CN110470597A - A kind of obturation-rock sample processing method and adhesive property test device - Google Patents
A kind of obturation-rock sample processing method and adhesive property test device Download PDFInfo
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- CN110470597A CN110470597A CN201910911183.5A CN201910911183A CN110470597A CN 110470597 A CN110470597 A CN 110470597A CN 201910911183 A CN201910911183 A CN 201910911183A CN 110470597 A CN110470597 A CN 110470597A
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- sample
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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
- G01N19/00—Investigating materials by mechanical methods
- G01N19/04—Measuring adhesive force between materials, e.g. of sealing tape, of coating
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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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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention relates to a kind of obturation-rock sample processing method and adhesive property test devices, belong to rock-soil material the field of test technology.The invention is mainly concerned with obturation-processing method of rock test sample and the measuring method of interface binding intensity.Wherein, adhesive property test device is made of servo hydraulic system, loading system and data collection system.Servo hydraulic system can be implemented as loading system and provide quantifiable power source；Loading system realizes obturation-rock test sample adhesive property test function；Data collection system realizes the transmission and recording function of data during test.The invention device realizes obturation-rock sample processing and its test of interfacial bond property.Sample processing method is simple, and test device is convenient, reliable, and inhomogeneous deformation influences test result during not conserved by obturation.
Description
Technical field
The invention belongs to ground the field of test technology, in particular to a kind of obturation-rock sample processing method and bonding
Performance testing device.
Background technique
With the continuous development that metal mine is exploited, gradually exploited by open air trestle, superficial part turns deep mining.For sound
The basic demand of national environmental protection is answered, major metal mine gradually adopts filling mining method to exploit instead of previous emission type.
Fill-type exploitation is broadly divided into waste fill and tailing cemented filling two major classes.It is useless that fill-type exploitation not only solves metal mine
The accumulation problem of gurry, and solve Goaf Area potential hazard caused by underground mining work environment.
For tailing cemented filling, obturation mainly includes that tailings, water, cement and additive or cement replacement are equal
It is even to mix.Using its own gravity or be pumped to Goaf Area.Obturation after filling is continuous with cement
Aquation, obturation gradually generate intensity.In previous research, often the excessive intensity for having paid close attention to obturation itself, is but neglected
Depending on the adhesion strength of itself and palisades interface.The stability of underground goaf filling body is equally played in the presence of its adhesion strength
Important role.On the other hand, studies have shown that making obturation just because of adhesion strength existing between obturation and palisades
Therein generates arching.The presence of arching makes the vertical stress of the certain point inside obturation be significantly less than it certainly
The weight stress of body.To obturation cement consumption is reduced, there are important meanings for this.But since adhesion strength in situ is difficult
It measures, the size of its adhesion strength can only be obtained by the method for indoor sample.Therefore, indoor obturation-rock sample processing
And adhesive property test just highlights its importance.
Summary of the invention
For the requirement of existing background technique, the present invention provides a kind of obturation-rock sample processing method and caking property
Energy test device, it can be perfectly suitable for the processing of obturation-rock sample and its test of interfacial adhesion, test
Device is easy to operate, and usability is strong, and obturation-rock sample interfacial adhesion parameter measurement function may be implemented.Specific skill
Art scheme is as follows:
A kind of obturation-rock sample processing method, including sample, the sample are the obturation and semicircle of semi- cylindrical
The cylinder that the rock of column type is integrated；
Sample is arranged between the upper grip of loading system and lower collet, and the face of upper grip and lower collet and sample contacts is
Semicircle, and it is corresponding with the obturation end face of sample and rock end face；
The loading system is driven by servo hydraulic system；
Further include data collection system, the data collection system include the vertical displacement sensor in position, cut swollen displacement sensor,
Data collector, computer；Wherein, vertical displacement sensor is connect with pressure head and data collecting instrument, and vertical displacement sensor can be
The change in displacement stroke of pressure head and sample is recorded in loading procedure；Swollen displacement sensor is cut to connect with sample and data collecting instrument,
Convenient for cutting the variation of swollen displacement in record sample loading procedure；Data collecting instrument is connect with computer, and computer can be to data collecting instrument
The result of record carries out export and the analysis of further data.
