CN103822823A - Rock sample preassembling and clamping device used for hard rock true triaxial test - Google Patents
Rock sample preassembling and clamping device used for hard rock true triaxial test Download PDFInfo
- Publication number
- CN103822823A CN103822823A CN201410058881.2A CN201410058881A CN103822823A CN 103822823 A CN103822823 A CN 103822823A CN 201410058881 A CN201410058881 A CN 201410058881A CN 103822823 A CN103822823 A CN 103822823A
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- Prior art keywords
- riser
- clamping screw
- pressure
- rock sample
- vertical plate
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Links
- 239000011435 rock Substances 0.000 title claims abstract description 64
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 6
- 238000000034 method Methods 0.000 description 9
- 239000012530 fluid Substances 0.000 description 5
- 239000000565 sealant Substances 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 238000001035 drying Methods 0.000 description 3
- 238000010422 painting Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a rock sample preassembling and clamping device used for hard rock true triaxial test, and belongs to the technical field of hard rock true triaxial test. The device comprises an outer locking portion and an inner locking portion. A right-angle positioning vertical plate, a first plane vertical plate and a second plane vertical plate of the outer locking portion are fixedly installed on a base; one right-angle side of the right-angle positioning vertical plate is in parallel to the first plane vertical plate; the other right-angle side of the right angle positioning vertical plate is in parallel to the second plane vertical plate; and the right-angle positioning vertical plate, the first plane vertical plate and the second plane vertical plate are distributed in a rectangular shape. At least two first locking bolts are installed on the first plane vertical plate; thread ends of the first locking bolts correspond to pressure-bearing blocks of the inner locking portion; at least two second locking bolts are installed on the second plane vertical plate; thread ends of the second locking bolts correspond to the pressure-bearing blocks of the inner locking portion; four pressure-bearing blocks are arranged end to end; and every two adjacent pressure-bearing blocks are connected by third locking bolts.
Description
Technical field
The invention belongs to hard rock true triaxial test technical field, particularly relate to a kind of rock sample pre-assembled clamp device for hard rock true triaxial test.
Background technology
For hard rock true triaxial test, before test, rock sample is effectively assembled, it is the prerequisite that can hard rock true triaxial test be carried out smoothly, and present stage can be realized the effective means of assembling of rock sample few, existing pre-assembled clamp device cannot be realized the assembling of rock sample accurately, wherein in assembling process, the geometric center of rock sample is difficult to be adjusted into accurately with the geometric center of pre-assembled clamp device coincide, both geometric centers occur that the probability of deviation is very high, thereby cause rock sample to occur eccentric clamping; In rock sample clamping process, also be easy to the situation of the unbalance stress that occurs rock sample, have a strong impact on the precision of clamping, because clamping precision directly affects the seal operation of follow-up rock sample, owing to passing through silica gel sealing between pressure-bearing cushion block and rock sample completely, sealing state is very unstable, is collided with or misoperation once be in sealing state rock sample moving process, very easily there is seal failure, cause the failure of follow-up test; Adopting existing pre-assembled clamp device to complete after the work of clamping rock sample, and complete the work of smearing fluid sealant, also need pre-assembled clamp device together to send in drying baker and dry, this has just caused the low of pre existing assembling clamp device service efficiency, a set of pre-assembled clamp device can only be realized the clamping of a rock sample at every turn, and in actual tests, can need to complete the sealing of multiple rock samples, this just need to prepare many cover pre-assembled clamp devices simultaneously, and virtually causes the increase of experimentation cost.
Summary of the invention
The problem existing for prior art, the invention provides a kind of rock sample pre-assembled clamp device for hard rock true triaxial test, this device can realize easily the geometric center of rock sample and the geometric center of pre-assembled clamp device coincides, in rock sample clamping process, can guarantee that rock sample is stressed evenly, improve clamping precision, guarantee that the stable of follow-up seal operation carries out, and can realize efficient clamping, reduce experimentation cost.
