5 is provided with the Flexible film 6 for storing water；It is described to stretch when Flexible film 6 is opened upwards
Contracting film 6 envelopes the upper cartridge body 4 and lower box body 5.The need in order to adapt to the soil sample being made up of different soil property particles, in longitudinal direction
After power set 2 prepare soil sample in through hole 41 and groove 51, Flexible film 6 can be pulled upwardly and be internally formed receiving space simultaneously
Upper cartridge body 4 and lower box body 5 are all enveloped, then toward water is injected in receiving space, is completely sunk in the water sample, realized
Soil sample absorbs water and reaches the state of saturation.
The Longitudinal device 2 includes the first hydraulic jack 21, the first pressing plate 22 and for detecting the first hydraulic pressure thousand
The first sensor of the power output size on jin top 21, first pressing plate 22 is slidably sheathed in the through hole 41, and described
First pressing plate 22 is fixedly installed on the piston rod of first hydraulic jack 21.First hydraulic jack 21 drives first to press
Plate 22 is stretched into through hole 41 and groove 51, the soil for making 22 pairs of each layers entered in groove 51 and through hole 41 of the first pressing plate loose
Grain is compacted and is formed firm and consolidation soil sample, so as to carry out intensity of shear experiment to the soil sample for being formed.Described first
The diameter of pressing plate 22 and through hole 41 and the equal diameters of groove 51, and the first pressing plate 22 can the slip in groove 51 and through hole 41.
Can be uniformly applied to the power that first hydraulic jack 21 applies on soil particle layer by the first pressing plate 22, it is ensured that inside soil sample
Solid degree is uniform, to improve the data accuracy of soil sample intensity.
The lateral dynamics device 3 includes the second hydraulic jack 31 and the output for detecting the second hydraulic jack 31
The second sensor of power size, lower box body 5 described in the horizontal top pressure of piston rod of second hydraulic jack 31.In the second hydraulic pressure
In the presence of jack 31, lower box body 5 is slided horizontally relative to upper cartridge body 4, and is located at upper box respectively to upper and lower part respectively
Soil sample in body 4 and lower box body 5 is sheared, so as to draw the intensity of shear of soil sample.
The side of the lower box body 5 is provided with plane boss 52, the piston rod level top of second hydraulic jack 31
It is pressed on the plane boss 52.In the presence of plane boss 52, the applying power energy of the piston rod of the second hydraulic jack 31
It is uniformly applied on plane boss 52 so that lower box body 5 has by uniform horizontal force, has both improve the accuracy of measure,
In turn ensure that lower box body 5 will not be destroyed because stress is excessively concentrated.
The support 1 is " H " type structure, including located at the vertical beam 11 of both sides, and be laterally fixedly installed in described perpendicular
Crossbeam 12 on straight beam 11, the two ends of the crossbeam 12 are fixedly connected with the vertical beam 11 of both sides respectively；The Longitudinal dress
2 are put to be fixedly installed on the crossbeam 12, and the Longitudinal device 2 clutch end straight down.The horizontal stroke of the structure
Beam 12 plays a part of support to Longitudinal device 2 in the firm lower of both sides vertical beam 11, is that Longitudinal device 2 is provided
Firm support force.
In order to reduce the external drag when level of lower box body 5 is slided, as shown in Fig. 2 the lower section of the lower box body 5 is provided with rolling
Mechanism, the lower box body 5 is slided by rolling mechanism level.
The rolling mechanism includes fixed block 71, ball 72 and limiting plate 73, if the upper surface of the fixed block 71 is provided with
Dry bar groove 711, the ball 72 is rotatably mounted in the groove 711；It is provided with the limiting plate 73 and the groove
The corresponding groove 74 in 711 positions；The width of the groove 74 is less than the diameter of ball 72, and the limiting plate 73 is covered in fixation
On the upper surface of block 71, and the upper end of the ball 72 passes through the upper surface that groove 74 overhangs the limiting plate 73.Ball 72
In the presence of limiting plate 73, can only be rolled in groove 711.When lower box body 5 is slided on ball 72, ball 72 can
Greatly reduce the friction that lower box body 5 is slided.
Above disclosed is only a kind of preferred embodiment of the invention, can not limit the power of the present invention with this certainly
Sharp scope, therefore the equivalent variations made according to the claims in the present invention, still belong to the scope that the present invention is covered.
Claims (8)
1. a kind of multi-functional direct shear apparatus, it is characterised in that：Including support, Longitudinal device, lateral dynamics device, upper cartridge body and
Lower box body, the Longitudinal device and upper cartridge body are fixedly installed on the support, and the upper cartridge body and lower box body are located at institute
The lower section of support is stated, and the lower box body can be slided relative to the upper cartridge body；Through hole, the lower box are provided with the upper cartridge body
The groove corresponding with the hole size and position is provided with body；The clutch end of the Longitudinal device can enter or
The through hole is exited, the side of lower box body described in the clutch end top pressure of the lateral dynamics device.
2. a kind of multi-functional direct shear apparatus according to claim 1, it is characterised in that：Be provided with below the lower box body for
Store the Flexible film of water；When Flexible film is opened upwards, the Flexible film envelopes the upper cartridge body and lower box body.
3. a kind of multi-functional direct shear apparatus according to claim 1, it is characterised in that：The Longitudinal device includes first
Hydraulic jack, the first pressing plate and the first sensor for detecting the power output size of the first hydraulic jack, described first
Pressing plate is slidably sheathed in the through hole, and first pressing plate is fixedly installed in the piston rod of first hydraulic jack
On.