The sample processing method: being open on the uncovered formwork for cylindrical columns of soft-plastic material production along short transverse first,
Form a closeable notch；Mold is in use blocked notch with glue rifle, guarantees that sealing part is impermeable, in uncovered
Formwork for cylindrical columns inner surface smears machinery oil, is convenient for demoulding；Semicolumn rock sample is first put into uncovered formwork for cylindrical columns along axial direction
Then uniform obturation slurry is poured the other side into uncovered formwork for cylindrical columns by side, become a complete circle
Cylinder；Uncovered formwork for cylindrical columns is covered with lid, lid and uncovered formwork for cylindrical columns are sealed processing with sealant tape；
When demoulding, sealant tape and lid are first torn open, the sealant on notch is then removed, using the deformation of notch, by nothing
Lid formwork for cylindrical columns is separated with sample；Before the test, differential settlement difference part is handled as plane.
The present invention further discloses a kind of adhesive property test devices for realizing the method, including servo-hydraulic system
System, loading system and data collection system；The loading system includes main frame, secondary frame, seaming chuck, push-down head, card slot；
Time frame is arranged in the top of the main frame, and seaming chuck directed downwardly is arranged in the upper end of secondary frame, and the lower end setting of secondary frame is upward
Push-down head；The seaming chuck and push-down head are corresponding with the filling body portion of sample and rock part respectively；The push-down head
The piston rod of the oil cylinder of lower section and servo hydraulic system connects；The servo hydraulic system further includes control valve, and the oil cylinder is logical
Control valve is crossed to connect with hydraulic press；The data collection system includes the vertical displacement sensor in position, cut swollen displacement sensor, data are adopted
Storage, computer；Wherein, vertical displacement sensor is connect with push-down head and data collecting instrument, and vertical displacement sensor can load
The change in displacement stroke of pressure head and sample is recorded in the process；It cuts swollen displacement sensor to connect with sample and data collecting instrument, be convenient for
The variation of swollen displacement is cut in record sample loading procedure；Data collecting instrument is connect with computer, and computer can record data collecting instrument
Result carry out export and further data analysis.
The filling body portion of the sample is to be arranged in one in the card slot of its form fit, prevents obturation from testing
Collapse in the process, and for guarantee to cut swollen displacement sensor to data be sample it is whole cut swollen displacement, rather than certain
The shift value of a bit.
The present invention realizes obturation-rock sample processing and its test of interfacial bond property, sample processing method letter
Single, test device is convenient, reliable, and inhomogeneous deformation influences test result during not conserved by obturation.
Detailed description of the invention
Fig. 1 is unitary mould schematic diagram of the invention；
Fig. 2 is the schematic diagram of present invention bonding force test device；
Fig. 3 is sample schematic diagram of the invention；
Wherein, 1, uncovered formwork for cylindrical columns, 2, lid, 3, sealant tape, 4, notch, 5, main frame, 6, secondary frame, 7, hydraulic
Cylinder, 81, seaming chuck, 82, push-down head, 9, sample, 10, vertical displacement sensor, 11, cut swollen displacement sensor, 12, control valve,
13, data collector, 14, computer, 15, hydraulic press, 16 card slots, 93, differential settlement it is poor, 91, rock, 92, obturation.
Specific embodiment
Illustrate the present invention with reference to the accompanying drawing, as shown, the invention be mainly concerned with the processing method of sample with
And the measuring method of interface adhesion intensity.Wherein, adhesive property test device is by servo hydraulic system, loading system and number
It is formed according to acquisition system.Servo hydraulic system can provide quantifiable power source for loading system；Loading system realizes survey
The cohesive force test function of test agent；Data collection system realizes the transmission and recording function of data during test.
Sample 9 divides for two parts: 92 part of 91 part of rock and obturation.Wherein, the size of 91 sample parts of rock is
The cylinder sample of 50*100mm, is axially cut into two parts.
