CN105973721B - A kind of direct shear apparatus shearing container that clipped position is variable - Google Patents
A kind of direct shear apparatus shearing container that clipped position is variable Download PDFInfo
- Publication number
- CN105973721B CN105973721B CN201610408351.5A CN201610408351A CN105973721B CN 105973721 B CN105973721 B CN 105973721B CN 201610408351 A CN201610408351 A CN 201610408351A CN 105973721 B CN105973721 B CN 105973721B
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- gear roller
- driven gear
- driving shaft
- lifting column
- down cut
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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
- 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)
Abstract
For a kind of variable direct shear apparatus shearing container of clipped position there are one rectangular down cut box, the inside of the down cut box sequential parallel since side is equipped with toothed driven gear roller a, carrier gear roller, master gear roller and driven gear roller b；Lifting column is installed, the teeth on lifting column surface engage connection with the teeth of driven gear roller a and driven gear roller b between driven gear roller a and driven gear roller b；The rotation of master gear roller can sequentially drive the rotation of carrier gear roller, driven gear roller a and driven gear roller b；The rotation of driven gear roller a and driven gear roller b drives lifting column rise and fall；The bottom of lifting column is equipped with lifting column；A kind of direct shear apparatus shearing container that clipped position is variable, its is compact-sized simple, it is safe and convenient to use, the clipped position up and down of change ground sample can not only be needed according to experiment, and it is equally applicable to study the shearing mechanical characteristic of other granular materials and works interaction, the applicability for increasing instrument improves the accuracy of test result.
Description
Technical field
The present invention relates to the shearing container in a kind of direct shear apparatus, the variable direct shear apparatus shearing of especially a kind of clipped position is held
Device.
Background technology
For soil and structural interaction research, more commonly used instrument is boxlike direct shear apparatus, triaxial tester, stacked ring type
Contact surface simple shear apparatus, torsion shear apparatus, resonance column device and contact surface circular loading shear apparatus etc., wherein it is staight scissors that application is more
Instrument and simple shear apparatus.Especially direct shear apparatus, since the preparation of its sample and instrumentation process are fairly simple and therefrom
Test result and the obtained result of other complex devices are almost the same, therefore, at present in research Soil-structure interaction model
Application in contact face mechanical property is more extensive.Common direct shear apparatus is mainly by Vertical loading component, vertical deformation measurement portion
Part, horizontal addload component, shearing force measure the compositions such as component and shearing container.Shearing container by pedestal, lower down cut box, up and down
The compositions such as shear box and pressurization cover board；When making the shearing dynamic characteristic test of dynamic soil-sturcture interaction of direct shear apparatus, by structure
Object is placed in lower box, and works upper surface is concordant with the upper surface of lower box, then puts the shear box up and down of shearing container, in alignment
Lower box is inserted into fixed pin, and soil sample is pushed into shear box up and down with permeable stone and pressurization cover board, vertical load is then added, reaches examination
After testing consolidation requirement, fixed pin is extracted, you can shearing test is carried out, to measure the related mechanics ginseng of dynamic soil-sturcture interaction
Number.It can be seen that in conventional direct shear test, due to artificially securing the position of shear surface, failure by shear is exactly sent out
Life is on the contact surface of two kinds of materials.But it is not necessarily happened on this contact surface in fact, destroying, in works and the soil body
During mutually sliding occurs, due to the influence of works surface roughness, necessarily lead to a certain range around structural plane
The distribution of interior soil stress filed and displacement field changes, to which the soil body for keeping shearing strength most weak destroys first, due to
The degree of roughness of stress state, works surface residing for works and the soil body and the difference of surrounding soil property, will make brokenly
The position of harm is no longer fixed, inevitable to change with the variation of above-mentioned factors.
Invention content
In order to make shearing container be suitable for measuring the shearing mechanical characteristic of any position soil body around structural plane, this
It is a kind of direct shear apparatus shearing container that clipped position is variable that invention, which provides,；The variable direct shear apparatus shearing container of the clipped position, knot
Structure is compact simple, safe and convenient to use, and the clipped position up and down for changing ground sample can not only be needed according to experiment, and
It is applicable to study the shearing mechanical characteristic of other granular materials and works interaction, increases the applicability of instrument, carry
The high accuracy of test result.
