CN106556536A - A kind of rock triaxial tension and compression experimental rig that can be used in new triaxial test equipment - Google Patents
A kind of rock triaxial tension and compression experimental rig that can be used in new triaxial test equipment Download PDFInfo
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- CN106556536A CN106556536A CN201611020851.8A CN201611020851A CN106556536A CN 106556536 A CN106556536 A CN 106556536A CN 201611020851 A CN201611020851 A CN 201611020851A CN 106556536 A CN106556536 A CN 106556536A
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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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- 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
- G01N2203/0017—Tensile
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- 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
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Abstract
Invention provides a kind of rock triaxial tension and compression experimental rig that can be used in new triaxial test equipment and its using method.The device includes framework I, framework II, connecting plate, pull head I, pull head II and base plate.Framework II is vertically movable, while testing machine vertical pressure to be converted into the vertical tension of sample.In process of the test, sample and pull head are adopted into strength glue and is wrapped up using heat-shrink tube.Then apply confined pressure and vertical tension, after sample destruction, close pilot system immediately.Sample confined pressure is provided by testing machine confined pressure loading system, and vertical tension is provided by the vertical loading system of testing machine.The device to test result is accurate, experimentation cost is low, can carry out the rock tension test under any confined pressure effect, have broad application prospects.
Description
Technical field
The present invention relates to the present invention relates to rock-soil mechanics field, more particularly to one kind can be used in new triaxial test equipment
Rock triaxial tension and compression experimental rig.
Background technology
Under nature, rock mass is typically in three axle Compression Stability states, and during earthquake generation, the propagation of shear wave and compressional wave
Tension can be produced in rock mass.Especially in earth's surface rock mass, such as steep side slope, danger stone etc., due to gravity stress of rock mass it is less,
The stretcher strain that strong earthquakes ripple is produced can be much larger than compression when its original is stablized, and cause to produce along a direction inside which
Larger tension, other directions are still in pressured state.Tension and compression stress rupture is also easy to produce under seismic loading now.Rock
Body has significant difference under the conditions of the features such as the intensity under tension and compression stress, deformation, Crack Extension and triaxial compressions.Therefore
The research of mechanical properties of rock under triaxial tension and compression stress is respectively provided with weight to the following slope stability of earthquake load and preventing land slide
Want meaning.
It is relatively fewer to the experimental study of mechanical properties of rock under triaxial tension and compression stress at present, it is primarily due to existing test
The independent applying of technology tension difficult to realize and compression, the method for carrying out now triaxial tension and compression test mainly have two kinds：1、
Using " dog bone " type sample, sample is in highly pressurised liquid environment, and highly pressurised liquid provides lateral pressure and vertical tension simultaneously；2nd, seal
Injection highly pressurised liquid in space is closed, highly pressurised liquid applies lateral pressure, while giving upper and lower pull head pressure, upper push-down head is vertically moved
It is dynamic that stretching action is produced to sample.However, both approaches are drawn with vertical while providing lateral pressure using highly pressurised liquid
Power, two kinds of power independently cannot apply, in other words, the rock tension and compression that two methods can not be tested under any lateral pressure effect
Matter.
The content of the invention
It is an object of the invention to provide a kind of simple structure, test result are accurate, can carry out the lower rock of any confined pressure effect
The device and its using method of stone tension test, to solve independently cannot to apply lateral pressure and vertical tension in prior art
Problem.
The technical scheme adopted to realize the object of the invention is such, and one kind can be used in new triaxial test equipment
Rock triaxial tension and compression experimental rig, including framework I, framework II, connecting plate, pull head I, pull head II and base plate.
The framework I includes crossbeam I, support column I and support column II.The crossbeam I is connected to support column I and support column II
Between.The crossbeam I, support column I and support column II surround I S of semi-surrounding space.The crossbeam I, support column I and support column II
For an entirety.
There is on I top surface of the crossbeam countersunk head through hole I.
