CN107607413A - A kind of rock shearing experimental rig - Google Patents
A kind of rock shearing experimental rig Download PDFInfo
- Publication number
- CN107607413A CN107607413A CN201710954610.9A CN201710954610A CN107607413A CN 107607413 A CN107607413 A CN 107607413A CN 201710954610 A CN201710954610 A CN 201710954610A CN 107607413 A CN107607413 A CN 107607413A
- Authority
- CN
- China
- Prior art keywords
- shear
- shear box
- tangential
- rock
- power set
- 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.)
- Pending
Links
Abstract
The present invention provides a kind of rock shearing experimental rig, including：Fluid shear chamber, top shear box, bottom shear box, tangential fixing device, tangential power set and axial power set；Chemical solution is full of in the fluid shear chamber, the top shear box and the bottom shear box are arranged in inside the fluid shear chamber；Rock joint test specimen is fixed among the top shear box and the bottom shear box；One end of the tangential fixing device contacts with a side surface of the top shear box；One end of the tangential power set contacts with a side surface of the bottom shear box；One end of the axial power set and the upper surface of the top shear box；The bottom shear box is placed on the bottom of the fluid shear chamber.Rock shearing experimental rig provided by the invention, rock joint test specimen, which is completely submerged in chemical solution, carries out direct shear test, has more really drawn mechanical property of the rock joint test specimen under chemical solution and rock interaction.
Description
Technical field
The present invention relates to Geotechnical Engineering field, more particularly, to a kind of rock shearing experimental rig.
Background technology
As the extensive propulsion of national basis Facilities Construction, status of the rock mechanics in engineering practice are increasingly heavier
Will, chemical solution has very important influence, many engineerings and nature to mechanical properties of rock with rock interaction
Disaster all encounters chemical solution and rock interacts the problems such as causing mechanical properties of rock to weaken, but chemical solution and rock
Influence of the stone interaction for mechanical properties of rock is not only that simple mechanical property reduces.What is included in rock mass is discontinuous
Face, design, the construction of its mechanics and water reason characteristic to rock mass underground engineering play decisive role, the shear property of rock joint
It is the important evidence for evaluating rock stability.The interaction of water petrofacies influences the science in today for the mechanical property of rock joint
Boundary is got growing concern for, and it is that academia pays close attention to study chemical solution with rock interaction by Experimental Method in Laboratory
Emphasis, but present test method can not ensure the experiment nothing that rock carries out direct shear test in chemical solution, so carries out
Method completely reflects that chemical solution interacts with rock, has notable difference with truth.
The joint failure by shear of rock carries out obtaining with rock to be taken out to progress direct shear test from water in chemical solution
Mechanics parameter have a significant difference, conventional test method in rock chemically solution using will take out, and due to experiment
The problems such as device is installed more more options dry chemical solution before on-test, and the laboratory test so carried out is actual and true
In the case of the interaction of chemical solution and rock have significant difference, remove actually reduce after solution solution for
The lubrication of rock joint, the shear parameters for causing experiment to obtain are inaccurate.
The content of the invention
In order to overcome the above-mentioned problems in the prior art at least in part, the present invention provides a kind of rock shearing experiment
Device.
The present invention provides a kind of rock shearing experimental rig, including：It is fluid shear chamber, top shear box, bottom shear box, tangential
Fixing device, tangential power set and axial power set；Wherein, it is full of chemical solution, the top in the fluid shear chamber
Shear box and the bottom shear box are arranged in inside the fluid shear chamber；Rock joint test specimen be fixed on the top shear box and
Among the bottom shear box；One end of the tangential fixing device contacts with a side surface of the top shear box；It is described
One end of tangential power set contacts with a side surface of the bottom shear box；One end of the axial power set with it is described
The upper surface of top shear box；The bottom shear box is placed on the bottom of the fluid shear chamber.
Wherein, the preceding surface of the fluid shear chamber, the material on rear surface are transparent acrylic organic plates.
Wherein, in addition to：Bottom cushion block；Wherein, the bottom cushion block be placed on the fluid shear chamber bottom and it is described under
Among portion's shear box.
Wherein, in addition to：Direct shear apparatus framework and direct shear apparatus base；Wherein, the direct shear apparatus framework, the fluid shear chamber are solid
It is scheduled on the direct shear apparatus base；The other end of the axial power set is fixed on the upper end of the direct shear apparatus framework；It is described
The other end of tangential fixing device is fixed on one end of the direct shear apparatus framework；The other end of the tangential power set is fixed on
The other end of the direct shear apparatus framework.
