CN105571919B - A kind of ring type sample preparation device for cutting experiment for ring - Google Patents
A kind of ring type sample preparation device for cutting experiment for ring Download PDFInfo
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- CN105571919B CN105571919B CN201610073741.1A CN201610073741A CN105571919B CN 105571919 B CN105571919 B CN 105571919B CN 201610073741 A CN201610073741 A CN 201610073741A CN 105571919 B CN105571919 B CN 105571919B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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- Sampling And Sample Adjustment (AREA)
Abstract
The invention belongs to geotechnical engineering technical field of test equipment, disclose a kind of ring type sample preparation device for cutting experiment for ring, including：Pedestal, inner cylinder, outer barrel, support column and compaction cylinder；Two concentric grooves are opened up on pedestal, inner barrel and outer barrel is embedded in two concentric grooves respectively；Inner cylinder, outer barrel and pedestal roof constitute sample slot；Support column one end is vertically fixed on pedestal；Compaction cylinder is suspended in right over sample slot, is supported by support column；Wherein, compaction cylinder is tubular construction, and barrel can be embedded in sample slot；Journal stirrup is set on compaction cylinder, and is movably connected by journal stirrup and support column；In the case where execution examination sample compacting compression operates, compaction cylinder is slided along support column, close either far from the insertion of sample slot barrel or disengaging sample slot.Sample preparation device structure precision provided by the invention is high, and sample is put down, and it is good to hit real operating effect.
Description
Technical field
The present invention relates to geotechnical engineering technical field of test equipment, more particularly to a kind of ring type sample preparation for cutting experiment for ring
Device.
Background technology
The residual strength parameter one of important as description geomaterial, characterization reach larger with slow shear rate
Minimum shear strength when shear displacemant, once and sliding surface formed, the intensity of material is determined by its residual strength, therefore to residual
The research of residual strength is a part important in geomaterial characteristic research.Ring shear apparatus is invariable with shear surface because of it
And displacement keeps continuous feature, is widely recognized as and is answered in terms of the shearing strength and remaining shear parameters for measuring the soil body
With.
Ring shear apparatus equipment and technology is more mature at present, but lacks matched sample and prepare and hit real mold, needs
Experimenter settles a dispute by the parties concerned themselves according to experiment demand.And there is the following aspects in existing mold；Sample mould is mostly to spell
Dress form, mold seam crossing is not close, causes the soil body to be easy to squeeze out from gap in sample making course, soil body compactness is caused to go out
Existing deviation；Sample is packed into annular groove and out-of-flatness, will appear local compactness when causing by thickness control compactness and is unsatisfactory for
It is required that and then influencing the precision of entire sample testing intensity；When being controlled using compacted thickness, the sample height in ring can not be accurate
It measures so that height of the sample after hitting reality is not inconsistent with experiment predetermined value, and then influences the compactness of entire sample.
Invention content
The present invention provides a kind of ring type sample preparation device for cutting experiment for ring, solves conventional method in the prior art and is trying
Sample grinding tool is coarse, the technical issues of leading to reliability wretched insufficiency in terms of sample leveling, soil body density and compaction Control.
In order to solve the above technical problems, the present invention provides a kind of ring type sample preparation devices for cutting experiment for ring, including：Bottom
Seat, inner cylinder, outer barrel, support column and compaction cylinder；
Two concentric grooves are opened up on the pedestal, the inner cylinder and the outer barrel are embedded in described two concentric grooves respectively
It is interior；The inner cylinder, the outer barrel and the pedestal roof constitute sample slot；
Described support column one end is vertically fixed on the pedestal；
The compaction cylinder is suspended in right over the sample slot, is supported by the support column；
Wherein, the compaction cylinder is tubular construction, and barrel can be embedded in the sample slot；
Journal stirrup is set on the compaction cylinder, and is movably connected by the journal stirrup and the support column；
In the case where executing examination sample compacting compression operation, the compaction cylinder is slided along the support column, close or remote
From the sample slot, barrel is embedded or is detached from the sample slot.
Further, see-through window is set on the inner tube wall.
Further, the sounding mark of the sample slot is arranged in the see-through window.
