CN109100205A - A kind of mechanical models for rocks sample standard specimen preparation facilities and application method - Google Patents
A kind of mechanical models for rocks sample standard specimen preparation facilities and application method Download PDFInfo
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- CN109100205A CN109100205A CN201810923241.1A CN201810923241A CN109100205A CN 109100205 A CN109100205 A CN 109100205A CN 201810923241 A CN201810923241 A CN 201810923241A CN 109100205 A CN109100205 A CN 109100205A
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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
- G01N1/36—Embedding or analogous mounting of samples
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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
- G01N1/36—Embedding or analogous mounting of samples
- G01N2001/366—Moulds; Demoulding
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- Life Sciences & Earth Sciences (AREA)
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Abstract
The present invention discloses a kind of mechanical models for rocks sample standard specimen preparation facilities and application method, test material preparation device includes above covering movable plate, card slot and mold, card slot, which is fixed at, to be covered on movable plate, the groove to match with mold shape is equipped in card slot, mold is inserted into the groove on card slot.The present invention prepares the standard mechanics test specimen of the plurality of specifications such as 50 × 100mm in which can use analog material direct convenience, does not need to drill through by drilling machine；But also horizontal layer and inclination stratiform proof force test specimen can be prepared.
Description
Technical field
The present invention discloses a kind of model test piece preparation facilities, especially a kind of mechanical models for rocks sample standard specimen preparation
Device and application method belong to rock mechanics and engineering technical field.
Background technique
In rock mechanics and engineering field, rock mechanics experiment is very basic and important a research and application, is used
To understand the mechanical property of rock or Rock And Soil.In numerous indoor and live mechanical tests, the uniaxial pressure of standard mechanics test specimen
Contracting test is very important two with triaxial compression test, can determine rock (body) compression strength, elasticity modulus, Poisson's ratio
Etc. important mechanics parameter, thus standard mechanics test specimen prepare it is particularly important.For rock (soil) layer of same layer position, adopt at the scene
It is feasible for collecting natural sample, but for the sample comprising two or more rock (soil) layers, collection in worksite difficulty is larger, and sample holds
It is easily destroyed in drilling operation, it is therefore desirable to prepare model sample using analog material indoors.
Currently, the patent about rock sample preparation facilities has, such as Publication No. CN106018021A's is special
A kind of device for making and method for different size rock samples of sharp Shen Qing Publication, true rock sample can be carried out cutting plus
Work；A kind of production mold of processable multiple standards rock sample of the patent application publication of Publication No. CN206906099U,
The cube specimen of multiple and different sizes can be processed by free switching using same mold；Publication No. CN107560911A
Patent application propose a kind of production rock sample mold, the rock sample containing hole can be prepared；Publication No.
The patent application of CN102620967A proposes a kind of rock-class test piece mould for field of rock mechanics, is able to carry out change size
The compacting of analog material bulk test specimen.Above-mentioned patent is different for object, including the processing to natural rock sample, cube massive rock
The preparation of sample, the preparation of the sample containing hole, but it is unable to directly prepare 50 × 100mm specification stratified model sample.
Summary of the invention
It cannot be directly used in for rock sample preparation facilities in the prior art mentioned above and prepare stratified model
The shortcomings that sample, the present invention provide a kind of mechanical models for rocks sample standard specimen preparation facilities and application method, use examination
The structure of original mold tool cooperation regulating device, can conveniently and efficiently prepare mechanical models for rocks sample standard specimen.
The technical solution used to solve the technical problems of the present invention is that: a kind of mechanical models for rocks sample standard specimen preparation
Device, test material preparation device include above covering movable plate, card slot and mold, and card slot, which is fixed at, to be covered on movable plate, in card slot
Equipped with the groove to match with mold shape, mold is inserted into the groove on card slot.