Wherein, the tangential power set are the first hydraulic servo jack；Wherein, first hydraulic servo is very heavy
Top, for controlling the tangential displacement of the bottom shear box.
Wherein, the axial power set are the second hydraulic servo jack；Wherein, second hydraulic servo is very heavy
Top, for controlling the axial compressive force of the top shear box.
Wherein, the tangential space between fixing device and the fluid shear chamber is provided with the first rubber seal.
Wherein, the tangential space between power set and the fluid shear chamber is provided with the second rubber seal.
Wherein, the first hydraulic servo jack, the tangential displacement for the increase bottom shear box per second
0.5mm。
Wherein, the second hydraulic servo jack, the axial direction pressure for the 0.2kN of the increase top shear box per second
Power, the maximum of the axial compressive force is 12.5kN.
To sum up, rock shearing experimental rig provided by the invention, fluid shear chamber is interior to be full of chemical solution, and top shear box is with
Portion's shear box is arranged in inside fluid shear chamber；Rock joint test specimen is fixed among top shear box and bottom shear box；It is tangential solid
Determine one end of device to contact with a side surface of top shear box；One end of tangential power set and the side table of bottom shear box
Face contacts；One end of axial power set and the upper surface of top shear box；Bottom shear box is placed on the bottom of fluid shear chamber
Portion.Rock shearing experimental rig provided by the invention, rock joint test specimen, which is completely submerged in chemical solution, carries out direct shear test,
Mechanical property of the rock joint test specimen under chemical solution and rock interaction is more really drawn.
Brief description of the drawings
Fig. 1 is the structural representation according to a kind of rock shearing experimental rig of the embodiment of the present invention.
Reference：
1- axial directions oil cylinder；2- axial directions jack；3- tops shear box；4- rock joint test specimens；The tangential jack of 5-；6- is cut
To oil cylinder；7- bottoms shear box；The rubber seal of 8- second；9- bottoms cushion block；10- direct shear apparatus frameworks；11- fluid shear chambers；12- is cut
To the outer end of fixing device；The fixing end of the tangential fixing devices of 13-；The rubber seal of 14- first；15- shears chamber outer wall；
The preceding surface of 16- fluid shear chambers；17- direct shear apparatus bases.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, to the embodiment of the present invention
In technical scheme be explicitly described, it is clear that described embodiment is part of the embodiment of the present invention, rather than all
Embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art institute under the premise of creative work is not made
The every other embodiment obtained, belongs to the scope of protection of the invention.
Fig. 1 is according to a kind of structural representation of rock shearing experimental rig of the embodiment of the present invention, as shown in figure 1, bag
Include：Fluid shear chamber 11, top shear box 3, bottom shear box 7, tangential fixing device, tangential power set and axial power dress
Put；Wherein,
Chemical solution is full of in the fluid shear chamber 11, the top shear box 3 and the bottom shear box 7 are arranged in described
Inside fluid shear chamber 11；
Rock joint test specimen 4 is fixed among the top shear box 3 and the bottom shear box 7；
One end of the tangential fixing device contacts with a side surface of the top shear box 3；
One end of the tangential power set contacts with a side surface of the bottom shear box 7；
One end of the axial power set and the upper surface of the top shear box 3；
The bottom shear box 7 is placed on the bottom of the fluid shear chamber 11.
Preferably, fluid shear chamber 11 is hollow cuboid.
Specifically, appropriate chemical solution is added inside fluid shear chamber 11, ensures being completely submerged in of rock joint test specimen 4
Learn in solution, rock joint test specimen 4 is fixed among top shear box 3 and bottom shear box 7, when placing rock joint test specimen 4
It should ensure that with axial power set on same center line；Bottom shear box 7 is placed on the bottom of fluid shear chamber 11；Top shear box
3 are close to the fixing end 13 of tangential fixing device, and after fixing rock joint test specimen 4, axial power set carry out axially loaded.Apply
After adding axial compressive force, tangential power set are tangentially loaded.
Present embodiments provide a kind of rock shearing experimental rig, be full of chemical solution in fluid shear chamber, top shear box with
Bottom shear box is arranged in inside fluid shear chamber；Rock joint test specimen is fixed among top shear box and bottom shear box；Tangentially
One end of fixing device contacts with a side surface of top shear box；One end and the side of bottom shear box of tangential power set
Surface contacts；One end of axial power set and the upper surface of top shear box；Bottom shear box is placed on the shearing
The bottom of room.The rock shearing experimental rig that the present embodiment provides, rock joint test specimen are completely submerged in chemical solution and carried out
Direct shear test, mechanical property of the rock joint test specimen under chemical solution and rock interaction is more really drawn.