Further, described device further includes：It flattens bar and puts down plate positioned at the leveling bar front end；
The leveling bar tail end is connected on the support column；
Wherein, relative altitude of the leveling bar on the support column is adjustable；
In the case where executing sample flattening operation in the sample slot, the leveling bar is suspended on the sample slot
Side, the plate of putting down is in the sample slot；
In the case where the support column rotates, the plate of putting down puts down sample in sample slot, is allowed to be in same height
Degree.
Further, the support column is fixed on the base, is located at the sample slot circle centre position；
Wherein, the support column is embedded in the compaction cylinder lumen centers, is flexibly connected with the compaction cylinder by journal stirrup；
In the case where executing examination sample compacting compression operation, the compaction cylinder is slided along the support column, close or remote
From the sample slot, barrel is embedded or is detached from the sample slot.
Further, a slip draw-in groove is set on the pedestal, and the slip draw-in groove is located at the sample slot concentric
Round sliding rail；
The support column bottom end can be slided in the slip draw-in groove along the slip draw-in groove；
Wherein, in the case where execution sample puts down operation, the support column is slided along the slip draw-in groove, embedded in described
Plate of putting down in sample slot puts down sample in sample slot, is allowed to be in sustained height.
Further, hole slot is set in the slip draw-in groove；
Wherein, the internal diameter of the hole slot matches with support column bottom outer diameter, and the support column is embedded in the hole slot
Interior, holding shaft is opposing stationary with the pedestal.
Further, the barrel top of the outer barrel is gradually increased by lower from upper radius；
Wherein, the barrel upper inner of the outer barrel is in the cambered surface shifted to and stretched outside cylinder.
Further, top limit fastener is arranged in the upper end of support column, limits the lifting height of the compaction cylinder；It is described
Bottom end limit fastener is set in the middle part of support column, limits the falling head of the compaction cylinder.
Further, one handle is set on the compaction cylinder；
Wherein, in the case where real compression sample manipulation is hit in execution, pass through the handle and push and pull the compaction cylinder.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages：
1, what is provided in the embodiment of the present application cuts the ring type sample preparation device of experiment for ring, using pedestal, inner cylinder, outer barrel,
Support column and compaction cylinder constitute examination sample compacting structure, and corresponding precision provides significantly；It is made up of and stablizes support column and compaction cylinder
Make structure toward restriking practical operation, ensure that sample can obtain stable hitting actual effect fruit；The impact force that synchronization sample is subject to is steady
It is fixed uniform, have good consolidation effect；On the other hand, sample slot constitutes the strict sample of seam by inner/outer tube and pedestal
Slot structure avoids rustic from influencing the sample preparation precision of sample.
2, what is provided in the embodiment of the present application cuts the ring type sample preparation device of experiment for ring, and window is arranged on inner tube wall
Mouthful, hit real compressive state convenient for observation sample；Further, deep identification is set in see-through window, and cooperation window is convenient for real
When understand sample processing efficiency.
3, what is provided in the embodiment of the present application cuts the ring type sample preparation device of experiment for ring, by flattening bar and front end
Putting down plate follows support column to act, and realizes that the sample for ring specimen slot puts down operation, greatly improves sample flatness, carries
It is high to hit sample density during practical operation is made, the reliability and stability of the size of sample parameter such as thickness.
4, what is provided in the embodiment of the present application cuts the ring type sample preparation device of experiment for ring, by the way that support column is rationally arranged
Position is located at sample groove center so that compaction cylinder and leveling bar can follow the high-precision realization of rotation to hit reality and put down behaviour
Make, ensures the effect of sample processing.
5, what is provided in the embodiment of the present application cuts the ring type sample preparation device of experiment for ring, and slip draw-in groove is arranged on pedestal
Operation is put down in limitation guiding support column movement, realization；Meanwhile joint support can be realized by multiple support columns, promotion is put down
What is operated is reliable and stable；On the other hand, multiple support columns can also be set in slip draw-in groove, support compaction cylinder jointly, ensured
The operating stably of compaction cylinder promotes sample processing effect and reliability.