To achieve these goals, the present invention adopts following technical scheme: a kind of rock sample pre-assembled clamp device for hard rock true triaxial test, comprise outer locking part and internal locking part, described outer locking part comprises pedestal, location, right angle riser, the first plane riser, the second plane riser, the first clamping screw and the second clamping screw, and described internal locking part comprises pressure-bearing cushion block and the 3rd clamping screw;
Location, described right angle riser, the first plane riser and the second plane riser are all packed on pedestal, a right-angle side of location, right angle riser parallels with the first plane riser, another right-angle side of location, right angle riser parallels with the second plane riser, and right angle location riser, the first plane riser and the rectangular distribution of the second plane riser;
Described the first clamping screw is arranged on the first plane riser, and the thread end of the first clamping screw is corresponding with pressure-bearing cushion block; Described the second clamping screw is arranged on the second plane riser, and the thread end of the second clamping screw is corresponding with pressure-bearing cushion block;
The quantity of described pressure-bearing cushion block is four, and four end to end arrangements of pressure-bearing cushion block are all connected by the 3rd clamping screw between every two adjacent pressure-bearing cushion blocks.
The quantity of described the first clamping screw is at least two.
The quantity of described the second clamping screw is at least two.
Beneficial effect of the present invention:
The present invention compared with prior art, can realize easily the geometric center of rock sample and the geometric center of pre-assembled clamp device coincides, can guarantee that rock sample is after bolt-locking simultaneously, rock sample is stressed evenly, improve clamping precision, can guarantee that the stable of follow-up seal operation carries out, also for providing smoothly of follow-up test may, and clamping efficiency is high, experimentation cost also significantly reduces.
Accompanying drawing explanation
Fig. 1 is a kind of rock sample pre-assembled clamp device structural representation for hard rock true triaxial test of the present invention;
Fig. 2 is A-A cut-open view in Fig. 1;
In figure, 1-pedestal, location, 2-right angle riser, the 3-the first plane riser, the 4-the second plane riser, the 5-the first clamping screw, the 6-the second clamping screw, the 7-the three clamping screw, 8-pressure-bearing cushion block, 9-rock sample.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
As shown in Figure 1, 2, a kind of rock sample pre-assembled clamp device for hard rock true triaxial test, comprise outer locking part and internal locking part, described outer locking part comprises pedestal 1, location, right angle riser 2, the first plane riser 3, the second plane riser 4, the first clamping screw 5 and the second clamping screw 6, and described internal locking part comprises pressure-bearing cushion block 8 and the 3rd clamping screw 7;
Location, described right angle riser 2, the first plane riser 3 and the second plane riser 4 are all packed on pedestal 1, a right-angle side of location, right angle riser 2 parallels with the first plane riser 3, another right-angle side of location, right angle riser 2 parallels with the second plane riser 4, and right angle location riser 2, the first plane riser 3 and the rectangular distribution of the second plane riser 4;
Described the first clamping screw 5 is arranged on the first plane riser 3, and the thread end of the first clamping screw 5 is corresponding with pressure-bearing cushion block 8; Described the second clamping screw 6 is arranged on the second plane riser 4, and the thread end of the second clamping screw 6 is corresponding with pressure-bearing cushion block 8;
The quantity of described pressure-bearing cushion block 8 is four, and four end to end arrangements of pressure-bearing cushion block 8 are all connected by the 3rd clamping screw 7 between every two adjacent pressure-bearing cushion blocks 8.
The quantity of described the first clamping screw 5 is at least two, because rock sample is subject in single bolt-locking process in this side, be easy to cause the situation of rock sample unbalance stress to occur, and adopt multiple bolts to lock simultaneously, when having divided equally clamping force, just guarantee very easily the uniform stressed of rock sample.
The quantity of described the second clamping screw 6 is at least two, because rock sample is subject in single bolt-locking process in this side, be easy to cause the situation of rock sample unbalance stress to occur, and adopt multiple bolts to lock simultaneously, when having divided equally clamping force, just guarantee very easily the uniform stressed of rock sample.
