CN105571919A - Ring type sample preparation device for ring shear tests - Google Patents
Ring type sample preparation device for ring shear tests Download PDFInfo
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- CN105571919A CN105571919A CN201610073741.1A CN201610073741A CN105571919A CN 105571919 A CN105571919 A CN 105571919A CN 201610073741 A CN201610073741 A CN 201610073741A CN 105571919 A CN105571919 A CN 105571919A
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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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Abstract
The invention belongs to the technical field of geotechnical engineering testing equipment, and discloses a ring type sample preparation device for ring shear tests. The device comprises a base, an inner barrel, an outer barrel, a supporting column and a compaction barrel. The base is provided with two concentric circular grooves. The inner barrel and the outer barrel are embedded into the two concentric circular grooves respectively. The inner barrel, the outer barrel and the top wall of the base form a sample groove. One end of the supporting column is perpendicularly fixed to the base. The compaction barrel is arranged over the sample groove and supported by the supporting column. The compaction barrel is of a barrel structure, and the barrel wall can be embedded into the sample groove. The compaction barrel is provided with a supporting lug and is movably connected with the supporting column through the supporting lug. On the condition that sample compaction and compression operation is executed, the compaction barrel slides along the supporting column to get close to or away from the sample groove, and the barrel wall is embedded into or disengaged from the sample groove. The sample preparation device is high in structure precision, and the sample leveling and compaction operation effect is good.
Description
Technical field
The present invention relates to Geotechnical Engineering testing equipment technical field, particularly a kind of ring type sample preparation device cutting experiment for ring.
Background technology
Residual strength is as describing one of important parameter of geomaterial, characterize minimum shear resistance when reaching larger shear displacemant with slow shear rate, and once slipping plane is formed, the intensity of material is determined by its residual strength, is therefore a part important in geomaterial characteristic research to the research of residual strength.Ring shear apparatus keeps continuous print feature because it has the invariable and displacement of shear surface, obtains extensively accreditation and application in the shearing strength measuring the soil body and remaining shear parameters.
Current ring shear apparatus equipment and technology is comparatively ripe, but lacks sample preparation supporting with it and hit real mould, need experimenter experimentally demand settle a dispute by the parties concerned themselves.And there is the problem of the following aspects in existing mold; Sample mould mostly is assembly form, and mould seam crossing is not tight, causes the soil body easily to be extruded from gap in sample making course, causes soil body compactness to occur deviation; Sample loads also out-of-flatness in ring groove, causes not meeting the demands by there will be local compactness during THICKNESS CONTROL compactness, and then affects the precision of whole sample testing intensity; When adopting compacted depth to control, the sample height in ring cannot accurately be measured, make sample hit real after height be not inconsistent with test predetermined value, and then affect the compactness of whole sample.
Summary of the invention
The invention provides a kind of ring type sample preparation device cutting experiment for ring, solve classic method in prior art coarse at sample grinding tool, cause that sample flattens, the technical matters of soil body density and compaction Control aspect reliability wretched insufficiency.
For solving the problems of the technologies described above, the invention provides a kind of ring type sample preparation device cutting experiment for ring, comprising: base, inner core, urceolus, support column and compaction cylinder;
Described base is offered two concentric grooves, described inner core and described urceolus are embedded in described two concentric grooves respectively; Described inner core, described urceolus and described base roof form sample groove;
Described support column one end is vertically fixed on described base;
Described compaction cylinder is suspended in directly over described sample groove, is supported by described support column;
Wherein, described compaction cylinder is tubular construction, and barrel can embed in described sample groove;
Described compaction cylinder arranges journal stirrup, and is movably connected by described journal stirrup and described support column;
When perform examination sample compacting compress operation, described compaction cylinder slides along described support column, near or away from described sample groove, barrel embed or depart from described sample groove.
Further, described inner tube wall arranges see-through window.
Further, described see-through window arranges the sounding mark of described sample groove.
Further, described device also comprises: leveling bar and be positioned at described leveling bar front end put down plate;
Described leveling bar tail end is connected on described support column;
Wherein, the relative height of described leveling bar on described support column is adjustable;
When performing sample flattening operation in described sample groove, described leveling bar is suspended in above described sample groove, described in put down plate and be embedded in described sample groove;
When described support column rotates, described in put down plate and put down sample in sample groove, make it to be in sustained height.
Further, described support column is fixed on described base, is positioned at described sample groove circle centre position;
Wherein, described support column is embedded in described compaction cylinder lumen centers, is flexibly connected with described compaction cylinder by journal stirrup;
When perform examination sample compacting compress operation, described compaction cylinder slides along described support column, near or away from described sample groove, barrel embed or depart from described sample groove.
