CN208109607U - A kind of shear box for ring shear apparatus - Google Patents
A kind of shear box for ring shear apparatus Download PDFInfo
- Publication number
- CN208109607U CN208109607U CN201820756357.6U CN201820756357U CN208109607U CN 208109607 U CN208109607 U CN 208109607U CN 201820756357 U CN201820756357 U CN 201820756357U CN 208109607 U CN208109607 U CN 208109607U
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- China
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- decorative cover
- pressure decorative
- sleeve
- inner cylinder
- shear
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model provides a kind of shear box for ring shear apparatus, including pedestal, the inner cylinder and outer barrel of coaxial arrangement are equipped on the upside of pedestal, the inner cylinder outer wall is equipped with several inner sleeves stacked along short transverse, outer barrel inner wall is equipped with several outer sleeves stacked along short transverse, inner cylinder upper end is equipped with the internal pressure decorative cover limited to inner sleeve, and outer barrel upper end is equipped with the external pressure decorative cover limited to outer sleeve.The shear box overcomes the frictional force of shear box inner wall and sample, shears situation closer to the actual soil body.
Description
Technical field
The utility model belongs to annular shearing test technical field, in particular to a kind of shear box that can overcome wall friction.
Background technique
In geotechnical engineering field, ring shear apparatus is as a kind of for studying the height of soil mechanical characteristic under the conditions of big shear displacemant
Grade soil test equipment, the mechanical mechanism research and its side slope that Analysis of Slope Stability, geological disaster occur are gradual broken
Bad process study etc. has important academic significance.Currently, most popular two kinds of ring shear apparatus are that Bishop ring is cut both at home and abroad
The shear box of instrument and Bromhead ring shear apparatus, the design of Bishop ring shear apparatus is two sample boxs separated above and below, and upper box is fixed not
Dynamic, lower box rotation, sample is sheared box in the middle part of place and destroys being located at upper and lower shear box and crack, and has a disadvantage in that sample is easy
It is squeezed leakage.Bromhead ring shear apparatus then uses the monoblock type sample box not cracked, and sample box is fixed, and torque is applied to
On Loading Plate at the top of sample, sample is sheared destruction on the top of adjacent load plate, although Bromhead ring shear apparatus is not present
Sample problem is leaked, but sample is with sample box inner wall that there is also very big frictions, this results in the sample in shear box, and the entire soil body is all
Different degrees of shearing can be generated, and in reality, for gliding mass, one only is formed in a certain depth of inside soil body
Shear surface, therefore the case where general ring shear test simulation, is not exclusively consistent with actual conditions.
Summary of the invention
The technical problem to be solved by the utility model is to provide a kind of shear box for ring shear apparatus, overcome shear box with
The frictional force of sample shears situation closer to the actual soil body.
In order to solve the above technical problems, technical solution used by the utility model is：A kind of shearing for ring shear apparatus
Box, including pedestal, pedestal upside are equipped with the inner cylinder and outer barrel of coaxial arrangement, and the inner cylinder outer wall is equipped with several along highly
The inner sleeve that direction stacks, outer barrel inner wall are equipped with several outer sleeves stacked along short transverse, and inner cylinder upper end is equipped with internal
The internal pressure decorative cover of lantern ring limit, outer barrel upper end are equipped with the external pressure decorative cover limited to outer sleeve.
In preferred scheme, the inner cylinder upper end and outer barrel upper end are equipped with threaded hole, internal pressure decorative cover and outer press cover
Circle is equipped with tapped through hole corresponding with threaded hole, and bolt, which is mounted in tapped through hole and threaded hole, realizes internal pressure decorative cover and outer
The dismantling connection of gland circle.
In preferred scheme, the upside of top layer's inner sleeve is concordant with inner cylinder upper surface, the outer sleeve of top layer
It is concordant with outer barrel upper surface, clearance fit between inner sleeve and between top layer's inner sleeve and internal pressure decorative cover, outer sleeve it
Between and top layer's outer sleeve and external pressure decorative cover between clearance fit.
In preferred scheme, the inner sleeve inner wall and inner cylinder outer wall clearance fit, in outer sleeve outer wall and outer barrel
Wall clearance fit.
In preferred scheme, the internal pressure decorative cover medial surface is concordant with inner cylinder medial surface, internal pressure decorative cover lateral surface with it is interior
Lantern ring lateral surface is concordant.
In preferred scheme, the medial surface of the external pressure decorative cover is concordant with outer sleeve medial surface, the lateral surface of external pressure decorative cover
It is concordant with the lateral surface of outer barrel.