The rectangular opening I through its top bottom surface is provided with the support column I.On the bottom surface of the support column I, removal one is long
Cube A forms breach I.The breach I connects a side of rectangular opening I and support column I.The one outlet of the breach I exists
In I S of semi-surrounding space.The bottom surface of the support column I also has several screwed holes I.
The rectangular opening II through its top bottom surface is provided with the support column II.One is removed on the bottom surface of the support column II
Cuboid B forms breach II.The breach II connects a side of rectangular opening II and support column II.One of the breach II
Outlet is in I S of semi-surrounding space.The bottom surface of the support column II also has several screwed holes II.
The framework II includes crossbeam II, column I and column II.The crossbeam II is connected between column I and column II.
The crossbeam II, column I and column II surround II S of semi-surrounding space.The crossbeam II, column I and column II are an entirety.
There is on II bottom surface of the crossbeam countersunk head through hole II.
There are on the top surface of the column I several screwed holes III.
There are on the top surface of the column II several screwed holes IV.
The connecting plate two ends are ridden upon on the top surface of column I and column II respectively.Have in the plate face of the connecting plate
Several countersunk head through holes III.There is in these countersunk head through holes III hexagon socket head cap screw.These hexagon socket head cap screws pass through countersunk head through hole III
Screw in screwed hole III or screwed hole IV afterwards, connecting plate is fixedly connected with framework II.The upper face of the top board also has
Ball array.
The framework I, framework II and connecting plate constitute sub-assembly.In the sub-assembly, crossbeam I is located at the upper of crossbeam II
Side, connecting plate are located at the top of crossbeam I.In the insertion rectangular opening I of the column I.In the insertion rectangular opening II of the column II.It is described
The two ends of crossbeam II are respectively embedded in breach I and breach II.I S of semi-surrounding space and II S of semi-surrounding space are combined into space
S.The framework II can vertical motion.
The pull head I is rigid cylinder.The upper surface of the pull head I has screwed hole V.The pull head II is rigidity
Cylinder.The lower surface of the pull head II has screwed hole VI.
Sample is a cylinder being placed in space S.The lower surface of pull head I is pasted in the upper surface of this cylinder, under
The upper surface of surface mount pull head II.
The pull head I is connected with crossbeam I by hexagon socket head cap screw, and these hexagon socket head cap screws are screwed in through after countersunk head through hole I
In screwed hole V.The pull head II is connected with crossbeam II by hexagon socket head cap screw, and these hexagon socket head cap screws pass through countersunk head through hole II
Afterwards, screw in screwed hole VI.
There are in the plate face of the base plate several countersunk head through holes IV.There is in the countersunk head through hole IV hexagon socket head cap screw.
These hexagon socket head cap screws are screwed in screwed hole I or screwed hole II through after countersunk head through hole IV, are secured a base plate to below framework I.
The sub-assembly is placed in pressure room.Hydraulic pressure chamber of the balancing gate pit for three-axis tester.The sub-assembly it is upper
Side and lower section are contacted with testing machine loading head I and testing machine loading head II respectively.
The lower end of the testing machine loading head I acts on connecting plate.Shelve base plate in the upper end of the testing machine loading head II.
During test, framework II is moved downward, and drives pull head II to move downward.
Invention additionally discloses a kind of with regard to the above-mentioned rock triaxial tension and compression test dress that can be used in new triaxial test equipment
The using method put, comprises the following steps：
1) by pull head I and pull head II and sample centering.Sample upper and lower surface pastes pull head I and pull head respectively using seccotine
II, form assembly.
2) after seccotine solidifies completely, the assembly is wrapped up using heat-shrink tube.Heat-shrink tube is heated using air-heater.Heat
After shrinkage tube shrinks, assembly surface is attached at.
3) assembly is placed in space S.Pull head I is connected with crossbeam I by hexagon socket head cap screw, pull head II and crossbeam II
Connection.