A kind of application method of mechanical models for rocks sample standard specimen preparation facilities, it is characterized in that: the method packet
Include following step:
Step A, movable plate being covered by to be assembled on upper plate, the angle that movable plate and horizontal plane are covered in adjustment is placed, and
Slide bar is fixed by clamping screw；
Step B, card slot is fixed by bolts to and is covered above movable plate, then sampling die is placed in card slot, and
Mold upper end is fixed with buckle；
Step C, two kinds of rocks analog material A and analog material B are prepared, before analog material pours, first in mold
Smear lubricant in side；
Step D, analog material A is prepared into the preceding state of solidification, be then placed in sampling die, it is thick that thickness reaches setting
Degree；
Step E, entire sample preparation device is placed on concrete vibrating stand and vibrates certain time, be then allowed to stand and allow materials A
Reach preliminary initial set:
Step F, the analog material B prepared is directly placed above materials A, thickness reaches setting thickness；
Step G, entire sample preparation device is placed on concrete vibrating stand, is made in material B by the way of intermittent oscillation
Bubble overflow as far as possible；
Step H, after the completion of materials A, B are poured, water conservation stands 12 hours, and analog sample is made to reach complete initial set；
Step I, card slot is removed from upper cladding plate, unlocks upper end buckle later, opens mold, the examination after taking out initial set
Certain time is maintained, to reach predetermined strength by sample on demand by the concrete curing chamber that sample is put into constant temperature and humidity；
Step J, the rocks sample conserved is fixed on cutting rack, the extra part in sample upper end is cut off,
If there are out-of-flatness situation in sample bottom surface and side, polished flat with sand paper.
The technical scheme adopted by the invention to solve the technical problem further comprises:
Covering on described has threaded hole on the upper surface of movable plate, four angles of card slot offer a through-hole respectively, passes through
Card slot is stably fixed on by bolt to be covered on movable plate.
For the card slot using free-standing card slot, a card slot is interior to insert a mold, above covers and is provided with two on movable plate
A above card slot, multiple card slots are distributed in matrix form.
The mold is made of transparent organic glass.
The mold is spliced using two panels semicircular structure, and two panels semicircular structure seam crossing is equipped with step-like sting
Close structure.
The die top is fixedly installed buckle, and buckle uses two semicircular structures, and two semicircle buckles are logical
Bolt is crossed to be fixed together.
It is covered on described and is provided with lower plate below movable plate, above covered movable plate side and be connected to by hinge and lower plate
Together, it above covers and slide bar is installed on movable plate bottom surface, slide bar one end is mounted on by shaft to be covered on movable plate bottom surface, and slide bar is another
Sliding block is installed on one end, sliding slot is offered on lower plate or is provided with sliding rail, sliding block is arranged in sliding slot or is arranged in cunning
On rail, sliding block is enable to slidably reciprocate along sliding slot or sliding rail.
The sliding slot cross section is in the shape of a " convex ", swallow-tail form or rectangular.
There are two the sliding slot is set, two sliding slots are parallel to each other.
Clamping screw is fixed on the sliding block.
The beneficial effects of the present invention are: the present invention prepares 50 × 100mm etc. with can use analog material direct convenience
The standard mechanics test specimen of plurality of specifications, does not need to drill through by drilling machine；But also horizontal layer and inclination stratiform mark can be prepared
Quasi- mechanics test specimen.
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
Detailed description of the invention
Fig. 1 is head-up structural schematic diagram of the invention.
Fig. 2 is that lower plate long side of the invention looks squarely structural schematic diagram.
Fig. 3 is the overlooking structure diagram that movable plate is covered on of the invention.
Fig. 4 is the mold schematic diagram of the invention with card slot and buckle.
Fig. 5 is the card slot schematic diagram for fixing mould of the invention.
Fig. 6 is mold schematic perspective view of the invention.
Fig. 7 is buckle schematic perspective view of the invention.
In figure, 1- lower plate, 2- hinge covers movable plate, 4- card slot, 5- mold, 6- buckle, 7- sliding slot, 8- slide bar on 3-.
Specific embodiment
The present embodiment is the preferred embodiment for the present invention, other its all principles and basic structure are identical or close as the present embodiment
As, within that scope of the present invention.