A kind of shear box for ring shear apparatus provided by the utility model, by the inner cylinder and outer barrel of coaxial arrangement,
Between the inner cylinder and outer barrel for making cyclic annular soil sample setting, meanwhile, guarantee that the central axis of inner sleeve and outer sleeve is overlapped, setting
Internal pressure decorative cover and external pressure decorative cover guarantee that vertical displacement will not occur for inner sleeve and outer sleeve, in the specific use process, by
It is connect in inner sleeve and inner cylinder and outer sleeve with outer barrel for on-fixed, sample is contacted with inner sleeve and outer sleeve, can be incited somebody to action
Frictional force between soil sample and inner sleeve and outer sleeve be converted into sliding friction between inner sleeve and inner cylinder and outer sleeve with
Force of sliding friction between outer cylinder scapus is cut to overcome the friction between sample and shear box closer to the actual soil body
Cut situation.It is between inner sleeve and outer due to clearance fit between inner sleeve and between outer sleeve in preferred scheme
It opposite can slide between lantern ring, since the cutting torsion that every thickness degree soil sample is subject to is different, cause and inner sleeve and housing
Frictional force between ring is different, by sliding relatively between inner sleeve and between outer sleeve, realizes sample and was being cut
To the different differentiation of dead load is sheared suffered by each infinitesimal layer in journey, it can preferably weaken shear box to ring shear test not
Benefit influences.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawing：
Fig. 1 is the overall structure diagram of the utility model.
Fig. 2 is the cross-sectional view of the utility model.
In figure：Pedestal 1, inner cylinder 2, outer barrel 3, inner sleeve 4, outer sleeve 5, internal pressure decorative cover 6, external pressure decorative cover 7, screw thread are logical
Hole 8.
Specific embodiment
As shown in Figure 1 and 2, a kind of shear box for ring shear apparatus, including pedestal 1 are equipped with coaxial arrangement on the upside of pedestal 1
Inner cylinder 2 and outer barrel 3, pedestal 1 and Bromhead ring shear apparatus match, and 2 outer wall of inner cylinder is equipped with several along height side
To the inner sleeve 4 of stacking, 3 inner wall of outer barrel be equipped with it is several along short transverse stack outer sleeves 5,2 upper end of inner cylinder be equipped with pair
The internal pressure decorative cover 6 that inner sleeve 4 limits, 3 upper end of outer barrel are equipped with the external pressure decorative cover 7 limited to outer sleeve 5.
In the present embodiment, inner sleeve 4 with outer sleeve 5 is that coefficient of friction is low, and ring made of the higher material of rigidity
Shape thin slice, with a thickness of：3 ~ 6mm, coefficient of friction is low and the resistance of the friction in experimentation can be effectively reduced in the higher material of rigidity
Power, while resisting deformation caused by load.
The inner cylinder upper end 2 and 3 upper end of outer barrel are equipped with threaded hole, internal pressure decorative cover 6 and external pressure decorative cover 7 be equipped with
The corresponding tapped through hole 8 of threaded hole, bolt, which is mounted in tapped through hole 8 and threaded hole, realizes internal pressure decorative cover 6 and external pressure decorative cover 7
Dismantling connection.Internal pressure decorative cover 6 and external pressure decorative cover 7 are bolted realization and are detachably connected, and facilitate inner sleeve 4 and outer sleeve
5 dismounting is conducive to that lantern ring 4 and outer sleeve 5 are cleaned and replaced.
The upside of top layer's inner sleeve 4 is concordant with 2 upper surface of inner cylinder, on the outer sleeve 5 and outer barrel 3 of top layer
End face is concordant, clearance fit between inner sleeve 4 and between top layer's inner sleeve 4 and internal pressure decorative cover 6, between outer sleeve 5 and
Clearance fit between top layer's outer sleeve 5 and external pressure decorative cover 7.
It can guarantee opposite can slide between outer sleeve 5 between inner sleeve 4, because in test suffered by every layer soil body
To frictional force be different, by the opposite sliding between inner sleeve 4 between outer sleeve 5, guarantee the soil body with inner sleeve 4 with
And outer sleeve 5 slides, and shear the lower part soil body will not, can preferably weaken the unfavorable shadow that shear box cuts experiment to ring
It rings.
4 inner wall of inner sleeve and 2 outer wall clearance fit of inner cylinder, 5 outer wall of outer sleeve are matched with 3 inner wall gap of outer barrel
It closes.
Both can guarantee inner cylinder 2 and outer barrel 3 to the guiding and position-limiting action of inner sleeve 4 and outer sleeve 5, meanwhile, protect
Demonstrate,proving inner sleeve 4 and outer sleeve 5 can slide respectively with respect to inner cylinder 2 and outer barrel 3.
6 medial surface of internal pressure decorative cover is concordant with 2 medial surface of inner cylinder, 6 lateral surface of internal pressure decorative cover and 4 lateral surface of inner sleeve
Concordantly.
The medial surface of the external pressure decorative cover 7 is concordant with 5 medial surface of outer sleeve, lateral surface and the outer barrel 3 of external pressure decorative cover 7
Lateral surface is concordant.
It prevents internal pressure decorative cover 6 or external pressure decorative cover 7 from influencing the normal loading of sample, it is equal to guarantee that shear box can provide sample
Even confining pressure.
When specifically used, inner sleeve 4 is successively sleeved on 2 outer wall of inner cylinder, outer sleeve 5 is successively mounted on outer barrel 3, peace
Mounted in guaranteeing that inner sleeve 4 and each layer of outer sleeve 5 all flatten in the process, after inner sleeve 4 and outer sleeve 5 are installed, installation
Internal pressure decorative cover 6 and external pressure decorative cover 7 are limited.