Further, described base is arranged a slip draw-in groove, described slip draw-in groove is positioned at the circular slide rail of described sample groove concentric;
Described support column bottom is embedded in described slip draw-in groove, can slide along described slip draw-in groove;
Wherein, when performing sample and putting down operation, described support column slides along described slip draw-in groove, and sample in sample groove put down by the plate of putting down be embedded in described sample groove, makes it to be in sustained height.
Further, in described slip draw-in groove, hole slot is set;
Wherein, bottom the internal diameter of described hole slot and described support column, external diameter matches, and described support column is embedded in described hole slot, keeps the geo-stationary of shaft and described base.
Further, the barrel top of described urceolus, is increased from upper radius gradually by lower;
Wherein, the barrel upper inner of described urceolus is in the cambered surface shifted to cylindrical shell and stretch outward.
Further, described support column upper end arranges top limit fastener, limits the lifting height of described compaction cylinder; Bottom limit fastener is set in the middle part of described support column, limits the falling head of described compaction cylinder.
Further, described compaction cylinder arranges one handle;
Wherein, when real compression sample manipulation is hit in execution, by compaction cylinder described in described handle push-and-pull.
The one or more technical schemes provided in the embodiment of the present application, at least have following technique effect or advantage:
1, the ring type sample preparation device cutting experiment for ring provided in the embodiment of the present application, adopt base, inner core, urceolus, support column and compaction cylinder to form examination sample compacting structure, corresponding precision provides greatly; Formed by support column and compaction cylinder and stable make structure toward restriking practical operation, ensure that sample can obtain stable hitting actual effect fruit; The impulsive force stable and uniform that synchronization sample is subject to, possesses good consolidation effect; On the other hand, sample groove forms the tight sample groove structure of seam by inner/outer tube and base, avoids rustic to affect the sample preparation precision of sample.
2, the ring type sample preparation device cutting experiment for ring provided in the embodiment of the present application, inner tube wall arranges see-through window, and what be convenient to observation sample hits real compressive state; Further, see-through window arranges deep identification, coordinate window to be convenient to understand sample working (machining) efficiency in real time.
3, the ring type sample preparation device cutting experiment for ring provided in the embodiment of the present application, support column action is followed by the plate of putting down of leveling bar and front end, realize putting down operation for the sample of ring specimen groove, greatly improve sample flatness, improve and hit sample density in practical operation work, the reliability and stability of the size of sample parameters such as thickness.
4, the ring type sample preparation device cutting experiment for ring provided in the embodiment of the present application, by rationally arranging the position of support column, be positioned at sample groove center, make compaction cylinder and leveling bar can follow the high-precision realization of rotation and hit reality and put down operation, ensure the effect of sample processing.
5, the ring type sample preparation device cutting experiment for ring provided in the embodiment of the present application, base arranges slip draw-in groove restriction guide support post and moves, realize putting down operation; Meanwhile, associating support can be realized by multiple support column, promote and put down the reliable and stable of operation; On the other hand, also multiple support column can be set in slip draw-in groove, common support compaction cylinder, ensure the operating stably of compaction cylinder, promote sample processing effect and reliability.
6, the ring type sample preparation device cutting experiment for ring provided in the embodiment of the present application, can fixed support post by arranging hole slot, and ensure the constant intensity of support column further, ensure hitting in real squeeze operation process, the positional precision of compaction cylinder is better all the time; Expanding sample filling entrance by arranging cambered surface epitaxial structure on urceolus, optimizing filling operation; By arranging upper and lower limit fastener on the support columns, promote the security of compaction cylinder.
Accompanying drawing explanation
The structural representation cutting the ring type sample preparation device of experiment for ring that Fig. 1 provides for the embodiment of the present invention.
Embodiment
The embodiment of the present application, by providing a kind of ring type sample preparation device cutting experiment for ring, solves classic method in prior art coarse at sample mould, causes that sample flattens, the technical matters of soil body density and compaction Control aspect reliability wretched insufficiency; Reach the technique effect promoting sample processing effect.
For solving the problems of the technologies described above, the embodiment of the present application provides the general thought of technical scheme as follows:
Cut a ring type sample preparation device for experiment for ring, comprising: base, inner core, urceolus, support column and compaction cylinder;
Described base is offered two concentric grooves, described inner core and described urceolus are embedded in described two concentric grooves respectively; Described inner core, described urceolus and described base roof form sample groove;
Described support column one end is vertically fixed on described base;
Described compaction cylinder is suspended in directly over described sample groove, is supported by described support column;
Wherein, described compaction cylinder is tubular construction, and barrel can embed in described sample groove;
Described compaction cylinder arranges journal stirrup, and is movably connected by described journal stirrup and described support column;
When perform examination sample compacting compress operation, described compaction cylinder slides along described support column, near or away from described sample groove, barrel embed or depart from described sample groove.
