CN207007596U - Without the axle sample preparation device of stickiness fine grained soil three - Google Patents
Without the axle sample preparation device of stickiness fine grained soil three Download PDFInfo
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- CN207007596U CN207007596U CN201721002863.8U CN201721002863U CN207007596U CN 207007596 U CN207007596 U CN 207007596U CN 201721002863 U CN201721002863 U CN 201721002863U CN 207007596 U CN207007596 U CN 207007596U
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- sample preparation
- preparation device
- pressing plate
- fine grained
- grained soil
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses one kind without the axle sample preparation device of stickiness fine grained soil three, it is related to a kind of sample preparation device of soil test, solve to pass through existing triaxial test sample preparation device sample preparation without stickiness fine grained soil, it is difficult to produce, the problem of sample mass can not be ensured, the technical scheme of use is：Without the axle sample preparation device of stickiness fine grained soil three, including base, sample holder, molding cylinder and pressing plate, sample holder is removably attachable to base, and in being fixed on base in sample holder and by hold-down bolt, molding cylinder is made up of molding jacket casing 2~4 arc plates；Aspirating hole and the first joint of connection are set in base；Pressing plate is cylindrical, and the diameter of pressing plate is adapted with the internal diameter of molding cylinder, and bellmouth is set at the center of pressing plate upper bottom surface, and aspirating hole and the second joint of connection are set in pressing plate.By emulsion film a set of on sample holder, the first joint is evacuated, latex film is close to molding tube inner surface, is easy to sample preparation to operate.By the second joint, it is negative pressure state to make obtained sample, avoids collapsing, tilts, is scattered.
Description
Technical field
A kind of sample preparation device of soil test is the utility model is related to, especially one kind is without the axle sample preparation device of stickiness fine grained soil three.
Background technology
Generally comprise sand and silt without stickiness fine grained soil, in the engineerings such as road, building, sand have easily compacting and after
The characteristics of phase sedimentation is small.Sand is under dense state, using the teaching of the invention it is possible to provide compared with large bearing capacity, is commonly used as good foundation material；Sand
Soil less stable, is a kind of soft foundation in a loose state.Silt is that the one kind frequently encountered in ground observation is native, powder
Soil is difficult to be compacted and to reinforce difficulty big.The hidden danger such as liquefaction, piping in engineering be present without stickiness fine grained soil, therefore, set in engineering
Before meter, it is very necessary to obtain the mechanical characteristic index without stickiness fine grained soil by test method.
Mainly obtained currently without stickiness fine grained soil stress-strain characteristics by ordinary triaxial test, test requirements document will be without stickiness
Three axle samples in the small three axles sample of diameter 3.91cm, high 8.0cm or diameter 6.18cm, high 12.5cm are made in fine grained soil.But
That no stickiness fine grained soil does not have a cohesive strength, existing method for making sample easily sample is caused in specimen is made damage or
It can not be molded, and the sample after being made easily collapses, and especially sample is easily destroyed in transfer process is moved.Generally, make
Make 10 groups only to succeed 1 group, have a strong impact on test efficiency.
Another scheme, which is selected on triaxial apparatus, directly carries out sample producing, but easily to three axles during sample compacting processed
Instrument causes to damage, and triaxial apparatus belongs to your smart instrument, and institute is inadvisable in this way.
Utility model content
The utility model provides one kind without the axle sample preparation device of stickiness fine grained soil three, solves no stickiness fine grained soil by existing three
Shaft experiment sample preparation device sample preparation, it is difficult to produce, the problem of sample mass can not be ensured.
Technical scheme is used by the utility model solves its technical problem：Without the axle sample preparation device of stickiness fine grained soil three, bag
Base, sample holder, molding cylinder and pressing plate are included, the sample holder is detachably connected on the base, the molding jacket casing is in sample
It is fixed in seat and by hold-down bolt on the base, molding cylinder is made up of 2~4 arc plates；Aspirating hole is set in base, is taken out
One end of stomata is connected to the gap between molding cylinder and sample holder, and the other end of aspirating hole sets the first joint；The pressing plate
Cylindrical, the diameter of pressing plate is adapted with the internal diameter of molding cylinder, and bellmouth is set at the center of pressing plate upper bottom surface, is set in pressing plate
Aspirating hole, one end of aspirating hole are connected to the bottom surface of pressing plate, and the other end of aspirating hole sets the second joint.
It is further：Also include compaction hammer without the axle sample preparation device of stickiness fine grained soil three, the compaction hammer is by guide rod and is placed on
Hammer body on guide rod is formed.
It is further：A hold-down bolt is respectively provided with every piece of arc plate.
It is further：It is connected through a screw thread between the base and sample holder or neck connects.
