CN107063854A - A kind of device for being used to measure the change of triaxial test body - Google Patents
A kind of device for being used to measure the change of triaxial test body Download PDFInfo
- Publication number
- CN107063854A CN107063854A CN201710065602.9A CN201710065602A CN107063854A CN 107063854 A CN107063854 A CN 107063854A CN 201710065602 A CN201710065602 A CN 201710065602A CN 107063854 A CN107063854 A CN 107063854A
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- change
- measure
- balance
- triaxial
- aqueous vapor
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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
- G01N3/062—Special adaptations of indicating or recording means with mechanical 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
- G01N3/02—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
- 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
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0075—Strain-stress relations or elastic constants
-
- 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
- G01N2203/0256—Triaxial, i.e. the forces being applied along three normal axes 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
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0266—Cylindrical specimens
-
- 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
- G01N2203/0605—Mechanical indicating, recording or sensing means
-
- 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
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of device for being used to measure the change of triaxial test body, the two ends of balance crossbeam hang measurement loading and aqueous vapor balancing gate pit respectively, and the liquid storehouse of aqueous vapor balancing gate pit is connected with triaxial cell, and gas storehouse is connected with source of the gas.By entering the water body weight of triaxial cell in aqueous vapor pressure room, the Volume Changes of sample in measurement triaxial pressure room are reached；The water body weight for entering triaxial cell in aqueous vapor pressure room is weighed by balance；By liquid level tube, the Volume Changes of sample in the degree of accuracy, triaxial pressure room that balance weighs are adjusted, it is to avoid error, it is to avoid be repeated several times and weigh；Pass through protection device, it is to avoid crossbeam is hurriedly significantly swung, while protection balance, protection aqueous vapor balancing gate pit and triaxial cell；Pass through load sensor and electronic scale, the convenient change for reading gravity.Simple in construction, measurement accuracy of the invention is high, easy to operate, can meet the requirement of triaxial test, the precision that actual measurement body becomes is up to 0.1cm3It is even more small.
Description
Technical field
The present invention relates to a kind of measurement apparatus, and in particular to a kind of device for being used to measure the change of triaxial test body.
Background technology
Triaxial test is to carry out Rock And Soil intensity and the most frequently used research technique of deformation characteristic research, and general principle is to three
Cylindrical ground sample in Zhou Yi balancing gate pits applies confined pressure and axial stress by certain stress path, and determines different stress
The axial strain of sample and body become under state, until sample failure by shear.
For the saturation soil body, the general method measurement using water body volume change in measurement sample of measurement that body becomes, but by
In the limitation of laboratory test means, many times it is extremely difficult in comparatively ideal saturation state, sample often remain certain gas
Body, causes the body varied curve of triaxial test discontinuous or becomes with true body and produce relatively large deviation, have impact on and three axles are tried
Sample body becomes the degree of accuracy of measurement.
For the unsaturation soil body and general rock mass, change frequently with radial direction radius on measurement sample typical section and then
Calculate try to achieve sample body become, due to sample cross sections radial direction radius change be uneven and also sample end and sample in
Portion's radial direction radius change differs greatly, therefore, and by measuring the method for typical section radial deformation, there is also defect, it is impossible to reflects
Real body becomes during triaxial test.
The content of the invention
To solve the deficiencies in the prior art, it is an object of the invention to provide a kind of simple in construction, easy to operate, measurement essence
The high device for being used to measure the change of triaxial test body of degree.
In order to realize above-mentioned target, the present invention is adopted the following technical scheme that：
A kind of device for being used to measure the change of triaxial test body, the top of aqueous vapor balancing gate pit is provided with weighing device；The aqueous vapor pressure
The liquid storehouse of room is connected with triaxial cell, and gas storehouse is connected with source of the gas；The outside of the aqueous vapor balancing gate pit connects liquid respectively provided with two ends
Storehouse and the liquid level tube of gas storehouse.
Above-mentioned liquid level tube is with a scale.The change of aqueous vapor pressure indoor water position is read by liquid level tube, and then balance can be examined
Weighing precision, can also adjust the Volume Changes of triaxial cell, it is to avoid calculate mistake and error, it is to avoid multiple repeated measurement.
Above-mentioned weighing device is balance, and the two ends of balance crossbeam hang measurement loading and aqueous vapor balancing gate pit respectively.