4) sub-assembly is placed in pressure room, confined pressure is loaded to setting value using testing machine confined pressure loading system.
5) vertical load is applied by testing machine loading head I and testing machine loading head II, until sample is destroyed.Sample is destroyed
Close testing machine loading system afterwards immediately.
Further, the diameter of the upper pull head and lower pull head is identical with specimen finish.
The solution have the advantages that mathematical：
A. simple structure, dependable performance；
B. testing machine vertical pressure is switched to Frame Design the tension of rock sample, simple to operate, it is easy to control；
C. apparatus of the present invention can be used in existing new triaxial test equipment, without the need for being specially equipped with pilot system, significantly dropped
The accurate of result of the test is ensure that while low experimentation cost；
D. the present invention can carry out the rock sample tension test under any confined pressure effect, and axial tension and confined pressure are mutually only
It is vertical.
Description of the drawings
Fig. 1 is test loading schematic diagram；
Fig. 2 is I structural representation of framework；
Fig. 3 is I profile of framework；
Fig. 4 is I upward view of framework；
Fig. 5 is II structural representation of framework；
Fig. 6 is connecting plate top view；
Fig. 7 is assembling unit structure schematic diagram；
Fig. 8 is I structural representation of pull head；
Fig. 9 is II upward view of pull head；
Figure 10 is backing plate upward view.
In figure：I S1 of semi-surrounding space, II S2 of semi-surrounding space, space S, framework I 1, crossbeam I 101, countersunk head through hole I
1011st, support column I 102, rectangular opening I 1021, breach I 1022, screwed hole I 1023, support column II 103, rectangular opening II 1031, lack
Mouthfuls II 1032, screwed hole II 1033, framework II 2, crossbeam II 201, countersunk head through hole II 2011, column I 202, screwed hole III 2021,
Column II 203, screwed hole IV 2031, connecting plate 3, ball array I 301, countersunk head through hole III 302, pull head I 4, screwed hole V 401,
Pull head II 40, screwed hole VI 4001, base plate 5, countersunk head through hole IV 501, sample 6, testing machine loading head I 7, testing machine loading head II
70th, balancing gate pit 8, heat-shrink tube 9.
Specific embodiment
With reference to embodiment, the invention will be further described, but only should not be construed above-mentioned subject area of the invention
It is limited to following embodiments.Without departing from the idea case in the present invention described above, according to ordinary skill knowledge and used
With means, various replacements and change are made, all should be included within the scope of the present invention.
Embodiment 1：
The present embodiment discloses a kind of rock triaxial tension and compression experimental rig that can be used in new triaxial test equipment, including frame
Frame I 1, framework II 2, connecting plate 3, pull head I 4, pull head II 40 and base plate 5.
Referring to Fig. 2, Fig. 3 and Fig. 4, the framework I 1 includes crossbeam I 101, support column I 102 and support column II 103.It is described
Crossbeam I 101 is connected between support column I 102 and support column II 103, and three upper surface is concordant.The crossbeam I 101, support column I
102 and support column II 103 surround I S1 of semi-surrounding space.The crossbeam I 101, support column I 102 and support column II 103 are one
It is overall.
There is on I 101 top surface of the crossbeam countersunk head through hole I 1011.There is in the countersunk head through hole I 1011 interior hexagonal spiral shell
Bolt.
The rectangular opening I 1021 through its top bottom surface is provided with the support column I 102.On the bottom surface of the support column I 102
Remove a cuboid A and form breach I 1022.The breach I 1022 connects a side of rectangular opening I 1021 and support column I 102
Face.The one outlet of the breach I 1022 is in I S1 of semi-surrounding space.The bottom surface of the support column I 102 also has several
Screwed hole I 1023.
The rectangular opening II 1031 through its top bottom surface is provided with the support column II 103.The bottom surface of the support column II 103
It is upper to remove a cuboid B formation breach II 1032.The breach II 1032 connects rectangular opening II 1031 and support column II 103
One side.The one outlet of the breach II 1032 is in I S1 of semi-surrounding space.The bottom surface of the support column II 103 also has
There are several screwed holes II 1033.
