CN107764636B - A kind of deformation measuring device and method of cuboid rock sample conventional triaxial compression test - Google Patents
A kind of deformation measuring device and method of cuboid rock sample conventional triaxial compression test Download PDFInfo
- Publication number
- CN107764636B CN107764636B CN201710991210.5A CN201710991210A CN107764636B CN 107764636 B CN107764636 B CN 107764636B CN 201710991210 A CN201710991210 A CN 201710991210A CN 107764636 B CN107764636 B CN 107764636B
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- lateral
- deformation measuring
- clamper
- pair
- measuring device
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/025—Geometry of the test
- G01N2203/0258—Non axial, i.e. the forces not being applied along an axis of symmetry of the specimen
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0682—Spatial dimension, e.g. length, area, angle
Abstract
The invention discloses the deformation measuring device and method of a kind of cuboid rock sample conventional triaxial compression test, which includes a set of axial deformation measuring device and two sets of lateral deformation measuring devices；Wherein: axial deformation measuring device includes two pairs of identical first lateral clampers setting up and down, setting is there are two the first horizontal sliding bar between each pair of first lateral clamper, and there are two axial slide bars and a pair of of displacement sensor for setting between two pair of first lateral clamper；Two sets of lateral deformation measuring devices are set between two pair of first lateral clamper, every set lateral deformation measuring device includes the lateral clamper of a pair second, and there are two the second horizontal sliding bar, two springs and a pair of of displacement sensors for setting between each pair of second lateral clamper；Two sets of lateral deformation measuring devices are arranged in a mutually vertical manner.The present invention solves the problems, such as that the measuring device of cylindrical specimens can not be applied to cuboid sample.The deformation measuring device is easy to operate, and measurement accuracy is high.
Description
Technical field
The present invention relates to rock mechanical property mechanical behavior testing fields, are related specifically to cuboid rock sample
The deformation measuring device and method of triaxial compression test.
Background technique
Currently, sample is generally cylindrical body in rock ordinary triaxial test.But cylindrical specimens processing crack,
It is determining to there is a problem of that position is not easy when defect, so it is very necessary for carrying out cuboid rock conventional triaxial compression test
's.And the circumferential measuring device of cylindrical specimens is generally the measurement ring of chain composition, and measure ring in cuboid sample not
It is suitble to, being primarily due to cuboid, there are corner angle, it cannot be guaranteed that measurement ring is freely rotated, cause measurement data inaccurate.Therefore, originally
The a set of deformation measuring device and method applied to cuboid rock sample conventional triaxial compression test of Invention Announce, it is intended to solve
Certainly the measuring device of cylindrical specimens can not be applied to the problem of cuboid sample.
Summary of the invention
The object of the present invention is to provide a kind of deformation measuring device of cuboid rock sample conventional triaxial compression test and
Method, it is intended to solve the problems, such as that the measuring device of cylindrical specimens can not be applied to cuboid sample.
To achieve the above object, the technical solution adopted by the present invention are as follows:
A kind of deformation measuring device of cuboid rock sample conventional triaxial compression test, including a set of axial deformation measurement
Device and two sets of lateral deformation measuring devices；Wherein:
Axial deformation measuring device includes two pairs of identical first lateral clampers setting up and down, and each pair of first is horizontal
To setting between clamper there are two the first horizontal sliding bar, between two pair of first lateral clamper setting there are two axial slide bar and
A pair of of displacement sensor；
Two sets of lateral deformation measuring devices are set between two pair of first lateral clamper, every set lateral deformation measuring device
Including the lateral clamper of a pair second, there are two the second horizontal sliding bars, two springs for setting between each pair of second transverse direction clamper
And a pair of of displacement sensor；Two sets of lateral deformation measuring devices are arranged in a mutually vertical manner.
The end of first horizontal sliding bar, which is provided with, steps up screw, steps up screw by screw and covers the bullet on the screw
Property component composition.
It is provided with semicircle convex block on each second lateral clamper, and the lateral clamper semicircle of second be located above
Downward, the underlying second lateral clamper semicircle convex block is upward for shape convex block.
A kind of deformation measurement method of cuboid rock sample conventional triaxial compression test, comprising the following steps:
(1) end portion of axially measured device is mounted on to the lower end for completing the sample of seal operation, and by stepping up
Screw is fixed；
(2) two sets of lateral deformation measuring devices are installed on sample, two sets of lateral deformation measuring devices are mutually perpendicular to, and are protected
The semicircle convex block on lateral deformation measuring device is demonstrate,proved in the center of sample；
(3) upper part of axially measured device is mounted on to the upper end of sample, and is fixed by stepping up screw；
(4) displacement sensor is installed in axially measured device and lateral deformation measuring device；
(5) mounted sample is pushed into pressure indoor, oil-filled plus confining pressure carries out conventional triaxial compression test.
