CN105891108A - Device and method for testing shearing performance of inter-particle cement - Google Patents
Device and method for testing shearing performance of inter-particle cement Download PDFInfo
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- CN105891108A CN105891108A CN201610184811.0A CN201610184811A CN105891108A CN 105891108 A CN105891108 A CN 105891108A CN 201610184811 A CN201610184811 A CN 201610184811A CN 105891108 A CN105891108 A CN 105891108A
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- fixed block
- test platform
- sliding shoe
- test
- cement
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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
Abstract
The invention discloses a device and method for testing shearing performance of inter-particle cement. The testing device comprises a test platform, a fixed block and a sliding block, wherein the fixed block and the sliding block are arranged on the test platform and each fixedly connected with a model ball, a hinge pivot and an electric lifting device which drives the test platform to swing around the hinge pivot are arranged at the lower end of the test platform, and the sliding block is arranged at the upper end of the fixed block, slides on the fixed block under the action of the electric lifting device and is used for testing the bonding performance between the two model balls on the fixed block and the sliding block; a concave mirror is further arranged on the sliding block, and a light source and an optical inductor are arranged at the positions directly facing the position of the concave mirror, wherein the optical inductor is used for obtaining reflective light formed after light emitted by the light source passes through the concave mirror. The device is simple and easy to operate, the test result is more accurate, and the device and method can be better applied to bonding tests of interfaces.
Description
Technical field
The present invention relates to a kind of test device and test device, the test device of a kind of interfacial bond property
And method of testing.
Background technology
So far, numerous scholars simply carry out the test in terms of mechanical property to the cementing whole soil body completed,
But ground is made up of many microscopic particles, and the implant adhesion strength between granule and granule does not also obtain effectively
Research.Jiang Mingjing etc. simplify the cementing mechanical model of microcosmic and propose the method for testing of each parameter in model, for
Cementing thing mechanical property between research granule, its team uses two aluminium bars simulation cement particles, utilizes
Cement and epoxy resin, as cementing material, then carry out stretching, compress, press and cut, press that torsion etc. is a series of to be added
Carry testing inspection cementing strength, subsequently the cementing strength rule under different cementing thickness be studied, in order to enter
One step verifies adhesion strength cementing between sand granule, it is possible to use the granule contact mechanics that its research team develops
Characteristic test device is simulated test.Cementing for microcosmic mechanical model is incorporated into distinct element method, thus simulates
Mechanical characteristic under different loading environments of the soil body and cement and Analysis on Mechanism, set up cementing structure mould of the soil body
Type.The adhesion problem of granule is simplified to plane problem by Jiang Mingjing, by bonding force amplify, it is simple to the applying of power and
The test of displacement.Due to by bar-shaped replacement spheroid, thus with actual situation has certain error.
Hai etc. utilize the glass pellet simulation sand grains of a diameter of 3mm, and two beads are connected to essence
Above close pedestal, wherein a bead is connected to the stabilized platform with hard muscle, and another is connected to partially
Turn the moveable platform of optical fiber, single unit system is put in microorganism grouting solution, as shown in Figure 2.By moving
Moving platform drives optical fiber deflection thus to applying pulling force between two glass beads, and this design device well assesses mould
Intend the bond between sand granule, however it is necessary that and use accurate displacement measurement and micro-power bringing device.This test
Scheme indirectly calculates the power of applying by applying small displacement, and this power has a lot of influence factors,
As due to fiber size less, when calculating optical fiber resistance moment can the error brought of up-sizing, and displacement measurement
Precision, all can affect the reliability of result of the test, and test the high-precision micro-displacement actuator of needs.
Summary of the invention
The technical problem to be solved is the deficiency existed for above-mentioned prior art, and provides a kind of survey
Try the high shearing performance test device of simple in construction, convenient test and testing precision and method of testing.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
The test device of a kind of intergrain bond thing cutting performance, including test platform, it is characterised in that: in institute
State and on test platform, be provided with the fixed block and sliding shoe being connected with a model ball respectively, at described test platform
Lower end is provided with the electric up-down dress that a hinged support and makes described test platform swing around described hinged support
Putting, described sliding shoe is arranged on the upper end of described fixed block and described under the effect of described Motorized lift device
Slide on fixed block the adhesive property being used for test on fixed block and sliding shoe between two model ball；Described
It is additionally provided with a concave mirror on sliding shoe, in just position to this concave mirror, one line source and is set for obtaining
The light that described line source sends is through the optical inductor of described concave mirror back reflection light；Described lowering or hoisting gear is according to described
Optical inductor enters the sensed position set and controls described lowering or hoisting gear lifting or reduction according to described reflection light
Highly.