Referring to Fig. 5, the framework II 2 includes crossbeam II 201, column I 202 and column II 203.The crossbeam II 201 connects
It is connected between column I 202 and column II 203, three bottom surface is concordant.The crossbeam II 201, column I 202 and column II 203 are closed
Enclose II S2 of semi-surrounding space.The crossbeam II 201, column I 202 and column II 203 are an entirety.
There is on II 201 bottom surface of the crossbeam countersunk head through hole II 2011.There is in the countersunk head through hole II 2011 interior hexagonal
Bolt.
There are on the top surface of the column I 202 several screwed holes III 2021.
There are on the top surface of the column II 203 several screwed holes IV 2031.
Referring to Fig. 6,3 two ends of the connecting plate are ridden upon on the top surface of column I 202 and column II 203 respectively.The connection
Plate 3 and framework II 2 constitute hollow.There are in the plate face of the connecting plate 3 several countersunk head through holes III 302.These countersunk heads lead to
There is in hole III 302 hexagon socket head cap screw.The hexagon socket head cap screw screws in screwed hole III 2021 or spiral shell through after countersunk head through hole III 302
In pit IV 2031, connecting plate 3 is fixedly connected with framework II 2.The upper face of the top board 3 also has ball array 301.
Ball in the ball array 301 is free to rotate.
Referring to Fig. 7, the framework I 1, framework II 2 and connecting plate 3 constitute sub-assembly.In the sub-assembly, I 101, crossbeam
In the top of crossbeam II 201, connecting plate 3 is located at the top of crossbeam I 101.In the insertion rectangular opening I 1021 of the column I 202.Institute
State in the insertion rectangular opening II 1031 of column II 203.The two ends of the crossbeam II 201 are respectively embedded into breach I 1022 and breach II
In 1032.I S1 of semi-surrounding space and II S2 of semi-surrounding space are combined into space S.The sectional dimension of the column I 202 with
The sectional dimension of rectangular opening I 1021 matches, the sectional dimension of column II 203 and the sectional dimension phase of rectangular opening II 1031
Match somebody with somebody.The sectional dimension of the rectangular opening I 1021 is identical with the sectional dimension of rectangular opening II 1031.The framework II 2 vertically can be transported
It is dynamic.
Referring to Fig. 8 and Fig. 9, the pull head I 4 is rigid cylinder.The upper surface of the pull head I 4 has screwed hole V
401.The pull head II 40 is rigid cylinder.The lower surface of the pull head II 40 has screwed hole VI 4001.
Sample 6 is a cylinder being placed in space S.The lower surface of pull head I 4 is pasted in the upper surface of this cylinder,
Lower surface pastes the upper surface of pull head II 40.
Referring to Fig. 1, the pull head I 4 is connected with crossbeam I 101 by hexagon socket head cap screw, and these hexagon socket head cap screws pass through countersunk head
After through hole I 1011, screw in screwed hole V 401.The pull head II 40 is connected with crossbeam II 201 by hexagon socket head cap screw, these
Hexagon socket head cap screw is screwed in screwed hole VI 4001 through after countersunk head through hole II 2011.
Referring to Figure 10, there are in the plate face of the base plate 5 several countersunk head through holes IV 501.In these countersunk head through holes IV 501
With hexagon socket head cap screw.The hexagon socket head cap screw screws in screwed hole I 1016 or screwed hole II 1026 through after countersunk head through hole IV 501
In, base plate 5 is fixed on below framework I 1.
Referring to Fig. 1, the sub-assembly is placed in balancing gate pit 8.Hydraulic pressure chamber of the balancing gate pit 8 for three-axis tester.It is described
Highly pressurised liquid is full of in balancing gate pit 8.Highly pressurised liquid provides lateral pressure.Above and below the sub-assembly respectively with testing machine
Loading head I 7 and testing machine loading head II 70 are contacted.
