CN115628992A - Shearing device - Google Patents
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- CN115628992A CN115628992A CN202211225450.1A CN202211225450A CN115628992A CN 115628992 A CN115628992 A CN 115628992A CN 202211225450 A CN202211225450 A CN 202211225450A CN 115628992 A CN115628992 A CN 115628992A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The embodiment of the application provides a shearing mechanism includes: the shearing box group comprises an upper shearing box and a lower shearing box; the first fixing piece is sleeved on the upper shearing box; the second fixing piece is sleeved on the lower shearing box; the two mounting plate groups are respectively arranged on the first fixing piece and the second fixing piece, a placing space is formed in each mounting plate group and used for placing a sample, and a gap is formed between each sample and each mounting plate group; the sensor subassembly is connected in mounting plate group for the shear test parameter of test sample, wherein, the shear test parameter includes: relative position of specimen cracks. Through being fixed in first mounting and second mounting with mounting panel group, make the sample rigidity, guarantee that the shearing force is to the line of action of sample and the coincidence of the centroid of shearing the box, reduce the test error. The sensor assembly is arranged on the mounting plate set, the position of the sensor on the mounting plate set is adjusted according to test requirements, the mounting efficiency of the sensor is improved, and the mounting difficulty is reduced.
Description
Technical Field
The application relates to the technical field of geotechnical engineering tests, in particular to a shearing device.
Background
The shear characteristics of rock masses and soil bodies are important for stability evaluation of geotechnical engineering such as slope engineering and tunnel engineering, and at present, most of researches adopt an indoor direct shear test to obtain the shear characteristics and related parameters of the rock masses, so that bases are provided for test research needs and related work of later-stage numerical simulation.
In the prior art, the shearing box adopted in the direct shearing test is inconvenient for the installation and the disassembly operation of a sample, the installation space of sensors for detecting shearing parameters of the sample such as strain, acoustic emission and acceleration is not reserved, the sensors are required to be installed on the sample again in each shearing test, the installation is difficult and time-consuming, and the placing positions of rock samples are not uniform, so that the action line of the shearing force is difficult to coincide with the centroid of the shearing box, and the test result has errors.
Therefore, there is a need for a shearing device that at least partially solves the problems of the prior art.
Disclosure of Invention
A series of concepts in a simplified form are introduced in the summary section, which is described in further detail in the detailed description section. This summary of the invention is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
The present invention is directed to solving at least one of the problems of the prior art or the related art.
To this end, the invention provides a shearing device.
In view of this, according to an embodiment of the present application, there is provided a shearing apparatus including:
the shearing box group comprises an upper shearing box and a lower shearing box;
the first fixing piece is sleeved on the upper shearing box;
the second fixing piece is sleeved on the lower shearing box;
the two mounting plate groups are respectively arranged on the first fixing piece and the second fixing piece, a placing space is formed in each mounting plate group and used for placing a sample, and a gap is formed between each sample and each mounting plate group;
a sensor assembly coupled to the mounting plate set for detecting shear test parameters of the test sample, wherein the shear test parameters include: relative position of specimen cracks.
In one possible embodiment, the set of mounting plates comprises:
the two plate bodies are arranged in the first fixing piece or the second fixing piece in parallel, the placing space is formed between the two plate bodies, and gaps exist between the sample and the two plate bodies;
a plurality of grid holes are formed in the plate body, and the sensor assembly is connected to the plate body through the grid holes.
In one possible embodiment, the sensor assembly includes:
an acoustic emission sensor;
the cutting sleeve is sleeved on the acoustic emission sensor and provided with a clamping button, and the clamping button is connected to the plate body through the grid holes.
In a possible embodiment, the shearing device further comprises:
the top of the first fixing piece is provided with a first through hole, and the first pressure-bearing steel plate penetrates through the first through hole and abuts against the upper shearing box;
and the first oil pump is abutted to the first pressure-bearing steel plate and is used for applying a normal load to the upper shearing box.
In a possible embodiment, the shearing device further comprises:
the side walls of the first fixing piece and the second fixing piece are provided with second through holes, and the second pressure-bearing steel plate penetrates through the second through holes at the first fixing piece and abuts against the upper shearing box; the second pressure-bearing steel plate penetrates through the second through hole in the second fixing piece and abuts against the lower shearing box;
and the second oil pump is abutted to the second pressure-bearing steel plate and is used for applying tangential loads to the upper shearing box and the lower shearing box.