Described optical inductor is screen or sensed data processing terminal；Described line source is laser.
Being provided with slip case and fixing case on described test platform, described sliding shoe is arranged on described slip
In case, described fixed block is arranged in described fixing case, and described slip case is positioned on described fixing case
End, is formed with a cavity, the mould on described fixed block and sliding shoe between described fixing case and mobile case
Type ball is positioned at described cavity, is communicated with and waters for the note forming cement between two model ball in this cavity
Passage.
Being fixed with a fixed mount on described test platform, described fixed block passes through the adjustable installation of fixed block bolt
On described test platform, by adjusting, handle is adjustable to be arranged on described fixed mount described fixing case.
It is provided with ball between described fixed block and fixing case.
A kind of method testing intergrain bond thing cutting performance, it is characterised in that step is:
Step one, the sliding shoe that will be formed with cement and fixed block are placed on the test platform of level, incite somebody to action
Fixed block is fixed with test platform；
Step 2, thickness according to cement determine the distance that when cement destroys, sliding shoe slides, and according to this
One distance determines the sensed position that optical inductor sets；
Step 3, by Motorized lift device progressively lifting test platform one end, when reflection light arrives sensed position
Time, stop lifting test platform, obtain the angle of inclination of test platform；
Step 4, the angle of inclination obtained according to step 3 calculate cohesive force when shearing:
F=Gsin θ-μ Gcos θ
Wherein, F is cohesive force during granule shearing, and f is the frictional force between sliding shoe and fixed block, and G is
The weight of sliding shoe, μ is coefficient of friction.
Distance is described model ball radius 5～8% that when described cement destroys, sliding shoe slides.
Compared with prior art, apparatus of the present invention are simple, it is easy to operation, and result of the test is more accurate, can be more preferably
The adhesion test being applied to interface in, sliding shoe is positioned at the upper end of fixed block, by the weight of fixed block self
Can imposed load between mould ball, the cutting performance under particles' interaction can be reflected more really, with reality
More being consistent, test result is more targetedly and the suitability.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention tests device；
Fig. 2 is that the present invention tests device shearing test state diagram；
Fig. 3 is concave mirror displacement measurement schematic diagram.
Wherein: 1, test platform；2, sliding shoe；21, slip case；3, fixed block；31, fixing cover
Shell；32, sliding surface；33, baffle plate；4, fixed mount；5, handle is adjusted；6, ball；7, grout outlet；
8, grouting port；9, model ball；10, concave mirror；11, hinged support；12, lowering or hoisting gear；13, cementing
Thing；14, line source；15, optical inductor.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the present invention is elaborated:
Include as it is shown in figure 1, the present invention tests device:
Making two length of sides is the module of 30mm*50mm*30mm, and one is sliding shoe 2, and one is fixing
Block 3, wherein fixed block 3 is fixed on the test platform 1 of rigidity, and sliding shoe 2 is being fixed by guide rails assembling
On block 3 and relatively can slide on fixed block.Choose 2-3mm diameter silicon granule ball as simulation soil particle
Model ball 9, model ball 9 is connected with two modules respectively.Hinged one end, test platform 1 one end is shelved on
On displacement Motorized lift device 12.Sliding shoe 2 is also equipped with a concave mirror 10, just to this concave mirror
Position one line source 14 and is set for obtaining light that line source the sends light sensation through concave mirror back reflection light
Answer device 15.
For cement and model ball molding on test platform, sliding shoe 2 and fixed block 3 are individually positioned in
In one slip case 21 and fixing case 31, slip case 21 is by being arranged on the guide rail on fixing case 31
Fixing case slides, fixing case is additionally provided with for spacing baffle plate 33, prevents slip case
Fall when sliding.Fixing case 31 is connected by adjusting handle 5 with the fixed mount 4 on test platform, for
Being conveniently adjusted the thickness of cement between fixed block and sliding shoe, fixed block passes through fixed block bolt adjustable peace
Being contained on test platform and can slide in fixing case 31, sliding interface is provided with the ball 6 reducing friction.
It is enclosed with one for the cavity of slip casting in the casing structure being made up of slip case 21 and fixing case 31, with this
What cavity connected has grouting port 8 and grout outlet 7.