The lower end of the testing machine loading head I 7 acts on connecting plate 3.Shelve the upper end of the testing machine loading head II 70
Base plate 5.
When being tested, framework II 2 is moved downward.Crossbeam II 201 drives pull head II 40 to move downward.Crossbeam II 201
Apply downward power to pull head II 40, I 101 pairs of pull heads I 4 of crossbeam apply power upwards.Further, I 4 pairs of samples 6 of pull head produce to
On pulling force, II 40 pairs of samples 6 of pull head produce downward pulling force.So, just by testing machine loading head I 7 and testing machine loading head
The pressure that II 70 pairs of frameworks I and framework II 2 apply is converted into the pulling force that II 40 pairs of samples 6 of pull head I 4 and pull head apply.
Embodiment 2：
The present embodiment discloses a kind of rock triaxial tension and compression with regard to using in new triaxial test equipment described in embodiment 1
The using method of experimental rig, comprises the following steps：
1) by pull head I 4 and pull head II 40 and 6 centering of sample.6 upper and lower surface of sample pastes pull head I 4 respectively using seccotine
With pull head II 40, assembly is formed.Wherein, the diameter of the upper pull head 4 and lower pull head 40 is identical with 6 diameter of sample.
2) after seccotine solidifies completely, the assembly is wrapped up using heat-shrink tube 9.Heat-shrink tube 9 is heated using air-heater.
After heat-shrink tube 9 shrinks, assembly surface is attached at.
3) assembly is placed in space S.Pull head I 4 is connected with crossbeam I 101 by hexagon socket head cap screw, pull head II 40 with
Crossbeam II 201 connects.
4) sub-assembly is placed in balancing gate pit 8, confined pressure is loaded to setting value using testing machine confined pressure loading system.
5) vertical load is applied by testing machine loading head I 7 and testing machine loading head II 70, framework II 2 moves downward band
I 4 vertical motion of dynamic pull head, so as to apply pulling force to sample 6, until sample 6 is destroyed.Sample 6 closes testing machine after destroying immediately
Loading system.
Claims (3)
1. a kind of rock triaxial tension and compression experimental rig that can be used in new triaxial test equipment, it is characterised in that including framework I
(1), framework II (2), connecting plate (3), pull head I (4), pull head II (40) and base plate (5)；
The framework I (1) includes crossbeam I (101), support column I (102) and support column II (103)；The crossbeam I (101) connects
Between support column I (102) and support column II (103)；The crossbeam I (101), support column I (102) and support column II (103)
Surround semi-surrounding space I (S1)；The crossbeam I (101), support column I (102) and support column II (103) are an entirety；
There is on I (101) top surface of the crossbeam countersunk head through hole I (1011)；
The rectangular opening I (1021) through its top bottom surface is provided with the support column I (102)；The bottom surface of the support column I (102)
It is upper to remove cuboid (A) formation breach I (1022)；The breach I (1022) connects rectangular opening I (1021) and support column I
(102) a side；The one outlet of the breach I (1022) is in semi-surrounding space I (S1)；The support column I (102)
Bottom surface also have several screwed holes I (1023)；
The rectangular opening II (1031) through its top bottom surface is provided with the support column II (103)；The bottom of the support column II (103)
A cuboid (B) is removed on face and forms breach II (1032).The breach II (1032) connects rectangular opening II (1031) and props up
One side of dagger II (103)；The one outlet of the breach II (1032) is in semi-surrounding space I (S1)；The support
The bottom surface of post II (103) also has several screwed holes II (1033)；
The framework II (2) includes crossbeam II (201), column I (202) and column II (203)；The crossbeam II (201) connects
Between column I (202) and column II (203)；The crossbeam II (201), column I (202) and column II (203) surround Ban Bao
Confining space II (S2)；The crossbeam II (201), column I (202) and column II (203) are an entirety；
There is on II (201) bottom surface of the crossbeam countersunk head through hole II (2011)；