In a possible embodiment, the shearing device further comprises:
the first rod body is connected to one end, close to the second fixing piece, of the mounting plate group at the first fixing piece;
the second rod body is connected to one end, close to the first fixing part, of the mounting plate group at the second fixing part;
the sensor assembly further comprises a strain gauge sensor, wherein the strain gauge sensor is respectively arranged at the first rod body and the second rod body and is used for acquiring local instantaneous sliding strain data of the sample contact seam.
In a possible implementation manner, an angular groove is formed at an end surface of the first rod body and the second rod body, and the strain gauge sensor is arranged in the angular groove;
the angle of the angular groove is 40-50 degrees.
In a possible implementation manner, the first rod bodies are provided in plurality, the plurality of first rod bodies are arranged at intervals, and the gaps between the adjacent first rod bodies are equal;
the number of the second rod bodies is the same as that of the first rod bodies, and the positions of the second rod bodies correspond to that of the first rod bodies.
In one possible embodiment, the grid holes are square holes, and the length of each square hole is 1-3 cm; or
The grid holes are circular holes, and the diameter of each circular hole is 1-3 cm.
In a possible embodiment, the first fixing member, the second fixing member and the mounting plate group are made of transparent materials.
Compared with the prior art, the invention at least comprises the following beneficial effects: the shearing mechanism that this application embodiment provided is provided with shear box group, first mounting, second mounting, two mounting panel groups and sensor assembly. Wherein, the shear box group includes: the upper portion shearing box is located to first mounting cover, and the lower portion shearing box is located to second mounting cover, and first mounting and second mounting all are provided with mounting plate group, and mounting plate group is used for installing sensor assembly, and mounting plate group is formed with and places the space, can place the sample in placing the space, and normal load is applyed to the upper portion shearing box or tangential load is applyed to upper portion shearing box and/or lower portion shearing box to carry out shear test to the sample. The shear test parameters of the test sample are detected by the sensor assembly. So set up, through being fixed in first mounting and second mounting with mounting plate group for the sample rigidity, thereby guarantee the effect line of shearing force to the sample and the centroid coincidence of shearing the box, reduce experimental error, simultaneously, set up sensor assembly on mounting plate group, can be according to experimental requirement adjustment sensor position on mounting plate group can, need not to arrange the sensor on the sample, improve the installation effectiveness of sensor, reduce the installation degree of difficulty.
The shearing device of the present invention, and other advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the specification. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural diagram of a shearing device provided in an embodiment of the present application;
FIG. 2 is a schematic view of an angled assembly of a first fastener and a mounting plate set provided in accordance with an embodiment of the present disclosure;
FIG. 3 is a schematic view of another angle assembly of a first fastener and a mounting plate set provided in an embodiment of the present application;
FIG. 4 is a schematic view of an angle assembly of a second fixing member and a mounting plate set according to an embodiment of the present disclosure;
FIG. 5 is a schematic view of another angle assembly of a second fastener and a mounting plate set provided in accordance with an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a sensor assembly provided in an embodiment of the present application.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 6 is:
the shearing device comprises a 110 shearing box group, a 111 upper shearing box, a 112 lower shearing box, a 120 first fixing piece, a 121 first through hole, a 122 second through hole, a 130 second fixing piece, a 140 installation plate group, a 141 plate body, 142 grid holes, a 150 sensor assembly, a 151 acoustic emission sensor, a 152 clamping sleeve, a 153 clamping button, a 154 strain gauge sensor, a 160 first pressure-bearing steel plate, a 161 second pressure-bearing steel plate, a 170 first oil pump, a 171 second oil pump, a 180 first rod body, a 190 second rod body and a 200 sample.
Detailed Description
In order to better understand the technical solutions of the embodiments of the present application, the following detailed descriptions are provided with accompanying drawings and specific embodiments, and it should be understood that the specific features in the embodiments and examples of the present application are detailed descriptions of the technical solutions of the embodiments of the present application, but not limitations of the technical solutions of the present application, and the technical features in the embodiments and examples of the present application may be combined with each other without conflict.
