CN106769402B - Sampling device and application method are unloaded in a kind of rocks ordinary triaxial test - Google Patents
Sampling device and application method are unloaded in a kind of rocks ordinary triaxial test Download PDFInfo
- Publication number
- CN106769402B CN106769402B CN201611120564.4A CN201611120564A CN106769402B CN 106769402 B CN106769402 B CN 106769402B CN 201611120564 A CN201611120564 A CN 201611120564A CN 106769402 B CN106769402 B CN 106769402B
- Authority
- CN
- China
- Prior art keywords
- casing
- compression leg
- chassis
- sample
- fixator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- 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
-
- 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
- G01N2203/02—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
Abstract
The present invention provides a kind of rocks ordinary triaxial test and unloads sampling device and application method, belong to geotechnical engineering experimental field, including stand, compression leg, casing, chassis and fixator, the stand includes steel loop, fixed frame and support rod, the stand is inserted in the slot on chassis, and the compression leg is steel column of the front end with hard rubber pressure pad, and the casing is the rubber casing of bottom end closure, the chassis is the steel plate with slot, and the fixator is inserted in the screw hole of fixed frame.In addition, the present invention also provides the application methods of the device.Apparatus structure of the present invention is simple, easy to use;The integrality being removed after sample destroys can be effectively protected in device of the present invention.
Description
Technical field
The invention belongs to geotechnical engineering experimental field, it is related to a kind of rocks ordinary triaxial test and unloads sampling device and user
Method.
Background technique
The indoor ordinary triaxial test of rocks sample is the extremely important and conventional experiment of geotechnical engineering experimental field.When
It is preceding to have had ordinary triaxial test system in more complete rocks sample chamber both at home and abroad, size, examination from sample
The mode etc. of the type, load tested has more complete reasonable specification.But after the work of dress sample and test before testing
Unloading sample work is all very complicated complexity, unloads sample work after especially testing.Due to needing completely to take out examination after test
The sample destroyed after testing is taken pictures and is saved, sample destroy after can all have large volume of expansion, due to sample elasticity compared with
It is small, it is destroyed when in the thicker rubber sleeve of thickness, being often stuck in rubber sleeve and can not take out because circumferential deformation is larger, or taking out
The rubber sleeve to involve great expense, and spend very big energy and longer time.For this reason, it may be necessary to there is one kind quick, convenient, simple
Single survey unloads sampling device and method to solve problems.
Summary of the invention
The present invention provides a kind of rocks normal triaxial to solve drawbacks described above and deficiency existing in the prior art
Sampling device and its application method are unloaded in test,.
In order to solve the above technical problems, the present invention, which provides a kind of rocks ordinary triaxial test, unloads sampling device, including stand,
Compression leg, casing, chassis and fixator;The stand includes steel loop, fixed frame and support rod, and the stand is inserted in the slot on chassis
Interior, the compression leg is steel column of the front end with hard rubber pressure pad, and the casing is the rubber casing of bottom end closure, the chassis
For the steel plate with slot, the fixator is inserted in fixed frame.
Further, the stand includes steel loop, fixed frame and support rod, the steel loop be it is hollow, there are three folders on outer ring
The fixed frame that the support rod and four angles that angle is 90 degree are 90 degree.
Further, three support rods of the stand are inserted in three slots on chassis.
Further, there are 2 screw holes on each fixator, there is a fixator in each screw hole.
Further, the compression leg is the cylindrical steel column that diameter is slightly less than steel loop internal diameter, length about 10cm shorter than support rod,
The compression leg front end is slightly larger than the rubber press pad of compression leg diameter with a diameter.
Further, the casing is cylinder-shaped rubber sleeve only open at one end, and internal diameter is more bigger than the internal diameter of sample.
Further, the chassis is rigid material, can be cylinder, square column or polygon prism, above there is insert matched with support rod
Slot.
Further, the fixator front end is the Rubber end of semielliptical type, and centre is threaded steel column, and rear end is six sides
Shape nut.
The present invention also provides the application methods that a kind of rocks normal triaxial unloads sampling device, which is characterized in that including following
Step:
Step 1 first twists fixator outward, so that steel loop about 3-5mm is left in fixator end, compression leg is mentioned upwards
To top;
The sample finished and rubber sleeve are lifted down from triaxial apparatus, the upper end of rubber sleeve are inserted under steel loop by step 2
End, and pressure pad is made to enter rubber sleeve and sample upper-end contact;
8 fixators are inwardly tightened, and casing are put into chassis middle position by step 3, and sample is fallen into
In casing;
Step 4 taps compression leg upper end with hammer, compression leg is slowly knocked in rubber sleeve, until sample is fallen into casing;
Step 5 after sample falls into casing, sample is taken out, and fixator is unscrewed out of casing, removes rubber
Set.