Further, the top of above-mentioned balance is provided with protection device, and the protection device is that two ends bottom is respectively equipped with limit
The cross bar of position bar.The significantly swing of crossbeam is limited by gag lever post, plays a part of protection aqueous vapor balancing gate pit；Simultaneously avoid because
Crossbeam, which is crossed, significantly to be swung, and reversely actuates the rapid flowing of aqueous vapor pressure indoor water gas.
Above-mentioned crossbeam is provided with the balance dial with pointer, plays a part of auxiliary identification and weighs poised state.
Further, above-mentioned cross bar is connected with the equalization point of balance crossbeam, and cross bar is parallel to each other with crossbeam.Cross bar and crossbeam
It is servo-actuated, constantly keep being parallel to each other, while limiting cross bar rapid amplitude of fluctuation, increase the hunting range of cross bar, for
The larger weight change in aqueous vapor balancing gate pit has superior operability.
Further, above-mentioned cross bar is connected with balance support, and cross bar is mutually perpendicular to support.
Further, above-mentioned cross bar is provided with counterweight.
Above-mentioned measurement loading includes the scale pan with counterweight.
Further, above-mentioned scale pan is connected by load sensor with crossbeam.
Further, the bottom of above-mentioned scale pan is provided with electronic scale, by load sensor and electronic scale, more easily reads
Take the change of gravity.
The present invention is advantageous in that：A kind of device for being used to measure the change of triaxial test body of the present invention, passes through aqueous vapor
Enter the water body weight of triaxial cell in balancing gate pit, reach the Volume Changes of sample in measurement triaxial pressure room；Pass through balance
Weigh the water body weight for entering triaxial cell in aqueous vapor pressure room；Balance can be adjusted by the liquid level tube outside aqueous vapor pressure room
The degree of accuracy of weighing, adjusts the Volume Changes of sample in triaxial pressure room, it is to avoid error, it is to avoid is repeated several times and weighs；By protecting
Protection unit, it is to avoid crossbeam is hurriedly significantly swung, while protection balance, protection aqueous vapor balancing gate pit and triaxial cell；Pass through
Load sensor and electronic scale, the convenient change for reading gravity.
A kind of device for being used to measure the change of triaxial test body of the present invention, simple in construction, measurement accuracy is high, easy to operate,
The requirement of general triaxial test can be met, the precision that actual measurement body becomes is up to 0.1cm3It is even more small, with very strong practicality
Property and wide applicability.
Brief description of the drawings
Fig. 1 is a kind of structural representation for being used to measure the device of triaxial test body change of the invention.
The implication marked in accompanying drawing is as follows：1st, balance, 2, crossbeam, 3, counterweight, 4, scale pan, 5, load sensor, 6, electricity
Sub- scale, 7, big loading disk, 8, aqueous vapor balancing gate pit, 9, gas storehouse, 10, liquid storehouse, 11, connect source of the gas, 12, meet triaxial cell, 13, liquid level
Pipe, 14, cross bar, 15, gag lever post, 16, support, 17, pointer.
Embodiment
Make specific introduce to the present invention below in conjunction with the drawings and specific embodiments.
Embodiment 1
A kind of device for being used to measure the change of triaxial test body, the He of scale pan 4 of the two ends difference suspension strap counterweight 3 of the crossbeam 2 of balance 1
Aqueous vapor balancing gate pit 8, the liquid storehouse 10 of aqueous vapor balancing gate pit 8 is connected with triaxial cell, and gas storehouse 9 is connected with source of the gas.
The outside of aqueous vapor balancing gate pit 8 connects the liquid level tube with a scale 13 of liquid storehouse 10 and gas storehouse 9 provided with two ends respectively.
The equalization point of the crossbeam 2 of balance 1 is provided with the balance dial with pointer 17.
By increasing and decreasing the counterweight 3 in scale pan 4 so that the crossbeam 2 of balance 1 keeps horizontality；By the weight change of counterweight 3
The weight change of aqueous vapor balancing gate pit 8 is measured, and then measures triaxial test body and is become.
The change of water level in aqueous vapor balancing gate pit 8 can be read by liquid level tube 13, further the measurement of detection balance 1 is accurate
Degree, and the water body of triaxial cell change；While excluding and avoid error, the accuracy of measurement is appraised and decided.
