CN206627300U - It is a kind of to be used for sand and the Stratified Sampling device of structure interface direct shear test - Google Patents
It is a kind of to be used for sand and the Stratified Sampling device of structure interface direct shear test Download PDFInfo
- Publication number
- CN206627300U CN206627300U CN201720220313.7U CN201720220313U CN206627300U CN 206627300 U CN206627300 U CN 206627300U CN 201720220313 U CN201720220313 U CN 201720220313U CN 206627300 U CN206627300 U CN 206627300U
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- cylinder
- sand
- annulus
- box
- shear test
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- Sampling And Sample Adjustment (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a kind of for sand and the Stratified Sampling device of structure interface direct shear test, including down cut box and upper shear box, upper shear box is provided with the first annulus and the second annulus, at least two equally distributed vertical cylinders are set on the upside of the first annulus, second annulus is provided with through hole corresponding with cylinder, cylinder grafting corresponding with through hole, cylindrical upper portion mating connection nut, nut are placed in the second annulus top side.The utility model has the advantage of：It is simple in construction, it is easy to make, low manufacture cost, structural stability is strong, fetches earth to the accurate layering of particle in shear box after being easy to structural interface direct shear test, sieves beneficial to layering and calculate Particle Breakage situation.
Description
Technical field
Geotechnical Engineering field is the utility model is related to, it is specially a kind of for sand and point of structure interface direct shear test
Layer sampler.
Background technology
People know that meeting is along with material internal one in rock-soil material destructive process in the research of the ground material mechanics of materials
The region that individual stress is more concentrated, it is that can be formed through band that the straining concentration zone domain of this high gradient enters critical condition in material
Shape region, this phenomenon are referred to as strain localization band or shear band in the mechanics of materials, rock-soil mechanics field.It was verified that
Shear band is also appeared in Geotechnical Engineering（Retaining wall, soil-nailed structure, stake, earth dam, etc.）Soil with structure interface nearby area
Domain, the high gradient strain region of formation decide the sliding stability between soil-structure contact surface.Shear band is Rock And Soil and engineering
The key of the control of stability between body, therefore soil and the measurement of structure interface shear bandwidth and the important class of research shear band
Topic.
Existing literature is recited as abundant ancestor pool in 1994 with miniature " periscope " device and Hu Liming Digital photographics in 2000
Technology is directly used in the native relative displacement with structural member nearby of observation structure face to inquire into soil and structure interface shearing test
Shear bandwidth, its principle for soil with structural plane shear when, shear stress drive particle movement using existing shooting technology shoot
Its motion conditions, and then shearing test disturbs thickness to particle, the distance that structure interface is arrived at particle undisturbed is just shearing
Tape thickness, although two kinds of equipment must be probed into tentatively soil is microcosmic under shearing condition, complex operation, while the equipment can only
Surface observation is unfavorable for carrying out Particle Breakage degree quantitative calculating, while particle is influenceed to be unable to actual response by shearing rear wall
Particle inner case, surveying the degree of accuracy of shear bandwidth can also be affected, and some are difficult to the slight change observed easily quilt
Ignore.
Utility model content
The purpose of this utility model is that providing a kind of Stratified Sampling for sand and structure interface direct shear test fills
Put, to solve the problems mentioned in the above background technology.
It is a kind of to be used for sand and the Stratified Sampling device of structure interface direct shear test, including down cut box and upper shearing
Box, the upper shear box is provided with first annular plate, is fixedly connected on the upside of the first annular plate with multiple vertical cylinders, described
Cylinder is uniformly distributed along on the upside of first annular plate, and at least one second annular slab is provided with the upside of the first annular plate, described
Second annular slab is provided with through hole, through hole grafting corresponding with cylinder, cylindrical upper portion activity mating connection nut, the nut
Above the second annular slab.
Preferably, the cylindrical upper portion is provided with screw thread, is easy to cylinder to be connected with nut.
Preferably, the through-hole aperture is equal with body diameter.
The utility model has the advantage of：It is simple in construction, it is easy to make, low manufacture cost, structural stability is strong, is easy to tie
To particle in shear box, accurately layering is fetched earth after the direct shear test of structure interface, is sieved beneficial to layering and is calculated Particle Breakage situation.