The utility model has the advantages that device and method provided by the invention can be applied to the examination of cuboid rock sample mechanical property
It tests, solves the problems, such as that the measuring device of cylindrical specimens can not be applied to cuboid sample.By a large amount of practical proofs, show
The deformation measuring device is easy to operate, and measurement accuracy is high.
Detailed description of the invention
Fig. 1 is deformation measuring device three-dimensional assembling schematic diagram of the invention；
Fig. 2 is the schematic diagram of axial deformation measuring device of the invention；
Fig. 3 is the schematic diagram of lateral deformation measuring device of the invention；
Fig. 4 is the schematic diagram for stepping up screw of the invention；
In figure, 1- deformation measuring device, the first deformation measuring device of 2-, the second deformation measuring device of 3-, 4- sample, 5-
One horizontal sliding bar, the axial slide bar of 6- second, 7- displacement sensor, the lateral clamper of 8- first, the lateral clamper of 9- second, 10-
Second horizontal sliding bar, 11- step up screw, 12- spring, 13- semicircle convex block.
Specific embodiment
The present invention will be further explained with reference to the accompanying drawing.
It is filled as shown in Figs 1-4 for a kind of deformation measurement of cuboid rock sample conventional triaxial compression test of the invention
It sets, including a set of axial deformation measuring device 1 and two sets of lateral deformation measuring devices；Wherein:
Axial deformation measuring device includes two pairs setting up and down identical first lateral clampers 8, and each pair of first
Setting is there are two the first horizontal sliding bar 5 between lateral clamper 8, and there are two axial for setting between two pair of first lateral clamper 8
Slide bar 6 and a pair of of displacement sensor 7；Each pair of first lateral clamper 8 cooperates two the first horizontal sliding bars 6 being disposed between,
Guarantee it in one plane, two pair of first lateral clamper 8 cooperates two axial slide bars 6 that can guarantee displacement sensor 7 not
It glances off；The end of first horizontal sliding bar 5, which is provided with, steps up screw 11, as shown in figure 4, stepping up screw 11 by screw and covering
Spring composition on the screw, step up screw 11 for guarantee the first lateral clamper 8 be tightly combined with sample 4, and then guarantee
Measurement accuracy.
Two sets of lateral deformation measuring devices are set between two pair of first lateral clamper 8, respectively the first deformation measurement
Device 2 and the second deformation measuring device 3, every set lateral deformation measuring device include the lateral clamper 9 of a pair second, and each pair of second
There are two 10, two springs 12 of the second horizontal sliding bar and a pair of of displacement sensors 7 for setting between lateral clamper 9；First deformation
Measuring device 2 and the second deformation measuring device 3 are arranged in a mutually vertical manner, 10 He of the second horizontal sliding bar of the first deformation measuring device 2
Second deformation measuring device, 3 second horizontal sliding bar 10 is mutually perpendicular to.Each pair of second lateral clamper 9 cooperates two second laterally to slide
Bar 10 can guarantee that displacement sensor 7 in one plane moves, and guarantee measurement accuracy；Each pair of second lateral clamper 9 cooperates
Spring 12, it is ensured that the second lateral clamper 9 is bonded closely with sample 4；Half is provided on each second lateral clamper 9
Round bump 13, and the second semicircle convex block 13 of lateral clamper 9 being located above is downward, the underlying second laterally clamping
The semicircle convex block 13 of device 9 upward, guarantees the deformation that two sets of lateral deformation measuring devices measure for the deformation at 4 center of sample.
A kind of deformation measurement method of cuboid rock sample conventional triaxial compression test, comprising the following steps:
(1) end portion of axially measured device 1 is mounted on to the lower end for completing the sample 4 of seal operation, and by adding
Tight screw 11 is fixed；It should ensure that the first lateral clamper 8 is aligned with the lower end of sample 4 at this time；
(2) two sets of lateral deformation measuring devices are installed on sample, two sets of lateral deformation measuring devices are mutually perpendicular to, and are protected
The semicircle convex block on lateral deformation measuring device is demonstrate,proved in the center of sample；
(3) upper part of axially measured device is mounted on to the upper end of sample, and is fixed by stepping up screw；This
When should ensure that the first lateral clamper 8 is aligned with the upper end of sample 4；
(4) displacement sensor is installed in axially measured device and lateral deformation measuring device；
(5) mounted sample is pushed into pressure indoor, oil-filled plus confining pressure carries out conventional triaxial compression test.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (2)
1. a kind of deformation measuring device of cuboid rock sample conventional triaxial compression test, it is characterised in that: including a set of axis
To deformation measuring device and two sets of lateral deformation measuring devices；Wherein:
Axial deformation measuring device includes two pairs of identical first lateral clampers (8) setting up and down, and each pair of first is horizontal
To there are two settings between clamper (8) the first horizontal sliding bar (5), between two pair of first lateral clamper (8) there are two settings
Axial slide bar (6) and a pair of of displacement sensor (7)；
Two sets of lateral deformation measuring devices are set between two pair of first lateral clamper (8), every set lateral deformation measuring device
Including the lateral clamper (9) of a pair second, there are two the second horizontal sliding bars for setting between each pair of second transverse direction clamper (9)
(10), two springs (12) and a pair of of displacement sensor (7)；Two sets of lateral deformation measuring devices are arranged in a mutually vertical manner；
The end of first horizontal sliding bar (5), which is provided with, steps up screw (11), steps up screw (11) by screw and covers in the spiral shell
The elastomeric element composition nailed on；
Semicircle convex block (13) are provided on each second lateral clamper (9), and the lateral clamper of second be located above
(9) downward, the underlying second lateral semicircle convex block (13) of clamper (9) is upward for semicircle convex block (13).