In sample process, along axially open first on the uncovered formwork for cylindrical columns 1 of soft-plastic material production, one is formed
A closeable notch 4.Mold is in use blocked notch 4 with glue rifle, impermeable at guarantee sealing 4, in uncovered circle
1 inner surface of post mold smears machinery oil, is convenient for demoulding.First 91 sample of rock (semicolumn) is put into uncovered formwork for cylindrical columns 1, so
Uniform 92 slurry of obturation is poured in uncovered formwork for cylindrical columns 1 afterwards, becomes a complete cylindrical body.With lid 2
Uncovered formwork for cylindrical columns 1 is covered, lid 2 and uncovered formwork for cylindrical columns 1 are sealed processing with sealant tape 3.
When demoulding, sealant tape 3 and lid 2 are first torn open, then remove the sealant on notch 4, using the deformation of notch 4,
Uncovered formwork for cylindrical columns 1 is separated with sample 9.Due to the differential settlement of obturation 92 poor 93, inhomogeneous deformation can be generated.It is trying
Before testing, poor 93 part of differential settlement is handled as plane.
In the continuous mode of interface adhesion intensity, adhesive property test device is by servo hydraulic system, load
System and data collection system composition.
Servo hydraulic system includes hydraulic press 15, control valve 12, hydraulic cylinder 7, computer 14；
Wherein, fluid pressure caused by hydraulic press 15 is the direct driving force source of power control system.12 He of control valve
Hydraulic cylinder 7 is controlled by computer 14, realizes that the servo power of system controls using the fluid pressure that hydraulic press 15 generates.
Loading system includes main frame 5, secondary frame 6, pressure head 8, sample 9, card slot 16；
Wherein, be transferred to hydraulic cylinder 7 it is hydraulic be loading system power resources.Pass through 14 SERVO CONTROL hydraulic cylinder of computer
Fluid pressure in 7 transfers force to seaming chuck 81 and push-down head 82 by fluid pressure.Seaming chuck 81 and push-down head 82 are direct
It is connect with sample 9, realizes the cohesive force test function of sample 9.Card slot 16 be wrapped in the outside of obturation 92 and with obturation 92
The mode of close connection, connection can be using the method for bonding, and card slot 16, which can play, prevents obturation 92 during the test
Collapse, and for guarantee to cut the data that swollen displacement sensor 11 measures be sample 9 it is whole cut swollen displacement, rather than certain point
Shift value.
The effect of secondary frame 6 is the balance for maintaining sample 9 and loading pressure head 8, and main frame 5 maintains the whole of entire loading system
Body balances, the stabilization during guarantee test.
Data acquisition system includes the vertical displacement sensor 10 in position, cuts swollen displacement sensor 11, data collector 13, computer
14；
Wherein, vertical displacement sensor 10 is connect with pressure head 8 and data collector 11, and vertical displacement sensor 10 can add
The vertical displacement varied journey system of pressure head 8 and sample 9 is recorded during carrying.It cuts swollen 11 device of displacement sensing and sample 9 and data acquires
Device 13 connects, convenient for cutting the variation of swollen displacement in record 9 loading procedure of sample.Data collector 13 is connect with computer 14, computer
14 results that can be recorded to data collector 11 carry out export and further data are analyzed.
The adhesive property test device, the calculation method of adhesion strength are as follows:
Wherein, τ is adhesion strength；F is to be further applied load；D is sample interface diameter；H is sample total height；H is uneven
Differential settlement；A bond area.
Said determination device is merely exemplary to illustrate the principle of the present invention and its effect, and is not intended to limit the present invention.It is any
Those skilled in the art all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.
Therefore, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by all those of ordinary skill in the art
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (4)
1. a kind of obturation-rock sample processing method, it is characterised in that: including sample, the sample is filling for semi- cylindrical
Fill out the cylinder that the rock of body and semi- cylindrical is integrated；
Sample is arranged between the upper grip of loading system and lower collet, and the face of upper grip and lower collet and sample contacts is semicircle
Shape, and it is corresponding with the obturation end face of sample and rock end face；
The loading system is driven by servo hydraulic system；
It further include data collection system, the data collection system includes the vertical displacement sensor in position, cuts swollen displacement sensor, data
Collector, computer；Wherein, vertical displacement sensor is connect with pressure head and data collecting instrument, and vertical displacement sensor can load
The change in displacement stroke of pressure head and sample is recorded in the process；It cuts swollen displacement sensor to connect with sample and data collecting instrument, be convenient for
The variation of swollen displacement is cut in record sample loading procedure；Data collecting instrument is connect with computer, and computer can record data collecting instrument
Result carry out export and further data analysis.
