CN2660507Y - Rock and soil 3-D state strength testing device - Google Patents
Rock and soil 3-D state strength testing device Download PDFInfo
- Publication number
- CN2660507Y CN2660507Y CN 03262788 CN03262788U CN2660507Y CN 2660507 Y CN2660507 Y CN 2660507Y CN 03262788 CN03262788 CN 03262788 CN 03262788 U CN03262788 U CN 03262788U CN 2660507 Y CN2660507 Y CN 2660507Y
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- triaxial
- axial
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- triaxial chamber
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The utility model relates to a rocks and soils three-dimensional status strength test device, wherein, a lower flange which is connected with or integrated with a worktable through a base is equipped with a triaxial chamber with an upper cover and a laterial pressure chamber communicated with the triaxial chamber. An end part, which is connected with a series cylinder, is arranged under the worktable. A piston rod of the series cylinder is arranged in the axial actuating cylinder inside the triaxial chamber. The axial and radial piston is processed or made with an axial hole and a radial hole communicated with the triaxial chamber and the series cylinder. A lateral actuating cylinder, which is communicated with the laterial pressure chamber, is arranged under the laterial pressure chamber below the worktable. A pillar connected with the base in the triaxial chamber is equipped with an upper beam of which the lower end surface is connected with a force sensor. The force sensor is equipped with an upper pressure head. The end of the piston rod is equipped with a lower pressure head. The utility model has the advantages of data reality, objectivity, precision, etc. The device can test pressure and axial force in the triaxial pressure chamber under various waveforms control, kinetic parameters of rock and soil samples such as dynamic extruding and expansion and mechanical performance parameter under three-dimensional forces.
Description
Technical field
The utility model belongs to the general field of measuring techniques of power or stress, be specifically related to carry out the subsidiary relevant with force measurement or use some relevant therewith equipment.
Background technology
Before the dykes and dams and build river levee and sea wall of building reservoir, at first will be according to the flow velocity of water, water to the dykes and dams of reservoir and to the impulsive force of river levee sea wall, the dykes and dams of reservoir and the pressure of river levee sea wall water that differing heights bears, calculate water outlet to the dykes and dams of reservoir and to the width of the differing heights of river levee sea wall.The at present used measurement rock and the equipment of native intensity adopt the ring of measuring one's own ability to measure axial force, manual record test figure, though the employing force transducer that has, but because of technical reason, can only be arranged on outside the triaxial chamber, advance triaxial chamber and sample one end in contact transmission power by piston rod.Because the existence of piston rod and triaxial chamber loam cake sealing place friction force causes test figure inaccurate, can't revise.In addition, this establishes immobilized spindle power timing signal, can't introduce the influence of triaxial chamber internal pressure, just demarcates axle power under unidirectional state separately, can't reflect the real work situation of force transducer under three-dimensional acting force.In addition, this equipment does not have equal-volume series connection cylinder, directly influences the triaxial chamber internal pressure, can't revise, and the pressure in the triaxial chamber is definite value, can't simulate the dynamics of ground dyke buildings such as inshore, side slope.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the shortcoming of above-mentioned testing equipment, and directly real, objective, accurate rock of a kind of test figure and native three-dimensional state strength test device are provided.
Solving the problems of the technologies described above the technical scheme that is adopted is: be provided with the triaxial chamber of loam cake and the side pressure chamber that links with triaxial chamber by being provided with the top on base and the work All-China Federation of Taiwan Compatriots or the lower flange that is connected as a single entity, have end and the cylinder of connecting its piston rod that links at worktable and be arranged on axial pressurized strut in the triaxial chamber, piston rod axially and radially process or be manufactured with triaxial chamber and axial hole and the radial hole that cylinder links of connecting, the side pressure chamber is arranged with the side direction pressurized strut that links with the side pressure chamber under worktable, be provided with the entablature that the lower surface is connected with force transducer with the joining pillar of base in the triaxial chamber, force transducer is provided with seaming chuck, and the end of piston rod is provided with push-down head.
The aperture of the axial hole of piston rod of the present utility model is 8～20mm, and the sectional area of axial hole is 2 times of radial hole sectional area.
Force transducer of the present utility model directly is placed in the triaxial chamber, overcome of the influence of extraneous factors such as friction force to the axial force measuring accuracy, broken through the technical limitation that force transducer is worked under hydraulic pressure, the interference of zerofriction force, directly measure the sample stressing conditions, improved the degree of accuracy and the objectivity of engineering test.Axial pressurized strut piston rod centre-drilling hole series connection equal-volume cylinder, having solved axial actuator piston moves up and down and influences triaxial chamber inner volume variation issue, promptly cause triaxial chamber internal pressure variation issue, under the situation that the triaxial chamber internal pressure exists, demarcate force transducer, directly reflect the real work situation of force transducer, adapt to the engineering test requirement more, make test figure truer, objective, accurate.The side direction pressurized strut is set up and dynamic control triaxial chamber internal pressure, realize the dynamic control of triaxial chamber internal pressure, has realized the detection of rock, the performance parameter of soil sample under different three-dimensional states.The utility model can be used for testing triaxial chamber internal pressure and the axle power under the dynamic various Waveform Control, also can test the dynamic extruding of rock and soil sample, the dynamics parameter such as bloated of splashing, and the mechanical performance parameter under three-dimensional stress.