The present invention prepares the standard mechanics test specimen of model sample mainly for simplicity, incorporated by reference to referring to attached drawing 1 to attached drawing 7,
The invention mainly comprises movable plate 3, card slot 4 and mold 5 is above covered, card slot 4, which is fixed at, to be covered on movable plate 3, is set in card slot 4
There is the groove to match with 5 shape of mold, mold 5 is inserted into the groove on card slot 4.In the present embodiment, above covering movable plate 3 is
The steel plate of long 500mm, width 275mm, thickness 20mm, when it is implemented, on cover movable plate 3 and can select other rulers according to the actual situation
Very little, above covering has threaded hole (not marking in figure) on the upper surface of movable plate 3, is used for fixed card slot 4, and card slot 4 is bolted
It is mounted on and covers on movable plate 3, in the present embodiment, for card slot 4 using free-standing card slot, i.e., a card slot 4 is interior only inserts a mould
Tool 5, above covers and is provided with multiple card slots 4 on movable plate 3, and multiple card slots 4 are in matrix form distribution, when it is implemented, card slot 4 can also be with
Setting is integrated, i.e., offers multiple grooves on integrated card slot 4.In the present embodiment, card slot 4 is made of organic glass,
Having a size of long 80mm, width 80mm, high 60mm, centre is the hole of diameter 60mm, for placing sampling die 5,4 four angles of card slot
The through-hole (can be unthreaded hole or threaded hole) that a diameter is 5mm is offered respectively, card slot can be stably fixed on by the through-hole
On cover on movable plate 3.
In the present embodiment, mold 5 is also made of transparent organic glass, and main purpose is multiple in sample making course in order to facilitate observation of
Close whether roch layer interface changes.In the present embodiment, mold 5 having a size of interior diameter 50mm, overall diameter 60mm, wall thickness 5mm's
The cylinder of upper and lower opening, 5 length of mold can be specifically arranged according to actual needs, and in the present embodiment, 5 length of mold is 200mm, tool
When body is implemented, mold 5 can be designed according to actual needs in other sizes.In the present embodiment, mold 5 uses two panels semicircular structure
It is spliced, two panels semicircular structure seam crossing is equipped with step-like occlusion structure, i.e., distinguishes in two panels semicircular structure seam crossing
It is provided with scrap (bridge), the scrap (bridge) of side is fixed inside, and the scrap (bridge) fixed setting of the other side on the outside, passes through the scrap (bridge) of two sides
Occlusion structure can be just cooperatively formed, material is poured when preventing from pouring from seam crossing outflow, leakage, while cope and drag pattern can be prevented
Relative displacement occurs for tool, and is designed using two-piece type, is also more easier to demould.
In the present embodiment, it is fixedly installed buckle 6 at the top of mold 5, can be fixed at the top of 6 pairs of molds 5 by buckling,
In the present embodiment, buckle 6 is made of aluminum alloy material, buckles 6 thickness about 2mm, and 6 width of buckle can be set according to actual needs
Fixed, in the present embodiment, 6 width of buckle are 15mm, in the present embodiment, buckle 6 and use two semicircles (or for U-shaped) structure
Design forms buckle 6, is capable of fixing mold 5 after two panels semicircular structure split, in the present embodiment, two semicircle buckles 6
It is bolted on together.
In the present embodiment, lower plate 1 is provided with below movable plate 3 in upper cover, above cover 3 side of movable plate by hinge 2 with
Lower plate 1 links together, and can make to cover movable plate 3 along hinge 2 relative to the rotation of lower plate 1, hinge 2 is for fixed bottom
Plate 1 and movable plate 3 is above covered, be bolted to the upper surface of lower plate 1 respectively and above cover the lower surface of movable plate 3, hinge 2 connects
It connects position to be located at away from lower plate long side 120mm, in the present embodiment, door hinge formula structure, rotary shaft structure or conjunction is can be used in hinge 2
Page structure can also use other hinge arrangements with rotation function.In the present embodiment, lower plate 1 is long 600mm, width
The steel plate of 500mm, thickness 20mm, upper surface of steel plate have threaded hole, for covering the hinge 2 of movable plate in fixation, when it is implemented, under
Bottom plate 1 can also select other sizes according to actual needs.