The technical solution adopted in the present invention is:A kind of direct shear apparatus shearing container that clipped position is variable, including：Down cut
Box, driven gear roller a, lifting column, driven gear roller b position internal tooth, position external tooth, driving shaft, handle, master gear roller, gap bridge
Mill pinion, structural plane, permeable stone, lifting pillar support, upper shear box；A kind of variable direct shear apparatus shearing container of clipped position has one
A rectangular down cut box, the inside of the down cut box sequential parallel since side are equipped with toothed driven gear roller a, mistake
Axle gear roller, master gear roller and driven gear roller b；Lifting column is installed between driven gear roller a and driven gear roller b；It rises
Drop column surface teeth engage connection with the teeth of driven gear roller a and driven gear roller b；The rotation of master gear roller being capable of sequence tape
The rotation of dynamic carrier gear roller, driven gear roller a and driven gear roller b, the rotation of driven gear roller a and driven gear roller b
Drive lifting column rise and fall；The bottom of lifting column is equipped with lifting pillar support.
In conclusion one end of master gear roller engages connection with driving shaft by teeth and driving shaft being capable of interior external extension；
Down cut outer box wall is touched with driving shaft by positioning internal tooth and is connect, and positioning external tooth is provided on driving shaft；Actively axially retract
Return when can will positioning external tooth be fixed in the positioning internal tooth of down cut outer box wall, prevent driving shaft from rotating, by driving shaft with
The engagement of master gear roller limits the rotation of master gear roller, to limit moving up and down for lifting column；When driving shaft is to overhanging
When going out, positioning internal tooth is detached with positioning external tooth, and driving shaft can rotate.
In conclusion the other end of driving shaft is connected with handle.
In conclusion the top sequence installation of lifting column is placed with permeable stone and structural plane.
In conclusion the top of down cut box is placed with shear box.
In use, rotating drive shaft counterclockwise, pass through master gear roller, carrier gear roller, driven gear roller a and passive
After mill pinion b makes lifting column rise at the top of down cut box, driving shaft is lockked with positioning external tooth by positioning internal tooth, thus will
Lifting column is fixed, and permeable stone is rotated clockwise and is inserted into lifting column and tightens, structural plane is placed on permeable stone；It later will be actively
Axis pulls out, and after so that positioning internal tooth is detached with positioning external tooth, rotates clockwise driving shaft, passes through master gear roller, carrier gear
Roller, driven gear roller a and driven gear roller b make lifting column drop to precalculated position, will with positioning external tooth by positioning internal tooth
Driving shaft, which locks, to be fixed；Upper shear box is placed on above down cut box, and makes the circular hole alignment for placing soil sample among the two；It will examination
It tests soil sample to be put into the circular hole of down cut box, then puts permeable stone and pressurization cover board successively, then apply Normal stress, according to examination
The load and consolidation requirement tested can carry out the shearing dynamic characteristic test of soil or other granular materials and structure Interface.
The beneficial effects of the invention are as follows：A kind of direct shear apparatus shearing container that clipped position is variable, it is compact-sized simple, make
With safe ready, the clipped position up and down for changing ground sample can not only be needed according to experiment, and be equally applicable to study
The shearing mechanical characteristic of other granular materials and works interaction, increases the applicability of instrument, improves test result
Accuracy；In addition the shearing container is not only able between the structure object plane and soil at the different location of research distance structure face mutually
The mechanical characteristic of effect, interaction mechanics characteristic at dynamic soil-sturcture interaction can only be studied by overcoming conventional video cassette direct shear apparatus
The drawbacks of, but also can need to change the precision of shear surface position according to experiment.
Description of the drawings
Below in conjunction with the accompanying drawings andEmbodimentThe present invention is further described.
Fig. 1 is that this down cut box overlooks drive mechanism principle schematic.
Fig. 2 is facing structure principle schematic of the present invention.
In figure：1. down cut box, 2. driven gear roller a, 3. lifting columns, 4. driven gear roller b, 5. positioning internal tooths, 6. is fixed
Position external tooth, 7. driving shafts, 8. handles, 9. master gear rollers, 10. carrier gear rollers, 11. structural planes, 12 permeable stones, 13. lifting columns
Bearing, shear box on 14..