As shown in fig. 1 to 5, according to an embodiment of the present application, there is provided a shearing apparatus including: a shear box group 110, the shear box group 110 including an upper shear box 111 and a lower shear box 112; a first fixing member 120 sleeved on the upper cutting box 111; a second fixing member 130 sleeved on the lower cutting box 112; two mounting plate groups 140 respectively disposed on the first fixture 120 and the second fixture 130, the mounting plate groups 140 forming a placing space for placing a sample 200, wherein a gap exists between the sample 200 and the mounting plate groups 140; a sensor assembly 150 connected to the mounting plate group 140 for detecting shear test parameters of the sample 200, wherein the shear test parameters include: relative position of crack for test specimen 200.
It is understood that the shearing apparatus provided in the embodiment of the present application is provided with the shearing box set 110, the first fixture 120, the second fixture 130, the two mounting plate sets 140, and the sensor assembly 150. Wherein, shear box group 110 includes: the shear test device comprises an upper shear box 111 and a lower shear box 112, wherein the upper shear box 111 is sleeved with a first fixing member 120, the lower shear box 112 is sleeved with a second fixing member 130, the first fixing member 120 and the second fixing member 130 are both provided with mounting plate groups 140, the mounting plate groups 140 are used for mounting sensor assemblies 150, a placing space is formed in each mounting plate group 140, a test sample 200 can be placed in the placing space, and a normal load is applied to the upper shear box 111 or a tangential load is applied to the upper shear box 111 and/or the lower shear box 112, so that a shear test is performed on the test sample 200. Shear test parameters of the test specimen 200 are sensed by the sensor assembly 150. So set up, through being fixed in first mounting 120 and second mounting 130 with mounting plate group 140 for sample 200 rigidity, thereby guarantee that the shearing force coincides with the centroid of shearing the box to the line of action of sample 200, reduce experimental error, simultaneously, set up sensor assembly 150 on mounting plate group 140, can according to experimental requirement adjust the position of sensor on mounting plate group 140 can, need not to arrange the sensor on sample 200, improve the installation effectiveness of sensor, reduce the installation degree of difficulty.
It can be understood that after the sample 200 is placed in the placing space, a gap exists between the sample 200 and the mounting plate group 140, so as to ensure that no friction is generated between the sample 200 and the mounting plate group 140, and ensure accurate test results.
It will be appreciated that the first fixing member 120 is fitted to the upper shear box 111, so that the force applied to the first fixing member 120 can be well transmitted to the upper shear box 111, while reducing the amount of deformation of the first fixing member 120 due to the force. Similarly, the second fixing member 130 is attached to the lower shear box 112. The mounting plate group 140 is arranged at the central position of the first fixing member 120 and the second fixing member 130, and meanwhile, the shear box group 110 is arranged at the central position of the shear apparatus for tangential and normal loading, so that the action line of the shear force on the test sample 200 is coincident with the centroid of the shear box, and the test result is accurate.
In some examples, as shown in fig. 1-5, the set of mounting plates 140 includes: two plate bodies 141, the two plate bodies 141 being disposed in parallel in the first fixing member 120 or the second fixing member 130, the placing space being formed between the two plate bodies 141, wherein a gap is formed between the sample 200 and each of the two plate bodies 141; the plate 141 is formed with a plurality of mesh holes 142, and the sensor unit 150 is connected to the plate 141 through the mesh holes 142.
It can be understood that the mounting plate set 140 is provided with two plate bodies 141, the two plate bodies 141 are arranged in parallel at the central position of the first fixing member 120 or the second fixing member 130, a placing space is formed between the two plate bodies 141 for placing the test sample 200, and the distance between the two plate bodies 141 can be adjusted according to the size of the test sample 200. Under the condition that the sample 200 is placed in the placing space, a gap is reserved between the sample 200 and the plate bodies 141 on the two sides, so that friction between the sample 200 and the plate bodies 141 is avoided, and the test accuracy is guaranteed. And a plurality of grid holes 142 are opened on the plate body 141, so that the sensor assembly 150 is connected to the plate body 141 through the grid holes 142, and for different samples 200 and test requirements, the position of the sensor assembly 150 relative to the sample 200 can be changed by corresponding the sensor assembly 150 to different grid holes 142. The size of each grid hole 142 is consistent, so that the grid holes 142 can be used as a scale for the moving distance of the sensor assembly 150, the sensor can move more quickly and accurately, and the test efficiency is improved.
