CN205786019U - Sample sample preparation and demoulding equipment are cut in a kind of pressure-controlled loess hollow cylinder circulation torsion - Google Patents
Sample sample preparation and demoulding equipment are cut in a kind of pressure-controlled loess hollow cylinder circulation torsion Download PDFInfo
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- CN205786019U CN205786019U CN201620719160.6U CN201620719160U CN205786019U CN 205786019 U CN205786019 U CN 205786019U CN 201620719160 U CN201620719160 U CN 201620719160U CN 205786019 U CN205786019 U CN 205786019U
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Abstract
The utility model discloses the circulation torsion of a kind of pressure-controlled loess hollow cylinder and cut sample sample preparation and demoulding equipment, including top board, base plate, middle plate, jackscrew, casing, external mold, interior mould, top cylinder, column, jack, fuel pressure gage, movable panel, strain gauge, baffle plate and character display；Described column is the four solid steel columns being symmetrically installed, and four root posts form rectangular-shaped body supports framework；Described top board and base plate are arranged on the two ends of column, and the center of top board offers screwed hole, and jackscrew coordinates with the screwed hole of top board center, and jackscrew rotates and can move up and down relative to top board；Described casing is can split hollow cylindrical tube；Described external mold is hollow cylindrical tube, and interior mould is filled circles column casing.This utility model novel structure, design science is reasonable；Principle is simple, it is simple to operation；Sample preparation disturbance is little, controls accurately, becomes sample rate high, favorable repeatability；Integration is good, with low cost.
Description
Technical field
This utility model relates to the circulation torsion of a kind of pressure-controlled loess hollow cylinder and cuts sample sample preparation and demoulding equipment, belongs to rock
Soil mechanics technical field.
Background technology
Hollow cylinder Cyclic torsional shear experimental uses hollow cylindrical sample, by executing the inside and outside wall of sample respectively during test
Add radial stress, apply axial force in the end of sample, then apply the torsional moment around axle center along sample end face, make sample be subject to
Circumferential shear load, thus ensureing that intermediate principal stress direction realizes the direction of big principal stress and minor principal stress vertical on the premise of constant
The straight plane in intermediate principal stress direction arbitrarily rotates, and can inquire into intermediate principal stress by the size controlling intermediate principal stress in test
Impact on ground dynamic trait, can more real ground foundation simulation soil layer under the dynamic loadings such as earthquake, traffic, wave
Complex stress condition, in soil dynamics research field, obtained relatively broad application.
Natural loess has macrovoid, weak cementing characteristic, is relatively easily generated preparing when hollow cylinder sample drills through inner core
Vertical fractures and cause sample to destroy；And the main physico-mechanical characteristic index of natural loess is affected by many factors, sample
Interindividual variation is relatively big, and utilizing natural loess research stress condition on when affecting of loess dynamic trait, sample is individual
Between the coupling that produces of the diversity of mechanics index of physics result of the test will be caused large effect, so that stress
The influence of loess dynamic trait is difficult to define by condition.Therefore, preparation is uniform, individual variation impact is less reinvents Huang
Soil sample, contributes to Accurate Analysis stress condition to the influence of loess dynamic trait and inherent mechanism thereof.
Reinvent method prepared by sample mainly to include being layered compacting process and static pressure preparation method two kinds.Layering compacting process is to utilize
Compaction test apparatus, according to set demand select difference hammer weight compaction hammer, fall away from and hammer number, it is ensured that the uniformity of sample, by soil
The method of real one-tenth sample is hit in material layering.This method is simple to operate, and the sample preparation cycle is short, can the degree of compaction of effective Control Assay, but
There is obvious boundary effect at the layer contact surface with layer, even if carrying out contact surface digging hair or wharf's pavement quality, sample is dynamic
Still easily produce at contact surface during power test and destroy, thus affect the accuracy of result of the test.Static pressure preparation method refers to pressurization
Earth material is compacted into the method for sample by equipment in a mold, in order to ensure the uniformity of sample, generally uses and is compacted from both mold ends
Method, inside sample, there is not contact surface when the method prepares sample, can preferably avoid boundary effect to sample mechanics
The impact of performance, but still sample end and the problem of middle part density variation can be there is, it is therefore desirable to right in sample preparation
The axial deformation of static pressure force value and sample accurately controls.