In another embodiment of the present invention, on the basis of above-described embodiment, the preceding surface of the fluid shear chamber, rear table
The material in face is transparent acrylic organic plates.
Preferably, the material for shearing chamber outer wall 15 is steel.
Preferably, the preceding surface 16 of fluid shear chamber and the back side of fluid shear chamber make of transparent acrylic organic plates, are easy to
The destruction situation of rock joint test specimen 4 in loading procedure is recorded during experiment with high speed camera.
In another embodiment of the present invention, on the basis of above-described embodiment, in addition to：Bottom cushion block 9；Wherein,
The bottom cushion block 9 is placed among the bottom and the bottom shear box 7 of the fluid shear chamber 11.
Specifically, the height of rock joint test specimen 4 is adjusted by bottom cushion block 9, is convenient for direct shear test.
In yet another embodiment of the present invention, on the basis of above-described embodiment, in addition to：Direct shear apparatus framework 10 and straight
Cut instrument base 17；Wherein,
The direct shear apparatus framework 10, the fluid shear chamber 11 are each attached on the direct shear apparatus base 17；
The other end of the axial power set is fixed on the upper end of the direct shear apparatus framework 10；
The other end of the tangential fixing device is fixed on one end of the direct shear apparatus framework 10；
The other end of the tangential power set is fixed on the other end of the direct shear apparatus framework 10.
Specifically, the outer end 12 of tangential fixing device is fixed on the left end of direct shear apparatus framework 10；Axial power set
The other end is fixed on the upper end of direct shear apparatus framework 10；The other end of tangential power set is fixed on the right-hand member of direct shear apparatus framework 10.
In another embodiment of the invention, on the basis of above-described embodiment, the tangential power set are the first liquid
Press servo jack；Wherein,
The first hydraulic servo jack, for controlling the tangential displacement of the bottom shear box 7.
Preferably, the first hydraulic servo jack includes tangential oil cylinder 6 and tangential jack 5, and the first hydraulic servo is very heavy
Top controlled by servo loading system, can be realized by computer programming it is a variety of under the conditions of loading.
Specifically, one end of tangential oil cylinder 6 is fixed on the right-hand member of direct shear apparatus framework 10；One end of tangential jack 5 is with
The side surface contact of portion's shear box 7.
In another embodiment of the invention, on the basis of above-described embodiment, the axial power set are the second liquid
Press servo jack；Wherein,
The second hydraulic servo jack, for controlling the axial compressive force of the top shear box.
Preferably, the second hydraulic servo jack includes axial oil cylinder 1 and axial jack 2, and the second hydraulic servo is very heavy
Top controlled by servo loading system, can be realized by computer programming it is a variety of under the conditions of loading.
Specifically, one end of axial oil cylinder 1 is fixed on the upper end of direct shear apparatus framework 10；One end of axial jack 2 with it is upper
The upper surface of portion's shear box 3.
In another embodiment of the invention, on the basis of above-described embodiment, the tangential fixing device is cut with described
Cut the space between room 11 and be provided with the first rubber seal 14.
Wherein, being provided with the first rubber seal 14 prevents chemical solution seepage in fluid shear chamber 11.
In another embodiment of the invention, on the basis of above-described embodiment, the tangential power set are cut with described
Cut the space between room 11 and be provided with the second rubber seal 8.
Wherein, being provided with the second rubber seal 8 prevents chemical solution seepage in fluid shear chamber 11.
In another embodiment of the invention, on the basis of above-described embodiment, the first hydraulic servo jack, use
In the tangential displacement 0.5mm of the increase bottom shear box 7 per second.
Specifically, the first hydraulic servo jack, the tangential displacement 0.5mm for increase bottom shear box 7 per second.
Preferably, the tangential displacement of bottom shear box 7 is total up to 300mm.
In another embodiment of the invention, on the basis of above-described embodiment, the second hydraulic servo jack, use
In the 0.2kN of the increase top shear box 3 per second axial compressive force, the maximum of the axial compressive force is 12.5kN.
Specifically, the second hydraulic servo jack, for the 0.2kN of increase top shear box 3 per second axial compressive force, axle
It is 12.5kN to the maximum of pressure.