In some examples, as shown in fig. 6, the sensor assembly 150 described above includes: an acoustic emission sensor 151; the sleeve 152 is disposed on the acoustic emission sensor 151, and the sleeve 152 is provided with a locking button 153, wherein the locking button 153 is connected to the board 141 through the mesh holes 142.
It will be appreciated that the sensor assembly 150 is provided with an acoustic emission sensor 151 which detects the relative position of cracks in the sample 200 generated by shear forces by emitting acoustic waves. Acoustic emission sensor 151 is located to cutting ferrule 152 cover, and the one end of cutting ferrule 152 is provided with card button 153, and the shape of card button 153 and net hole 142 is unanimous, and card button 153 and net hole 142 interference fit to be fixed in net hole 142 department with acoustic emission sensor 151 through card button 153, guarantee that acoustic emission sensor 151 and sample 200 closely laminate, prevent the test in-process simultaneously, acoustic emission sensor 151 drops, improve the reliability.
It can be understood that a plurality of acoustic emission sensors 151 may be disposed at the grid holes 142 at the same time to form a detection matrix, so as to ensure the comprehensiveness of the detected data and improve the accuracy of the test result.
In some examples, as shown in fig. 1 to 3, the shearing device further includes: a first pressure-bearing steel plate 160, a first through hole 121 being opened at a top of the first fixing member 120, the first pressure-bearing steel plate 160 being abutted to the upper shear box 111 through the first through hole 121; and a first oil pump 170 abutting against the first pressure receiving steel plate 160 and applying a normal load to the upper shear box 111.
It can be understood that the shearing apparatus is further provided with a first bearing steel plate 160, specifically, a first through hole 121 is formed at the top of the first fixing member 120, and the first bearing steel plate 160 is abutted to the upper shear box 111 through the first through hole 121 to fix the position of the upper shear box 111 and prevent the upper shear box 111 from moving. Meanwhile, the shear apparatus applies a normal load to the upper shear box 111 through the first oil pump 170, so that the uniform and stable stress of the upper shear box 111 is ensured.
It is understood that the first through hole 121 may be a rectangular hole, and the size of the square hole may be adjusted according to the size of the pressure-bearing steel plate, for example, the size of the rectangular hole is 60mm long and 45mm wide, and the size of the pressure-bearing steel plate is slightly smaller than the size of the rectangular hole so as to pass through the rectangular hole.
In some examples, as shown in fig. 1 to 5, the shearing device further includes: a second pressure-bearing steel plate 161, wherein second through holes 122 are formed in sidewalls of the first fixing member 120 and the second fixing member 130, and the second pressure-bearing steel plate 161 passes through the second through holes 122 of the first fixing member 120 and abuts against the upper shear box 111; the second pressure-bearing steel plate 161 is inserted through the second through hole 122 of the second fixing member 130 and abuts against the lower shear box 112; and a second oil pump 171 which is in contact with the second pressure-receiving steel plate 161 and applies a tangential load to the upper shear box 111 and the lower shear box 112.
It is understood that the shearing apparatus is further provided with a second bearing steel plate 161 and a second oil pump 171. Specifically, the opposite side walls of the first fixing member 120 and the second fixing member 130 are respectively provided with a second through hole 122, the second pressure-bearing steel plate 161 can pass through the second through hole 122 of the first fixing member 120 and abut against the upper shear box 111, the second pressure-bearing steel plate 161 can pass through the second through hole 122 of the second fixing member 130 and abut against the lower shear box 112, and the shear apparatus abuts against the second pressure-bearing steel plate 161 through the second oil pump 171 to apply tangential loads to the upper shear box 111 and the lower shear box 112 respectively, so that the local instantaneous slip strain of the contact seam of the sample 200 can be analyzed subsequently, and the correlation law of the analysis of the slip of the fault can be simulated. And the stress in the tangential direction is ensured to be uniform, so that the error of test data is reduced, and the accuracy is improved.