Specific implementation mode
In Fig. 1, a kind of direct shear apparatus shearing container that clipped position is variable, including：Down cut box 1, driven gear roller a2 rise
Drop column 3, driven gear roller b4, positioning internal tooth 5, positioning external tooth 6, driving shaft 7, handle 8, master gear roller 9, carrier gear roller 10,
Structural plane 11, permeable stone 12 lift pillar support 13, upper shear box 14；A kind of variable direct shear apparatus shearing container of clipped position has
One rectangular down cut box 1, the inside of down cut box 1 sequential parallel since side are equipped with toothed driven gear roller
A2, carrier gear roller 10, master gear roller 9 and driven gear roller b4；It is installed between driven gear roller a2 and driven gear roller b4
There is lifting column 3；3 surface teeth of lifting column engage connection with the teeth of driven gear roller a2 and driven gear roller b4；Master gear roller 9
Rotation can sequentially drive the rotation of carrier gear roller 10, driven gear roller a2 and driven gear roller b4, driven gear roller
The rotation of a2 and driven gear roller b4 drives 3 rise and fall of lifting column；The bottom of lifting column 3 is equipped with lifting pillar support 13.
In conclusion one end of master gear roller 9 engages connection with driving shaft 7 by teeth and driving shaft 7 can be interior overhanging
Contracting；1 outer wall of down cut box is touched with driving shaft 7 by positioning internal tooth 5 and is connect, and positioning external tooth 6 is provided on driving shaft 7；Actively
Positioning external tooth 6 can be fixed in the positioning internal tooth 5 of down cut outer box wall 1 by axis 7 when inwardly retracting, and prevent driving shaft 7 from rotating,
By engaging for driving shaft 7 and master gear roller 9, limit the rotation of master gear roller 9, to limit lifting column 3 on move down
It is dynamic；When driving shaft 7 is protruding, positioning internal tooth 5 is detached with positioning external tooth 6, and driving shaft 7 can rotate.
In conclusion the other end of driving shaft 7 is connected with handle 8.
In conclusion the top sequence installation of lifting column 3 is placed with permeable stone 12 and structural plane 11.
In conclusion the top of down cut box 1 is placed with shear box 14.
In use, counterclockwise rotating drive shaft 7, by master gear roller 9, carrier gear roller 10, driven gear roller a2 and
After driven gear roller b4 makes lifting column 3 rise to 1 top of down cut box, by positioning internal tooth 5 and positioning external tooth 6 by driving shaft 7
It locks, to fix lifting column 3, permeable stone 12 is rotated clockwise and is inserted into lifting column 3 and tightens, structural plane is placed on permeable
Shi Shang；Driving shaft 7 is pulled out later, after so that positioning internal tooth 5 is detached with positioning external tooth 6, driving shaft 7 is rotated clockwise, leads to
Crossing master gear roller 9, carrier gear roller 10, driven gear roller a2 and driven gear roller b4 makes lifting column 3 drop to precalculated position,
Driving shaft 7 is lockked into fixation with positioning external tooth 6 by positioning internal tooth 5；Upper shear box 14 is placed on above down cut box 1, and is made
The circular hole alignment of soil sample is placed among the two；Experiment soil sample is put into the circular hole of down cut box 1, then puts permeable stone 12 successively
With pressurization cover board, then apply Normal stress, soil or other granular materials can be carried out according to the load and consolidation requirement of experiment
With the shearing dynamic characteristic test of structure Interface.