Present embodiments provide a kind of rock shearing experimental rig, be full of chemical solution in fluid shear chamber, top shear box with
Bottom shear box is arranged in inside fluid shear chamber；Rock joint test specimen is fixed among top shear box and bottom shear box；Tangentially
One end of fixing device contacts with a side surface of top shear box；One end of first hydraulic servo jack and bottom shear box
A side surface contact；One end of second hydraulic servo jack and the upper surface of top shear box；Bottom shear box is put
Put and be placed on the bottom of fluid shear chamber in the upper surface of bottom cushion block, bottom cushion block.The rock shearing experiment dress that the present embodiment provides
Put, rock joint test specimen, which is completely submerged in chemical solution, carries out direct shear test, has more really shown that rock joint test specimen exists
Chemical solution and the mechanical property under rock interaction.
Although being described in conjunction with the accompanying embodiments of the present invention, those skilled in the art can not depart from this hair
Various modifications and variations are made in the case of bright spirit and scope, such modifications and variations are each fallen within by appended claims
Within limited range.
Claims (10)
- A kind of 1. rock shearing experimental rig, it is characterised in that including：It is fluid shear chamber, top shear box, bottom shear box, tangential Fixing device, tangential power set and axial power set；Wherein,Chemical solution is full of in the fluid shear chamber, the top shear box and the bottom shear box are arranged in the fluid shear chamber Portion；Rock joint test specimen is fixed among the top shear box and the bottom shear box；One end of the tangential fixing device contacts with a side surface of the top shear box；One end of the tangential power set contacts with a side surface of the bottom shear box；One end of the axial power set and the upper surface of the top shear box；The bottom shear box is placed on the bottom of the fluid shear chamber.
- 2. rock shearing experimental rig according to claim 1, it is characterised in that the preceding surface of the fluid shear chamber, rear table The material in face is transparent acrylic organic plates.
- 3. rock shearing experimental rig according to claim 1, it is characterised in that also include：Bottom cushion block；Wherein,The bottom cushion block is placed among the bottom and the bottom shear box of the fluid shear chamber.
- 4. rock shearing experimental rig according to claim 1, it is characterised in that also include：Direct shear apparatus framework and staight scissors Instrument base；Wherein,The direct shear apparatus framework, the fluid shear chamber are each attached on the direct shear apparatus base；The other end of the axial power set is fixed on the upper end of the direct shear apparatus framework；The other end of the tangential fixing device is fixed on one end of the direct shear apparatus framework；The other end of the tangential power set is fixed on the other end of the direct shear apparatus framework.
- 5. rock shearing experimental rig according to claim 1, it is characterised in that the tangential power set are the first liquid Press servo jack；Wherein,The first hydraulic servo jack, for controlling the tangential displacement of the bottom shear box.
- 6. rock shearing experimental rig according to claim 1, it is characterised in that the axial power set are the second liquid Press servo jack；Wherein,The second hydraulic servo jack, for controlling the axial compressive force of the top shear box.
- 7. rock shearing experimental rig according to claim 1, it is characterised in that the tangential fixing device is cut with described Cut the space between room and be provided with the first rubber seal.
- 8. rock shearing experimental rig according to claim 1, it is characterised in that the tangential power set are cut with described Cut the space between room and be provided with the second rubber seal.
- 9. rock shearing experimental rig according to claim 5, it is characterised in that the first hydraulic servo jack, Tangential displacement 0.5mm for the increase bottom shear box per second.
