CN206960263U - A kind of direct shear box for being applied to research contact face mechanical property - Google Patents
A kind of direct shear box for being applied to research contact face mechanical property Download PDFInfo
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- CN206960263U CN206960263U CN201720907812.3U CN201720907812U CN206960263U CN 206960263 U CN206960263 U CN 206960263U CN 201720907812 U CN201720907812 U CN 201720907812U CN 206960263 U CN206960263 U CN 206960263U
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- simulated block
- direct shear
- inner box
- box
- shear box
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Abstract
The utility model discloses a kind of direct shear box for being applied to research contact face mechanical property, the direct shear box includes upper direct shear box, lower direct shear box and simulated block, lower direct shear box includes shell and inner box, inner box is fixed in shell, inner box is square, inner box is provided with round recessed, simulated block is in round pie, the radius of simulated block is identical with the radius of round recessed, the height of simulated block is identical with the depth of round recessed, multiple V-grooves along the radially uniform arrangement of simulated block are offered on one surface of simulated block, each V-groove is radially connected in simulated block with simulated block side wall, one angle of inner box top surface is provided with angle index, angular range is 0 90 °, 45 ° of graduation marks diagonal corresponding with inner box top surface overlaps.The direct shear box is simple in construction, on the basis of roughness is quantitatively described, can carry out the research of contact face mechanical property.
Description
Technical field
It the utility model is related to laboratory soil test technical field, and in particular to it is special that one kind is applied to research contact face mechanical
The direct shear box of property.
Background technology
Contact face mechanical experiment is a kind of important soil test, can be coarse with certain to rock-soil material by the experiment
The mechanical characteristic when structural plane of degree interacts is tested, and is the associated problem encountered in engineering practice
Design treatment provides call parameter.Indoor direct shear test is to test the conventional test method of contact face mechanical property, the pass of experiment
Key is the structural plane for building different roughness, and the roughness of structural plane is described, for carrying out contrast test.So far exist
Geotechnical testament technical field, description of few specifications to roughness require the strict restriction of progress, in test process often
Qualitative description, shortage section are carried out to the roughness of structural plane using the wording such as " smooth ", " more smooth ", " coarse ", " rougher "
Learn foundation.
The content of the invention
In order to solve the above-mentioned problems of the prior art, the utility model provides a kind of suitable for research contact traction
The direct shear box of characteristic is learned, the direct shear box is simple in construction, can carry out contact surface on the basis of roughness is quantitatively described
The research of mechanical characteristic.
Technical scheme is used by realizing the utility model above-mentioned purpose：
A kind of direct shear box for being applied to research contact face mechanical property, including upper direct shear box and lower direct shear box, lower direct shear box
Including shell and inner box, inner box is fixed in shell, and inner box is provided with round recessed, in addition to simulated block, simulated block are in
Round pie, the radius of simulated block is identical with the radius of round recessed, and the height of simulated block is identical with the depth of round recessed, simulated block
Offer multiple V-grooves along the radially uniform arrangement of simulated block on one surface, each V-groove simulated block radially with simulated block side
Wall is connected, and inner box top surface is provided with angle index.
Inner box is square, and angle index is arranged on an angle of inner box top surface, and angular range is 0-90 °, 45 ° of quarters
Line diagonal corresponding with inner box top surface is spent to overlap.
The bottom center of round recessed is provided with through hole.
Compared with prior art, it is the advantages of the utility model with beneficial effect：
1st, by setting groove depth, the groove width V-groove different with separation on simulated block surface, can simulate different coarse
The structural plane of degree, groove depth, groove width and separation can also be used to realize the quantitative description to structural plane roughness.
The 2nd, 0-90 ° of angle index is set in inner box top surface, rotation is put into the simulated block in lower direct shear box, makes simulated block
The V-groove at top is in different angles from shear direction, is another effective ways for constructing different roughness structural plane, while
Structural plane roughness can be quantitatively described with the anglec of rotation.
3rd, through hole is set in round recessed bottom center, can under simulated block is closely embedded in direct shear box in the case of it is convenient will
It takes out.
4th, the material of simulated block determines the change of mechanical characteristic on corresponding contact face, and simulated block can be bloom, coagulation
Soil block, plexiglass block etc., the contact surface of a variety of unlike materials can be tested, it is applied widely.
The bright book of accompanying drawing
Fig. 1 is the structural representation suitable for studying the direct shear box of contact face mechanical property.
Fig. 2 is the structural representation of lower direct shear box.
Fig. 3 is the structural representation of simulated block.
Fig. 4 is Fig. 3 front view.
Fig. 5 is the installation diagram of lower direct shear box and simulated block.
