CN103207114A - Three-way rigid load rock true triaxial apparatus - Google Patents
Three-way rigid load rock true triaxial apparatus Download PDFInfo
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- CN103207114A CN103207114A CN201310073709XA CN201310073709A CN103207114A CN 103207114 A CN103207114 A CN 103207114A CN 201310073709X A CN201310073709X A CN 201310073709XA CN 201310073709 A CN201310073709 A CN 201310073709A CN 103207114 A CN103207114 A CN 103207114A
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Abstract
The invention discloses a three-way rigid load rock true triaxial apparatus which is characterized in that the three-way rigid load rock true triaxial apparatus comprise a triaxial pressure cell and a true triaxial rock specimen sheath; the triaxial pressure cell comprises a base, a coaming and an upper cover which are arranged on the base; the true triaxial rock specimen sheath is arranged inside the coaming, is of a cube or a cuboid shape, and is used for six-side covering a rock specimen in a shape of a cube or a cuboid; the true triaxial rock specimen sheath comprises six side rigid-flexible-mixed pressing piece bodies, each rigid-flexible-mixed pressing piece body comprises a plurality of arrayed cube rigid blocks and elastic sheets in Z shapes, and every two adjacent cube rigid blocks are connected with each other through one elastic sheet; and an upper pressing plate is arranged on the outer pressing face of the true triaxial rock specimen sheath, and a lateral-direction pressing plate 1 and a lateral-direction pressing plate 2 are arranged on the outer wall faces of adjacent two side walls of the true triaxial rock specimen sheath. The three-way rigid load rock true triaxial apparatus has the advantages of simple structure, low cost and the like, three-way load can be applied, and various testing can be performed on a large-size specimen.
Description
Technical field
The present invention relates to the rock mass engineering project technical field, especially a kind of true three-axial compression test apparatus that provides three-dimensional not wait rigidity to load.
Background technology
In the actual rock mass engineering project, the rock that is in the complex three-dimensional stress field generally is in the shear stress state of pressing.Under the effect of pressing shear stress, micro-crack extension, connection, perforation that the destruction of rock distributes in the rock material structure often cause.The normal triaxial pressure test has been studied the influence of confined pressure to rock deformation and destruction, and intermediate principal stress all is one of advanced subject of rock mass engineering project field exploration to the influence of rock deformation strength characteristics all the time under the anisobaric triaxial stress state.
Summary of the invention
Task of the present invention is to provide a kind of three-dimensional rigidity to load the rock true triaxil tester.
Its technical solution is:
A kind of three-dimensional rigidity loads the rock true triaxil tester, comprises triaxial pressure box and true three rock sample overcoats; Above-mentioned triaxial pressure box comprises pedestal, be positioned at the coaming plate on the pedestal and be positioned at the loam cake at coaming plate top; Above-mentioned true three rock samples are placed in the coaming plate outward, be cube or rectangular parallelepiped, be used for six faces and enclose the rock sample that bag is cube or rectangular parallelepiped, above-mentioned true three rock sample overcoats comprise six hard and soft mixing pressurization lamellar bodies, the flexure strip that each hard and soft mixing pressurization lamellar body comprises the cube rigidity piece that some one-tenth formations are arranged and is similar to " it " font, every adjacent a pair of cube rigidity piece is linked to each other by a flexure strip; Increased pressure board above the outer end face of true three rock sample overcoats is provided with, the outside wall surface in its a certain adjacent two side are respectively arranged with side direction increased pressure board one and side direction increased pressure board two.
Above-mentioned three-dimensional rigidity loads the rock true triaxil tester and comprises servo rigid pressurized system one, servo rigid pressurized system two and servo rigid pressurized system three; Wherein, servo rigid pressurized system one comprises pressure cylinder one, and servo rigid pressurized system two comprises pressure cylinder two, and servo rigid pressurized system three comprises pressure cylinder three.
The central part of above-mentioned loam cake offers the top notch, and the top that links to each other with top increased pressure board pressurization cushion block stretches out from the top notch, and top pressurization cushion block is connected with the piston rod of pressure cylinder one; The central part of a certain volar plate of above-mentioned coaming plate offers side direction notch one, the side direction pressurization cushion block one that links to each other with side direction increased pressure board one stretches out from side direction notch one, side direction pressurization cushion block one is connected with the piston rod of pressure cylinder two, the central part of the side plate piece adjacent with this a certain volar plate offers side direction notch two, the side direction pressurization cushion block two that links to each other with side direction increased pressure board two stretches out from side direction notch two, and side direction pressurization cushion block two is connected with the piston rod of pressure cylinder three.