6, what is provided in the embodiment of the present application cuts the ring type sample preparation device of experiment for ring, can be fixed by the way that hole slot is arranged
Support column is further ensured that the fixing intensity of support column, ensures during hitting real squeeze operation, and the positional precision of compaction cylinder begins
Eventually preferably；Expand sample filling entrance, optimization filling operation by the way that cambered surface epitaxial structure is arranged on outer barrel；By in support column
Limit fastener above and below upper setting, promotes the safety of compaction cylinder.
Description of the drawings
Fig. 1 is the structural schematic diagram of the ring type sample preparation device provided in an embodiment of the present invention that experiment is cut for ring.
Specific implementation mode
The embodiment of the present application is solved and is passed in the prior art by providing a kind of ring type sample preparation device for cutting experiment for ring
System method is coarse in sample mould, causes sample to flatten, the skill of soil body density and compaction Control aspect reliability wretched insufficiency
Art problem；The technique effect for promoting sample processing effect is reached.
In order to solve the above technical problems, the general thought that the embodiment of the present application provides technical solution is as follows：
A kind of ring type sample preparation device for cutting experiment for ring, including：Pedestal, inner cylinder, outer barrel, support column and compaction cylinder；
Two concentric grooves are opened up on the pedestal, the inner cylinder and the outer barrel are embedded in described two concentric grooves respectively
It is interior；The inner cylinder, the outer barrel and the pedestal roof constitute sample slot；
Described support column one end is vertically fixed on the pedestal；
The compaction cylinder is suspended in right over the sample slot, is supported by the support column；
Wherein, the compaction cylinder is tubular construction, and barrel can be embedded in the sample slot；
Journal stirrup is set on the compaction cylinder, and is movably connected by the journal stirrup and the support column；
In the case where executing examination sample compacting compression operation, the compaction cylinder is slided along the support column, close or remote
From the sample slot, barrel is embedded or is detached from the sample slot.
Through the above as can be seen that is provided in the embodiment of the present application cuts the ring type sample preparation device of experiment for ring,
Examination sample compacting structure is constituted using pedestal, inner cylinder, outer barrel, support column and compaction cylinder, corresponding precision provides significantly；Pass through support
Column and compaction cylinder formed it is stable make structure toward restriking practical operation, ensure that sample can obtain stable hitting actual effect fruit；Synchronization
The impact force stable and uniform that sample is subject to, has good consolidation effect；On the other hand, sample slot passes through inner/outer tube and pedestal
The strict sample slot structure of seam is constituted, rustic is avoided to influence the machining accuracy of sample.
In order to better understand the above technical scheme, in conjunction with appended figures and specific embodiments to upper
It states technical solution to be described in detail, it should be understood that the specific features in the embodiment of the present invention and embodiment are to the application skill
The detailed description of art scheme, rather than to the restriction of technical scheme, in the absence of conflict, the embodiment of the present application
And the technical characteristic in embodiment can be combined with each other.
Referring to Fig. 1, a kind of ring type sample preparation device for cutting experiment for ring provided in an embodiment of the present invention, including：Pedestal 1,
Inner cylinder 3, outer barrel 2, support column 5 and compaction cylinder 4.
Two concentric grooves, i.e. inside groove 103 and outer groove 102 are opened up on the pedestal 1, the inner cylinder 3 is embedded in described interior
Slot 103, the outer barrel 2 are embedded in the outer groove 102；The inner cylinder, the outer barrel and the pedestal roof constitute sample slot.
5 one end of the support column is vertically fixed on the pedestal 1, specifically, i.e. in the vertical direction, 5 phase of support column
It is pair vertical with pedestal 1 static.The compaction cylinder 4 is suspended in right over the sample slot, is supported by the support column 5；To
Ensure the compaction cylinder 4 can face sample slot in the vertical direction, ensure aligning accuracy so that sample hits real excellent result.
Wherein, the compaction cylinder 4 is tubular construction, is matched with sample slot in a ring；Barrel can be embedded in the sample slot
It is interior.
Journal stirrup 401 is set on the compaction cylinder 4, and is movably connected by the journal stirrup 401 and the support column 5；Specifically
, it is connected on support column 5, can be slid axially with respect to it using ring set.