Description of drawings
Fig. 1 is the structural representation of an embodiment of the utility model.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described, but the utility model is not limited to these embodiment.
Embodiment 1
In Fig. 1, the rock of present embodiment and native three-dimensional state strength test device are to be connected by loam cake 1, entablature 2, force transducer 3, seaming chuck 4, sample 5, push-down head 6, triaxial chamber 7, piston rod 8, lower flange 9, base 10, worktable 11, axially pressurized strut 12, series connection cylinder 13, side direction pressurized strut 14, side pressure chamber 15, pillar 16 to constitute.
On worktable 11, be connected with base 10 with the screw threads for fastening connector, on base 10 with the screw threads for fastening connector lower flange 9 that has been fixedly connected, on lower flange 9, triaxial chamber 7 is arranged with Bolt Connection, the top of triaxial chamber 7 is connected with loam cake 1, the thread connection that passes on left at worktable 11 has side pressure chamber 15, in triaxial chamber 7, the upper end of two pillars 16 connects with entablature 2 by the screw threads for fastening connector, the lower end links by screw thread and base 10, one end of force transducer 3 is installed in entablature 2 by the screw threads for fastening connector, the other end connects with seaming chuck 4, force transducer 3 directly is placed in the triaxial chamber 7, has overcome the influence of extraneous factors such as friction force to the axial force measuring accuracy.Triaxial chamber 7 times is installed with axial pressurized strut 12 with the screw threads for fastening connector below worktable 11, the piston rod 8 of axial pressurized strut 12 is interspersed with worktable 11 and base 10 enters triaxial chamber 7, on the top of piston rod 8 push-down head 6 is installed, the equal diameters of piston rod 8, during test, the sample 5 of rock and soil is installed between seaming chuck 4 and the push-down head 6, series connection cylinder 13 is installed in the lower end of axially pressurized strut 12, axial centre position at piston rod 8 is processed with axial hole, the top of piston rod 8 radially is processed with radial hole, the aperture of axial hole is 14mm, the aperture of radial hole is 9.90mm, axial hole on the piston rod 8 and radial hole make series connection cylinder 13 link with triaxial chamber 7, axially pressurized strut 12 piston rods, 8 central axial bores and radial hole make triaxial chamber 7 equate with pressure in the series connection cylinder 13, have solved axial pressurized strut 12 piston rods 8 and have moved up and down and influence the interior pressure variation issue of triaxial chamber 7 inner volumes triaxial chamber that variation causes 7.Side pressure chamber 15 times is installed with side direction pressurized strut 14 with the screw threads for fastening connector below worktable 11, side direction pressurized strut 14 links with side pressure chamber 15, side direction pressurized strut 14 is used to control triaxial chamber 7 internal pressures, realize the dynamic control of triaxial chamber 7 internal pressures, realized dynamic extruding under different three-dimensional states of rock and native sample 5, the detection of the dynamics parameter such as bloated of splashing.
In the present embodiment, axially the aperture of piston rod 8 central axial bores of pressurized strut 12 is 8mm, and the aperture of radial hole is 5.66mm, and the connecting relation of other parts and parts is identical with embodiment 1.
Embodiment 3
In the present embodiment, axially the aperture of piston rod 8 central axial bores of pressurized strut 12 is 20mm, and the aperture of radial hole is 14.14mm, and the connecting relation of other parts and parts is identical with embodiment 1.
Principle of work of the present utility model is as follows:
The sample 5 of rock and soil is placed between seaming chuck 4 and the push-down head 6, the sample 5 and the force transducer 3 of rock and soil all place in the airtight triaxial chamber 7, pressure in the triaxial chamber 7 can pass through side direction pressurized strut 14 dynamic regulating and controlling, and triaxial chamber 7 internal pressures are adjusted fast and accurately and controlled.The sample 5 of rock and soil under pressure, sample 5 to rock and soil carries out detection of dynamic, axially the piston rod 8 of pressurized strut 12 moves up and down and makes triaxial chamber 7 internal pressures change, series connection cylinder 13 is linked with the cylinder 13 of connecting by the axial hole and the radial hole of piston rod 8 centers, the equal diameters of piston rod 8, pressure is identical, can not move up and down because of the piston rod 8 of axially pressurized strut 12 triaxial chamber 7 inner volumes to be changed cause that pressure changes.Realize demarcation, measurement under three-dimensional state, reached the purpose of sample 5 Performance Detection under complete realistic working condition requirement condition of rock and soil.