It is further：Mould cuff is also arranged on the outside of the molding cylinder.
It is further：At least one circle groove is set on the outside of the pressing plate.
It is further：At least one circle groove is set on the outside of the sample holder.Emulsion film a set of is on sample holder, outside sample holder
The groove of side is favorably improved the sealing between latex film and sample holder.
It is further：One circle groove is set on the base with molding cylinder contact position, sealing ring is set in groove.
The beneficial effects of the utility model are：Without the axle sample preparation device of stickiness fine grained soil three, by emulsion film a set of on sample holder, use
Vavuum pump carries out pumping process to the first joint, latex film is close to molding tube inner surface, is easy to next step sample preparation to operate.It is logical
Cross the second joint to be evacuated sample, it is temporarily negative pressure state to make obtained sample, avoids sample from collapsing, tilts, is scattered, protects simultaneously
Demonstrate,prove the uniformity of sample.By the way that without the axle sample preparation device of stickiness fine grained soil three, sample making course is simple to operate, is made without stickiness particulate
Native three axle sample success rates are close to 100%.
Brief description of the drawings
Fig. 1 is structural representation of the utility model without the axle sample preparation device of stickiness fine grained soil three.
Fig. 2 is the structural representation of mould cuff of the present utility model.
Parts, position and numbering in figure：Base 1, sample holder 2, molding cylinder 3, pressing plate 4, hold-down bolt 5, the first joint
6th, bellmouth 7, the second joint 8, mould cuff 9, sealing ring 10；Latex film 11, band 12.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in figure 1, the utility model is without the axle sample preparation device of stickiness fine grained soil three, including base 1, sample holder 2, molding cylinder 3
With pressing plate 4, the sample holder 2 is detachably connected on the base 1, such as is connected through a screw thread between base 1 and sample holder 2,
Or neck is set on base 1, sample holder 2 is stuck in the neck.Molding cylinder 3 is placed in sample holder 2 and solid by hold-down bolt 5
Due on the base 1, for the ease of dismantling molding cylinder 3, also avoid damaging sample when dismantling molding cylinder 3, molding cylinder 3 is by 2
~4 arc plate compositions, such as 3.Meanwhile each piece of arc plate is fixed on base 1 by hold-down bolt 5.Or molding
Cylinder 3 is respectively provided with a hold-down bolt 5 because two pieces of arc plates form on every piece of arc plate.
Because molding cylinder 3 is assembled by arc plate, in order to improve the stability of molding cylinder 3, the outside of molding cylinder 3 also covers
If mould cuff 9, mould cuff 9 is as shown in Figure 2.
Aspirating hole is set in base 1, and one end of aspirating hole is connected to the gap between molding cylinder 3 and sample holder 2, aspirating hole
The other end set the first joint 6.First joint 6 is used to be evacuated, and latex film 11 is close to the inner surface of molding cylinder 3, for the ease of
Exhaust, the inner surface of molding cylinder 3 can also set air discharge duct in circumferencial direction and length direction.
The pressing plate 4 is cylindrical, and the diameter of pressing plate 4 is adapted with the internal diameter of molding cylinder 3, the center of the upper bottom surface of pressing plate 4
Place sets bellmouth 7, and bellmouth 7 is used to ensure to carry out the accurate of triaxial test pressing position.Aspirating hole is set in pressing plate 4, is evacuated
The one end in hole is connected to the bottom surface of pressing plate 4, and the other end of aspirating hole sets the second joint 8.Sample is taken out by the second joint 8
Gas, it is temporary transient negative pressure state to make obtained sample.
Also include compaction hammer without the axle sample preparation device of stickiness fine grained soil three, compaction hammer is by guide rod and the hammer body structure being placed on guide rod
Into.
By carrying out sample preparation without the axle sample preparation device of stickiness fine grained soil three, first, sample holder 2 is installed on base 1, sample holder
Permeable stone is put on 2, latex film 11 is placed on sample holder 2, and is arranged rubber band or band 12.In order to improve the He of latex film 11
Seal between sample holder 2, the outside of sample holder 2 set at least one circle groove, and rubber band or band 12 are stuck in the recessed of sample holder 2
In groove.Secondly, combine molding cylinder 3 and be arranged on by housing screw 5 on base 1, the outside of molding cylinder 3 is pressed from both sides by mould cuff 9
Tight arc plate.One circle groove is set on base 1 with the contact position of molding cylinder 3, sealing ring 10 is set in groove.Again, vavuum pump is used
Pumping process is carried out to the first joint 6, latex film 11 is close to the inner surface of molding cylinder 3, is easy to next step sample preparation to operate.According to
Sample dry density will be layered to pour into and be layered without stickiness fine grained soil hits reality, then permeable stone and pressing plate 4, pressure are installed in sample upper surface
Plate 4 is placed in latex film 11 by band 12, the settable at least one circle groove of the periphery of pressing plate 4, the groove of the cocker pressing plate 4 of band 12
It is interior.Again, sample is evacuated by the second joint 8, it is temporary transient negative pressure state to make obtained sample, avoid sample from collapsing, tilt,
It is scattered.Finally, after sample prepares, vavuum pump is closed, and removes molding cylinder 3, now sample is temporary transient vacuum state, together with breast
Glued membrane 11 is removed together with sample holder 2, is directly placed into triaxial apparatus Sample devices.Without the axle sample preparation device of stickiness fine grained soil three, structure letter
Single, sample making course is easy to operate, is made without the axle sample success rate of stickiness fine grained soil three close to 100%.