There are on the top surface of the column I (202) several screwed holes III (2021)；
There are on the top surface of the column II (203) several screwed holes IV (2031)；
Connecting plate (3) two ends are ridden upon on the top surface of column I (202) and column II (203) respectively；The connecting plate (3)
Plate face on have several countersunk head through holes III (302)；There is in these countersunk head through holes III (302) hexagon socket head cap screw；In these
Hex bolts is screwed in screwed hole III (2021) or screwed hole IV (2031) afterwards through countersunk head through hole III (302), by connecting plate (3)
It is fixedly connected with framework II (2)；The upper face of the top board (3) also has ball array (301)；
The framework I (1), framework II (2) and connecting plate (3) constitute sub-assembly；In the sub-assembly, crossbeam I (101) is positioned at horizontal stroke
The top of beam II (201), connecting plate (3) is positioned at the top of crossbeam I (101)；The column I (202) inserts rectangular opening I (1021)
In；In the insertion rectangular opening II (1031) of the column II (203)；The two ends of the crossbeam II (201) are respectively embedded into breach I
(1022) and in breach II (1032)；The semi-surrounding space I (S1) and semi-surrounding space II (S2) are combined into space (S)；Institute
Stating framework II (2) can vertical motion；
The pull head I (4) is rigid cylinder；The upper surface of the pull head I (4) has screwed hole V (401)；The pull head II
(40) it is rigid cylinder；The lower surface of the pull head II (40) has screwed hole VI (4001)；
The sample (6) is a cylinder being placed in space (S)；Paste under pull head I (4) upper surface of this cylinder
The upper surface of pull head II (40) is pasted on surface, lower surface；
The pull head I (4) is connected with crossbeam I (101) by hexagon socket head cap screw, and these hexagon socket head cap screws pass through countersunk head through hole I
(1011), after, screw in screwed hole V (401)；The pull head II (40) is connected with crossbeam II (201) by hexagon socket head cap screw, this
A little hexagon socket head cap screws are screwed in screwed hole VI (4001) through after countersunk head through hole II (2011)；
There are in the plate face of the base plate (5) several countersunk head through holes IV (501)；Have in the countersunk head through hole IV (501) interior
Hex bolts；These hexagon socket head cap screws screw in screwed hole I (1016) or screwed hole II (1026) afterwards through countersunk head through hole IV (501)
In, base plate (5) is fixed on below framework I (1)；
The sub-assembly is placed in balancing gate pit (8)；Hydraulic pressure chamber of the balancing gate pit (8) for three-axis tester；The sub-assembly
Above and below contact with testing machine loading head I (7) and testing machine loading head II (70) respectively；
The lower end of the testing machine loading head I (7) acts on connecting plate (3)；Put the upper end of the testing machine loading head II (70)
Bottom set plate (5)；
During test, framework II (2) is moved downward, and drives pull head II (40) to move downward.
2. a kind made from regard to the rock triaxial tension and compression experimental rig that can use in new triaxial test equipment described in claim 1
With method, it is characterised in that：Comprise the following steps：
1) by pull head I (4) and pull head II (40) and sample (6) centering；Sample (6) upper and lower surface pastes drawing respectively using seccotine
I (4) with pull head II (40), form assembly；
2) after seccotine solidifies completely, the assembly is wrapped up using heat-shrink tube (9)；Using air-heater heating heat-shrink tube (9)；
After heat-shrink tube (9) shrinks, assembly surface is attached at；
3) assembly is placed in space (S)；Pull head I (4) is connected with crossbeam I (101) by hexagon socket head cap screw, pull head II
(40) it is connected with crossbeam II (201)；
4) sub-assembly is placed in balancing gate pit (8), confined pressure is loaded to setting value using testing machine confined pressure loading system；
5) vertical load is applied by testing machine loading head I (7) and testing machine loading head II (70), until sample (6) is destroyed；Examination
Testing machine loading system is closed immediately after sample (6) destruction.