Execute examination sample compacting compress operation in the case of, the compaction cylinder 4 along the support column 5 slide, it is close or
Far from the sample slot, barrel is embedded or is detached from the sample slot, to achieve the purpose that hit sample in real slot.
Truth condition is hit for the ease of observing sample in real time, see-through window 301 is set on 3 wall of the inner cylinder.Specifically, inside
One or more transparent window is inlayed on 3 walls of cylinder.
Further, real thickness is hit for the ease of understanding in real time, the depth of the sample slot is set in the see-through window 301
Scale designation.
After sample is loaded into sample slot, typically natural packing, height are uneven；In consideration of it, the present embodiment provides
Sample puts down structure.
Specifically, setting flattens bar 6 and puts down plate 601 positioned at 6 front end of the leveling bar；6 tail end of leveling bar
It is connected on the support column 5.
Wherein, in the case where executing sample flattening operation in the sample slot, the leveling bar 6 is suspended in the sample
Above slot, the plate 601 of putting down is in the sample slot.
In the case where the support column 5 rotates, the plate of putting down is moved along sample slot, puts down the sample in sample slot,
It is allowed to be in sustained height.
The present embodiment provides a kind of support column arrangement forms：Support column is set using with sample slot concentric, on support column
The compaction cylinder that square set connects, the sample slot of lower section and support column central axes overlap.The aligning accuracy of sample slot and compaction cylinder at this time
It is very high, hit real excellent effect.
Support column can along its central axes rotation, flatten bar follow support column from then rotation, around the central axes rotate,
Operation is put down to accurately be executed in the sample slot.
Wherein, the support column is embedded in the compaction cylinder lumen centers, is flexibly connected with the compaction cylinder by journal stirrup；
In the case of executing examination sample compacting compression operation, the compaction cylinder is slided along the support column, close to or far from the sample
Slot, barrel is embedded or is detached from the sample slot.
Further, support column can be that plurality of rods are linked together by fastener, whole rotation central axes with
The central axes of sample slot overlap.The structural strength of support column greatly promotes at this time, and contraposition reliability greatly improves.
Referring to Fig. 1, the present embodiment also provides another support column arrangement form：One slip draw-in groove is set on the pedestal 1
101, the slip draw-in groove 101 is located at the round sliding rail concentric with the sample slot.
The support column bottom end 501 can be slided in the slip draw-in groove 101 along the slip draw-in groove 101.
Specifically, compaction cylinder 4 is flexibly connected by journal stirrup 401 with the support column 5.
Wherein, in the case where execution sample puts down operation, the support column 5 is slided along the slip draw-in groove 101, is embedded in
Plate of putting down in the sample slot puts down sample in sample slot, is allowed to be in sustained height.
Further, the support column 5 in slip draw-in groove 101 can be one, can also be a multiple.
Specifically, in the case that support column 5 is two, compaction cylinder 4 is separately fixed at the support by two journal stirrups 401
On column 5.
Further, two support columns are about sample groove center axisymmetrical, are arranged on two sides of sample slot, two at this time
The whole center of gravity of journal stirrup 401 is on the central axis of compaction cylinder 4, and on the central axis of sample slot, structural stability
It is high.
Alternatively, support column can also be three or more, according to actual experiment needs；Wherein, ensure compaction cylinder
Center and the integral central of support column be located on the central axes of sample slot.
Further, a hole slot 104 is set in the slip draw-in groove 101；Wherein, the internal diameter of the hole slot 104 with it is described
5 radius bottom of support column now matches, and the support column 5 in the hole slot 104, keeps shaft and the pedestal 1 in turn
Opposing stationary, the stringent fixing intensity for promoting support column 5 ensures influence drop of vibrations when compaction cylinder 4 acts to positioning accuracy
To minimum.
The barrel top of the outer barrel 2 is gradually increased by lower from upper radius；Wherein, the barrel upper inner of the outer barrel 2
In the cambered surface 201 stretched outside cylinder is shifted to, loaded convenient for sample.
Top limit fastener 503 is arranged in 5 upper end of the support column, limits the lifting height of the compaction cylinder 4；The support
Bottom end limit fastener 502 is arranged in 5 middle part of column, limits the falling head of the compaction cylinder 4.