Claims (8)
1. without the axle sample preparation device of stickiness fine grained soil three, it is characterised in that：Including base (1), sample holder (2), molding cylinder (3) and pressing plate
(4) sample holder (2), is detachably connected on the base (1), the molding cylinder (3) is placed in sample holder (2) and passes through pressure
Tight bolt (5) is fixed on the base (1), and molding cylinder (3) is made up of 2~4 arc plates；Aspirating hole is set in base (1), is taken out
One end of stomata is connected to the gap between molding cylinder (3) and sample holder (2), and the other end of aspirating hole sets the first joint (6)；
The pressing plate (4) is cylindrical, and the diameter of pressing plate (4) is adapted with the internal diameter of molding cylinder (3), the center of pressing plate (4) upper bottom surface
Place sets bellmouth (7), sets aspirating hole in pressing plate (4), one end of aspirating hole is connected to the bottom surface of pressing plate (4), aspirating hole
The other end sets the second joint (8).
2. as claimed in claim 1 without the axle sample preparation device of stickiness fine grained soil three, it is characterised in that：Also include compaction hammer, it is described to hit
Real hammer is made up of guide rod and the hammer body being placed on guide rod.
3. as claimed in claim 1 without the axle sample preparation device of stickiness fine grained soil three, it is characterised in that：It is all provided with every piece of arc plate
Put a hold-down bolt (5).
4. as claimed in claim 1 without the axle sample preparation device of stickiness fine grained soil three, it is characterised in that：The base (1) and sample holder
(2) it is connected through a screw thread between or neck connects.
5. as claimed in claim 1 without the axle sample preparation device of stickiness fine grained soil three, it is characterised in that：On the outside of the molding cylinder (3) also
It is arranged mould cuff (9).
6. as claimed in claim 1 without the axle sample preparation device of stickiness fine grained soil three, it is characterised in that：Set on the outside of the pressing plate (4)
At least one circle groove.
7. as claimed in claim 1 without the axle sample preparation device of stickiness fine grained soil three, it is characterised in that：Set on the outside of the sample holder (2)
Put at least one circle groove.
8. as claimed in claim 1 without the axle sample preparation device of stickiness fine grained soil three, it is characterised in that：On the base (1) and molding
Cylinder (3) contact position sets a circle groove, and sealing ring (10) is set in groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721002863.8U CN207007596U (en) | 2017-08-11 | 2017-08-11 | Without the axle sample preparation device of stickiness fine grained soil three |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721002863.8U CN207007596U (en) | 2017-08-11 | 2017-08-11 | Without the axle sample preparation device of stickiness fine grained soil three |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207007596U true CN207007596U (en) | 2018-02-13 |
Family
ID=61459496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721002863.8U Active CN207007596U (en) | 2017-08-11 | 2017-08-11 | Without the axle sample preparation device of stickiness fine grained soil three |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207007596U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107300492A (en) * | 2017-08-11 | 2017-10-27 | 中国电建集团成都勘测设计研究院有限公司 | Without the axle sample preparation device of stickiness fine grained soil three |
| CN116242654A (en) * | 2023-03-16 | 2023-06-09 | 沂源县东里自然资源管理所 | Shale sampling equipment and shale sampling method |
-
2017
- 2017-08-11 CN CN201721002863.8U patent/CN207007596U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107300492A (en) * | 2017-08-11 | 2017-10-27 | 中国电建集团成都勘测设计研究院有限公司 | Without the axle sample preparation device of stickiness fine grained soil three |
| CN116242654A (en) * | 2023-03-16 | 2023-06-09 | 沂源县东里自然资源管理所 | Shale sampling equipment and shale sampling method |
| CN116242654B (en) * | 2023-03-16 | 2023-08-18 | 沂源县东里自然资源管理所 | Shale sampling equipment and shale sampling method |
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