It will be appreciated that in a shear test for analyzing the local slip pattern of a fault, the sample 200 may be divided into two parts, and the junction of the two parts of the sample 200 is the junction of the upper shear box 111 and the lower shear box 112. Tangential loads in opposite directions are applied to the upper shear box 111 and the lower shear box 112 respectively, and fault slippage can be simulated.
In some examples, as shown in fig. 1 to 5, the shearing apparatus further includes: a first rod 180 connected to one end of the mounting plate set 140 near the second fixing member 130 at the first fixing member 120; a second rod 190 connected to one end of the mounting plate set 140 near the first fixing member 120 at the second fixing member 130; the sensor assembly 150 further includes a strain gauge sensor 154, and the strain gauge sensor 154 is respectively disposed at the first rod 180 and the second rod 190 for collecting local instantaneous sliding strain data of the contact seam of the sample 200.
It is understood that the shearing apparatus is further provided with a first rod 180 and a second rod 190, wherein the first rod 180 is connected to one end of the mounting plate set 140 at the first fixing member 120 close to the second fixing member 130, and the second rod 190 is connected to one end of the mounting plate set 140 at the second fixing member 130 close to the first fixing member 120, so that in the case of the shearing test for analyzing the local slip law of the fault, the first rod 180 abuts against the sample 200 at the upper part of the shear box 111, and the second rod 190 abuts against the sample 200 at the lower part of the shear box 112. The sensor assembly 150 is further provided with a strain gauge sensor 154, and the strain gauge sensor 154 is arranged on the first rod body and the second rod body 190 so as to respectively detect local instant sliding strain of the contact seam of the two parts of the samples 200 after the two parts of the samples 200 are subjected to tangential load, thereby simulating and analyzing the related law of fault sliding. Through the fixed foil gage sensor 154 of first body of rod 180 and second body of rod 190, guarantee that foil gage sensor 154 only detects the sample 200 strain slip of shearing direction, avoid receiving normal load's influence, guarantee that the detection data is accurate.
In some examples, the first rod 180 and the second rod 190 have an angular groove formed at an end surface thereof, and the strain gauge sensor 154 is disposed in the angular groove; the angle of the angular groove is 40 to 50 degrees.
It can be understood that the end faces of the first rod body 180 and the second rod body 190 are provided with angle grooves, the angle range of the angle grooves is 40-50 degrees, 45 degrees is preferably selected, the strain gauge sensor 154 can be conveniently pasted through the angle grooves, meanwhile, the pasting angle accuracy is guaranteed, accurate data are provided for later analysis, and data caused by damage of the sample 200 in the test process can be avoided.
In some examples, as shown in fig. 4 and 5, the first rod 180 is provided in plurality, the first rods 180 are arranged at intervals, and the adjacent first rods 180 have equal gaps; the number of the second rods 190 is the same as that of the first rods 180, and the positions of the second rods 190 correspond to those of the first rods 180.
It can be understood that, so set up, can make the foil gage sensor 154 that first body of rod 180 and second body of rod 190 set up the position and correspond, detect two parts sample 200 through a plurality of foil gage sensors 154 and after receiving tangential load, contact the local strain of sliding in the twinkling of an eye of the many positions of seam, can obtain a large amount of test data support when guaranteeing the simulation analysis fault rule of sliding, guarantee the result accuracy.
In some examples, the mesh holes 142 are square holes, and the length of the square holes is 1 cm to 3 cm; or the mesh holes 142 are circular holes having a diameter of 1 cm to 3 cm.
It can be understood that the grid holes 142 can be square holes or circular holes according to actual requirements, the same shape of the locking button 153 is consistent with the shape of the grid holes 142, the side length of the square holes is 1 cm to 3 cm, and the diameter of the circular holes is 1 cm to 3 cm. And the spacing of the grid holes 142 is adjusted according to the experimental requirements.
In some examples, the first fixing member 120, the second fixing member 130, and the mounting plate group 140 are made of transparent materials.
It is understood that the first fixing member 120, the second fixing member 130 and the mounting plate may be made of transparent materials so as to observe the state of the test sample 200 during the shear test.