2. obturation according to claim 1-rock sample processing method, it is characterised in that: the sample processing method:
It is open on the uncovered formwork for cylindrical columns of soft-plastic material production along short transverse first, forms a closeable notch；Mold
Notch is blocked with glue rifle in use, guarantees that sealing part is impermeable, smears machinery oil in uncovered formwork for cylindrical columns inner surface,
Convenient for demoulding；Semicolumn rock sample is first put into the side of uncovered formwork for cylindrical columns along axial direction, then by uniform obturation material
Slurry pours the other side into uncovered formwork for cylindrical columns, becomes a complete cylindrical body；With lid by uncovered formwork for cylindrical columns
Lid and uncovered formwork for cylindrical columns are sealed processing with sealant tape by capping；
When demoulding, sealant tape and lid are first torn open, then remove the sealant on notch, using the deformation of notch, by uncovered circle
Post mold is separated with sample；Before the test, differential settlement difference part is handled as plane.
3. a kind of adhesive property test device for realizing claim 1 the method, it is characterised in that: including servo-hydraulic system
System, loading system and data collection system；The loading system includes main frame, secondary frame, seaming chuck, push-down head, card slot；
Time frame is arranged in the top of the main frame, and seaming chuck directed downwardly is arranged in the upper end of secondary frame, and the lower end setting of secondary frame is upward
Push-down head；The seaming chuck and push-down head are corresponding with the filling body portion of sample and rock part respectively；The push-down head
The piston rod of the oil cylinder of lower section and servo hydraulic system connects；The servo hydraulic system further includes control valve, and the oil cylinder is logical
Control valve is crossed to connect with hydraulic press；The data collection system includes the vertical displacement sensor in position, cut swollen displacement sensor, data are adopted
Storage, computer；Wherein, vertical displacement sensor is connect with push-down head and data collecting instrument, and vertical displacement sensor can load
The change in displacement stroke of pressure head and sample is recorded in the process；It cuts swollen displacement sensor to connect with sample and data collecting instrument, be convenient for
The variation of swollen displacement is cut in record sample loading procedure；Data collecting instrument is connect with computer, and computer can record data collecting instrument
Result carry out export and further data analysis.
4. adhesive property test device according to claim 3, it is characterised in that: the filling body portion of the sample is to set
It sets in a card slot with its form fit, prevents obturation from collapsing during the test, and passed to guarantee to cut swollen displacement
The data that sensor measures are the swollen displacement of cutting of sample entirety, rather than the shift value of certain point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910911183.5A CN110470597A (en) | 2019-09-25 | 2019-09-25 | A kind of obturation-rock sample processing method and adhesive property test device |
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| CN201910911183.5A CN110470597A (en) | 2019-09-25 | 2019-09-25 | A kind of obturation-rock sample processing method and adhesive property test device |
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| CN110470597A true CN110470597A (en) | 2019-11-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112098203A (en) * | 2020-08-03 | 2020-12-18 | 山东大学 | Fixing device for tensile-shear test of square test piece and test method |
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| GB2258734A (en) * | 1991-08-12 | 1993-02-17 | Daniel Rabindrana Hettiaratchi | Triaxial compression testing. |
| CN101620054A (en) * | 2009-07-03 | 2010-01-06 | 张磊 | Pavement structure and testing device for bridge deck pavement bonding interface shearing-resistance characteristic |
| CN102095680A (en) * | 2010-12-30 | 2011-06-15 | 中交第一公路勘察设计研究院有限公司 | Clamp and method for testing pavement interlayer shear fatigue test piece |
| CN202486040U (en) * | 2012-03-12 | 2012-10-10 | 郑州大学 | Test sample for testing interface binding strength of metal surface coating |
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| CN112098203A (en) * | 2020-08-03 | 2020-12-18 | 山东大学 | Fixing device for tensile-shear test of square test piece and test method |
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