Claims (2)
1, a kind of rock and native three-dimensional state strength test device, it is characterized in that: on the lower flange [9] that joins by base [10] and worktable [11] or be connected as a single entity, be provided with triaxial chamber [7] that the top is provided with loam cake [1] and the side pressure chamber [15] that links with triaxial chamber [7], have end and the cylinder of connecting [13] its piston rod [8] that links at worktable [11] and be arranged on axial pressurized strut [12] in the triaxial chamber [7], piston rod [8] axially and radially process or be manufactured with axial hole and the radial hole that links with triaxial chamber [7] and the cylinder of connecting [13], be arranged with the side direction pressurized strut [14] that links with side pressure chamber [15] in side pressure chamber [15] down at worktable [11], be provided with the entablature [2] that the lower surface is connected with force transducer [3] with the joining pillar of base [10] [16] in the triaxial chamber [7], force transducer [3] is provided with seaming chuck [4], and the end of piston rod [8] is provided with push-down head [6].
2, according to described rock of claim 1 and native three-dimensional state strength test device, it is characterized in that: the aperture of the axial hole of said piston rod [8] is 8～20mm, and the sectional area of axial hole is 2 times of radial hole sectional area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03262788 CN2660507Y (en) | 2003-09-17 | 2003-09-17 | Rock and soil 3-D state strength testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03262788 CN2660507Y (en) | 2003-09-17 | 2003-09-17 | Rock and soil 3-D state strength testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2660507Y true CN2660507Y (en) | 2004-12-01 |
Family
ID=34329426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03262788 Expired - Fee Related CN2660507Y (en) | 2003-09-17 | 2003-09-17 | Rock and soil 3-D state strength testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2660507Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100489492C (en) * | 2005-11-17 | 2009-05-20 | 西安理工大学 | Electrohydraulic servo pressure-torque coupling three-way vibration loading tree-axis instrument |
| CN101042391B (en) * | 2007-04-05 | 2010-08-18 | 同济大学 | Geotechnical engineering physical simulation multifunctional tester with guide frame |
| CN102230931A (en) * | 2011-06-15 | 2011-11-02 | 中国地质大学（武汉） | Dilatometer |
| CN102494954A (en) * | 2011-12-20 | 2012-06-13 | 中国地震局地质研究所 | Device for measuring in high-temperature and high-pressure container |
| CN102798371A (en) * | 2012-08-17 | 2012-11-28 | 四川大学 | Rock volume deformation measuring sensor and rock test-piece volume deformation measuring method |
| CN102798372A (en) * | 2012-08-17 | 2012-11-28 | 四川大学 | Automatic rock volume deformation measuring sensor and rock test-piece volume deformation measuring method |
| CN104634661A (en) * | 2015-02-13 | 2015-05-20 | 武汉科技大学 | Three-dimensional model apparatus for testing rock masses in deep tunnel and using method of testing apparatus |
-
2003
- 2003-09-17 CN CN 03262788 patent/CN2660507Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100489492C (en) * | 2005-11-17 | 2009-05-20 | 西安理工大学 | Electrohydraulic servo pressure-torque coupling three-way vibration loading tree-axis instrument |
| CN101042391B (en) * | 2007-04-05 | 2010-08-18 | 同济大学 | Geotechnical engineering physical simulation multifunctional tester with guide frame |
| CN102230931A (en) * | 2011-06-15 | 2011-11-02 | 中国地质大学（武汉） | Dilatometer |
| CN102230931B (en) * | 2011-06-15 | 2014-04-09 | 中国地质大学（武汉） | Dilatometer |
| CN102494954A (en) * | 2011-12-20 | 2012-06-13 | 中国地震局地质研究所 | Device for measuring in high-temperature and high-pressure container |
| CN102798371A (en) * | 2012-08-17 | 2012-11-28 | 四川大学 | Rock volume deformation measuring sensor and rock test-piece volume deformation measuring method |
| CN102798372A (en) * | 2012-08-17 | 2012-11-28 | 四川大学 | Automatic rock volume deformation measuring sensor and rock test-piece volume deformation measuring method |
| CN102798371B (en) * | 2012-08-17 | 2014-12-10 | 四川大学 | Rock volume deformation measuring sensor and rock test-piece volume deformation measuring method |
| CN102798372B (en) * | 2012-08-17 | 2014-12-10 | 四川大学 | Automatic rock volume deformation measuring sensor and rock test-piece volume deformation measuring method |
| CN104634661A (en) * | 2015-02-13 | 2015-05-20 | 武汉科技大学 | Three-dimensional model apparatus for testing rock masses in deep tunnel and using method of testing apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041201 Termination date: 20110917 |