CN106918514A - One kind measurement soil and structure interface Particle Breakage degree direct shear test device - Google Patents
One kind measurement soil and structure interface Particle Breakage degree direct shear test device Download PDFInfo
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- CN106918514A CN106918514A CN201710110515.0A CN201710110515A CN106918514A CN 106918514 A CN106918514 A CN 106918514A CN 201710110515 A CN201710110515 A CN 201710110515A CN 106918514 A CN106918514 A CN 106918514A
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- sleeve
- down cut
- box
- test device
- particle breakage
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- 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
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0025—Shearing
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- 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 present invention is a kind of measurement soil and structure interface Particle Breakage degree direct shear test device, including down cut box, down cut box outside is fixedly connected with support, support is connected with scraping device activity, scraping device is provided with 4th sleeve, 4th collar is fixedly connected with U-lag, circle core shaft of the U-lag opening back on the 4th collar, U-lag two ends are equipped with level correspondence jack, jack is connected with the outer axial face activity of plug, plug coordinates grafting with horizon bar activity, structural material is filled with down cut box, the upper shear box device of structural material upside activity mating connection, upper shear box device includes the first sleeve, first sleeve upside is provided with 3rd sleeve, at least one second sleeve is additionally provided between the first sleeve and 3rd sleeve.The device carries out layering collection after shearing test to the particle of contact surface shear band, is the quantum chemical method provides convenient of contact surface shear band Particle Breakage.
Description
Technical field
The present invention relates to ground indoor direct shear test technical field, a kind of measurement soil and structure interface are more particularly to
Grain degree of crushing direct shear test device.
Background technology
The contact interface of different materials is commonly encountered in building, hydraulic engineering.Because contact interface two layers of material mechanics is special
Property difference, be commonly present larger shear stress in interface both sides and generate displacement non-continuous event, stress and deformation are more multiple
It is miscellaneous.Such as the CFRD in hydraulic engineering, the safety of dam body is closely related with panel stress, and panel exists
Stress in plane depends primarily on the shearing stress distribution state of contact surface between panel and bed course.The heart is there is in core wall rockfill dam
Polytype contact interfaces such as wall earth material and filter material, dam shell material and basement rock.Usual these contacts site are again that dam body is easily sent out
Make trouble thus weak link, wherein contact surface shear band（Can be along with one stress of material internal in rock-soil material destructive process
The region more concentrated, the straining concentration zone domain of this high gradient is that can be formed through banded regions into critical condition in material
Domain, this phenomenon is referred to as strain localization band or shear band in the mechanics of materials, rock-soil mechanics field.）By shearing to particle
Destruction is the most serious, causes bulky grain to reduce, and little particle increases, and particle size distribution plays an important role to engineering stability, because
This research tool for carrying out shear band Particle Breakage is of great significance.
Due to being limited by instrument and equipment, ground on soil and the Particle Breakage situation of the contact surface shear band of works
Study carefully and be present in surface macroscopic observation more, and the microcosmic quantitative research of the Particle Breakage on contact surface shear band is less.Existing text
Offer and be recited as abundant ancestor pool in 1994 and be directly used in sight with miniature " periscope " device and Hu Liming digital photo technologies in 2000
Examine structural plane nearby soil inquired into the relative displacement of structural member the broken of particle in soil and structure interface shearing test and
Motion change.
Although two kinds of equipment described in document can record the particle motion of contact surface shear band in shearing test, crush
Journey, but Precise collection can not be carried out to particle at contact surface shear band, it is difficult to carry out quantum chemical method.
The content of the invention
It is an object of the invention to solve the problems, such as background technology, there is provided one kind measurement soil and structure interface Particle Breakage journey
Degree direct shear test device.
To achieve the above object, the technical solution adopted by the present invention is that one kind measures soil and structure interface Particle Breakage
Degree direct shear test device, it is characterised in that：Including down cut box, down cut box outside be fixedly connected with support, support and
Scraping device activity is connected, and the scraping device is provided with 4th sleeve, and the 4th collar outer axial face is fixed with U-lag and connected
Connect, back on the circle core shaft of the 4th collar, U-lag two ends are equipped with level correspondence jack, jack and plug for the U-lag opening
Outer axial face activity be connected, the activity of plug and horizon bar coordinates grafting.Structural material is filled with the down cut box, is tied
The upper shear box device of structure material upside activity mating connection, the upper shear box device includes the first sleeve, the first sleeve upside
3rd sleeve is provided with, at least one second sleeve is additionally provided between the first sleeve and 3rd sleeve.
Preferably, structural material upside interface is concordant with down cut box upper opening.
Preferably, the down cut box and upper shear box device are cylindrical structural, and down cut box is cut with diameter greater than above
Cut box device diameter.
Preferably, it is provided with first boss in the first sleeve side.
Preferably, the first groove has the corresponding grafting of first boss to coordinate with described.
Preferably, the second groove, the grafting corresponding with the second boss of the second groove are provided with the 3rd sleeve side
Coordinate.
Preferably, the support includes base plate and vertical rod, and described base plate one end is fixedly connected with down cut box, and base plate is another
End is fixedly connected with vertical rod, and the vertical rod is perpendicular to base plate, and vertical rod direction is upward.
