CN206627380U - 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
- Publication number
- CN206627380U CN206627380U CN201720182105.2U CN201720182105U CN206627380U CN 206627380 U CN206627380 U CN 206627380U CN 201720182105 U CN201720182105 U CN 201720182105U CN 206627380 U CN206627380 U CN 206627380U
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- China
- Prior art keywords
- sleeve
- box
- down cut
- test device
- particle breakage
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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 is a kind of measurement soil and structure interface Particle Breakage degree direct shear test device, including down cut box, it is fixedly connected on the outside of down cut box with support, support is connected with scraping device activity, scraping device is provided with 4th sleeve, 4th sleeve is fixedly connected with U-lag, circle core shaft of the U-lag opening back on 4th sleeve, U-lag both ends are equipped with horizontal corresponding jack, the outer axial face activity of jack and plug is connected, plug coordinates grafting with horizon bar activity, structural material is filled with down cut box, the upper shear box device of activity mating connection on the upside of structural material, upper shear box device includes the first sleeve, 3rd sleeve is provided with the upside of first 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 provided conveniently for the quantum chemical method of contact surface shear band Particle Breakage.
Description
Technical field
Ground indoor direct shear test technical field is the utility model is related to, is more particularly to a kind of measurement soil and form touch
Face Particle Breakage degree 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, larger shear stress is commonly present in interface both sides and generates displacement non-continuous event, stress and is deformed more multiple
It is miscellaneous.Such as the CFRD in hydraulic engineering, the safety and panel stress of dam body are closely related, and panel exists
Stress in plane depends primarily on the shearing stress distribution state of contact surface between panel and bed course.There is the heart in core wall rockfill dam
Wall earth material and filter material, polytype contact interface such as dam shell material and basement rock.These usual contacts site are that dam body is easily sent out again
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, it is that can be formed through banded regions that the straining concentration zone domain of this high gradient enters critical condition in material
Domain, this phenomenon are 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 with 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 on the Particle Breakage of 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 digital photo technologies with miniature " periscope " device and Hu Liming in 2000
Examine structural plane soil and the relative displacement of structural member nearby inquire into soil and the broken of the particle in 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.
Utility model content
The purpose of this utility model is solve the problems, such as background technology, there is provided one kind measurement soil is broken with structure interface particle
Broken degree direct shear test device.
To achieve the above object, the technical solution adopted in the utility model is one kind measurement soil and structure interface particle
Degree of crushing direct shear test device, it is characterised in that：Including down cut box, be fixedly connected with support on the outside of down cut box, branch
Frame is connected with scraping device activity, and the scraping device is provided with 4th sleeve, and 4th sleeve outer axial face is fixed with U-lag
Connection, the U-lag opening is back on the circle core shaft of 4th sleeve, and U-lag both ends are equipped with horizontal corresponding jack, and jack is with inserting
The outer axial face activity of bolt is connected, and plug coordinates grafting with horizon bar activity.Structural material is filled with the down cut box,
Activity is connected upper shear box device on the upside of structural material, and the upper shear box device includes the first sleeve, on the first sleeve
Side is provided with 3rd sleeve, and at least one second sleeve is additionally provided between the first sleeve and 3rd sleeve.
Preferably, interface is concordant with down cut box upper opening on the upside of the structural material.
Preferably, the down cut box and upper shear box device are cylindrical structural, and down cut box diameter, which is more than, above to be cut
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 bottom plate and vertical rod, and described bottom plate one end is fixedly connected with down cut box, and bottom plate is another
End is fixedly connected with vertical rod, and the vertical rod is upward perpendicular to bottom plate, vertical rod direction.
The utility model has the advantage that：The apparatus structure is simple, easy to process, and easily operation, is scraped provided with particle
Take device to facilitate powder collection, layering collection is carried out to the particle of contact surface shear band after shearing test, is contact surface shear band
The quantum chemical method of Particle Breakage provides convenient.
Brief description of the drawings
Fig. 1 is that a kind of structure for measuring soil and structure interface Particle Breakage degree direct shear test device of the utility model is stood
Body schematic diagram；
Fig. 2 is a kind of upper and lower cutting for measuring soil and structure interface Particle Breakage degree direct shear test device of the utility model
Cut box basic structure schematic diagram；
Fig. 3 is a kind of first set for measuring soil and structure interface Particle Breakage degree direct shear test device of the utility model
Cylinder diagrammatic cross-section；
Fig. 4 is a kind of measurement soil of the utility model and structure interface Particle Breakage degree direct shear test device second sleeve
Diagrammatic cross-section；
Fig. 5 is a kind of measurement soil of the utility model and structure interface Particle Breakage degree direct shear test device 3rd sleeve
Schematic perspective view；
Fig. 6 is a kind of measurement soil of the utility model and structure interface Particle Breakage degree direct shear test device scraping device
Structural representation.
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.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole realities
Apply example.