3. a kind of rock triaxial tension and compression experimental rig that can be used in new triaxial test equipment according to claim 2
Using method, it is characterised in that：The diameter of the upper pull head (4) and lower pull head (40) is identical with sample (6) diameter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611020851.8A CN106556536B (en) | 2016-11-14 | 2016-11-14 | A kind of rock triaxial tension and compression experimental rig that can be used in new triaxial test equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611020851.8A CN106556536B (en) | 2016-11-14 | 2016-11-14 | A kind of rock triaxial tension and compression experimental rig that can be used in new triaxial test equipment |
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| CN106556536A true CN106556536A (en) | 2017-04-05 |
| CN106556536B CN106556536B (en) | 2019-01-29 |
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| CN107478513A (en) * | 2017-08-14 | 2017-12-15 | 西安理工大学 | Test method based on the axle bursting stress path of the soil body under the conditions of negative confined pressure three |
| CN108303310A (en) * | 2018-02-07 | 2018-07-20 | 成都理工大学 | Rock ordinary triaxial test test specimen sealing device and its application method |
| CN109752234A (en) * | 2019-02-27 | 2019-05-14 | 河北工业大学 | A kind of rock type materials biaxial tension test experimental rig of the real-time centering of draw direction |
| CN110542616A (en) * | 2019-09-24 | 2019-12-06 | 中国工程物理研究院化工材料研究所 | Active confining pressure test system suitable for explosive and solid propellant material |
| CN112198052A (en) * | 2020-09-29 | 2021-01-08 | 河北工业大学 | Method for calculating tensile strength of rock under confining pressure condition and application |
| CN112198055A (en) * | 2020-10-13 | 2021-01-08 | 重庆交通大学 | Rock degradation testing device under dynamic water-stress coupling effect and testing method thereof |
| CN112881199A (en) * | 2021-01-14 | 2021-06-01 | 东北大学 | Three-dimensional direct shear test device and method for mechanical property research of hard rock structural surface |
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| CN107478513A (en) * | 2017-08-14 | 2017-12-15 | 西安理工大学 | Test method based on the axle bursting stress path of the soil body under the conditions of negative confined pressure three |
| CN107478513B (en) * | 2017-08-14 | 2020-04-10 | 西安理工大学 | Test method based on triaxial failure stress path of soil body under negative confining pressure condition |
| CN108303310A (en) * | 2018-02-07 | 2018-07-20 | 成都理工大学 | Rock ordinary triaxial test test specimen sealing device and its application method |
| CN109752234A (en) * | 2019-02-27 | 2019-05-14 | 河北工业大学 | A kind of rock type materials biaxial tension test experimental rig of the real-time centering of draw direction |
| CN110542616A (en) * | 2019-09-24 | 2019-12-06 | 中国工程物理研究院化工材料研究所 | Active confining pressure test system suitable for explosive and solid propellant material |
| CN112198052A (en) * | 2020-09-29 | 2021-01-08 | 河北工业大学 | Method for calculating tensile strength of rock under confining pressure condition and application |
| CN112198052B (en) * | 2020-09-29 | 2022-07-12 | 河北工业大学 | Method for calculating tensile strength of rock under confining pressure condition and application |
| CN112198055A (en) * | 2020-10-13 | 2021-01-08 | 重庆交通大学 | Rock degradation testing device under dynamic water-stress coupling effect and testing method thereof |
| CN112198055B (en) * | 2020-10-13 | 2022-12-30 | 重庆交通大学 | Rock degradation testing device under dynamic water-stress coupling effect and testing method thereof |
| CN112881199A (en) * | 2021-01-14 | 2021-06-01 | 东北大学 | Three-dimensional direct shear test device and method for mechanical property research of hard rock structural surface |
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