On cover slide bar 8 be installed on 3 bottom surface of movable plate, 8 one end of slide bar is mounted on by shaft covers 3 bottom surface of movable plate
On, sliding block is installed on 8 other end of slide bar, sliding slot 7 is offered on lower plate 1 or is provided with sliding rail, sliding block is arranged in sliding slot 7
Or setting on the slide rail, make sliding block that can slidably reciprocate along sliding slot 7 or sliding rail, in the present embodiment, by taking sliding groove structure as an example into
Row illustrates.Sliding slot 7 is located on lower plate 1, long 380mm, width 10mm, depth 10mm, sliding slot bottom have about 3mm long to both sides
The sulculus of extension, for sliding block insertion the inside after slide, sliding slot cross section is in the shape of a " convex ", can anti-limited slip block therefrom deviate from, have
When body is implemented, 7 cross section of sliding slot can also use swallow-tail form or rectangular, in the present embodiment, set that there are two the cunnings that are parallel to each other altogether
Slot 7, and sliding slot 7 is parallel to 1 width direction of lower plate, the start position of sliding slot 7 is located at away from 1 long side 220mm of lower plate, terminal
Position is located at lower plate edge, and in the present embodiment, slide bar 8 is made of aluminum alloy material, and long 174mm, which, which can allow, covers
The tilt angle of movable plate 3 is up to 60 °, and 8 both ends of slide bar are installed on the bottom surface for covering movable plate 3 with hinge or shaft respectively
On the sliding block in sliding slot 7, by sliding slider, the tilt angle for covering movable plate 3 is adjusted, to make the examination of different angle
The size of part, above-mentioned sliding slot 7 and slide bar 8 is optimum size of the present invention, when it is implemented, can choose according to actual needs specific
Size.In the present embodiment, it is fixed with clamping screw on sliding block, sliding block can be locked by clamping screw, to maintain it
It is constant in fixed position.
In above-described embodiment, to be illustrated for the structure of two sliding slots 7 and two slide bars 8, when it is implemented, can also
To use one or more.
The rock standard specimen of overlap type up and down that contact surface has 30 ° of inclination angles is prepared using the present invention, steps are as follows:
Step A, above-mentioned test material preparation device is assembled, movable plate 3 is covered in adjustment and is put horizontal by 30 ° of angles
It sets, and is fixed slide bar 8 by clamping screw；
Step B, card slot 4 is fixed by bolts to and is covered above movable plate 3, sampling die 5 is then placed in card slot 4
It is interior, and fixed mold upper end with buckle 6；
Step C, two kinds of rocks analog material A and analog material B are prepared, before analog material pours, first in mold
Vaseline is smeared in side, and convenient for demoulding, common process is can be used in the preparation of analog material A and analog material B；
Step D, analog material A is prepared into the preceding state of solidification, be then placed in sampling die 5, it is thick that thickness reaches setting
It spends, in the present embodiment, with 50mm, (since mold 5 is in heeling condition, thickness is with cylindrical die center line for reference herein
The thickness of scale) for；
Step E, entire sample preparation device is placed on oscillation certain time (generally 5~8 minutes) on concrete vibrating stand,
It overflows the bubble in sample as far as possible, is then allowed to stand 30~60 minutes and materials A is allowed to reach preliminary initial set:
Step F, the analog material B prepared is directly placed above materials A, thickness reaches setting thickness, this implementation
In example, by taking 51.5mm as an example, measurement method is identical as step D；
Step G, entire sample preparation device is placed on concrete vibrating stand, is made in material B by the way of intermittent oscillation
Bubble overflow as far as possible, in the present embodiment, intermittent oscillation refers to oscillation a few minutes (usually 2~5 minutes), stops 2-3 point
Then clock vibrates a few minutes (usually 2~5 minutes) again, then stops 2-3 minutes, about recycle 2-3 times.In oscillation
In the process, the case where two kinds of material contacting surfaces being paid close attention to by transparent organic glass, to prevent interface to be mixed, such as
Fruit has the tendency that generation intermixing, then reduces amplitude and the time of vibration；