2. a kind of deformation measurement side of the cuboid rock sample conventional triaxial compression test based on device described in claim 1
Method, it is characterised in that: the following steps are included:
(1) end portion of axially measured device is mounted on to the lower end for completing the sample of seal operation, and by stepping up screw
It is fixed；
(2) two sets of lateral deformation measuring devices are installed on sample, two sets of lateral deformation measuring devices are mutually perpendicular to, and guarantee side
Semicircle convex block on deformation measuring device is in the center of sample；
(3) upper part of axially measured device is mounted on to the upper end of sample, and is fixed by stepping up screw；
(4) displacement sensor is installed in axially measured device and lateral deformation measuring device；
(5) mounted sample is pushed into pressure indoor, oil-filled plus confining pressure carries out conventional triaxial compression test.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710991210.5A CN107764636B (en) | 2017-10-23 | 2017-10-23 | A kind of deformation measuring device and method of cuboid rock sample conventional triaxial compression test |
| AU2018357027A AU2018357027B2 (en) | 2017-10-23 | 2018-03-20 | Deformation measurement device and method of conventional triaxial compression test of cuboid rock sample |
| PCT/CN2018/079578 WO2019080439A1 (en) | 2017-10-23 | 2018-03-20 | Deformation measurement device and method of conventional triaxial compression test of cuboid rock sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710991210.5A CN107764636B (en) | 2017-10-23 | 2017-10-23 | A kind of deformation measuring device and method of cuboid rock sample conventional triaxial compression test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107764636A CN107764636A (en) | 2018-03-06 |
| CN107764636B true CN107764636B (en) | 2019-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710991210.5A Active CN107764636B (en) | 2017-10-23 | 2017-10-23 | A kind of deformation measuring device and method of cuboid rock sample conventional triaxial compression test |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN107764636B (en) |
| AU (1) | AU2018357027B2 (en) |
| WO (1) | WO2019080439A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107764636B (en) * | 2017-10-23 | 2019-04-19 | 中国矿业大学 | A kind of deformation measuring device and method of cuboid rock sample conventional triaxial compression test |
| CN109342194B (en) * | 2018-12-20 | 2024-02-13 | 东北大学 | Rock sample transverse deformation measuring device |
| CN113203622A (en) * | 2021-04-26 | 2021-08-03 | 温州大学 | Real-time measuring system for detecting radial displacement of geotechnical triaxial sample |
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- 2018-03-20 AU AU2018357027A patent/AU2018357027B2/en active Active
- 2018-03-20 WO PCT/CN2018/079578 patent/WO2019080439A1/en active Application Filing
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| US3728895A (en) * | 1970-12-18 | 1973-04-24 | Trw Inc | Triaxial compression test apparatus |
| SU700838A1 (en) * | 1978-06-09 | 1979-11-30 | Московский Ордена Трудового Красного Знамени Инженерно-Строительный Институт Им. В.В.Куйбышева | Device for investigating properties of soil under the conditions of triaxial compression |
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| CN104344997A (en) * | 2014-11-04 | 2015-02-11 | 同济大学 | Passive type restraint loading device for triaxial test |
| CN106248482A (en) * | 2016-07-08 | 2016-12-21 | 山东大学 | A kind of Triaxial tester being applicable to soft rock and method |
| CN106872275A (en) * | 2017-04-13 | 2017-06-20 | 石家庄铁道大学 | A kind of simple three-dimensional loading and unloading device and its detection method |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2018357027A1 (en) | 2020-01-23 |
| CN107764636A (en) | 2018-03-06 |
| WO2019080439A1 (en) | 2019-05-02 |
| AU2018357027B2 (en) | 2021-06-10 |
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