Reinventing the separation process of sample and mould in sample preparation is one of committed step in sample making course, and protects
Reduce extraneous factor during the card demoulding and the disturbance of sample is to ensure that the most critical place of sample preparation success rate.Try with for normal triaxial
The solid cylindrical sample tested is compared, and hollow cylinder torsional shear test requirements document sample possesses " thin-walled " feature and more becomes in the hope of result of the test
In ideal, this can greatly reduce the mechanical property of sample, say, that hollow cylinder sample compared to solid sample in sample preparation
During by more destructible during ectocine.Especially loess sample, owing to the structural strength of itself is relatively low so that it is by disturbance
The probability destroyed is bigger.Therefore, should avoid extraneous factor in sample making course, sample is disturbed by particularly radial external force as far as possible
Dynamic.Additionally, generally in the moisture content interval range that can become sample, loess has certain caking property, the sample inwall soil body and mould
Tool inner core coheres so that inner core is not easily taken out, or causes the disturbance of sample to be broken during taking out owing to removing the difference of speed
Bad.For mould in many lobes, although being more easy to remove relative to solid interior mould, but owing to the intensity of thin-walled loess sample is relatively low,
Radially-inwardly in removal process, mould the most easily makes sample produce destruction with the cohesive action of sample inwall.
Utility model content
This utility model purpose is to provide the circulation torsion of a kind of pressure-controlled loess hollow cylinder to cut sample sample preparation and the demoulding sets
Standby, principle is simple, it is simple to operation, and sample preparation disturbance is little, and success rate is high, controls accurately, and with low cost, to solve in prior art
The drawbacks described above caused.
In order to solve above-mentioned technical problem, this utility model provides following technical scheme:
Sample sample preparation and demoulding equipment are cut in a kind of pressure-controlled loess hollow cylinder circulation torsion, including top board, base plate, middle plate,
Jackscrew, casing, external mold, interior mould, top cylinder, column, jack, fuel pressure gage, movable panel, strain gauge, baffle plate and character display；
Described column is the four solid steel columns being symmetrically installed, and four root posts form rectangular-shaped body supports framework；Described top board
With the two ends that base plate is arranged on column, the center of top board offers screwed hole, and jackscrew coordinates with the screwed hole of top board center,
And jackscrew rotates and can move up and down relative to top board；Described casing is can split hollow cylindrical tube；Described external mold is hollow cylinder
Cylinder, interior mould is filled circles column casing, and the bottom of interior mould arranges the top of unfilled corner, Nei Mo and external mold and is all connected with baffle fit；Described
Baffle plate is detachable circular steel plate, between being arranged on bottom Nei Mo and the top of external mold and middle plate, can give during the demoulding during sample preparation
Remove；Described top cylinder is hollow cylindrical tube, and the top of top cylinder coordinates with external mold, interior mould, and the bottom of top cylinder coordinates with movable panel
Connect；The two ends of described movable panel are sleeved on column, and movable panel can move up and down along column；Described jack
Bottom is arranged on the base plate of bottom, and the top of jack is connected with movable panel, and fuel pressure gage is arranged on the side of jack；Institute
Stating middle plate is rectangle steel plate, and the center of middle plate offers through hole, and middle plate is fixed between column；Described strain gauge is arranged on
Between movable panel and middle plate, character display is arranged on middle plate, and character display is connected with strain gauge by wire.