Embodiment 2
Provided with the cross bar 14 being parallel to each other with crossbeam 2 on the crossbeam 2 of embodiment 1, tie point is the equalization point of crossbeam 2；Cross bar
The bottom at 14 two ends is respectively equipped with gag lever post 15, and the significantly swing of crossbeam 2, protection aqueous vapor balancing gate pit are limited by gag lever post 15
8。
Cross bar 14 is provided with counterweight 3, plays a part of balance and load-carrying, reduces the heavy burden of scale pan 4.
Embodiment 3
It is provided with the top of 1 support of balance 16 of embodiment 1 and the orthogonal cross bar of support 16 14, the bottom point at the two ends of cross bar 14
Not She You gag lever post 15, pass through the significantly swing that gag lever post 15 limits crossbeam 2, protection aqueous vapor balancing gate pit 8.
Cross bar 14 is provided with counterweight 3, and cross bar 14 plays a part of the frame of counterweight 3.
Embodiment 4
The scale pan 4 of embodiment 1 or embodiment 2 or embodiment 3 is suspended under crossbeam 2 by load sensor 5, scale pan 4
Bottom is provided with electronic scale 6.
When measuring initial, 3 gross weights of counterweight >=aqueous vapor balancing gate pit 8, it is ensured that the accurate load-bearing of electronic scale 6.
The weight change of aqueous vapor balancing gate pit 8 is measured, the change of gravity can be read by load sensor 5 and electronic scale 6.
According to actual measurement demand, if range is larger, the weight and weight change of corresponding aqueous vapor balancing gate pit 8 are larger；
, can be in the big loading disk 7 of the above-mentioned top of load sensor 5 increase or by adjusting cross bar 14 while strengthening 1 support strength of balance
On the adjustment of weight check weighing of counterweight 3 and balance.
According to field of employment, the bottom of balance 1 can set up pulley, increase mobility, protect said apparatus on the move.
Ease of Use, in the case where ensureing weighing precision, weighing device can select hangable electronic scale, hang title etc..
The basic principles, principal features and advantages of the present invention have been shown and described above.The technical staff of the industry should
Understand, the invention is not limited in any way for above-described embodiment, it is all to be obtained by the way of equivalent substitution or equivalent transformation
Technical scheme, all falls within protection scope of the present invention.
Claims (10)
1. a kind of device for being used to measure the change of triaxial test body, it is characterised in that the top of aqueous vapor balancing gate pit is provided with weighing device；
The liquid storehouse of the aqueous vapor balancing gate pit is connected with triaxial cell, and gas storehouse is connected with source of the gas；The outside of the aqueous vapor balancing gate pit is provided with
Two ends connect the liquid level tube of liquid storehouse and gas storehouse respectively.
2. a kind of device for being used to measure the change of triaxial test body according to claim 1, it is characterised in that the liquid level tube
It is with a scale.
3. a kind of device for being used to measure the change of triaxial test body according to claim 1, it is characterised in that the dress of weighing
Balance is set to, the two ends of balance crossbeam hang measurement loading and aqueous vapor balancing gate pit respectively.
4. a kind of device for being used to measure the change of triaxial test body according to claim 3, it is characterised in that the crossbeam is set
There is the balance dial with pointer.
5. a kind of device for being used to measure the change of triaxial test body according to claim 3, it is characterised in that the balance
Top is provided with protection device, and the protection device is the cross bar that two ends bottom is respectively equipped with gag lever post.
6. it is according to claim 5 it is a kind of be used for measure triaxial test body change device, it is characterised in that the cross bar with
The equalization point connection of balance crossbeam, cross bar is parallel to each other with crossbeam.
7. it is according to claim 5 it is a kind of be used for measure triaxial test body change device, it is characterised in that the cross bar with
Balance support is connected, and cross bar is mutually perpendicular to support.
8. according to a kind of any described devices for being used to measure the change of triaxial test body of claim 5-7, it is characterised in that described
Cross bar is provided with counterweight.
9. a kind of device for being used to measure the change of triaxial test body according to claim 3, it is characterised in that the measurement lotus
Include the scale pan with counterweight again.