Claims (3)
1. a kind of variable direct shear apparatus shearing container of clipped position, including：Down cut box (1), driven gear roller a (2), lifting column
(3), (4) driven gear roller b, positioning internal tooth (5), positioning external tooth (6), driving shaft (7), handle (8), master gear roller (9) are passed a bridge
Mill pinion (10), structural plane (11), permeable stone (12), lifting pillar support (13), upper shear box (14)；Wherein down cut box is side
Shape；It is characterized in that：The inside of down cut box (1) sequential parallel since side be equipped with toothed driven gear roller a (2),
Carrier gear roller (10), master gear roller (9) and driven gear roller b (4)；Driven gear roller a (2) and driven gear roller b (4) it
Between lifting column (3) is installed；Lifting column (3) surface teeth are engaged with the teeth of driven gear roller a (2) and driven gear roller b (4)
Connection；The rotation of master gear roller (9) can sequentially drive carrier gear roller (10), driven gear roller a (2) and driven gear roller
The rotation of the rotation of b (4), driven gear roller a (2) and driven gear roller b (4) drives lifting column (3) rise and fall；Lifting column
(3) bottom is equipped with lifting pillar support (13)；One end of master gear roller (9) engaged with driving shaft (7) by teeth connection and
Driving shaft (7) being capable of interior external extension；Down cut box (1) outer wall is touched with driving shaft (7) by positioning internal tooth (5) and is connect, actively
Positioning external tooth (6) is provided on axis (7)；Positioning external tooth (6) can be fixed on down cut box by driving shaft (7) when inwardly retracting
(1) it in the positioning internal tooth (5) of outer wall, prevents driving shaft (7) from rotating, passes through engaging for driving shaft (7) and master gear roller (9), limit
The rotation for having made master gear roller (9), to limit moving up and down for lifting column (3)；It is fixed when driving shaft (7) is protruding
Position internal tooth (5) is detached with positioning external tooth (6), and driving shaft (7) can rotate；The other end of the driving shaft (7) is connected with handle
(8)。
2. a kind of variable direct shear apparatus shearing container of clipped position according to claim 1, it is characterized in that：Lifting column (3)
Top sequence installation be placed with permeable stone (12) and structural plane (11).
3. a kind of variable direct shear apparatus shearing container of clipped position according to claim 1, it is characterized in that：Down cut box
(1) top is placed with shear box (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610408351.5A CN105973721B (en) | 2016-06-13 | 2016-06-13 | A kind of direct shear apparatus shearing container that clipped position is variable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610408351.5A CN105973721B (en) | 2016-06-13 | 2016-06-13 | A kind of direct shear apparatus shearing container that clipped position is variable |
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| Publication Number | Publication Date |
|---|---|
| CN105973721A CN105973721A (en) | 2016-09-28 |
| CN105973721B true CN105973721B (en) | 2018-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610408351.5A Expired - Fee Related CN105973721B (en) | 2016-06-13 | 2016-06-13 | A kind of direct shear apparatus shearing container that clipped position is variable |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644780B (en) * | 2016-09-30 | 2019-07-02 | 中国矿业大学 | A kind of Thawing soil circulation shear experimental rig |
| CN109085070B (en) * | 2018-08-09 | 2020-10-09 | 河海大学 | Visual test device and method for shear characteristic research of soil and structure |
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| CN102207436A (en) * | 2010-07-26 | 2011-10-05 | 水利部交通运输部国家能源局南京水利科学研究院 | High performance direct shearing apparatus for large contact surfaces |
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Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH09166534A (en) * | 1995-12-18 | 1997-06-24 | Masaru Yamauchi | Simplified original position rock shearing testing machine and testing method usin the same |
| JP2980098B2 (en) * | 1998-04-17 | 1999-11-22 | 鹿島建設株式会社 | Shear specimen and method for producing shear specimen |
| JP4829663B2 (en) * | 2006-04-13 | 2011-12-07 | 学校法人 中央大学 | In-situ shear strength measuring device |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2352670Y (en) * | 1998-11-16 | 1999-12-08 | 中国科学院武汉岩土力学研究所 | Screw pushing rod type apparatus for taking-in or pushing-out core sample |
| CN102207436A (en) * | 2010-07-26 | 2011-10-05 | 水利部交通运输部国家能源局南京水利科学研究院 | High performance direct shearing apparatus for large contact surfaces |
| CN201885920U (en) * | 2010-11-02 | 2011-06-29 | 聊城大学 | Shearing container of direct shear apparatus |
| CN103335895A (en) * | 2013-06-28 | 2013-10-02 | 绍兴文理学院 | Multi-scale rock direct shear apparatus |
| CN103543069A (en) * | 2013-10-29 | 2014-01-29 | 中国科学院武汉岩土力学研究所 | Indoor stretching-shearing testing device for anchor rod |
| CN204008332U (en) * | 2014-08-01 | 2014-12-10 | 中国路桥工程有限责任公司 | A kind of interface layer direct shear test device that adapts to different size test specimen |
| CN205679490U (en) * | 2016-06-13 | 2016-11-09 | 徐州工程学院 | The variable direct shear apparatus shearing container of a kind of clipped position |
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| CN105973721A (en) | 2016-09-28 |
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