Step H, after the completion of materials A, B are poured, (water conservation refers to that sample is constantly in the state being immersed in water, and guarantees for water conservation
Sample is unable to the mode that water shortage is cracked, generallys use regular spray or impregnates) 12 hours are stood, reach analog sample
Full initial set；
Step I, then card slot 4 is removed from upper cladding plate 3, unlocks upper end buckle 6 later, open mold 5, takes out initial set
Sample afterwards, the concrete curing chamber that sample is put into constant temperature and humidity is maintained certain time on demand (service time is usually 7~
28 days, the concrete curing standard time was 28 days, if requiring rapid prototyping, curing time is most short to can be compressed to 7 days or 14
It), to reach predetermined strength；
Step J, the rocks sample conserved is fixed on cutting rack, the extra part in sample upper end is cut off,
It if there are out-of-flatness situation in sample bottom surface and side, can slightly be polished flat with sand paper, so far, obtain level just as about 30 °
Overlap type rocks 50 × 100mm specification standards mechanics test specimen.
The present invention prepares the standard mechanics examination of the plurality of specifications such as 50 × 100mm in which can use analog material direct convenience
Part does not need to drill through by drilling machine；But also horizontal layer and inclination stratiform proof force test specimen can be prepared.
Claims (10)
1. a kind of mechanical models for rocks sample standard specimen preparation facilities, it is characterized in that: the test material preparation device includes upper
Movable plate, card slot and mold are covered, card slot, which is fixed at, to be covered on movable plate, recessed equipped with matching with mold shape in card slot
Slot, mold are inserted into the groove on card slot.
2. mechanical models for rocks sample standard specimen preparation facilities according to claim 1, it is characterized in that: being covered on described
There is threaded hole on the upper surface of movable plate, four angles of card slot offer a through-hole respectively, stablize card slot by bolt and fix
It is covered on movable plate in upper.
3. mechanical models for rocks sample standard specimen preparation facilities according to claim 1, it is characterized in that: the card slot
Using free-standing card slot, a mold is inserted in a card slot, above covers and is provided with more than two card slots on movable plate, multiple cards
Slot is distributed in matrix form.
4. mechanical models for rocks sample standard specimen preparation facilities according to claim 1, it is characterized in that: the mold
It is made of transparent organic glass.
5. mechanical models for rocks sample standard specimen preparation facilities according to claim 1, it is characterized in that: the mold
It is spliced using two panels semicircular structure, two panels semicircular structure seam crossing is equipped with step-like occlusion structure.
6. mechanical models for rocks sample standard specimen preparation facilities according to claim 1, it is characterized in that: the mold
Top is fixedly installed buckle, and buckle uses two semicircular structures, and two semicircles snap through bolt and are fixed together.
7. mechanical models for rocks sample standard specimen preparation facilities according to claim 1, it is characterized in that: being covered on described
It is provided with lower plate below movable plate, movable plate side is above covered and is linked together by hinge and lower plate, above cover movable plate bottom
Slide bar is installed on face, slide bar one end is mounted on by shaft to be covered on movable plate bottom surface, sliding block is installed on the slide bar other end,
Sliding slot is offered on lower plate or is provided with sliding rail, and sliding block is arranged in sliding slot or is arranged on the slide rail, enables sliding block edge
Sliding slot or sliding rail slidably reciprocate, clamping screw is fixed on sliding block.
8. mechanical models for rocks sample standard specimen preparation facilities according to claim 7, it is characterized in that: the sliding slot
Cross section is in the shape of a " convex ", swallow-tail form or rectangular.
9. mechanical models for rocks sample standard specimen preparation facilities according to claim 7, it is characterized in that: the sliding slot
If there are two, two sliding slots are parallel to each other.