Can be found out by foregoing, the ring type sample preparation device cutting experiment for ring provided in the embodiment of the present application, adopt base, inner core, urceolus, support column and compaction cylinder to form examination sample compacting structure, corresponding precision provides greatly; Formed by support column and compaction cylinder and stable make structure toward restriking practical operation, ensure that sample can obtain stable hitting actual effect fruit; The impulsive force stable and uniform that synchronization sample is subject to, possesses good consolidation effect; On the other hand, sample groove forms the tight sample groove structure of seam by inner/outer tube and base, avoids rustic to affect the machining precision of sample.
In order to better understand technique scheme, below in conjunction with Figure of description and concrete embodiment, technique scheme is described in detail, the specific features being to be understood that in the embodiment of the present invention and embodiment is the detailed description to technical scheme, instead of the restriction to technical scheme, when not conflicting, the technical characteristic in the embodiment of the present application and embodiment can combine mutually.
See Fig. 1, a kind of ring type sample preparation device cutting experiment for ring that the embodiment of the present invention provides, comprising: base 1, inner core 3, urceolus 2, support column 5 and compaction cylinder 4.
Described base 1 is offered two concentric grooves, i.e. inside groove 103 and water jacket 102, described inner core 3 is embedded in described inside groove 103, and described urceolus 2 is embedded in described water jacket 102; Described inner core, described urceolus and described base roof form sample groove.
Described support column 5 one end is vertically fixed on described base 1, concrete, i.e. in the vertical direction, and support column 5 is relatively vertical with base 1 static.Described compaction cylinder 4 is suspended in directly over described sample groove, is supported by described support column 5; Thus ensure described compaction cylinder 4 can in the vertical direction just to sample groove, ensure aligning accuracy, make sample hit real excellent result.
Wherein, described compaction cylinder 4 is tubular construction, mates with ringwise sample groove; Barrel can embed in described sample groove.
Described compaction cylinder 4 arranges journal stirrup 401, and is movably connected with described support column 5 by described journal stirrup 401; Concrete, adopt ring set to be connected on support column 5, can it slides axially relatively.
When perform examination sample compacting compress operation, described compaction cylinder 4 slides along described support column 5, near or away from described sample groove, barrel embed or depart from described sample groove, to reach the object of hitting sample in real groove.
Hit truth condition for the ease of Real Time Observation sample, described inner core 3 wall arranges see-through window 301.Concrete, one or more transparent window inlayed by inner core 3 wall.
Further, hitting real thickness for the ease of understanding in real time, described see-through window 301 being arranged the sounding mark of described sample groove.
To be loaded into after in sample groove at sample, normally natural packing, height is uneven; Given this, the present embodiment provides sample to put down structure.
Concrete, what arrange leveling bar 6 and be positioned at described leveling bar 6 front end puts down plate 601; Described leveling bar 6 tail end is connected on described support column 5.
Wherein, when performing sample flattening operation in described sample groove, described leveling bar 6 is suspended in above described sample groove, described in put down plate 601 and be embedded in described sample groove.
When described support column 5 rotates, described in put down plate and move along sample groove, put down the sample in sample groove, make it to be in sustained height.
The present embodiment provides a kind of support column arrangement form: adopt and arrange support column, the compaction cylinder be socketed above support column with sample groove concentric, and the sample groove of below and support column axis overlap.Now the aligning accuracy of sample groove and compaction cylinder is very high, hits real excellent effect.
Support column can along its axis rotation, leveling bar follow support column from then rotate, rotate around described axis, thus accurate execution in described sample groove puts down operation.
Wherein, described support column is embedded in described compaction cylinder lumen centers, is flexibly connected with described compaction cylinder by journal stirrup; When perform examination sample compacting compress operation, described compaction cylinder slides along described support column, near or away from described sample groove, barrel embed or depart from described sample groove.
Further, support column can be that many bars are linked together by securing member, and the rotation axis of its entirety overlaps with the axis of sample groove.Now the structural strength of support column promotes greatly, and contraposition reliability improves greatly.
See Fig. 1, the present embodiment also provides another kind of support column arrangement form: described base 1 is arranged a slip draw-in groove 101, and described slip draw-in groove 101 is positioned at the circular slide rail concentric with described sample groove.