Above-mentioned true three rock sample overcoats, the docking site between its each adjacent hard and soft mixing pressurization lamellar body bonds together by seccotine.
The present invention has following useful technique effect:
The present invention uses rigid plate that rock sample is pressurizeed at above-below direction, pressure is added on the rock sample by the cube rigidity piece of the hard and soft mixing pressurization in sample top lamellar body equably, when sample vertical direction generation compression deformation, the hard and soft mixing pressurization lamellar body of sample all around is also along with compression deformation; In like manner, in front and back, during the left and right directions pressurization, pressure is added on the sample by the exert pressure cube rigidity piece of hard and soft mixing pressurization lamellar body of side of sample equably, when sample horizontal direction generation compression deformation, the also and then compression deformation of hard and soft mixing pressurization lamellar body of test specimen above-below direction, true like this three rock samples be enclosed within outward vertically and horizontal direction with the sample compression-expansion, thereby the sample overcoat that guarantees sample and hard and soft mixed structure composition is the same all the time, avoid being subjected to the side direction interference behind the sample deformation, also can avoid the phase mutual interference between the three-dimensional rigidity loading rigid plate (increased pressure board) simultaneously effectively.The present invention has characteristics such as simple in structure, with low cost, can apply the three-dimensional load, can carry out multiple test to large dimension specimen.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is done further explanation:
Fig. 1 is the structural principle synoptic diagram of one embodiment of the present invention.
Fig. 2 is the vertical section structure principle schematic of Fig. 1 mode.
Fig. 3 is the cross-sectional structure principle schematic of Fig. 1 mode.
Fig. 4 is the structural principle synoptic diagram of the true three rock sample overcoats in Fig. 1 mode, is a kind of sectional structure.
Fig. 5 shows the local hard and soft mixing pressurization lamellar body of true three rock sample overcoats in Fig. 4 mode.
Fig. 6 is the plane structure chart of Fig. 5 mode.
Fig. 7 shows the partial structurtes of Fig. 5 mode.
Fig. 8 is the side-looking structural principle synoptic diagram of Fig. 7 mode.
Embodiment
In conjunction with Fig. 1 to Fig. 8, a kind of three-dimensional rigidity loads the rock true triaxil tester, comprises triaxial pressure box, true three rock sample overcoats and servo rigid pressurized system.Above-mentioned triaxial pressure box comprises pedestal 1, be positioned at coaming plate 2 on the pedestal, be positioned at the loam cake 3 at coaming plate top.Above-mentioned true three rock sample overcoats 4 place in the coaming plate, are cube or rectangular parallelepiped, are used for six faces and enclose the rock sample 5 that bag is cube or rectangular parallelepiped.Above-mentioned true three rock sample overcoats comprise six hard and soft mixing pressurization lamellar bodies, each hard and soft mixing pressurization lamellar body comprises the cube rigidity piece 401 that some one-tenth formations are arranged and the flexure strip 402 that is similar to " it " font, and every adjacent a pair of cube rigidity piece is linked to each other by a flexure strip.Increased pressure board 6 above the outer end face of true three rock sample overcoats is provided with, the outside wall surface in a certain adjacent two side of true three rock sample overcoats is respectively arranged with side direction increased pressure board 1 and side direction increased pressure board 28.
Above-mentioned servo rigid pressurized system comprises servo rigid pressurized system one, servo rigid pressurized system two and servo rigid pressurized system three; Wherein, servo rigid pressurized system one comprises pressure cylinder one, and servo rigid pressurized system two comprises pressure cylinder two, and servo rigid pressurized system three comprises pressure cylinder three.Above-mentioned servo rigid pressurized relevant technologies content those skilled in the art of system can realize, do not do too much statement at this.
In the aforesaid way, the central part of loam cake offers the top notch, and the top that links to each other with top increased pressure board pressurization cushion block 9 stretches out from the top notch, and top pressurization cushion block is connected with the piston rod 10 of pressure cylinder one.The central part of a certain side (left side) plate of above-mentioned coaming plate offers side direction notch one, the side direction pressurization cushion block 1 that links to each other with side direction increased pressure board one stretches out from side direction notch one, side direction pressurization cushion block one is connected with the piston rod 12 of pressure cylinder two, the central part of a side (front side) plate adjacent with this left side plate offers side direction notch two, the side direction pressurization cushion block 2 13 that links to each other with side direction increased pressure board two stretches out from side direction notch two, and side direction pressurization cushion block two is connected with the piston rod 14 of pressure cylinder three.