Below in conjunction with accompanying drawing, a use procedure of the present invention is described:
In the present embodiment, rock sample 9 is of a size of 50 × 50 × 100mm, and four pressure-bearing cushion blocks 8 are according to the size apolegamy of rock sample 9, and the quantity of the first clamping screw 5 is three, and the quantity of the second clamping screw 6 is two.
Before the formal pre-assembled of rock sample 9 is clamped, first three the first clamping screws 5 and two the second clamping screws 6 are all adjusted to the outermost position of place plane riser separately, place rock sample 9 and four pressure-bearing cushion blocks 8 below to facilitate;
First by wherein two end to end abutting on the riser 2 of location, right angle of pressure-bearing cushion block 8, again rock sample 9 is abutted on these two pressure-bearing cushion blocks 8, then all the other two pressure-bearing cushion blocks 8 are abutted on rock sample 9, now guarantee that four pressure-bearing cushion blocks 8 are end to end state;
Screw successively three the first clamping screws 5 and two the second clamping screws 6, until after four pressure-bearing cushion blocks 8 firmly clamp rock sample 9, successively every two adjacent pressure-bearing cushion blocks 8 are locked by four the 3rd clamping screws 7 again, four pressure-bearing cushion blocks 8 are now just in self-locking state, next just can carry out the painting fluid sealant work of rock sample 9 end faces, after end face gluing completes, unclamp three the first clamping screws 5 and two the second clamping screws 6, and four the 3rd clamping screws 7 are still in locking state, now can start to carry out the painting fluid sealant work of rock sample 9 reverse side,
After the work of painting fluid sealant all completes, light and slow send into and in drying baker, carry out drying work coating the rock sample 9 of fluid sealant and peripheral pressure-bearing cushion block 8 thereof, in this process, because pressure-bearing cushion block 8 has completed self-locking by the 3rd clamping screw 7, in moving process, improve the stability of sealing state, between pressure-bearing cushion block 8, be difficult for occurring displacement distortion, for providing smoothly of follow-up test may.
Wherein outer locking part still can be used for the pre-assembled clamping work of other rock samples, the use cost of not only having saved thus pre-assembled clamp device, and the work efficiency that completes multiple rock sample pre-assembled clampings has also improved greatly.
Specific descriptions in the present embodiment are not in order to limit the scope of the claims of the present invention, and the equivalence that all the present invention of disengaging do is implemented or changed, and is all contained in the scope of the claims of this case.
Claims (3)
1. the rock sample pre-assembled clamp device for hard rock true triaxial test, it is characterized in that: comprise outer locking part and internal locking part, described outer locking part comprises pedestal, location, right angle riser, the first plane riser, the second plane riser, the first clamping screw and the second clamping screw, and described internal locking part comprises pressure-bearing cushion block and the 3rd clamping screw;
Location, described right angle riser, the first plane riser and the second plane riser are all packed on pedestal, a right-angle side of location, right angle riser parallels with the first plane riser, another right-angle side of location, right angle riser parallels with the second plane riser, and right angle location riser, the first plane riser and the rectangular distribution of the second plane riser;
Described the first clamping screw is arranged on the first plane riser, and the thread end of the first clamping screw is corresponding with pressure-bearing cushion block; Described the second clamping screw is arranged on the second plane riser, and the thread end of the second clamping screw is corresponding with pressure-bearing cushion block;
The quantity of described pressure-bearing cushion block is four, and four end to end arrangements of pressure-bearing cushion block are all connected by the 3rd clamping screw between every two adjacent pressure-bearing cushion blocks.
2. a kind of rock sample pre-assembled clamp device for hard rock true triaxial test according to claim 1, is characterized in that: the quantity of described the first clamping screw is at least two.