First pass through grouting port before testing experiment and carry out slip casting, treat slip casting and cementing complete to carry out afterwards interface adhesion
Can test.Relevant bacteria species (such as Bacillus pasteurii) is used to carry out slip casting in sample.
Shearing test:
A kind of method testing intergrain bond thing cutting performance, step is:
Step one, the sliding shoe that will be formed with cement and fixed block are placed on the test platform of level, incite somebody to action
Fixed block is fixed with test platform；
Step 2, thickness according to cement determine the distance that when cement destroys, sliding shoe slides, and according to this
One distance determines the sensed position that optical inductor sets；
Step 3, by Motorized lift device progressively lifting test platform one end, when reflection light arrives sensed position
Time, stop lifting test platform, obtain the angle of inclination of test platform；
Step 4, the angle of inclination obtained according to step 3 calculate cohesive force when shearing:
F=Gsin θ-μ Gcos θ
Wherein, F is cohesive force during granule shearing, and f is the frictional force between sliding shoe and fixed block, and G is
The weight of sliding shoe, μ is coefficient of friction.
Claims (7)
1. a test device for intergrain bond thing cutting performance, including test platform, it is characterised in that:
Described test platform is provided with the fixed block and sliding shoe being connected with a model ball respectively, puts down in described test
The lower end of platform is provided with the electronic liter that a hinged support and makes described test platform swing around described hinged support
Falling unit, described sliding shoe be arranged on described fixed block upper end and under the effect of described Motorized lift device
Slide on described fixed block the adhesive property being used for test on fixed block and sliding shoe between two model ball；?
Be additionally provided with a concave mirror on described sliding shoe, arrange in just position to this concave mirror a line source and one for
Obtain light that described line source the sends optical inductor through described concave mirror back reflection light；Described lowering or hoisting gear according to
Described optical inductor enters the sensed position set and controls described lowering or hoisting gear lifting or fall according to described reflection light
Low height.
Test device the most according to claim 1, it is characterised in that: described optical inductor be screen or
Sensed data processing terminal；Described line source is laser.
Test device the most according to claim 1 and 2, it is characterised in that: on described test platform
Being provided with slip case and fixing case, described sliding shoe is arranged in described slip case, and described fixed block sets
Putting in described fixing case, described slip case is positioned at described fixing case upper end, at described fixing case and
Being formed with a cavity between mobile case, the model ball on described fixed block and sliding shoe is positioned at described cavity,
It is communicated with in this cavity and waters passage for the note forming cement between two model ball.
Test device the most according to claim 3, it is characterised in that: fixing on described test platform
Having a fixed mount, described fixed block is arranged on described test platform by fixed block bolt is adjustable, described solid
Handle is adjustable to be arranged on described fixed mount by adjusting to determine case.
Test device the most according to claim 4, it is characterised in that: at described fixed block and fixing cover
Ball it is provided with between shell.
6. based on the method testing device to test intergrain bond thing cutting performance described in claim 1,
It is characterized in that, step is:
Step one, the sliding shoe that will be formed with cement and fixed block are placed on the test platform of level, incite somebody to action
Fixed block is fixed with test platform；
Step 2, thickness according to cement determine the distance that when cement destroys, sliding shoe slides, and according to this
One distance determines the sensed position that optical inductor sets；
Step 3, by Motorized lift device progressively lifting test platform one end, when reflection light arrives sensed position
Time, stop lifting test platform, obtain the angle of inclination of test platform；
Step 4, the angle of inclination obtained according to step 3 calculate cohesive force when shearing:
Fl=Gsin θ-μ Gcos θ
Wherein, FlCohesive force when shearing for granule, f is the frictional force between sliding shoe and fixed block, and G is
The weight of sliding shoe, μ is coefficient of friction.