10. a kind of device for being used to measure the change of triaxial test body according to claim 9, it is characterised in that the counterweight
Disk is connected by load sensor with crossbeam, and the bottom of scale pan is provided with electronic scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710065602.9A CN107063854B (en) | 2017-02-06 | 2017-02-06 | Device for measuring three-axis test body deformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710065602.9A CN107063854B (en) | 2017-02-06 | 2017-02-06 | Device for measuring three-axis test body deformation |
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| Publication Number | Publication Date |
|---|---|
| CN107063854A true CN107063854A (en) | 2017-08-18 |
| CN107063854B CN107063854B (en) | 2019-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710065602.9A Active CN107063854B (en) | 2017-02-06 | 2017-02-06 | Device for measuring three-axis test body deformation |
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| Country | Link |
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| CN (1) | CN107063854B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108072571A (en) * | 2018-01-30 | 2018-05-25 | 南京工程学院 | A kind of device for being used to measure the change of rock-soil triaxial tests ectosome |
| CN108106940A (en) * | 2018-01-05 | 2018-06-01 | 华侨大学 | A kind of triaxial tests instrument test specimen apparatus for measuring quality |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4502338A (en) * | 1983-05-16 | 1985-03-05 | Iowa State University Research Foundation, Inc. | Triaxial apparatus for testing particulate material and method of using the same |
| US20040244497A1 (en) * | 2001-03-20 | 2004-12-09 | Abdel-Hadi Ali Ismail | Enhanced triaxial tester with volume change device for measurement of flow properties of dry cohesive particulate systems under low confining pressures |
| CN201429442Y (en) * | 2009-07-06 | 2010-03-24 | 长江水利委员会长江科学院 | High-precision measuring device for outer volume change in rock-soil triaxial test |
| CN102175527A (en) * | 2011-01-11 | 2011-09-07 | 中国水利水电科学研究院 | Unsaturated deformation measuring device for dynamic static tri-axial tester |
| CN203069461U (en) * | 2013-01-14 | 2013-07-17 | 桂林理工大学 | Triaxial soil test device under water and soil chemical action |
| CN206488993U (en) * | 2017-02-06 | 2017-09-12 | 南京工程学院 | A kind of device for being used to measure the change of triaxial test body |
-
2017
- 2017-02-06 CN CN201710065602.9A patent/CN107063854B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4502338A (en) * | 1983-05-16 | 1985-03-05 | Iowa State University Research Foundation, Inc. | Triaxial apparatus for testing particulate material and method of using the same |
| US20040244497A1 (en) * | 2001-03-20 | 2004-12-09 | Abdel-Hadi Ali Ismail | Enhanced triaxial tester with volume change device for measurement of flow properties of dry cohesive particulate systems under low confining pressures |
| CN201429442Y (en) * | 2009-07-06 | 2010-03-24 | 长江水利委员会长江科学院 | High-precision measuring device for outer volume change in rock-soil triaxial test |
| CN102175527A (en) * | 2011-01-11 | 2011-09-07 | 中国水利水电科学研究院 | Unsaturated deformation measuring device for dynamic static tri-axial tester |
| CN203069461U (en) * | 2013-01-14 | 2013-07-17 | 桂林理工大学 | Triaxial soil test device under water and soil chemical action |
| CN206488993U (en) * | 2017-02-06 | 2017-09-12 | 南京工程学院 | A kind of device for being used to measure the change of triaxial test body |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108106940A (en) * | 2018-01-05 | 2018-06-01 | 华侨大学 | A kind of triaxial tests instrument test specimen apparatus for measuring quality |
| CN108072571A (en) * | 2018-01-30 | 2018-05-25 | 南京工程学院 | A kind of device for being used to measure the change of rock-soil triaxial tests ectosome |
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| Publication number | Publication date |
|---|---|
| CN107063854B (en) | 2019-12-20 |
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Effective date of registration: 20221018 Address after: Room 619, East Building E1, Nanjing University of Technology Industrial Park, No. 15, Wanshou Road, Jiangpu Street, Jiangbei New District, Nanjing, 210000, Jiangsu Patentee after: NANJING JIOU UNDERGROUND SPACE TECHNOLOGY Co.,Ltd. Address before: 1 No. 211167 Jiangsu city of Nanjing province Jiangning Science Park Hongjing Road Patentee before: NANJING INSTITUTE OF TECHNOLOGY |