3. a kind of rock sample pre-assembled clamp device for hard rock true triaxial test according to claim 1, is characterized in that: the quantity of described the second clamping screw is at least two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410058881.2A CN103822823B (en) | 2014-02-21 | 2014-02-21 | A kind of rock sample pre-assembled clamp device for hard rock true triaxial test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410058881.2A CN103822823B (en) | 2014-02-21 | 2014-02-21 | A kind of rock sample pre-assembled clamp device for hard rock true triaxial test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103822823A true CN103822823A (en) | 2014-05-28 |
| CN103822823B CN103822823B (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410058881.2A Expired - Fee Related CN103822823B (en) | 2014-02-21 | 2014-02-21 | A kind of rock sample pre-assembled clamp device for hard rock true triaxial test |
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| Country | Link |
|---|---|
| CN (1) | CN103822823B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104155183A (en) * | 2014-07-29 | 2014-11-19 | 中国科学院武汉岩土力学研究所 | Method for calculating ejection trajectory and initial speed of rock mass in indoor test |
| CN106915102A (en) * | 2017-02-17 | 2017-07-04 | 江苏恒神股份有限公司 | A kind of molded through pultrusion of composite material rectangular tube core localization method |
| CN109323920A (en) * | 2018-12-21 | 2019-02-12 | 东北大学 | It is a kind of for two upon soft true triaxial test machine off-load fixture and assembly method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101477004A (en) * | 2009-01-16 | 2009-07-08 | 成都理工大学 | Portable true triaxial apparatus |
| CN201359587Y (en) * | 2009-03-06 | 2009-12-09 | 中国科学院武汉岩土力学研究所 | Self-balancing rock full end-surface true triaxial compression test device |
| CN102252892A (en) * | 2011-04-20 | 2011-11-23 | 中国科学院武汉岩土力学研究所 | Device for assembling rock samples in true triaxial test |
| CN102735532A (en) * | 2012-06-29 | 2012-10-17 | 东北大学 | Rock true triaxial pressure chamber with changeable principal stress direction when unloading |
| CN103398861A (en) * | 2013-08-05 | 2013-11-20 | 中国科学院武汉岩土力学研究所 | Physical simulation test system for true triaxial rockburst of deep-buried tunnel |
| CN103592186A (en) * | 2013-11-29 | 2014-02-19 | 重庆大学 | Device and experimental method for researching shale hydraulic-fracturing damage evolution under true triaxial loading condition |
-
2014
- 2014-02-21 CN CN201410058881.2A patent/CN103822823B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101477004A (en) * | 2009-01-16 | 2009-07-08 | 成都理工大学 | Portable true triaxial apparatus |
| CN201359587Y (en) * | 2009-03-06 | 2009-12-09 | 中国科学院武汉岩土力学研究所 | Self-balancing rock full end-surface true triaxial compression test device |
| CN102252892A (en) * | 2011-04-20 | 2011-11-23 | 中国科学院武汉岩土力学研究所 | Device for assembling rock samples in true triaxial test |
| CN102735532A (en) * | 2012-06-29 | 2012-10-17 | 东北大学 | Rock true triaxial pressure chamber with changeable principal stress direction when unloading |
| CN103398861A (en) * | 2013-08-05 | 2013-11-20 | 中国科学院武汉岩土力学研究所 | Physical simulation test system for true triaxial rockburst of deep-buried tunnel |
| CN103592186A (en) * | 2013-11-29 | 2014-02-19 | 重庆大学 | Device and experimental method for researching shale hydraulic-fracturing damage evolution under true triaxial loading condition |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104155183A (en) * | 2014-07-29 | 2014-11-19 | 中国科学院武汉岩土力学研究所 | Method for calculating ejection trajectory and initial speed of rock mass in indoor test |
| CN106915102A (en) * | 2017-02-17 | 2017-07-04 | 江苏恒神股份有限公司 | A kind of molded through pultrusion of composite material rectangular tube core localization method |
| CN109323920A (en) * | 2018-12-21 | 2019-02-12 | 东北大学 | It is a kind of for two upon soft true triaxial test machine off-load fixture and assembly method |
| CN109323920B (en) * | 2018-12-21 | 2020-11-24 | 东北大学 | Clamp for unloading of two-steel-one-flexible-true triaxial testing machine and assembling method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103822823B (en) | 2016-04-20 |
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Granted publication date: 20160420 |