CN103822823B - A kind of rock sample pre-assembled clamp device for hard rock true triaxial test - Google Patents
A kind of rock sample pre-assembled clamp device for hard rock true triaxial test Download PDFInfo
- Publication number
- CN103822823B CN103822823B CN201410058881.2A CN201410058881A CN103822823B CN 103822823 B CN103822823 B CN 103822823B CN 201410058881 A CN201410058881 A CN 201410058881A CN 103822823 B CN103822823 B CN 103822823B
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- China
- Prior art keywords
- riser
- clamping screw
- plane
- pressure
- bearing cushion
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Links
- 239000011435 rock Substances 0.000 title claims abstract description 62
- 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 abstract description 7
- 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
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
For a rock sample pre-assembled clamp device for hard rock true triaxial test, belong to hard rock true triaxial test technical field.The present invention includes outer locking part and internal locking part, location, right angle riser, the first plane riser and the second plane riser of outer locking part are all packed on pedestal, right angle location riser right-angle side parallels with the first plane riser, another right-angle side parallels with the second plane riser, and location, right angle riser, the first plane riser and the rectangular distribution of the second plane riser; First clamping screw is arranged on the first plane riser, and its thread end is corresponding with the pressure-bearing cushion block of internal locking part; Second clamping screw is arranged on the second plane riser, and its thread end is corresponding with the pressure-bearing cushion block of internal locking part; The quantity of pressure-bearing cushion block is four, four end to end arrangements of pressure-bearing cushion block, is all connected by the 3rd clamping screw between every two adjacent pressure-bearing cushion blocks; The quantity of the first clamping screw and the second clamping screw is all at least two.
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 realize means that rock sample effectively assembles and few, existing pre-assembled clamp device cannot realize the assembling of rock sample accurately, wherein in assembling process, the geometric center of rock sample is difficult to the geometric center be adjusted to accurately with pre-assembled clamp device and coincides, both geometric centers occur that the probability of deviation is very high, thus cause rock sample to occur eccentric clamping; In rock sample clamping process, also the situation of the unbalance stress occurring rock sample is easy to, 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 completely between pressure-bearing cushion block and rock sample, 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; After the existing pre-assembled clamp device of employing completes 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 to dry, this just causes the low of pre existing assembling clamp device service efficiency, a set of pre-assembled clamp device can only realize the clamping of a rock sample at every turn, and in actual tests, the sealing of multiple rock sample can have been needed, this just needs to prepare many cover pre-assembled clamp devices simultaneously, and virtually causes the increase of experimentation cost.
Summary of the invention
For prior art Problems existing, the invention provides a kind of rock sample pre-assembled clamp device for hard rock true triaxial test, the geometric center of geometric center and pre-assembled clamp device that this device can realize rock sample easily coincides, in rock sample clamping process, rock sample uniform force can be ensured, improve clamping precision, ensure that the stable of follow-up seal operation carries out, and efficient clamping can be realized, 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 location, right angle riser, the first plane riser and the rectangular distribution of the second plane riser;
Described 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 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, four end to end arrangements of pressure-bearing cushion block, is all connected by the 3rd clamping screw between every two adjacent pressure-bearing cushion blocks.
The quantity of described first clamping screw is at least two.
The quantity of described second clamping screw is at least two.
Beneficial effect of the present invention:
The present invention compared with prior art, the geometric center of the geometric center and pre-assembled clamp device that can realize rock sample easily coincides, can ensure that rock sample is after bolt-locking simultaneously, rock sample uniform force, improve clamping precision, can ensure that the stable of follow-up seal operation carries out, also for follow-up test carry out providing possibility smoothly, 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, first plane riser 3, second plane riser 4, 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, 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 location, right angle riser 2, first plane riser 3 and the rectangular distribution of the second plane riser 4;
Described 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 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, four end to end arrangements of pressure-bearing cushion block 8, is all connected by the 3rd clamping screw 7 between every two adjacent pressure-bearing cushion blocks 8.
The quantity of described 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 bolt to lock simultaneously, just ensure that the uniform stressed of rock sample while having divided equally clamping force very easily.
The quantity of described 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 bolt to lock simultaneously, just ensure that the uniform stressed of rock sample while having divided equally clamping force very easily.
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 matched according to the size 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 to the formal pre-assembled clamping of rock sample 9, first three the first clamping screws 5 and two the second clamping screws 6 are all adjusted to the outermost position of plane riser, respective place, after facilitating, place rock sample 9 and four pressure-bearing cushion blocks 8;
First end to end for wherein two pressure-bearing cushion blocks 8 is abutted on the riser 2 of location, right angle, 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 ensure that four pressure-bearing cushion blocks 8 are in end to end state;
Screw three the first clamping screws 5 and two the second clamping screws 6 successively, until four pressure-bearing cushion blocks 8 are after rock sample 9 firm grip, 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 now have just been in self-locking state, next the painting fluid sealant work of rock sample 9 end face can just be carried out, 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 the painting fluid sealant work carrying out rock sample 9 reverse side,
After the work of painting fluid sealant all completes, drying work is carried out in light and slow being sent in drying baker by the pressure-bearing cushion block 8 of the rock sample 9 and periphery thereof that coat fluid sealant, in the process, because pressure-bearing cushion block 8 completes self-locking by the 3rd clamping screw 7, in moving process, improve the stability of sealing state, between pressure-bearing cushion block 8 not easily occur displacement distortion, for follow-up test carry out smoothly provide possibility.
Wherein outer locking part still can be used for the pre-assembled clamping work of other rock samples, not only saves the use cost of pre-assembled clamp device thus, and the work efficiency completing the clamping of multiple rock sample pre-assembled also greatly improves.
Specific descriptions in the present embodiment are also not used 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 (2)
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 location, right angle riser, the first plane riser and the rectangular distribution of the second plane riser;
The quantity of described pressure-bearing cushion block is four, four end to end arrangements of pressure-bearing cushion block, is all connected by the 3rd clamping screw between every two adjacent pressure-bearing cushion blocks; Four pressure-bearing cushion blocks locate two right-angle sides of riser, the first plane riser and the second plane riser respectively with right angle corresponding;
Described 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 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 first clamping screw is at least two.
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 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 CN103822823A (en) | 2014-05-28 |
| CN103822823B true 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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| CN (1) | CN103822823B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104155183B (en) * | 2014-07-29 | 2016-06-22 | 中国科学院武汉岩土力学研究所 | The measuring method of sillar ejection trjectory and initial velocity in a kind of laboratory 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 |
| 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 |
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 |
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| CN103822823A (en) | 2014-05-28 |
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Granted publication date: 20160420 |