Brief description of the drawings
Fig. 1 basic structure schematic diagrams of the present utility model；
Fig. 2 decomposition texture schematic diagrams of the present utility model.
In figure：1- down cut boxes, the upper shear boxs of 2-, the first annular plates of 3-, the annular slabs of 4- second, 5- nuts, 6- cylinders, 7-
Through hole.
Embodiment
In order that this object, technical solution and advantage of the present utility model is more clearly understood, below in conjunction with accompanying drawing and reality
Example is applied, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only explaining this
Invention, it is not used to limit the utility model.
The utility model offer is a kind of as depicted in figs. 1 and 2 takes for sand and the layering of structure interface direct shear test
Sampling device, it is characterised in that：Including down cut box 1 and upper shear box 2, upper shear box 2 is provided with the first annular ring of plate 3 and second
Shape plate 4, the first annular upside of plate 3 set at least two to be uniformly distributed cylinder 6, and second annular slab 4 is provided with right with cylinder 6
The through hole 7 answered, cylinder 6 and 7 corresponding grafting of through hole, the upper end mating connection nut 5 of cylinder 6, nut 5 are placed in the second annular slab 4
Top side；Cylinder 6 is provided with screw thread；The aperture of through hole 7 is equal with the diameter of cylinder 6.
In use, the built-in structural material for loading contact surface of previously described down cut box 1（Such as concrete）, structural material
Contact surface be open with down cut box 1 concordant, then upper shear box is positioned on the upside of down cut box, sand grains are loaded
Shear box 2, shearing test is carried out to the device, upper nut 5 is opened, the second annular slab 3 of lower top layer is first removed, by the annular
The horizontal scraping of sand grains in plate is numbered to cap rock sand, then taken according to the circulation of top way in collection device
Second annular slab 3 of bottom, scraping sand grains are numbered, until the sand in annular slab is taken, sand is taken to every layer
Soil carries out screening calculating, analyzes the change of Particle Breakage degree.
Claims (3)
- It is 1. a kind of for sand and the Stratified Sampling device of structure interface direct shear test, including down cut box（1）With upper shearing Box（2）, it is characterised in that：The upper shear box（2）It is provided with first annular plate（3）, the first annular plate（3）Upside with it is more Individual vertical cylinder（6）It is fixedly connected, the cylinder（6）Along first annular plate（3）Upside is uniformly distributed, the first annular plate （3）Upside is provided with least one second annular slab（4）, second annular slab（4）It is provided with through hole（7）, the through hole（7） With cylinder（6）Corresponding grafting, cylinder（6）Top movable mating connection nut（5）, the nut（5）Positioned at the second annular slab（4） Top.
- It is 2. a kind of for sand and the Stratified Sampling device of structure interface direct shear test, its feature according to claim 1 It is：The cylinder（6）Top is provided with screw thread, is easy to cylinder（6）With nut（5）It is connected.
- It is 3. a kind of for sand and the Stratified Sampling device of structure interface direct shear test, its feature according to claim 1 It is：The through hole（7）Aperture and cylinder（6）Diameter is equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720220313.7U CN206627300U (en) | 2017-03-08 | 2017-03-08 | It is a kind of to be used for sand and the Stratified Sampling device of structure interface direct shear test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720220313.7U CN206627300U (en) | 2017-03-08 | 2017-03-08 | It is a kind of to be used for sand and the Stratified Sampling device of structure interface direct shear test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206627300U true CN206627300U (en) | 2017-11-10 |
Family
ID=60210999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720220313.7U Expired - Fee Related CN206627300U (en) | 2017-03-08 | 2017-03-08 | It is a kind of to be used for sand and the Stratified Sampling device of structure interface direct shear test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206627300U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110439041A (en) * | 2019-07-12 | 2019-11-12 | 同济大学 | A kind of simulator of excavation of foundation pit |
-
2017
- 2017-03-08 CN CN201720220313.7U patent/CN206627300U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110439041A (en) * | 2019-07-12 | 2019-11-12 | 同济大学 | A kind of simulator of excavation of foundation pit |
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Legal Events
| 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: 20180308 |