Compared with the existing technology, present invention advantageous effects achieved are as follows: one kind (class) rock provided by the invention
Sampling device is unloaded in ordinary triaxial test, can be with the simple and convenient quick sample set for realizing rocks ordinary triaxial test using the device
Separation, and only need one man operation, it is no longer necessary to more people together often scratch by separation test and rubber sleeve, conventional method
Hand, and destroy integrality when sample takes out.Pressure pad and casing of the invention can be effectively protected after sample destroys and be removed
Integrality.In addition, this method is easy to operate the present invention also provides the application method for unloading sampling device, it is easy to use.
Detailed description of the invention
Fig. 1 schematic structural view of the invention;
Fig. 2 top schematic diagram of the present invention;
Fig. 3 casing schematic diagram of the present invention;
Fig. 4 compression leg schematic diagram of the present invention;
Fig. 5 fixator schematic diagram of the present invention;
Fig. 6 chassis schematic diagram of the present invention;
Fig. 7 is three-dimensional structure diagram of the invention;
Wherein: 1 stand;101 steel loops;102 fixed frames;103 support rods;2 compression legs;201 pressure pads;3 casings;4 chassis;401
Slot;5 fixators.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention
Technical solution, and not intended to limit the protection scope of the present invention.
As shown in figs. 1-7, the present invention provides one kind (class) rock ordinary triaxial test and unloads sampling device, including stand 1, compression leg
2, casing 3, chassis 4 and fixator 5;The stand includes steel loop 101, fixed frame 102 and support rod 103, and the stand is inserted in
In the slot 401 on chassis, the compression leg is steel column of the front end with hard rubber pressure pad 201, and the casing is bottom end closure
Rubber casing, the chassis are the steel plate with slot, and the fixator is inserted in the screw hole of fixed frame.
The stand includes steel loop, fixed frame and support rod, and it there are three angle is 90 degree on outer ring that the steel loop, which is hollow,
Support rod and four angles be 90 degree fixed frame.Three support rods of the stand are inserted in three slots on chassis.Institute
Stating has 2 screw holes on each fixator, there is a fixator in each screw hole.The compression leg be diameter be slightly less than steel loop internal diameter,
The cylindrical steel column of length about 10cm shorter than support rod, the compression leg front end are slightly larger than the rubber of compression leg diameter with a diameter
Pressure pad.The casing is cylinder-shaped rubber sleeve only open at one end, and internal diameter is more bigger than the internal diameter of sample.The chassis is rigidity material
Material can be cylinder, square column or polygon prism, above there is slot matched with support rod.The fixator front end is the rubber of semielliptical type
Rubber head, centre are threaded steel column, and rear end is hex nut.
The present invention also provides the application methods that sampling device is unloaded in one kind (class) rock ordinary triaxial test, which is characterized in that packet
Include following steps:
Step 1 first twists fixator outward, so that steel loop about 3-5mm is left in fixator end, compression leg is mentioned upwards
To top;
The sample finished and rubber sleeve are lifted down from triaxial apparatus, the upper end of rubber sleeve are inserted under steel loop by step 2
End, and pressure pad is made to enter rubber sleeve and sample upper-end contact;
8 fixators are inwardly tightened, and casing are put into chassis middle position by step 3, and sample is fallen into
In casing;
Step 4 taps compression leg upper end with hammer, compression leg is slowly knocked in rubber sleeve, until sample is fallen into casing;
Step 5 after sample falls into casing, sample is taken out, and fixator is unscrewed out of casing, removes rubber
Set.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (5)
1. sampling device is unloaded in a kind of rocks ordinary triaxial test, it is characterised in that: including stand, compression leg, casing, chassis and fixation
Device;The stand includes steel loop, fixed frame and support rod, and the stand is inserted in the slot on chassis, and the compression leg is front end band
The steel column of hard rubber pressure pad, the casing are the rubber casing of bottom end closure, and the chassis is the steel plate with slot, the fixation
Device is inserted in fixed frame;The steel loop is support rod and four angles hollow, that outer ring three angles of connection of steel loop are 90 degree
For 90 degree of fixed frame;The compression leg is the cylindrical steel column that diameter is slightly less than steel loop internal diameter, length about 10cm shorter than support rod,
The compression leg front end is slightly larger than the rubber press pad of compression leg diameter with a diameter;The casing is only open at one end
Cylinder-shaped rubber sleeve, internal diameter are more bigger than the internal diameter of sample;The fixator front end is the Rubber end of semielliptical type, and centre is band spiral shell
The steel column of line, rear end are hex nut.