Wherein, direct shear box under the upper direct shear boxes of 1-, 2-, 3- shells, 4- inner box, 5- round recesseds, 6- simulated blocks, 7-V type grooves,
8- angle indexs, 9- through holes.
Embodiment
The utility model is described in detail with reference to embodiment.
The structure of the direct shear box provided by the utility model for being applied to research contact face mechanical property is as shown in figure 1, this is straight
Cutting box includes upper direct shear box 1, lower direct shear box 2 and simulated block 6.
As shown in Fig. 2 lower direct shear box includes shell 3 and inner box 4, inner box 4 is fixed in shell 3, and inner box 4 is in side
Shape.Inner box 4 is provided with round recessed 5, and the bottom center of round recessed 5 is provided with through hole 9, and it is in order to tight in simulated block to set through hole
Conveniently it is drawn off in the case that direct shear box is interior under close insertion.One angle of the top surface of inner box 4 is provided with angle index 8, angle
Scope is 0-90 °, and 45 ° of graduation marks diagonal corresponding with the top surface of inner box 4 overlaps.Angle index 9 is used for testing experiment process
The angle of middle V-groove 7 and shear direction.It is because either justifying that angle index is only provided with an angle of inner box top surface
Groove or square inner box, all it is symmetrical structure, the angle index in the range of 90 ° is set, it is possible to describes V-groove with cutting
Butt is to all situations into different angles.
As shown in Figure 3 and Figure 4, simulated block 6 is in round pie, and the radius of simulated block 6 is identical with the radius of round recessed 5, simulation
The height of block 6 is identical with the depth of round recessed 5.The material of simulated block 6 can be concrete, steel, lucite or its
Its material.Multiple V-grooves 7 along the radially uniform arrangement of simulated block are offered on one surface of simulated block 6, each V-groove 7 is being simulated
Block is radially connected with simulated block side wall.By change V-groove 7 groove depth, groove width and separation and with shear direction
Angle, to simulate the structure interface of different roughness.
The application method of the direct shear box provided by the utility model for being applied to research contact face mechanical property is as follows：
Before experiment, first simulated block is put into the round recessed of lower direct shear box, makes simulated block coarse face-up with V-groove,
Rotary simulation block, make the angle of V-groove and shear direction at the top of simulated block consistent with experimental design, V-groove and shear direction
Angle is determined by angle index, groove depth, groove width and the separation of material, V-groove to simulated block used and with cutting
Butt to angle recorded, then according to indoor direct shear test operating procedure successively fixed upper shear box, load soil sample,
Loading Normal stress, shear parameters are set and carry out contact surface direct shear test.If after off-test under Module-embedding used
When tightlier causing to be difficult to take out in direct shear box, thin bar can be used to pass through the through hole of lower direct shear box bottom, by module from lower staight scissors
Ejected in box.
Claims (3)
1. a kind of direct shear box for being applied to research contact face mechanical property, including upper direct shear box and lower direct shear box, lower direct shear box bag
Shell and inner box are included, inner box is fixed in shell, and inner box is provided with round recessed, it is characterised in that：Also include simulated block,
Simulated block is in round pie, and the radius of simulated block is identical with the radius of round recessed, and the height of simulated block is identical with the depth of round recessed,
Offer multiple V-grooves along the radially uniform arrangement of simulated block on one surface of simulated block, each V-groove simulated block radially with
Simulated block side wall is connected, and inner box top surface is provided with angle index.
2. the direct shear box according to claim 1 for being applied to research contact face mechanical property, it is characterised in that：Inner box is in
Square, angle index is arranged on an angle of inner box top surface, and angular range is 0-90 °, 45 ° of graduation marks and inner box top surface
Corresponding diagonal overlap.
3. the direct shear box according to claim 1 for being applied to research contact face mechanical property, it is characterised in that：Round recessed
Bottom center is provided with through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720907812.3U CN206960263U (en) | 2017-07-25 | 2017-07-25 | A kind of direct shear box for being applied to research contact face mechanical property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720907812.3U CN206960263U (en) | 2017-07-25 | 2017-07-25 | A kind of direct shear box for being applied to research contact face mechanical property |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206960263U true CN206960263U (en) | 2018-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720907812.3U Active CN206960263U (en) | 2017-07-25 | 2017-07-25 | A kind of direct shear box for being applied to research contact face mechanical property |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113029821A (en) * | 2021-03-31 | 2021-06-25 | 重庆科创职业学院 | Direct shear box for researching mechanical characteristics of contact surface |
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2017
- 2017-07-25 CN CN201720907812.3U patent/CN206960263U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113029821A (en) * | 2021-03-31 | 2021-06-25 | 重庆科创职业学院 | Direct shear box for researching mechanical characteristics of contact surface |
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