When ring shear test, Loading Plate provides Normal stress and torque can since soil sample is contacted with inner sleeve 4 and outer sleeve 5
Sliding friction between inner sleeve 4 and inner cylinder 2 and outer is converted by the frictional force between soil sample and inner sleeve 4 and outer sleeve 5
Force of sliding friction between lantern ring 5 and outer barrel 3 prevents the soil sample in shear box from failure by shear occurs；
Since the depth of soil sample is different, torque suffered by per unit thickness soil sample layer is different, further each list
Frictional force between position thickness soil sample layer and inner sleeve 4 and outer sleeve 5 is different, and can between outer sleeve 5 between inner sleeve 4
Opposite sliding, can preferably weaken the adverse effect that shear box cuts experiment to ring.
The above embodiments are only the optimal technical scheme of the utility model, and are not construed as the limit for the utility model
System, the technical solution that the protection scope of the utility model should be recorded with claim, the technical solution recorded including claim
The equivalents of middle technical characteristic are protection scope.Equivalent replacement i.e. within this range is improved, also in the utility model
Protection scope within.
Claims (6)
1. a kind of shear box for ring shear apparatus, it is characterised in that：Including pedestal（1）, pedestal（1）Upside is equipped with coaxial arrangement
Inner cylinder（2）And outer barrel（3）, the inner cylinder（2）Outer wall is equipped with several inner sleeves stacked along short transverse（4）, outer cylinder
Body（3）Inner wall is equipped with several outer sleeves stacked along short transverse（5）, inner cylinder（2）Upper end is equipped with to inner sleeve（4）Limit
Internal pressure decorative cover（6）, outer barrel（3）Upper end is equipped with to outer sleeve（5）The external pressure decorative cover limited（7）.
2. a kind of shear box for ring shear apparatus according to claim 1, it is characterised in that：The inner cylinder（2）Upper end
And outer barrel（3）Upper end is equipped with threaded hole, internal pressure decorative cover（6）With external pressure decorative cover（7）It is equipped with screw thread corresponding with threaded hole
Through-hole（8）, bolt is mounted on tapped through hole（8）With realization internal pressure decorative cover in threaded hole（6）And external pressure decorative cover（7）Disassembly connect
It connects.
3. a kind of shear box for ring shear apparatus according to claim 1, it is characterised in that：Top layer's inner sleeve
（4）Upside and inner cylinder（2）Upper surface is concordant, the outer sleeve of top layer（5）With outer barrel（3）Upper surface is concordant, inner sleeve
（4）Between and top layer's inner sleeve（4）With internal pressure decorative cover（6）Between clearance fit, outer sleeve（5）Between and top layer outside
Lantern ring（5）With external pressure decorative cover（7）Between clearance fit.
4. a kind of shear box for ring shear apparatus according to claim 1, it is characterised in that：The inner sleeve（4）Inner wall
With inner cylinder（2）Outer wall clearance fit, outer sleeve（5）Outer wall and outer barrel（3）Inner wall clearance fit.
5. a kind of shear box for ring shear apparatus according to claim 1, it is characterised in that：The internal pressure decorative cover（6）It is interior
Side and inner cylinder（2）Medial surface is concordant, internal pressure decorative cover（6）Lateral surface and inner sleeve（4）Lateral surface is concordant.
6. a kind of shear box for ring shear apparatus according to claim 1, it is characterised in that：The external pressure decorative cover（7）'s
Medial surface and outer sleeve（5）Medial surface is concordant, external pressure decorative cover（7）Lateral surface and outer barrel（3）Lateral surface it is concordant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820756357.6U CN208109607U (en) | 2018-05-21 | 2018-05-21 | A kind of shear box for ring shear apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820756357.6U CN208109607U (en) | 2018-05-21 | 2018-05-21 | A kind of shear box for ring shear apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208109607U true CN208109607U (en) | 2018-11-16 |
Family
ID=64115236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820756357.6U Active CN208109607U (en) | 2018-05-21 | 2018-05-21 | A kind of shear box for ring shear apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208109607U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111089784A (en) * | 2020-01-19 | 2020-05-01 | 中国科学院武汉岩土力学研究所 | Shearing box and ring shear test device |
| CN112540012A (en) * | 2020-12-04 | 2021-03-23 | 哈尔滨工业大学 | Annular pure shear loading method and device for pipe |
-
2018
- 2018-05-21 CN CN201820756357.6U patent/CN208109607U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111089784A (en) * | 2020-01-19 | 2020-05-01 | 中国科学院武汉岩土力学研究所 | Shearing box and ring shear test device |
| CN112540012A (en) * | 2020-12-04 | 2021-03-23 | 哈尔滨工业大学 | Annular pure shear loading method and device for pipe |
| CN112540012B (en) * | 2020-12-04 | 2023-11-14 | 哈尔滨工业大学 | Annular pure shear loading method and device for pipe |
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