2. sampling device is unloaded in a kind of rocks ordinary triaxial test according to claim 1, it is characterised in that: the stand
Three support rods are inserted in three slots on chassis.
3. sampling device is unloaded in a kind of rocks ordinary triaxial test according to claim 2, it is characterised in that: each fixed frame
On have 2 screw holes, each screw hole is provided with a fixator.
4. sampling device is unloaded in a kind of rocks ordinary triaxial test according to claim 3, it is characterised in that: the chassis is
Rigid material, is cylinder, square column or polygon prism, and upper end is equipped with slot matched with support rod.
5. the application method of sampling device is unloaded in a kind of rocks ordinary triaxial test according to claim 1-4,
It is characterized in that, comprising the following steps:
Step 1 first twists fixator outward, so that steel loop 3-5mm is left in fixator end, compression leg is mentioned to top upwards;
The sample finished and rubber sleeve are lifted down from triaxial apparatus, the upper end of rubber sleeve are inserted in the lower end of steel loop by step 2, and
Pressure pad is set to enter rubber sleeve and sample upper-end contact;
Fixator is inwardly tightened, and casing is put into chassis middle position by step 3, and sample is fallen into casing;
Step 4 taps compression leg upper end with hammer, compression leg is slowly knocked in rubber sleeve, until sample is fallen into casing;
Step 5 after sample falls into casing, sample is taken out, and fixator is unscrewed out of casing, removes rubber sleeve.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201611120564.4A CN106769402B (en) | 2016-12-08 | 2016-12-08 | Sampling device and application method are unloaded in a kind of rocks ordinary triaxial test |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201611120564.4A CN106769402B (en) | 2016-12-08 | 2016-12-08 | Sampling device and application method are unloaded in a kind of rocks ordinary triaxial test |
Publications (2)
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CN106769402A CN106769402A (en) | 2017-05-31 |
CN106769402B true CN106769402B (en) | 2019-08-06 |
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Families Citing this family (4)
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CN109507076B (en) * | 2017-09-15 | 2021-04-23 | 中国石油化工股份有限公司 | Visual nesting device and experimental method for experimental sample for testing flow conductivity |
CN108267350B (en) * | 2018-03-13 | 2019-12-31 | 北京航空航天大学 | Test piece for researching influence of integrity of machined surface on tensile and compressive fatigue performance of part |
CN108627379B (en) * | 2018-05-16 | 2023-12-19 | 三峡大学 | Rock triaxial test rock sample stripper |
CN109916722A (en) * | 2019-04-22 | 2019-06-21 | 东北大学 | A kind of double-layer concentric loading frame structure suitable for true triaxial test machine |
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CN102901660A (en) * | 2012-10-16 | 2013-01-30 | 绍兴文理学院 | Rotary rod type three-shaft sample preparation device and sample preparation method thereof |
CN102914459A (en) * | 2012-10-16 | 2013-02-06 | 绍兴文理学院 | Hydraulic tri-axial sample preparation device and sampling method thereof |
CN103900877A (en) * | 2014-03-21 | 2014-07-02 | 浙江水利水电学院 | Preparation device for three-axis compression test original-state sample and preparation method of preparation device |
CN205393909U (en) * | 2016-03-01 | 2016-07-27 | 迪尔集团有限公司 | High -efficient positioner |
CN105890975A (en) * | 2016-06-19 | 2016-08-24 | 中国科学院寒区旱区环境与工程研究所 | Supporting frame of triaxial frozen earth loading device for medical CT (computed tomography) |
-
2016
- 2016-12-08 CN CN201611120564.4A patent/CN106769402B/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102901660A (en) * | 2012-10-16 | 2013-01-30 | 绍兴文理学院 | Rotary rod type three-shaft sample preparation device and sample preparation method thereof |
CN102914459A (en) * | 2012-10-16 | 2013-02-06 | 绍兴文理学院 | Hydraulic tri-axial sample preparation device and sampling method thereof |
CN103900877A (en) * | 2014-03-21 | 2014-07-02 | 浙江水利水电学院 | Preparation device for three-axis compression test original-state sample and preparation method of preparation device |
CN205393909U (en) * | 2016-03-01 | 2016-07-27 | 迪尔集团有限公司 | High -efficient positioner |
CN105890975A (en) * | 2016-06-19 | 2016-08-24 | 中国科学院寒区旱区环境与工程研究所 | Supporting frame of triaxial frozen earth loading device for medical CT (computed tomography) |
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Granted publication date: 20190806 Termination date: 20211208 |