The device have the advantages that：The apparatus structure is simple, it is easy to process, easily operation, is provided with particle scraping dress
Put and facilitate powder collection, the particle after shearing test to contact surface shear band carries out layering collection, be contact surface shear band particle
Broken quantum chemical method provides convenient.
Brief description of the drawings
Fig. 1 is that a kind of measurement soil of the present invention shows with the structural upright of structure interface Particle Breakage degree direct shear test device
It is intended to；
Fig. 2 is that a kind of measurement soil of the present invention is basic with the shear box up and down of structure interface Particle Breakage degree direct shear test device
Structural representation；
Fig. 3 is that a kind of measurement soil of the present invention shows with the first sleeve section of structure interface Particle Breakage degree direct shear test device
It is intended to；
Fig. 4 illustrates for a kind of measurement soil of the present invention with structure interface Particle Breakage degree direct shear test device second sleeve section
Figure；
Fig. 5 illustrates for a kind of measurement soil of the present invention is three-dimensional with structure interface Particle Breakage degree direct shear test device 3rd sleeve
Figure；
Fig. 6 is a kind of measurement soil of the present invention and structure interface Particle Breakage degree direct shear test device scraping device structural representation
Figure.
In figure：1- down cut boxes；The upper shear box devices of 2-；The sleeves of 3- first；3a- first boss；4- second sleeves；4a-
Second boss；The grooves of 4b- first；5- 3rd sleeves；The grooves of 5a- second；6- filling materials；7- holder devices；8- vertical rods；9- bottoms
Plate；10- scraping devices；11- horizon bars；12- 4th sleeves；13- jacks；14-U shape grooves；15- plugs.
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.
Fig. 1-6 are referred to, a kind of measurement soil is cut under including with structure interface Particle Breakage degree direct shear test device
Box 1 is cut, the outside of down cut box 1 is fixedly connected with support 7, and support 7 includes base plate 9 and vertical rod 8, the one end of base plate 9 and down cut box 1
It is fixedly connected, the other end of base plate 9 is fixedly connected with vertical rod 8, vertical rod 8 is perpendicular to base plate 9, and the direction of vertical rod 8 is upward；Support 7 with scrape
Leveling device activity is connected, and scraping device 10 is provided with 4th sleeve 12, and the outer axial face of the 4th collar 12 is fixed with U-lag 14 and connected
Connect, U-lag 14 is open back on the circle core shaft of the 4th collar 12, the two ends of U-lag 12 are equipped with level correspondence jack 13, jack 13
Outer axial face activity with plug 15 is connected, and plug 13 coordinates grafting with the activity of horizon bar 11；Further, as stated above
The upper shear box device 2 for assembling, experiment soil body particle is loaded by upper shear box device 2, then will be equipped with the upper of soil body particle
Shear box device 2 is placed in the upside of down cut box 1 of filling structure material 6；Structural material 6, structure are filled with down cut box 1
The upside interface of material 6 is concordant with the holding of the upper opening of down cut box 2；Sheared in the activity mating connection of the upside of structural material 6 box-packed
2 are put, down cut box 1 and upper shear box device 2 are cylindrical structural, down cut box 1 is straight with diameter greater than upper shear box device 2
Footpath；Upper shear box device 2 includes the first sleeve 3, and the upper shear box device 2 includes the first sleeve 3, and the upside of the first sleeve 3 is matched somebody with somebody
Connection 3rd sleeve 5 is closed, at least one second sleeve 4 is additionally provided between the first sleeve 3 and 3rd sleeve 5；In the first sleeve 3
Side is provided with first boss 3a, and being provided with second boss 4a, opposite side in the side of second sleeve 4 is provided with the first groove 4b, and first is recessed
Groove 4b grafting corresponding with there is first boss 3a coordinates, and the second groove 5a, the second groove 5a and second is provided with the side of 3rd sleeve 5
Boss 4b correspondence grafting coordinates.
When using, a kind of above-mentioned measurement soil is placed in shearing with structure interface Particle Breakage degree direct shear test device
Shearing test is carried out on instrument, after shearing test, institute's apparatus of the present invention is removed.
Further, 3rd sleeve 5 is removed, the particle that 3rd sleeve 5 slides is collected, the part of 3rd sleeve 5
Particle residue portion on the apparatus.
Further, by scraping device lifting to device correspondence shear box overhead height, horizon bar lies in a horizontal plane in the
The top of two sleeve 4, is that the center of circle horizontally rotates horizon bar 11 with vertical rod 8, and logical 5 residual particles of 3rd sleeve are scraped, and collects the 3rd
Particle in sleeve 5, will collect particle and individually preserves.
Further, the particle in the sleeve 3 of second sleeve 4 and first is entered using the endoparticle collection mode of 3rd sleeve 5
Row Collection and conservation.
Further, the particle of collection is sieved, and draws granular-grade distribution, calculates every layer of Particle Breakage.