- 10. rock shearing experimental rig according to claim 6, it is characterised in that the second hydraulic servo jack, For the 0.2kN of the increase top shear box per second axial compressive force, the maximum of the axial compressive force is 12.5kN.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710954610.9A CN107607413A (en) | 2017-10-13 | 2017-10-13 | A kind of rock shearing experimental rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710954610.9A CN107607413A (en) | 2017-10-13 | 2017-10-13 | A kind of rock shearing experimental rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107607413A true CN107607413A (en) | 2018-01-19 |
Family
ID=61077176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710954610.9A Pending CN107607413A (en) | 2017-10-13 | 2017-10-13 | A kind of rock shearing experimental rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107607413A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109342147A (en) * | 2018-11-30 | 2019-02-15 | 河海大学 | A kind of rock mass sample preparation device in prismatical joint with angle |
| CN110823720A (en) * | 2019-11-20 | 2020-02-21 | 清华大学 | Direct shear test method for natural cemented filling rock fracture under high temperature condition |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095649A (en) * | 2010-12-29 | 2011-06-15 | 中国科学院武汉岩土力学研究所 | Direct shear testing device of saturated rock soil samples |
| CN202083598U (en) * | 2011-03-29 | 2011-12-21 | 曾胜 | Dry-wet circulation large-size strain control type direct shearing device |
| CN102445528A (en) * | 2010-09-10 | 2012-05-09 | 香港科技大学 | Humidity and osmotic suction-controlled box |
| CN105547864A (en) * | 2016-01-22 | 2016-05-04 | 武汉轻工大学 | Method for determining shear strength of chemically polluted soil and special full-automatic direct shear apparatus |
| CN106124343A (en) * | 2016-08-25 | 2016-11-16 | 绍兴文理学院 | The pilot system of THMC coupling during consideration rock joint shear |
-
2017
- 2017-10-13 CN CN201710954610.9A patent/CN107607413A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102445528A (en) * | 2010-09-10 | 2012-05-09 | 香港科技大学 | Humidity and osmotic suction-controlled box |
| CN102095649A (en) * | 2010-12-29 | 2011-06-15 | 中国科学院武汉岩土力学研究所 | Direct shear testing device of saturated rock soil samples |
| CN202083598U (en) * | 2011-03-29 | 2011-12-21 | 曾胜 | Dry-wet circulation large-size strain control type direct shearing device |
| CN105547864A (en) * | 2016-01-22 | 2016-05-04 | 武汉轻工大学 | Method for determining shear strength of chemically polluted soil and special full-automatic direct shear apparatus |
| CN106124343A (en) * | 2016-08-25 | 2016-11-16 | 绍兴文理学院 | The pilot system of THMC coupling during consideration rock joint shear |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109342147A (en) * | 2018-11-30 | 2019-02-15 | 河海大学 | A kind of rock mass sample preparation device in prismatical joint with angle |
| CN109342147B (en) * | 2018-11-30 | 2021-01-26 | 河海大学 | Preparation device for columnar jointed rock mass sample with inclination angle |
| CN110823720A (en) * | 2019-11-20 | 2020-02-21 | 清华大学 | Direct shear test method for natural cemented filling rock fracture under high temperature condition |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103674597B (en) | Bi-directional variable cross-section water pressure bearing circulation testing system used for coal mine water burst model test | |
| CN104200734B (en) | A kind of method of inverting coal seam bottom water bursting | |
| CN101514977B (en) | Three-dimensionally loaded guide frame device for underground project model test | |
| CN103712852B (en) | A kind of rock lateral confinement compression resistance experiment sample clamp and experimental technique | |
| CN105699203B (en) | A kind of experimental rig and method for measuring construction material compression strength under confined pressure | |
| CN107607413A (en) | A kind of rock shearing experimental rig | |
| CN101975072B (en) | Recovery method of common combined mining working face hydraulic support | |
| Wu et al. | Design and application of hydro-mechanical coupling test system for simulating rock masses in high dam reservoir operations | |
| CN206832591U (en) | A kind of hydraulic tube piece production strength testing device | |
| CN203020526U (en) | Adjustable supporting pipe | |
| CN106442152B (en) | It is a kind of to stablize the experimental rig for applying osmotic pressure with crack propagation | |
| CN205558339U (en) | A demolish device for high -rise building thing | |
| CN203224426U (en) | MHC coupling seepage experiment device for circumferential crack rock test piece | |
| CN202832302U (en) | Drilling equipment holding device loading and unloading drill rod through machines | |
| CN204225116U (en) | Steel concrete pile crown shearing-crushing device | |
| Nazir et al. | Precast spread foundation in industrialized building system | |
| CN207143908U (en) | A kind of static sounding platform waterborne | |
| Wang et al. | A nonlinear normal consolidation line for bentonite in e-logp space | |
| CN205333415U (en) | Obsturator triaxial adds uninstallation destructive process test device | |
| CN105973675B (en) | A kind of controlled surface roughness artificial rock joint preparation facilities and its application process | |
| CN2901478Y (en) | Saturated sandy soil vibration liquefying demonstrator | |
| CN203334678U (en) | Outer wall formwork strengthening system for concrete pouring | |
| CN208362303U (en) | A kind of biology with multiple protective prepares case | |
| CN212508377U (en) | Mine tunnel supporting device | |
| CN206956697U (en) | A kind of Bearing Capacity in Soil of Foundation Bed test device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180119 |