As a kind of optimal technical scheme of the present utility model, described casing, top cylinder, baffle plate, external mold and the material of interior mould
Being rustless steel, the internal diameter of casing is slightly larger than sample external diameter, and baffle plate diameter is more than outer mode diameter, the through-hole aperture of middle plate center
More than sample external diameter and less than outer mode diameter.
As a kind of optimal technical scheme of the present utility model, between described top board and movable panel, arrange four along column
Spring, the jack tension force automatic back pressure by spring.
As a kind of optimal technical scheme of the present utility model, the overall dimensions of described middle plate and top board, movable panel, the end
Plate is identical.
As a kind of optimal technical scheme of the present utility model, described jack is dedicated hydraulic formula jack.
Beneficial effect: compared with conventional art, examination is cut in the circulation torsion of one of the present utility model pressure-controlled loess hollow cylinder
Sample sample preparation and demoulding equipment have the advantage that
1. principle is simple, it is simple to operation
Can realize the static pressure preparation of loess hollow cylinder sample two ends and demoulding functions, principle is simple, it is not necessary to through training i.e.
Can operate.The preparation of different size loess hollow cylinder sample can be realized by changing the mould of different size.Used
Parts effect is clear and definite, and manufacturing process is simple, it is easy to accomplish batch production；
2. sample preparation disturbance is little, controls accurately, becomes sample rate high, favorable repeatability
With axial deflection, sample making course is accurately controlled by controlling axial force, ensure to load by movable panel
Uniformity, reduce the Radial Perturbation of sample in knockout course by casing, sample is prepared as power and efficiency is the highest.Pass through
Sample preparation can realize the quantization of axial force and deflection and accurately controls repeatedly, can be effectively improved the repeatability of sample preparation, sample similarity
Height, has more comparability, so that the quantitative analysis of follow-up mechanical property test result more tends to accurate；
3. integration is good, with low cost
Making equipment achieve the dual-use function of sample preparation and the demoulding by one piece of dismountable baffle plate, integrated level is higher；
Save material by increasing integrated level, reduce the preparation cost of equipment；The manufacturing cost of this equipment is predicted according to market price
About 2000 yuan, have more price advantage compared to the equipment of same type.
Accompanying drawing explanation
Fig. 1 is that a kind of pressure-controlled loess hollow cylinder of the present utility model circulation is turned round and cut the total of sample sample preparation and demoulding equipment
Body structure chart；
Fig. 2 is that the mould cutting sample sample preparation and demoulding equipment is turned round in a kind of pressure-controlled loess hollow cylinder of the present utility model circulation
Tool top view；
Fig. 3 is that the mould cutting sample sample preparation and demoulding equipment is turned round in a kind of pressure-controlled loess hollow cylinder of the present utility model circulation
Tool side view；
Fig. 4 is that a kind of pressure-controlled loess hollow cylinder of the present utility model circulation torsion is cut outside sample sample preparation and demoulding equipment
Mode structure schematic diagram；
Fig. 5 is that a kind of pressure-controlled loess hollow cylinder of the present utility model circulation is turned round and cut the interior of sample sample preparation and demoulding equipment
Mode structure schematic diagram；
Fig. 6 is that the top cutting sample sample preparation and demoulding equipment is turned round in a kind of pressure-controlled loess hollow cylinder of the present utility model circulation
Barrel structure schematic diagram；
Fig. 7 is that the top cutting sample sample preparation and demoulding equipment is turned round in a kind of pressure-controlled loess hollow cylinder of the present utility model circulation
Plate structure schematic diagram；
Fig. 8 is that the end cutting sample sample preparation and demoulding equipment is turned round in a kind of pressure-controlled loess hollow cylinder of the present utility model circulation
Plate structure schematic diagram；
Fig. 9 is that the work cutting sample sample preparation and demoulding equipment is turned round in a kind of pressure-controlled loess hollow cylinder of the present utility model circulation
Dynamic top board structure schematic diagram；
Wherein: mould in plate, 4-jackscrew, 5-casing, 6-external mold, 7-in 1-top board, 2-base plate, 3-, 8-top cylinder, 9-column,
10-jack, 11-fuel pressure gage, 12-movable panel, 13-strain gauge, 14-baffle plate, 15-character display.