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 bottom plate 9 and vertical rod 8, the one end of bottom plate 9 and down cut box 1
It is fixedly connected, the other end of bottom plate 9 is fixedly connected with vertical rod 8, and vertical rod 8 is upward perpendicular to bottom plate 9, the direction of vertical rod 8；Support 7 is with scraping
Leveling device activity is connected, and scraping device 10 is provided with 4th sleeve 12, and the outer axial face of 4th sleeve 12 is fixed with U-lag 14 to be connected
Connect, U-lag 14 is open back on the circle core shaft of 4th sleeve 12, and the both ends of U-lag 14 are equipped with horizontal corresponding jack 13, jack 13
Outer axial face activity with plug 15 is connected, and plug 15 coordinates grafting with the activity of horizon bar 11；Further, as stated above
The upper shear box device 2 assembled, upper shear box device 2 is loaded into experiment soil body particle, then by 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 1；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, and it is straight that the diameter of down cut box 1 is more 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, is provided with the first groove 4b provided with second boss 4a, opposite side in the side of second sleeve 4, 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 4a corresponds to grafting cooperation.
In use, a kind of above-mentioned measurement soil is placed in shearing with structure interface Particle Breakage degree direct shear test device
Carry out shearing test on instrument, after shearing test, remove institute's the utility model device.
Further, 3rd sleeve 5 is removed, the particle slid to 3rd sleeve 5 is collected, the part of 3rd sleeve 5
Particle residue portion on the apparatus.
Further, scraping device is lifted to the device and corresponds to shear box overhead height, horizon bar lies in a horizontal plane in the
The top of two sleeve 4, it is that the center of circle rotates horizontally horizon bar 11 with vertical rod 8,3rd sleeve is led into 5 residual particles and scraped, collects the 3rd
Particle in sleeve 5, particle will be collected and individually preserved.
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)
1. one kind measurement 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 connects, support（7）With scraping device（10）Activity is connected,
The scraping device（10）It is provided with 4th sleeve（12）, 4th sleeve（12）Outer axial face and U-lag（14）It is fixedly connected, it is described
U-lag（14）It is open back on 4th sleeve（12）Circle core shaft, U-lag（14）Both ends are equipped with horizontal corresponding jack（13）,
Jack（13）With plug（15）Outer axial face activity be connected, plug（15）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. a kind of measurement soil according to claim 1 and structure interface Particle Breakage degree direct shear test device, it is special
Sign is：The structural material（6）Upside interface and down cut box（1）Upper opening edge is concordant.
3. a kind of measurement soil according to claim 1 and structure interface Particle Breakage degree direct shear test device, it is special
Sign is：The down cut box（1）With upper shear box device（2）It is columnar structured, down cut box（1）Diameter, which is more than, above to be cut
Cut box device（2）Diameter.
4. a kind of measurement soil according to claim 1 and structure interface Particle Breakage degree direct shear test device, it is special
Sign is：In first sleeve（3）Side is provided with first boss（3a）.
5. a kind of measurement soil according to claim 1 and structure interface Particle Breakage degree direct shear test device, it is special
Sign is：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）Corresponding grafting coordinates.
6. a kind of measurement soil according to claim 5 and structure interface Particle Breakage degree direct shear test device, it is special
Sign is：In the 3rd sleeve（5）Side is provided with the second groove（5a）, the second groove（5a）With the second boss（4a）It is right
Grafting is answered to coordinate.
7. a kind of measurement soil according to claim 1 and structure interface Particle Breakage degree direct shear test device, it is special
Sign is：The support（7）Including bottom plate（9）And vertical rod（8）, the bottom plate（9）One end and down cut box（1）It is fixedly connected,
Bottom plate（9）The other end and vertical rod（8）It is fixedly connected, the vertical rod（8）Perpendicular to bottom plate（9）, vertical rod（8）Direction is upward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720182105.2U CN206627380U (en) | 2017-02-28 | 2017-02-28 | One kind measurement soil and structure interface Particle Breakage degree direct shear test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720182105.2U CN206627380U (en) | 2017-02-28 | 2017-02-28 | One kind measurement soil and structure interface Particle Breakage degree direct shear test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206627380U true CN206627380U (en) | 2017-11-10 |
Family
ID=60210731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720182105.2U Expired - Fee Related CN206627380U (en) | 2017-02-28 | 2017-02-28 | One kind measurement soil and structure interface Particle Breakage degree direct shear test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206627380U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106918514A (en) * | 2017-02-28 | 2017-07-04 | 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 CN201720182105.2U patent/CN206627380U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106918514A (en) * | 2017-02-28 | 2017-07-04 | 河南理工大学 | One kind measurement soil and structure interface Particle Breakage degree direct shear test device |
| CN106918514B (en) * | 2017-02-28 | 2023-05-05 | 河南理工大学 | Direct shear test device for measuring crushing degree of particles at contact surface of soil and structure |
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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: 20171110 Termination date: 20210228 |