In this example, the piston rod of pressure cylinder two can corresponding left pressurizing piston bar, and side direction pressurization cushion block one can corresponding left side pressurization cushion block, and side direction increased pressure board one can corresponding left increased pressure board; The piston rod of pressure cylinder three can be corresponding before the pressurizing piston bar, pressurization cushion blocks before side direction pressurization cushion block two is corresponding, increased pressure boards before side direction increased pressure board two is corresponding.
Docking site between the above-mentioned true three rock sample overcoats, its each adjacent hard and soft mixing pressurization lamellar body can bond together by seccotine etc.
Principle of work of the present invention roughly is:
Under the effect of relevant servo rigid pressurized system, piston rod by pressure cylinder one drives upward increased pressure board motion by last pressurization cushion block, the pressure one side is added on the sample by the cube rigidity piece of the hard and soft mixing pressurization lamellar body on rock sample top equably, be added on the one hand on the hard and soft mixing pressurization lamellar body of sample all around, can guarantee that sample presses down simultaneously with the hard and soft pressurization lamellar body that mixes, thereby the inner bottom surface of increased pressure board is remained on the same surface level with the hard and soft end face that mixes the lamellar body that pressurizes.
The piston rod by separately respectively by pressure cylinder two, pressure cylinder three, namely a left side, preceding pressurizing piston bar drive a left side, the motion of preceding increased pressure board by a left side, preceding pressurization cushion block, pressure is added on the sample by the cube rigidity piece of a sample left side, anterior hard and soft mixing pressurization lamellar body on the one hand equably, be added on the other hand on the hard and soft mixing pressurization lamellar body of sample top to bottom, left and right, front and rear, can guarantee that sample mixes the corresponding compression simultaneously of pressurization lamellar body with hard and soft, thereby the internal face of a left side, preceding increased pressure board is remained at grade with the hard and soft lateral surface that mixes the lamellar body that pressurizes.
The relevant technologies content of not addressing in the aforesaid way is taked or is used for reference prior art and can realize.
Need to prove that those skilled in the art can also make such or such easy variation pattern under the instruction of this instructions, such as equivalent way, or obvious mode of texturing.Above-mentioned variation pattern all should be within protection scope of the present invention.
Claims (4)
1. a three-dimensional rigidity loads the rock true triaxil tester, it is characterized in that comprising triaxial pressure box and true three rock sample overcoats; Above-mentioned triaxial pressure box comprises pedestal, be positioned at the coaming plate on the pedestal and be positioned at the loam cake at coaming plate top; Above-mentioned true three rock samples are placed in the coaming plate outward, be cube or rectangular parallelepiped, be used for six faces and enclose the rock sample that bag is cube or rectangular parallelepiped, above-mentioned true three rock sample overcoats comprise six hard and soft mixing pressurization lamellar bodies, the flexure strip that each hard and soft mixing pressurization lamellar body comprises the cube rigidity piece that some one-tenth formations are arranged and is similar to " it " font, every adjacent a pair of cube rigidity piece is linked to each other by a flexure strip; Increased pressure board above the outer end face of true three rock sample overcoats is provided with, the outside wall surface in its a certain adjacent two side are respectively arranged with side direction increased pressure board one and side direction increased pressure board two.
2. three-dimensional rigidity according to claim 1 loads the rock true triaxil tester, it is characterized in that: above-mentioned three-dimensional rigidity loads the rock true triaxil tester and comprises servo rigid pressurized system one, servo rigid pressurized system two and servo rigid pressurized system three; Wherein, servo rigid pressurized system one comprises pressure cylinder one, and servo rigid pressurized system two comprises pressure cylinder two, and servo rigid pressurized system three comprises pressure cylinder three.
3. three-dimensional rigidity according to claim 2 loads the rock true triaxil tester, it is characterized in that: the central part of above-mentioned loam cake offers the top notch, the top pressurization cushion block that links to each other with the top increased pressure board stretches out from the top notch, and top pressurization cushion block is connected with the piston rod of pressure cylinder one; The central part of a certain volar plate of above-mentioned coaming plate offers side direction notch one, the side direction pressurization cushion block one that links to each other with side direction increased pressure board one stretches out from side direction notch one, side direction pressurization cushion block one is connected with the piston rod of pressure cylinder two, the central part of the side plate piece adjacent with this a certain volar plate offers side direction notch two, the side direction pressurization cushion block two that links to each other with side direction increased pressure board two stretches out from side direction notch two, and side direction pressurization cushion block two is connected with the piston rod of pressure cylinder three.