Detailed description of the invention
For the technological means making this utility model realize, creation characteristic, reach purpose and be easy to understand with effect, below
In conjunction with detailed description of the invention, this utility model is expanded on further.
As shown in Fig. 1-Fig. 9, the circulation torsion of a kind of pressure-controlled loess hollow cylinder cuts sample sample preparation and demoulding equipment, including top
Plate 1, base plate 2, middle plate 3, jackscrew 4, casing 5, external mold 6, interior mould 7, top cylinder 8, column 9, jack 10, fuel pressure gage 11, movable top
Plate 12, strain gauge 13, baffle plate 14 and character display 15；Described column 9 is the four solid steel columns being symmetrically installed, four root posts
9 form rectangular-shaped body supports framework；Described top board 1 and base plate 2 are arranged on the two ends of column 9, and the center of top board 1 is opened
Being provided with screwed hole, jackscrew 4 coordinates with the screwed hole of top board 1 center, and jackscrew 4 rotates and can move up and down relative to top board 1；Institute
State casing 5 for can split hollow cylindrical tube, casing 5 is placed between top board 1 and middle plate 3, detachably；Described external mold 6 is open circles
Column casing, interior mould 7 is filled circles column casing, and the bottom of interior mould 7 arranges unfilled corner, and the top of interior mould 7 and external mold 6 all coordinates with baffle plate 14 even
Connect；Described baffle plate 14 is detachable circular steel plate, is arranged on bottom the top of interior mould 7 and external mold 6 and middle plate 3 it during sample preparation
Between, dismounting can be given during the demoulding；Described top cylinder 8 is hollow cylindrical tube, and the top of top cylinder 8 coordinates with external mold 6, interior mould 7, top cylinder 8
Bottom is connected with movable panel 12；The two ends of described movable panel 12 are sleeved on column 9, and movable panel 12 can be along
Column 9 moves up and down；The bottom of described jack 10 is arranged on the base plate 2 of bottom, the top of jack 10 and movable panel
12 connect, and fuel pressure gage 11 is arranged on the side of jack 10；Described middle plate 3 is rectangle steel plate, and the center of middle plate 3 offers
Through hole, middle plate 3 is fixed between column 9；Described strain gauge 13 is arranged between movable panel 12 and middle plate 3, character display
15 are arranged on middle plate 3, and character display 15 is connected with strain gauge 13 by wire.
Wherein, the material of described casing 5, top cylinder 8, baffle plate 14, external mold 6 and interior mould 7 is rustless steel, the internal diameter of casing 5
Slightly larger than sample external diameter, baffle plate 14 diameter is more than external mold 6 diameter, the through-hole aperture of the center of middle plate 3 more than sample external diameter and
Less than external mold 6 diameter.
Wherein, arranging four springs along column 9 between described top board 1 and movable panel 12, jack 10 is by spring
Tension force automatic back pressure.
Wherein, the overall dimensions of described middle plate 3 and top board 1, movable panel 12, base plate 2 are identical.
Wherein, described jack 10 is dedicated hydraulic formula jack.
During work, utilizing band instrument can survey jack 10 is source of static pressure, by a set of hollow cylinder sample mould and four
Root post 9 and base plate 2, middle plate 3 form rectangular-shaped supporting frame, and two ends compacting earth material prepares loess hollow cylinder sample,
And utilize one group of strain gauge 13 and character display 15 to monitor the axial deflection of sample in sample making course, utilize the band instrument can
Survey 10 band Pressure gauge monitoring static pressures of jack；After prepared by sample, utilize jackscrew 4 to withstand interior mould 7, and utilize static pressure
The sample prepared at the uniform velocity is pushed among the casing 5 being preset between top board 1 and middle plate 3, the split casing 5 that removes, rotates top
Silk 4 to highest line journey, carefully takes out sample.