Method the most according to claim 6, it is characterised in that: when described cement destroys, sliding shoe is sliding
Dynamic distance is described model ball radius 5～8%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610184811.0A CN105891108B (en) | 2016-03-28 | 2016-03-28 | A kind of test device of intergrain bond thing cutting performance and method of testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610184811.0A CN105891108B (en) | 2016-03-28 | 2016-03-28 | A kind of test device of intergrain bond thing cutting performance and method of testing |
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| CN105891108A true CN105891108A (en) | 2016-08-24 |
| CN105891108B CN105891108B (en) | 2017-03-08 |
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| CN201610184811.0A Active CN105891108B (en) | 2016-03-28 | 2016-03-28 | A kind of test device of intergrain bond thing cutting performance and method of testing |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106813977A (en) * | 2017-01-18 | 2017-06-09 | 浙江科技学院（浙江中德科技促进中心） | Carefully see strain gauge means and measuring method in the cementing area of sand particle nanogel |
| CN106814031A (en) * | 2017-01-18 | 2017-06-09 | 浙江科技学院（浙江中德科技促进中心） | The cementing shearing of sand particle nanogel and bending strength test device and its method |
| CN106840921A (en) * | 2017-01-23 | 2017-06-13 | 浙江科技学院（浙江中德科技促进中心） | The cementing area's torsional strength of sand particle nanogel and shearing strain test device and method |
| CN111551407A (en) * | 2020-04-14 | 2020-08-18 | 清华大学 | Cementing double-spherical particle material and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002131204A (en) * | 2000-10-27 | 2002-05-09 | Yamaguchi Technology Licensing Organization Ltd | Simplified-type field shearing testing method and device |
| CN101393093A (en) * | 2007-09-19 | 2009-03-25 | 同济大学 | Cementing granule contact anti-shearing and torsion resistant test device |
| CN101666720A (en) * | 2009-09-08 | 2010-03-10 | 清华大学 | Scouring model experimental device of underground silt and method |
| CN104007025A (en) * | 2014-05-08 | 2014-08-27 | 河海大学 | Multifunctional tilt table device used for testing interfacial shear strength characteristics of geotechnical synthetic material |
| CN104614258A (en) * | 2015-01-22 | 2015-05-13 | 同济大学 | Testing device for contact shear resistance, bending resistance and torsion resistance of hemispherical ideal cementation particles |
-
2016
- 2016-03-28 CN CN201610184811.0A patent/CN105891108B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002131204A (en) * | 2000-10-27 | 2002-05-09 | Yamaguchi Technology Licensing Organization Ltd | Simplified-type field shearing testing method and device |
| CN101393093A (en) * | 2007-09-19 | 2009-03-25 | 同济大学 | Cementing granule contact anti-shearing and torsion resistant test device |
| CN101666720A (en) * | 2009-09-08 | 2010-03-10 | 清华大学 | Scouring model experimental device of underground silt and method |
| CN104007025A (en) * | 2014-05-08 | 2014-08-27 | 河海大学 | Multifunctional tilt table device used for testing interfacial shear strength characteristics of geotechnical synthetic material |
| CN104614258A (en) * | 2015-01-22 | 2015-05-13 | 同济大学 | Testing device for contact shear resistance, bending resistance and torsion resistance of hemispherical ideal cementation particles |
Non-Patent Citations (1)
| Title |
|---|
| HAI LIN ETAL.: "Measurement of Bonding Strength between Glass Beads Treated by Microbial-Induced Calcite Precipitation(MICP)", 《GEOTECHNICAL SPECIAL PUBLICATION》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106813977A (en) * | 2017-01-18 | 2017-06-09 | 浙江科技学院（浙江中德科技促进中心） | Carefully see strain gauge means and measuring method in the cementing area of sand particle nanogel |
| CN106814031A (en) * | 2017-01-18 | 2017-06-09 | 浙江科技学院（浙江中德科技促进中心） | The cementing shearing of sand particle nanogel and bending strength test device and its method |
| CN106814031B (en) * | 2017-01-18 | 2019-03-19 | 浙江科技学院（浙江中德科技促进中心） | The cementing shearing of sand particle nanogel and bending strength test device and its method |
| CN106813977B (en) * | 2017-01-18 | 2019-05-17 | 浙江科技学院（浙江中德科技促进中心） | Carefully see strain gauge means and measurement method in the cementing area of sand particle nanogel |
| CN106840921A (en) * | 2017-01-23 | 2017-06-13 | 浙江科技学院（浙江中德科技促进中心） | The cementing area's torsional strength of sand particle nanogel and shearing strain test device and method |
| CN106840921B (en) * | 2017-01-23 | 2019-04-05 | 浙江科技学院（浙江中德科技促进中心） | The cementing area's torsional strength of sand particle nanogel and shearing strain test device and method |
| CN111551407A (en) * | 2020-04-14 | 2020-08-18 | 清华大学 | Cementing double-spherical particle material and preparation method thereof |
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| CN105891108B (en) | 2017-03-08 |
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