4. a kind of multi-functional direct shear apparatus according to claim 1, it is characterised in that：The lateral dynamics device includes second
Hydraulic jack and the second sensor for detecting the power output size of the second hydraulic jack, second hydraulic jack
The horizontal top pressure of piston rod described in lower box body.
5. a kind of multi-functional direct shear apparatus according to claim 4, it is characterised in that：The side of the lower box body is provided with flat
Face boss, the horizontal top pressure of piston rod of second hydraulic jack is on the plane boss.
6. a kind of multi-functional direct shear apparatus according to claim 1, it is characterised in that：The support is " H " type structure, including
Located at the vertical beam of both sides, and the crossbeam on the vertical beam is laterally fixedly installed in, the two ends of the crossbeam are respectively with two
The vertical beam of side is fixedly connected；The Longitudinal device is fixedly installed on the crossbeam, and the Longitudinal device
Clutch end is straight down.
7. according to any described a kind of multi-functional direct shear apparatus of claim 1 to 5, it is characterised in that：The lower box body lower section sets
There is rolling mechanism, the lower box body is slided by rolling mechanism level.
8. a kind of multi-functional direct shear apparatus according to claim 7, it is characterised in that：The rolling mechanism include fixed block,
Ball and limiting plate, the upper surface of the fixed block are provided with some grooves, and the ball is rotatably mounted in the groove；
The groove corresponding with the grooved position is provided with the limiting plate；The width of the groove is less than the diameter of ball, described
Limiting plate is covered on the upper surface of fixed block, and the upper end of the ball overhangs the upper table of the limiting plate by groove
Face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611186830.3A CN106706446A (en) | 2016-12-20 | 2016-12-20 | Multifunctional direct shear apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611186830.3A CN106706446A (en) | 2016-12-20 | 2016-12-20 | Multifunctional direct shear apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106706446A true CN106706446A (en) | 2017-05-24 |
Family
ID=58939402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611186830.3A Pending CN106706446A (en) | 2016-12-20 | 2016-12-20 | Multifunctional direct shear apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106706446A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002212938A (en) * | 2001-01-22 | 2002-07-31 | Yamaguchi Univ | Field shear tester |
| CN101373174A (en) * | 2008-07-16 | 2009-02-25 | 中国科学院武汉岩土力学研究所 | Direct shear apparatus capable of directly measuring interface friction force |
| CN102095651A (en) * | 2011-01-21 | 2011-06-15 | 中国科学院地质与地球物理研究所 | Strain-controlled rock-soil aggregate strength test device |
| CN102313673A (en) * | 2011-08-04 | 2012-01-11 | 北京交通大学 | Full-automatic, digital and large frozen soil direct shear apparatus |
| CN203479644U (en) * | 2013-09-12 | 2014-03-12 | 中国科学院武汉岩土力学研究所 | In-situ indoor dual-purpose recyclable-loaded middle-sized direct shear apparatus |
| CN104198301A (en) * | 2014-09-16 | 2014-12-10 | 广西科技大学 | Direct shear test data acquisition instrument for big visual model of reinforced earth |
| CN104596868A (en) * | 2015-01-30 | 2015-05-06 | 北京交通大学 | Axis shifting type ballast direct shearing instrument |
| CN204918078U (en) * | 2015-06-29 | 2015-12-30 | 佛山市顺德区美的饮水机制造有限公司 | Water purifier |
| CN105334116A (en) * | 2015-10-28 | 2016-02-17 | 广东工业大学 | Solidified soil direct shear apparatus |
| CN206450528U (en) * | 2016-12-20 | 2017-08-29 | 广东工业大学 | A kind of multi-functional direct shear apparatus |
-
2016
- 2016-12-20 CN CN201611186830.3A patent/CN106706446A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002212938A (en) * | 2001-01-22 | 2002-07-31 | Yamaguchi Univ | Field shear tester |
| CN101373174A (en) * | 2008-07-16 | 2009-02-25 | 中国科学院武汉岩土力学研究所 | Direct shear apparatus capable of directly measuring interface friction force |
| CN102095651A (en) * | 2011-01-21 | 2011-06-15 | 中国科学院地质与地球物理研究所 | Strain-controlled rock-soil aggregate strength test device |
| CN102313673A (en) * | 2011-08-04 | 2012-01-11 | 北京交通大学 | Full-automatic, digital and large frozen soil direct shear apparatus |
| CN203479644U (en) * | 2013-09-12 | 2014-03-12 | 中国科学院武汉岩土力学研究所 | In-situ indoor dual-purpose recyclable-loaded middle-sized direct shear apparatus |
| CN104198301A (en) * | 2014-09-16 | 2014-12-10 | 广西科技大学 | Direct shear test data acquisition instrument for big visual model of reinforced earth |
| CN104596868A (en) * | 2015-01-30 | 2015-05-06 | 北京交通大学 | Axis shifting type ballast direct shearing instrument |
| CN204918078U (en) * | 2015-06-29 | 2015-12-30 | 佛山市顺德区美的饮水机制造有限公司 | Water purifier |
| CN105334116A (en) * | 2015-10-28 | 2016-02-17 | 广东工业大学 | Solidified soil direct shear apparatus |
| CN206450528U (en) * | 2016-12-20 | 2017-08-29 | 广东工业大学 | A kind of multi-functional direct shear apparatus |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20170524 |