Described support column bottom 501 is embedded in described slip draw-in groove 101, can slide along described slip draw-in groove 101.
Concrete, compaction cylinder 4 is flexibly connected with described support column 5 by journal stirrup 401.
Wherein, when performing sample and putting down operation, described support column 5 slides along described slip draw-in groove 101, and sample in sample groove put down by the plate of putting down be embedded in described sample groove, makes it to be in sustained height.
Further, the support column 5 in slip draw-in groove 101 can be one, also can be individual multiple.
Concrete, when support column 5 is two, compaction cylinder 4 is separately fixed on described support column 5 by two journal stirrups 401.
Further, two support columns are about sample groove center axisymmetrical, and divide and be listed in sample groove two sides, now the overall center of gravity of two journal stirrups 401 is on the central axis of compaction cylinder 4, and is positioned on the central axis of sample groove, and structural stability is high.
Or support column can also be three or more, according to the experiment needs of reality; Wherein, ensure that the center of compaction cylinder and the integral central of support column are positioned on the axis of sample groove.
Further, in described slip draw-in groove 101, a hole slot 104 is set; Wherein, the internal diameter of described hole slot 104 mates with existing bottom described support column 5 radius, described support column 5 and then be embedded in described hole slot 104, keep the geo-stationary of shaft and described base 1, the constant intensity of strict lifting support column 5, the impact of vibrations on positioning precision when ensureing compaction cylinder 4 action drops to minimum.
The barrel top of described urceolus 2, is increased from upper radius gradually by lower; Wherein, the barrel upper inner of described urceolus 2, in the cambered surface 201 shifted to cylindrical shell and stretch, is convenient to sample filling outward.
Described support column 5 upper end arranges top limit fastener 503, limits the lifting height of described compaction cylinder 4; In the middle part of described support column 5, bottom limit fastener 502 is set, limits the falling head of described compaction cylinder 4.
Described compaction cylinder 4 arranges one handle 402; Wherein, when real compression sample manipulation is hit in execution, by compaction cylinder 4 described in the push-and-pull of described handle 402.
The one or more technical schemes provided in the embodiment of the present application, at least have following technique effect or advantage:
1, the ring type sample preparation device cutting experiment for ring provided in the embodiment of the present application, adopt base, inner core, urceolus, support column and compaction cylinder to form examination sample compacting structure, corresponding precision provides greatly; Formed by support column and compaction cylinder and stable make structure toward restriking practical operation, ensure that sample can obtain stable hitting actual effect fruit; The impulsive force stable and uniform that synchronization sample is subject to, possesses good consolidation effect; On the other hand, sample groove forms the tight sample groove structure of seam by inner/outer tube and base, avoids rustic to affect the machining precision of sample.
2, the ring type sample preparation device cutting experiment for ring provided in the embodiment of the present application, inner tube wall arranges see-through window, and what be convenient to observation sample hits real compressive state; Further, see-through window arranges deep identification, coordinate window to be convenient to understand sample working (machining) efficiency in real time.
3, the ring type sample preparation device cutting experiment for ring provided in the embodiment of the present application, support column action is followed by the plate of putting down of leveling bar and front end, realize putting down operation for the sample of ring specimen groove, greatly improve sample flatness, be convenient to hit sample density in practical operation work, the reliability and stability of the size of sample parameters such as thickness.
4, the ring type sample preparation device cutting experiment for ring provided in the embodiment of the present application, by rationally arranging the position of support column, be positioned at sample groove center, make compaction cylinder and leveling bar can follow the high-precision realization of rotation and hit reality and put down operation, ensure the effect of sample processing.
5, the ring type sample preparation device cutting experiment for ring provided in the embodiment of the present application, base arranges slip draw-in groove restriction guide support post and moves, realize putting down operation; Meanwhile, associating support can be realized by multiple support column, promote and put down the reliable and stable of operation; On the other hand, also multiple support column can be set in slip draw-in groove, common support compaction cylinder, ensure the operating stably of compaction cylinder, promote sample processing effect and reliability.
6, the ring type sample preparation device cutting experiment for ring provided in the embodiment of the present application, can fixed support post by arranging hole slot, and ensure the constant intensity of support column further, ensure hitting in real squeeze operation process, the positional precision of compaction cylinder is better all the time; Expanding sample filling entrance by arranging cambered surface epitaxial structure on urceolus, optimizing filling operation; By arranging upper and lower limit fastener on the support columns, promote the security of compaction cylinder.