For example, an acryl material may be selected, and the first fixing member 120 and the second fixing member 130 may have a thickness of 0.5 cm to 2 cm according to a test load, and have advantages of high transparency and easy machining.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A shearing device, comprising:
the shearing box group comprises an upper shearing box and a lower shearing box;
the first fixing piece is sleeved on the upper shearing box;
the second fixing piece is sleeved on the lower shearing box;
the two mounting plate groups are respectively arranged on the first fixing piece and the second fixing piece, a placing space is formed in each mounting plate group and used for placing a sample, and a gap is formed between each sample and each mounting plate group;
a sensor assembly coupled to the mounting plate set for detecting shear test parameters of the test sample, wherein the shear test parameters include: relative position of specimen cracks.
2. The clipping apparatus of claim 1, wherein the set of mounting plates includes:
the two plate bodies are arranged in the first fixing piece or the second fixing piece in parallel, the placing space is formed between the two plate bodies, and gaps exist between the sample and the two plate bodies;
a plurality of grid holes are formed in the plate body, and the sensor assembly is connected to the plate body through the grid holes.
3. The clipping apparatus of claim 1, wherein the sensor assembly comprises:
an acoustic emission sensor;
the cutting sleeve is sleeved on the acoustic emission sensor and provided with a clamping button, and the clamping button is connected to the plate body through the grid holes.
4. The shearing device of claim 1, further comprising:
the top of the first fixing piece is provided with a first through hole, and the first pressure-bearing steel plate penetrates through the first through hole and abuts against the upper shearing box;
and the first oil pump is abutted to the first pressure-bearing steel plate and is used for applying a normal load to the upper shearing box.
5. The shearing device of claim 1, further comprising:
the side walls of the first fixing piece and the second fixing piece are provided with second through holes, and the second pressure-bearing steel plate penetrates through the second through holes in the first fixing piece and abuts against the upper shearing box; the second pressure-bearing steel plate penetrates through the second through hole in the second fixing piece and abuts against the lower shearing box;
and the second oil pump is abutted to the second pressure-bearing steel plate and is used for applying tangential load to the upper shearing box and the lower shearing box.
6. The shearing device of claim 2, further comprising:
the first rod body is connected to one end, close to the second fixing part, of the mounting plate group at the first fixing part;
the second rod body is connected to one end, close to the first fixing part, of the mounting plate group at the second fixing part;
the sensor assembly further comprises a strain gauge sensor, wherein the strain gauge sensor is respectively arranged at the first rod body and the second rod body and is used for acquiring local instantaneous sliding strain data of the sample contact seam.
7. The shearing device of claim 6,
the end surfaces of the first rod body and the second rod body are provided with angle grooves, and the strain gauge sensors are arranged in the angle grooves;
the angle of the angular groove is 40-50 deg.
8. The shearing device of claim 6,
the first rod bodies are arranged in a plurality and are arranged at intervals, and the gaps between the adjacent first rod bodies are equal;
the number of the second rod bodies is the same as that of the first rod bodies, and the positions of the second rod bodies correspond to that of the first rod bodies.
9. The shearing device of claim 2,
the grid holes are square holes, and the length of each square hole is 1-3 cm; or
The grid holes are circular holes, and the diameter of each circular hole is 1-3 cm.
10. The shearing device of claim 2,
the first fixing piece, the second fixing piece and the mounting plate group are made of transparent materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211225450.1A CN115628992A (en) | 2022-10-09 | 2022-10-09 | Shearing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211225450.1A CN115628992A (en) | 2022-10-09 | 2022-10-09 | Shearing device |
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| Publication Number | Publication Date |
|---|---|
| CN115628992A true CN115628992A (en) | 2023-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211225450.1A Pending CN115628992A (en) | 2022-10-09 | 2022-10-09 | Shearing device |
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| CN (1) | CN115628992A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117214004A (en) * | 2023-11-07 | 2023-12-12 | 西南交通大学 | Rock shear strength and creep deformation measuring method and related device |
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2022
- 2022-10-09 CN CN202211225450.1A patent/CN115628992A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117214004A (en) * | 2023-11-07 | 2023-12-12 | 西南交通大学 | Rock shear strength and creep deformation measuring method and related device |
| CN117214004B (en) * | 2023-11-07 | 2024-02-13 | 西南交通大学 | Rock shear strength and creep deformation measuring method and related device |
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