CN212432783U - Stratified rock mass annular strain multipoint testing device - Google Patents
Stratified rock mass annular strain multipoint testing device Download PDFInfo
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- CN212432783U CN212432783U CN202021582763.9U CN202021582763U CN212432783U CN 212432783 U CN212432783 U CN 212432783U CN 202021582763 U CN202021582763 U CN 202021582763U CN 212432783 U CN212432783 U CN 212432783U
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Abstract
The utility model discloses a stratified rock body circumferential strain multipoint testing device, which comprises a synchronous deformation belt for annularly sleeving a stratified rock body sample, wherein the opening end of the synchronous deformation belt is connected with a force cell, and the force cell is electrically connected with a test control device; the synchronous deformation belts are at least two, and the number of the force measuring sensors is the same as that of the synchronous deformation belts. The utility model discloses can carry out the multiple measuring point test hoop to stratiform rock mass sample and meet an emergency, guarantee that stratiform rock mass sample hoop strain test data satisfies follow-up rock mechanics data analysis precision when carrying out unipolar, triaxial compression test.
Description
Technical Field
The utility model relates to a rock mass measuring equipment especially relates to a layered rock mass hoop is to strain test device.
Background
When carrying out conventional unipolar, triaxial compression test to the rock sample, mainly carry out the measurement of rock sample hoop strain through fixed point hoop strainometer at present, and can only measure the hoop strain of a position of sample, to conventional rock sample, because there is not structural plane's existence, fixed point hoop strainometer can satisfy the rock sample that does not contain the structural plane and carry out the hoop strain measurement of conventional unipolar, triaxial compression sample.
For the rock sample containing the structural plane, the existence of the structural plane causes the stratified rock mass to have obvious anisotropy, so under the condition of axial stress, the rock sample has deformation with great difference under different structural plane angle conditions, and different heights of the sample have deformation, therefore, the fixed point annular strain gauge which can only monitor a single point cannot meet the annular strain test of the stratified rock mass in the uniaxial and triaxial compression tests, so that the annular strain gauge which can only test one point is required to be improved to meet the annular strain test precision requirement of the stratified rock mass in the uniaxial and triaxial tests.
The existing hoop strain measurement is single-point measurement for a conventional rock sample, and has certain limitation and deficiency for the sample with a structural surface.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a stratiform rock mass hoop is to strain test device can carry out the multiple measuring point test hoop to stratiform rock mass sample and meet an emergency, has guaranteed that stratiform rock mass sample hoop strain test data satisfies follow-up rock mechanics data analysis precision when carrying out unipolar, triaxial compression test.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model discloses a stratified rock mass hoop strain testing device, which comprises a synchronous deformation belt for annularly sleeving a stratified rock mass sample, wherein the opening end of the synchronous deformation belt is connected with a force cell, and the force cell is electrically connected with a test control device; the synchronous deformation belts are at least two, and the number of the force measuring sensors is the same as that of the synchronous deformation belts.
Preferably, the signal output line of the force measuring sensor is positioned in the steel pipe, and the force measuring sensor and the test control device are both arranged on the steel pipe.
Preferably, the steel pipes comprise horizontal steel pipes and vertical steel pipes, the horizontal steel pipes are connected with the vertical steel pipes, the horizontal steel pipes are communicated with the interior of the vertical steel pipes, the force measuring sensors are installed at the free ends of the horizontal steel pipes, the number of the horizontal steel pipes is the same as that of the force measuring sensors, and the test control device is installed on the vertical steel pipes.
Preferably, the load cell is a resistance strain gauge tension sensor.
Further preferably, the resistance strain type tension sensor is a threaded bolt type tension sensor, and a bolt of the threaded bolt type tension sensor is connected with the synchronous deformation belt through a hanging ring and a lifting hook.
Preferably, the synchronous deformation belt is an elastic band.
Preferably, the simultaneous deformation has 5.
The utility model has the advantages as follows:
1. because the difference of deformation is great in not co-altitude department for the stratiform rock test piece that has the joint rock mass, the utility model discloses can carry out multiple measuring points test hoop to stratiform rock mass sample and meet an emergency, guarantee that stratiform rock mass sample hoop strain test data satisfies follow-up rock mechanics data analysis precision when carrying out unipolar, triaxial compression test.