4. three-dimensional rigidity according to claim 1 loads the rock true triaxil tester, it is characterized in that: above-mentioned true three rock sample overcoats, the docking site between its each adjacent hard and soft mixing pressurization lamellar body bonds together by seccotine.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310073709.XA CN103207114B (en) | 2013-03-08 | 2013-03-08 | Three-way rigid load rock true triaxial apparatus |
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| CN201310073709.XA CN103207114B (en) | 2013-03-08 | 2013-03-08 | Three-way rigid load rock true triaxial apparatus |
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| CN103207114A true CN103207114A (en) | 2013-07-17 |
| CN103207114B CN103207114B (en) | 2015-02-11 |
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| CN201310073709.XA Expired - Fee Related CN103207114B (en) | 2013-03-08 | 2013-03-08 | Three-way rigid load rock true triaxial apparatus |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103983517A (en) * | 2014-05-30 | 2014-08-13 | 山东科技大学 | Accumulated deformation loading true triaxial test box |
| CN105372128A (en) * | 2015-10-22 | 2016-03-02 | 长安大学 | Method for testing graded broken stone true triaxial apparatus in mixed boundary loading mode |
| CN106442255A (en) * | 2016-09-07 | 2017-02-22 | 辽宁工程技术大学 | True-triaxial multi-physics coupling coal rock seepage testing system and true-triaxial multi-physics coupling coal rock seepage testing method |
| CN108535090A (en) * | 2017-03-06 | 2018-09-14 | 中石化石油工程技术服务有限公司 | A kind of true triaxial jet stream broken rock analogue experiment installation |
| CN109443946A (en) * | 2018-12-25 | 2019-03-08 | 长沙矿山研究院有限责任公司 | A kind of Point Load Strength Instrument and Point Load Tests method |
| WO2019080440A1 (en) * | 2017-10-23 | 2019-05-02 | 中国矿业大学 | True triaxial test device and method for cuboid rock test sample |
| CN111238950A (en) * | 2019-03-22 | 2020-06-05 | 湘潭大学 | Rock confining pressure device |
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| JPH09318511A (en) * | 1996-05-24 | 1997-12-12 | Sintokogio Ltd | Compressive strength measuring method of molding sand and apparatus therefor |
| CN101441208A (en) * | 2008-12-19 | 2009-05-27 | 河海大学 | True triaxial instrument of deformation without side direction interference |
| CN203117046U (en) * | 2013-03-08 | 2013-08-07 | 山东科技大学 | Rock true triaxial machine providing three-dimensional rigid loading |
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2013
- 2013-03-08 CN CN201310073709.XA patent/CN103207114B/en not_active Expired - Fee Related
Patent Citations (3)
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| JPH09318511A (en) * | 1996-05-24 | 1997-12-12 | Sintokogio Ltd | Compressive strength measuring method of molding sand and apparatus therefor |
| CN101441208A (en) * | 2008-12-19 | 2009-05-27 | 河海大学 | True triaxial instrument of deformation without side direction interference |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103983517A (en) * | 2014-05-30 | 2014-08-13 | 山东科技大学 | Accumulated deformation loading true triaxial test box |
| CN103983517B (en) * | 2014-05-30 | 2016-08-03 | 山东科技大学 | Accumulated deformation loads true triaxial test case |
| CN105372128A (en) * | 2015-10-22 | 2016-03-02 | 长安大学 | Method for testing graded broken stone true triaxial apparatus in mixed boundary loading mode |
| CN106442255A (en) * | 2016-09-07 | 2017-02-22 | 辽宁工程技术大学 | True-triaxial multi-physics coupling coal rock seepage testing system and true-triaxial multi-physics coupling coal rock seepage testing method |
| CN108535090A (en) * | 2017-03-06 | 2018-09-14 | 中石化石油工程技术服务有限公司 | A kind of true triaxial jet stream broken rock analogue experiment installation |
| WO2019080440A1 (en) * | 2017-10-23 | 2019-05-02 | 中国矿业大学 | True triaxial test device and method for cuboid rock test sample |
| CN109443946A (en) * | 2018-12-25 | 2019-03-08 | 长沙矿山研究院有限责任公司 | A kind of Point Load Strength Instrument and Point Load Tests method |
| CN109443946B (en) * | 2018-12-25 | 2024-03-08 | 长沙矿山研究院有限责任公司 | Point load tester and point load test method |
| CN111238950A (en) * | 2019-03-22 | 2020-06-05 | 湘潭大学 | Rock confining pressure device |
| CN111238950B (en) * | 2019-03-22 | 2023-03-21 | 湘潭大学 | Rock confining pressure device |
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