It is obvious to a person skilled in the art that this utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, it is possible to realize this practicality in other specific forms new
Type.Therefore, no matter from the point of view of which point, all should regard embodiment as exemplary, and be nonrestrictive, this practicality is new
The scope of type is limited by claims rather than described above, it is intended that by the containing of equivalency in claim that fall
All changes in justice and scope are included in this utility model.Should not be considered as any reference in claim limiting
Involved claim.
Claims (5)
1. pressure-controlled loess hollow cylinder circulation torsion cuts sample sample preparation and a demoulding equipment, including top board, base plate, middle plate, top
Silk, casing, external mold, interior mould, top cylinder, column, jack, fuel pressure gage, movable panel, strain gauge, baffle plate and character display；Its
It is characterised by: described column is the four solid steel columns being symmetrically installed, and four root posts form rectangular-shaped body supports framework；
Described top board and base plate are arranged on the two ends of column, and the center of top board offers the spiral shell of screwed hole, jackscrew and top board center
Pit coordinates, and jackscrew rotates and can move up and down relative to top board；Described casing is can split hollow cylindrical tube；Described external mold is
Hollow cylindrical tube, interior mould is filled circles column casing, and the bottom of interior mould arranges the top of unfilled corner, Nei Mo and external mold all can be with baffle fit
Connect；Described baffle plate is detachable circular steel plate, between being arranged on during sample preparation bottom Nei Mo and the top of external mold and middle plate, de-
Dismounting can be given during mould；Described top cylinder is hollow cylindrical tube, and the top of top cylinder coordinates with external mold, interior mould, and the bottom of top cylinder is with movable
Top board is connected；The two ends of described movable panel are sleeved on column, and movable panel can move up and down along column；Described
The bottom of jack is arranged on the base plate of bottom, and the top of jack is connected with movable panel, and fuel pressure gage is arranged on jack
Side；Described middle plate is rectangle steel plate, and the center of middle plate offers through hole, and middle plate is fixed between column；Described should
Becoming meter to be arranged between movable panel and middle plate, character display is arranged on middle plate, and character display by wire and is answered
Become meter to connect.
Sample sample preparation and demoulding equipment are cut in the circulation torsion of one the most according to claim 1 pressure-controlled loess hollow cylinder, its
It is characterised by: the material of described casing, top cylinder, baffle plate, external mold and interior mould is rustless steel, and the internal diameter of casing is slightly larger than outside sample
Footpath, baffle plate diameter is more than outer mode diameter, and the through-hole aperture of middle plate center is more than sample external diameter and less than outer mode diameter.
Sample sample preparation and demoulding equipment are cut in the circulation torsion of one the most according to claim 1 pressure-controlled loess hollow cylinder, its
Being characterised by: arrange four springs along column between described top board and movable panel, jack is returned automatically by the tension force of spring
Pressure.
Sample sample preparation and demoulding equipment are cut in the circulation torsion of one the most according to claim 1 pressure-controlled loess hollow cylinder, its
It is characterised by: the overall dimensions of described middle plate and top board, movable panel, base plate are identical.