2. The synchronous deformation test material adopts an elastic rubber belt, adopts a steel pipe frame (formed by connecting a horizontal steel pipe and a vertical steel pipe) to fix the test equipment and guide a lead, has lower cost and simple structure, and the whole device is fixed into a whole, so that the test operation is more convenient.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic view of the connection of a load cell to a synchronous deformation belt.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings.
As shown in fig. 1, the utility model discloses a stratified rock mass hoop strain test device, including being used for the hoop to entangle the synchronous deformation area 2 of stratified rock mass sample 1, synchronous deformation area 2 adopts the elasticity rubber band, and the open end of synchronous deformation area 2 connects force cell 4, and force cell 4 is connected with test control device 6 electricity; the synchronous deformation belts 2 have at least two, preferably 5, load cells 4, the number of which is the same as the number of synchronous deformation belts 2.
A signal output line 7 of the force measuring sensor 4 is positioned in the steel pipe 5, the steel pipe 5 comprises a horizontal steel pipe and a vertical steel pipe, the horizontal steel pipe is connected with the vertical steel pipe, the horizontal steel pipe is communicated with the interior of the vertical steel pipe, the force measuring sensor 4 is arranged at the free end of the horizontal steel pipe, the number of the horizontal steel pipes is the same as that of the force measuring sensors 4, and the test control device 6 is arranged on the vertical steel pipe; the test control device 6 is provided with a test data signal outgoing line 8.
As shown in fig. 2, the force sensor 4 is a resistance strain type force sensor, the resistance strain type force sensor is a threaded bolt type force sensor, a hanging ring 11 is arranged on a bolt 9 of the threaded bolt type force sensor, and two ends of the synchronous deformation belt 2 are provided with lifting hooks 10.
The utility model discloses a use method and theory of operation as follows: the synchronous deformation belt 2 is sleeved on the stratified rock mass sample 1 containing the joints 3 in an annular mode, and the annular strain of the stratified rock mass sample 1 is detected through the force measuring sensor 4.
Of course, the present invention may have other embodiments, and those skilled in the art may make various corresponding changes and modifications according to the present invention without departing from the spirit and the essence of the present invention, and these corresponding changes and modifications should fall within the protection scope of the appended claims.
Claims (7)
1. Stratified rock mass hoop strain multiple spot testing arrangement, its characterized in that: the device comprises a synchronous deformation belt used for annularly sleeving a stratified rock mass sample, wherein the tail end of an opening of the synchronous deformation belt is connected with a force transducer, and the force transducer is electrically connected with a test control device; the synchronous deformation belts are at least two, and the number of the force measuring sensors is the same as that of the synchronous deformation belts.
2. The stratified rock mass circumferential strain multipoint testing device of claim 1, characterized in that: and a signal output line of the force measuring sensor is positioned in the steel pipe, and the force measuring sensor and the test control device are both arranged on the steel pipe.
3. The stratified rock mass circumferential strain multipoint testing device of claim 2, characterized in that: the steel pipes comprise horizontal steel pipes and vertical steel pipes, the horizontal steel pipes are connected with the vertical steel pipes, the horizontal steel pipes are communicated with the interior of the vertical steel pipes, the force measuring sensors are installed at the free ends of the horizontal steel pipes, the number of the horizontal steel pipes is the same as that of the force measuring sensors, and the test control device is installed on the vertical steel pipes.
4. The stratified rock mass circumferential strain multipoint testing device of claim 1, characterized in that: the force measuring sensor is a resistance strain type tension sensor.
5. The stratified rock mass circumferential strain multipoint testing device of claim 4, characterized in that: the resistance strain type tension sensor is a threaded bolt type tension sensor, and a bolt of the threaded bolt type tension sensor is connected with a synchronous deformation belt through a lifting ring and a lifting hook.
6. The stratified rock mass circumferential strain multipoint testing device of claim 1, characterized in that: the synchronous deformation belt is an elastic band.
7. The stratified rock mass circumferential strain multipoint testing device of claim 1, characterized in that: the synchronous deformation has 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021582763.9U CN212432783U (en) | 2020-08-03 | 2020-08-03 | Stratified rock mass annular strain multipoint testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021582763.9U CN212432783U (en) | 2020-08-03 | 2020-08-03 | Stratified rock mass annular strain multipoint testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212432783U true CN212432783U (en) | 2021-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202021582763.9U Active CN212432783U (en) | 2020-08-03 | 2020-08-03 | Stratified rock mass annular strain multipoint testing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN212432783U (en) |
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2020
- 2020-08-03 CN CN202021582763.9U patent/CN212432783U/en active Active
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