It should be noted last that, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to example to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (10)
1. cut a ring type sample preparation device for experiment for ring, it is characterized in that, comprising: base, inner core, urceolus, support column and compaction cylinder;
Described base is offered two concentric grooves, described inner core and described urceolus are embedded in described two concentric grooves respectively; Described inner core, described urceolus and described base roof form sample groove;
Described support column one end is vertically fixed on described base;
Described compaction cylinder is suspended in directly over described sample groove, is supported by described support column;
Wherein, described compaction cylinder is tubular construction, and barrel can embed in described sample groove;
Described compaction cylinder arranges journal stirrup, and is movably connected by described journal stirrup and described support column;
When perform examination sample compacting compress operation, described compaction cylinder slides along described support column, near or away from described sample groove, barrel embed or depart from described sample groove.
2. the ring type sample preparation device cutting experiment for ring as claimed in claim 1, is characterized in that: described inner tube wall arranges see-through window.
3. the ring type sample preparation device cutting experiment for ring as claimed in claim 2, is characterized in that: described see-through window arranges the sounding mark of described sample groove.
4. the as claimed in claim 3 ring type sample preparation device cutting experiment for ring, is characterized in that, also comprise: leveling bar and be positioned at described leveling bar front end put down plate;
Described leveling bar tail end is connected on described support column;
Wherein, the relative height of described leveling bar on described support column is adjustable;
When performing sample flattening operation in described sample groove, described leveling bar is suspended in above described sample groove, described in put down plate and be embedded in described sample groove;
When described support column rotates, described in put down plate and put down sample in sample groove, make it to be in sustained height.
5. the ring type sample preparation device cutting experiment for ring as claimed in claim 4, is characterized in that: described support column is fixed on described base, is positioned at described sample groove circle centre position;
Wherein, described support column is embedded in described compaction cylinder lumen centers, is flexibly connected with described compaction cylinder by journal stirrup;
When perform examination sample compacting compress operation, described compaction cylinder slides along described support column, near or away from described sample groove, barrel embed or depart from described sample groove.
6. the ring type sample preparation device cutting experiment for ring as claimed in claim 4, it is characterized in that: described base is arranged a slip draw-in groove, described slip draw-in groove is positioned at the circular slide rail of described sample groove concentric;
Described support column bottom is embedded in described slip draw-in groove, can slide along described slip draw-in groove;
Wherein, when performing sample and putting down operation, described support column slides along described slip draw-in groove, and sample in sample groove put down by the plate of putting down be embedded in described sample groove, makes it to be in sustained height.
7. the ring type sample preparation device cutting experiment for ring as claimed in claim 6, is characterized in that: arrange hole slot in described slip draw-in groove;
Wherein, bottom the internal diameter of described hole slot and described support column, external diameter matches, and described support column is embedded in described hole slot, keeps the geo-stationary of shaft and described base.
8. the ring type sample preparation device cutting experiment for ring as described in any one of claim 1 ~ 7, is characterized in that: the barrel top of described urceolus, is increased gradually by lower from upper radius;
Wherein, the barrel upper inner of described urceolus is in the cambered surface shifted to cylindrical shell and stretch outward.
9. the ring type sample preparation device cutting experiment for ring as described in any one of claim 1 ~ 8, is characterized in that: described support column upper end arranges top limit fastener, limits the lifting height of described compaction cylinder; Bottom limit fastener is set in the middle part of described support column, limits the falling head of described compaction cylinder.
10. the ring type sample preparation device cutting experiment for ring as claimed in claim 9, is characterized in that: described compaction cylinder arranges one handle;
Wherein, when real compression sample manipulation is hit in execution, by compaction cylinder described in described handle push-and-pull.
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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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| 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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| CN107515146A (en) * | 2017-09-22 | 2017-12-26 | 中国科学院武汉岩土力学研究所 | A kind of geotechnological ring shear test annular remolded soil sampling device and method for making sample |
| CN111562152A (en) * | 2020-05-19 | 2020-08-21 | 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 |
| CN114113542A (en) * | 2021-11-19 | 2022-03-01 | 湖南科技学院 | Rock soil and underground engineering model test traffic dynamic load simulation device |
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| CN107515146A (en) * | 2017-09-22 | 2017-12-26 | 中国科学院武汉岩土力学研究所 | A kind of geotechnological ring shear test annular remolded soil sampling device and method for making sample |
| 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 |
| CN111562152A (en) * | 2020-05-19 | 2020-08-21 | 河北建筑工程学院 | Integrated soil body module manufacturing device |
| 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 |
| CN114113542A (en) * | 2021-11-19 | 2022-03-01 | 湖南科技学院 | Rock soil and underground engineering model test traffic dynamic load simulation device |
| 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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