Sample sample preparation and demoulding equipment are cut in the circulation torsion of one the most according to claim 1 pressure-controlled loess hollow cylinder, its
It is characterised by: described jack is dedicated hydraulic formula jack.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620719160.6U CN205786019U (en) | 2016-07-11 | 2016-07-11 | Sample sample preparation and demoulding equipment are cut in a kind of pressure-controlled loess hollow cylinder circulation torsion |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620719160.6U CN205786019U (en) | 2016-07-11 | 2016-07-11 | Sample sample preparation and demoulding equipment are cut in a kind of pressure-controlled loess hollow cylinder circulation torsion |
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| CN205786019U true CN205786019U (en) | 2016-12-07 |
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| CN201620719160.6U Expired - Fee Related CN205786019U (en) | 2016-07-11 | 2016-07-11 | Sample sample preparation and demoulding equipment are cut in a kind of pressure-controlled loess hollow cylinder circulation torsion |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106680055A (en) * | 2017-03-03 | 2017-05-17 | 天津城建大学 | Sample preparation device of multifunctional soft clay hollow cylindrical test sample and sample preparation method |
| CN106706449A (en) * | 2016-12-29 | 2017-05-24 | 中国电建集团华东勘测设计研究院有限公司 | Bulldozer for withdrawing hollow cylindrical soil sample |
| CN108168981A (en) * | 2018-02-24 | 2018-06-15 | 河南理工大学 | Laboratory standard test specimen makes and demoulding integrated device and its operating method |
| CN109596399A (en) * | 2018-12-06 | 2019-04-09 | 绍兴文理学院 | A kind of release method of three axis sample of the soil body |
| CN109946173A (en) * | 2019-04-15 | 2019-06-28 | 中国海洋大学 | Geotechnique's compression, large deformation recycle ring shear apparatus |
| CN110118686A (en) * | 2019-06-11 | 2019-08-13 | 山东大学 | Prepare the push-press type column test mould and method of rock analog material easy mold release |
| CN110160825A (en) * | 2019-05-31 | 2019-08-23 | 中国地质科学院水文地质环境地质研究所 | The device of sample in a kind of novel release soil sampler and compaction cylinder |
| CN110261201A (en) * | 2019-07-17 | 2019-09-20 | 长沙理工大学 | Production, demoulding integrated apparatus and its method for making sample of soil sample |
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- 2016-07-11 CN CN201620719160.6U patent/CN205786019U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706449A (en) * | 2016-12-29 | 2017-05-24 | 中国电建集团华东勘测设计研究院有限公司 | Bulldozer for withdrawing hollow cylindrical soil sample |
| CN106680055A (en) * | 2017-03-03 | 2017-05-17 | 天津城建大学 | Sample preparation device of multifunctional soft clay hollow cylindrical test sample and sample preparation method |
| CN106680055B (en) * | 2017-03-03 | 2023-11-28 | 天津城建大学 | Multifunctional soft clay hollow cylinder sample preparation device and sample preparation method |
| CN108168981A (en) * | 2018-02-24 | 2018-06-15 | 河南理工大学 | Laboratory standard test specimen makes and demoulding integrated device and its operating method |
| CN109596399A (en) * | 2018-12-06 | 2019-04-09 | 绍兴文理学院 | A kind of release method of three axis sample of the soil body |
| CN109596399B (en) * | 2018-12-06 | 2021-06-04 | 绍兴文理学院 | Demoulding method of triaxial soil sample |
| CN109946173A (en) * | 2019-04-15 | 2019-06-28 | 中国海洋大学 | Geotechnique's compression, large deformation recycle ring shear apparatus |
| CN109946173B (en) * | 2019-04-15 | 2020-06-30 | 中国海洋大学 | Geotechnical compression and large deformation cyclic ring shear apparatus |
| CN110160825A (en) * | 2019-05-31 | 2019-08-23 | 中国地质科学院水文地质环境地质研究所 | The device of sample in a kind of novel release soil sampler and compaction cylinder |
| CN110118686A (en) * | 2019-06-11 | 2019-08-13 | 山东大学 | Prepare the push-press type column test mould and method of rock analog material easy mold release |
| CN110261201A (en) * | 2019-07-17 | 2019-09-20 | 长沙理工大学 | Production, demoulding integrated apparatus and its method for making sample of soil sample |
| CN110261201B (en) * | 2019-07-17 | 2021-08-24 | 长沙理工大学 | Soil sample manufacturing and demolding integrated device and sample manufacturing method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20210711 |
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| CF01 | Termination of patent right due to non-payment of annual fee |