One handle 402 is set on the compaction cylinder 4；Wherein, in the case where real compression sample manipulation is hit in execution, pass through institute
It states handle 402 and pushes and pulls the compaction cylinder 4.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages：
1, what is provided in the embodiment of the present application cuts the ring type sample preparation device of experiment for ring, using pedestal, inner cylinder, outer barrel,
Support column and compaction cylinder constitute examination sample compacting structure, and corresponding precision provides significantly；Stabilization is formed by support column and compaction cylinder
Make structure toward restriking practical operation, ensure that sample can obtain stable hitting actual effect fruit；The impact force that synchronization sample is subject to is steady
It is fixed uniform, have good consolidation effect；On the other hand, sample slot constitutes the strict sample of seam by inner/outer tube and pedestal
Slot structure avoids rustic from influencing the machining accuracy of sample.
2, what is provided in the embodiment of the present application cuts the ring type sample preparation device of experiment for ring, and window is arranged on inner tube wall
Mouthful, hit real compressive state convenient for observation sample；Further, deep identification is set in see-through window, and cooperation window is convenient for real
When understand sample processing efficiency.
3, what is provided in the embodiment of the present application cuts the ring type sample preparation device of experiment for ring, by flattening bar and front end
Putting down plate follows support column to act, and realizes that the sample for ring specimen slot puts down operation, greatly improves sample flatness, just
The sample density in hitting practical operation and making, the reliability and stability of the size of sample parameter such as thickness.
4, what is provided in the embodiment of the present application cuts the ring type sample preparation device of experiment for ring, by the way that support column is rationally arranged
Position is located at sample groove center so that compaction cylinder and leveling bar can follow the high-precision realization of rotation to hit reality and put down behaviour
Make, ensures the effect of sample processing.
5, what is provided in the embodiment of the present application cuts the ring type sample preparation device of experiment for ring, and slip draw-in groove is arranged on pedestal
Operation is put down in limitation guiding support column movement, realization；Meanwhile joint support can be realized by multiple support columns, promotion is put down
What is operated is reliable and stable；On the other hand, multiple support columns can also be set in slip draw-in groove, support compaction cylinder jointly, ensured
The operating stably of compaction cylinder promotes sample processing effect and reliability.
6, what is provided in the embodiment of the present application cuts the ring type sample preparation device of experiment for ring, can be fixed by the way that hole slot is arranged
Support column is further ensured that the fixing intensity of support column, ensures during hitting real squeeze operation, and the positional precision of compaction cylinder begins
Eventually preferably；Expand sample filling entrance, optimization filling operation by the way that cambered surface epitaxial structure is arranged on outer barrel；By in support column
Limit fastener above and below upper setting, promotes the safety of compaction cylinder.
It should be noted last that the above specific implementation mode is merely illustrative of the technical solution of the present invention and unrestricted,
Although being described the invention in detail with reference to example, it will be understood by those of ordinary skill in the art that, it can be to the present invention
Technical solution be modified or replaced equivalently, without departing from the spirit of the technical scheme of the invention and range, should all cover
In the scope of the claims of the present invention.
Claims (8)
1. a kind of ring type sample preparation device for cutting experiment for ring, which is characterized in that including：Pedestal, outer barrel, support column, is hit inner cylinder
Real cylinder flattens bar and puts down plate positioned at the leveling bar front end；
Two concentric grooves are opened up on the pedestal, the inner cylinder and the outer barrel are embedded in described two concentric grooves respectively；
The inner cylinder, the outer barrel and the pedestal roof constitute sample slot；
Described support column one end is vertically fixed on the pedestal；
The compaction cylinder is suspended in right over the sample slot, is supported by the support column；
Wherein, the compaction cylinder is tubular construction, and barrel can be embedded in the sample slot；
Journal stirrup is set on the compaction cylinder, and is movably connected by the journal stirrup and the support column；
The leveling bar tail end is connected on the support column；
In the case where executing examination sample compacting compression operation, the compaction cylinder is slided along the support column, close to or far from institute
Sample slot is stated, barrel is embedded or is detached from the sample slot；
Relative altitude of the leveling bar on the support column is adjustable；
In the case where executing sample flattening operation in the sample slot, the leveling bar is suspended in above the sample slot, institute
It states and puts down plate in the sample slot；
In the case where the support column rotates, the plate of putting down puts down sample in sample slot, is allowed to be in sustained height.