10. a kind of application method of mechanical models for rocks sample standard specimen preparation facilities, it is characterized in that: the method includes
Following step:
Step A, it covers movable plate by to be assembled on upper plate, the angle that movable plate and horizontal plane are covered in adjustment is placed, and is passed through
Clamping screw fixes slide bar；
Step B, card slot is fixed by bolts to and is covered above movable plate, then sampling die is placed in card slot, and with card
Button fixes mold upper end；
Step C, two kinds of rocks analog material A and analog material B are prepared, before analog material pours, are first applied in die inside
Smear lubricant；
Step D, analog material A is prepared into the preceding state of solidification, be then placed in sampling die, thickness reaches setting thickness；
Step E, entire sample preparation device is placed on concrete vibrating stand and vibrates certain time, be then allowed to stand and materials A is allowed to reach
Preliminary initial set:
Step F, the analog material B prepared is directly placed above materials A, thickness reaches setting thickness；
Step G, entire sample preparation device is placed on concrete vibrating stand, the gas in material B is made by the way of intermittent oscillation
Bubble overflows as far as possible；
Step H, after the completion of materials A, B are poured, water conservation stands 12 hours, and analog sample is made to reach complete initial set；
Step I, card slot is removed from upper cladding plate, unlocks upper end buckle later, opens mold, the sample after taking out initial set will
Certain time is maintained on demand by the concrete curing chamber that sample is put into constant temperature and humidity, to reach predetermined strength；
Step J, the rocks sample conserved is fixed on cutting rack, the extra part in sample upper end is cut off, sample
If there are out-of-flatness situation in bottom surface and side, polished flat with sand paper.
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| CN110208065A (en) * | 2019-06-28 | 2019-09-06 | 长沙理工大学 | The rocks sample integration system of batch control compactness is for device and method |
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| CN110208065A (en) * | 2019-06-28 | 2019-09-06 | 长沙理工大学 | The rocks sample integration system of batch control compactness is for device and method |
| CN110208065B (en) * | 2019-06-28 | 2021-07-16 | 长沙理工大学 | Device and method for integrated preparation of rock-like samples for batch control of compaction degree |
| CN110567770A (en) * | 2019-09-09 | 2019-12-13 | 青岛科技大学 | A kind of rapid prototyping equipment and prototyping method of standard similar material test pieces |
| CN110967235A (en) * | 2020-02-22 | 2020-04-07 | 山西大学 | A kind of production device and production method of artificial standard layered rock sample |
| CN111307509A (en) * | 2020-04-15 | 2020-06-19 | 河海大学 | A kind of red bed soft rock undisturbed sample sampling device and sampling method |
| CN112504801A (en) * | 2020-11-24 | 2021-03-16 | 河南理工大学 | Device and method for rapidly preparing variable-section layered rock-like material |
| CN113281142A (en) * | 2021-05-24 | 2021-08-20 | 东北大学 | Deep rock similar material true triaxial sample manufacturing mold and forming method |
| CN115219312A (en) * | 2021-05-31 | 2022-10-21 | 东华理工大学 | Multi-diameter cylindrical joint rock mechanical model sample preparation device and method |
| CN113933139A (en) * | 2021-09-29 | 2022-01-14 | 中国地质大学（武汉） | Sample preparation mold and sample preparation method for rock similar material |
| CN113933139B (en) * | 2021-09-29 | 2024-03-26 | 中国地质大学（武汉） | Rock similar material sample preparation mold and sample preparation method |
| CN114018679A (en) * | 2021-10-19 | 2022-02-08 | 深圳市卓宝科技股份有限公司 | Sample preparation method for non-cured coiled material |
| CN114018679B (en) * | 2021-10-19 | 2024-03-26 | 深圳市卓宝科技股份有限公司 | Non-solidified coiled material sample preparation method |
| CN118392611A (en) * | 2024-06-28 | 2024-07-26 | 华东交通大学 | A method for preparing a simulated directional rock-soil mixture |
| CN118392611B (en) * | 2024-06-28 | 2024-10-01 | 华东交通大学 | Preparation method of simulated directional rock, soil and stone mixture |
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