Claims (7)
- It is 1. a kind of to measure soil and structure interface Particle Breakage degree direct shear test device, it is characterised in that：Including down cut Box（1）, down cut box（1）Outside and support（7）Secure fit is connected, support（7）With scraping device（10）Activity is connected, The scraping device（10）It is provided with 4th sleeve（12）, the 4th collar（12）Outer axial face and U-lag（14）It is fixedly connected, it is described U-lag（14）It is open back on the 4th collar（12）Circle core shaft, U-lag（12）Two ends are equipped with level correspondence jack（13）, Jack（13）With plug（15）Outer axial face activity be connected, plug（13）With horizon bar（11）Activity coordinates grafting, described Down cut box（1）Inside it is filled with structural material（6）, structural material（6）The upper shear box device of upside activity mating connection（2）, institute State shear box device（2）Including the first sleeve（3）, the first sleeve（3）Upside is provided with 3rd sleeve（5）, in the first sleeve （3）With 3rd sleeve（5）Between be additionally provided with least one second sleeve（4）.
- 2. one kind according to claim 1 measures soil and structure interface Particle Breakage degree direct shear test device, and it is special Levy and be：The structural material（6）Upside interface and down cut box（2）Upper opening edge is concordant.
- 3. one kind according to claim 1 measures soil and structure interface Particle Breakage degree direct shear test device, and it is special Levy and be：The down cut box（1）With upper shear box device（2）It is columnar structured, down cut box（1）With diameter greater than above cutting Cut box device（2）Diameter.
- 4. one kind according to claim 1 measures soil and structure interface Particle Breakage degree direct shear test device, and it is special Levy and be：In first sleeve（3）Side is provided with first boss（3a）.
- 5. one kind according to claim 1 measures soil and structure interface Particle Breakage degree direct shear test device, and it is special Levy and be：In the second sleeve（4）Side is provided with second boss（4a）, opposite side be provided with the first groove（4b）, the first groove （4b）There is first boss with described（3a）Correspondence grafting coordinates.
- 6. one kind according to claim 1 measures soil and structure interface Particle Breakage degree direct shear test device, and it is special Levy and be：In the 3rd sleeve（5）Side is provided with the second groove（5a）, the second groove（5a）With the second boss（4b）It is right Grafting is answered to coordinate.
- 7. one kind according to claim 1 measures soil and structure interface Particle Breakage degree direct shear test device, and it is special Levy and be：The support（7）Including base plate（9）And vertical rod（8）, the base plate（9）One end and down cut box（1）It is fixedly connected, Base plate（9）The other end and vertical rod（8）It is fixedly connected, the vertical rod（8）Perpendicular to base plate（9）, vertical rod（8）Direction is upward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710110515.0A CN106918514B (en) | 2017-02-28 | 2017-02-28 | Direct shear test device for measuring crushing degree of particles at contact surface of soil and structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710110515.0A CN106918514B (en) | 2017-02-28 | 2017-02-28 | Direct shear test device for measuring crushing degree of particles at contact surface of soil and structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106918514A true CN106918514A (en) | 2017-07-04 |
| CN106918514B CN106918514B (en) | 2023-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710110515.0A Active CN106918514B (en) | 2017-02-28 | 2017-02-28 | Direct shear test device for measuring crushing degree of particles at contact surface of soil and structure |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030006171A1 (en) * | 2001-07-06 | 2003-01-09 | Puri Virendra M. | Method and apparatus for testing segregation of particulate materials during shear |
| CN101846606A (en) * | 2010-05-27 | 2010-09-29 | 中国科学院武汉岩土力学研究所 | Earth-structure interaction contact surface shearing test visualization device |
| CN104062192A (en) * | 2014-06-25 | 2014-09-24 | 成都东华卓越科技有限公司 | Novel automatic control stacked-ring type shear test apparatus |
| CN105954149A (en) * | 2016-05-06 | 2016-09-21 | 同济大学 | Granular soil shear flow test system |
| CN206627380U (en) * | 2017-02-28 | 2017-11-10 | 河南理工大学 | One kind measurement soil and structure interface Particle Breakage degree direct shear test device |
-
2017
- 2017-02-28 CN CN201710110515.0A patent/CN106918514B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030006171A1 (en) * | 2001-07-06 | 2003-01-09 | Puri Virendra M. | Method and apparatus for testing segregation of particulate materials during shear |
| CN101846606A (en) * | 2010-05-27 | 2010-09-29 | 中国科学院武汉岩土力学研究所 | Earth-structure interaction contact surface shearing test visualization device |
| CN104062192A (en) * | 2014-06-25 | 2014-09-24 | 成都东华卓越科技有限公司 | Novel automatic control stacked-ring type shear test apparatus |
| CN105954149A (en) * | 2016-05-06 | 2016-09-21 | 同济大学 | Granular soil shear flow test system |
| CN206627380U (en) * | 2017-02-28 | 2017-11-10 | 河南理工大学 | One kind measurement soil and structure interface Particle Breakage degree direct shear test device |
Non-Patent Citations (1)
| Title |
|---|
| 张茜等: "粗粒土大型剪切试验剪切带变形特征分析", 《工程地质学报》 * |
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| CN106918514B (en) | 2023-05-05 |
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