2. the ring type sample preparation device of experiment is cut for ring as described in claim 1, it is characterised in that：It is arranged on the inner tube wall
See-through window.
3. the ring type sample preparation device of experiment is cut for ring as claimed in claim 2, it is characterised in that：The see-through window setting
The sounding mark of the sample slot.
4. the ring type sample preparation device of experiment is cut for ring as claimed in claim 3, it is characterised in that：It is arranged one on the pedestal
Slip draw-in groove, the slip draw-in groove are located at the round sliding rail of the sample slot concentric；
The support column bottom end can be slided in the slip draw-in groove along the slip draw-in groove；
Wherein, in the case where execution sample puts down operation, the support column is slided along the slip draw-in groove, is embedded in the sample
Plate of putting down in slot puts down sample in sample slot, is allowed to be in sustained height.
5. the ring type sample preparation device of experiment is cut for ring as claimed in claim 4, it is characterised in that：It is set in the slip draw-in groove
Set hole slot；
Wherein, the internal diameter of the hole slot matches with support column bottom outer diameter, and the support column is protected in the hole slot
Hold the opposing stationary of shaft and the pedestal.
6. as Claims 1 to 5 any one of them is used for the ring type sample preparation device that ring cuts experiment, it is characterised in that：It is described outer
The barrel top of cylinder, is gradually increased by lower from upper radius；
Wherein, the barrel upper inner of the outer barrel is in the cambered surface shifted to and stretched outside cylinder.
7. the ring type sample preparation device of experiment is cut for ring as claimed in claim 6, it is characterised in that：The upper end of support column is set
Top set end limit fastener, limits the lifting height of the compaction cylinder；Bottom end limit fastener is set in the middle part of the support column, limits institute
State the falling head of compaction cylinder.
8. the ring type sample preparation device of experiment is cut for ring as claimed in claim 7, it is characterised in that：It is arranged on the compaction cylinder
One handle；
Wherein, in the case where real compression sample manipulation is hit in execution, pass through the handle and push and pull the compaction cylinder.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610073741.1A CN105571919B (en) | 2016-02-02 | 2016-02-02 | A kind of ring type sample preparation device for cutting experiment for ring |
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| CN201610073741.1A CN105571919B (en) | 2016-02-02 | 2016-02-02 | A kind of ring type sample preparation device for cutting experiment for ring |
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| CN105571919B true CN105571919B (en) | 2018-08-24 |
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| CN105865875B (en) * | 2016-05-18 | 2018-09-11 | 北京安赛博技术有限公司 | A kind of experimental provision keeping soil physical property consistency |
| CN106442041A (en) * | 2016-08-22 | 2017-02-22 | 天津市建联工程勘测有限公司 | Compaction device corrector |
| CN106840810B (en) * | 2017-04-12 | 2018-05-15 | 中国地质大学（武汉） | A kind of ring shear test and preparation of soil sample device suitable for vertical shearing face |
| CN107515146B (en) * | 2017-09-22 | 2023-06-20 | 中国科学院武汉岩土力学研究所 | Annular remolded soil sample preparation device and sample preparation method for geotechnical annular shear test |
| CN111562152B (en) * | 2020-05-19 | 2023-05-16 | 河北建筑工程学院 | Integrated soil body module manufacturing device |
| CN113358492A (en) * | 2021-05-21 | 2021-09-07 | 扬州大学 | Multifunctional test equipment for automatic sample loading of ring shear apparatus and use method thereof |
| CN114113542B (en) * | 2021-11-19 | 2023-11-14 | 湖南科技学院 | Rock-soil and underground engineering model test traffic dynamic load simulation device |
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| CN105181416A (en) * | 2015-10-12 | 2015-12-23 | 北京工业大学 | High-visualization geotechnical triaxial test sample device and manufacturing method |
| CN205749052U (en) * | 2016-02-02 | 2016-11-30 | 中国科学院武汉岩土力学研究所 | A kind of ring type sample preparation device cutting experiment for ring |
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