CN219977614U - Device for closely attaching recyclable auxiliary drilling stress gauge to hole wall - Google Patents
Device for closely attaching recyclable auxiliary drilling stress gauge to hole wall Download PDFInfo
- Publication number
- CN219977614U CN219977614U CN202320886462.2U CN202320886462U CN219977614U CN 219977614 U CN219977614 U CN 219977614U CN 202320886462 U CN202320886462 U CN 202320886462U CN 219977614 U CN219977614 U CN 219977614U
- Authority
- CN
- China
- Prior art keywords
- bearing plate
- groups
- outer bearing
- pressure
- hole wall
- 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.)
- Active
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 34
- 238000005253 cladding Methods 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- 238000010030 laminating Methods 0.000 claims 1
- 239000011148 porous material Substances 0.000 claims 1
- 239000011435 rock Substances 0.000 abstract description 11
- 230000008602 contraction Effects 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 abstract description 4
- 238000004064 recycling Methods 0.000 abstract description 2
- 239000003245 coal Substances 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The utility model provides a device for closely attaching a recyclable auxiliary drilling stress meter to a hole wall, and belongs to the technical field of surrounding rock stress measurement. Including interior bearing plate and outer bearing plate, interior bearing plate is provided with four groups, outer bearing plate is provided with four groups, four groups outer bearing plate cladding sets up four groups in the outside of interior bearing plate, four groups first recess has all been seted up to the surface of interior bearing plate, four groups second recess has all been seted up to the internal surface of outer bearing plate, four groups outer bearing plate and four groups connect through the pressure-bearing pillar between the interior bearing plate, the one end rotation of pressure-bearing pillar sets up in the first recess, the other end slip of pressure-bearing pillar sets up in the second recess, four groups all be provided with wire rope between the outer bearing plate. The utility model utilizes the expansion and contraction of the pressure pillow to automatically open and close the inner bearing plate and the outer bearing plate, realizes the functions of recycling and reutilization, and reduces the use cost.
Description
Technical Field
The utility model relates to the field of surrounding rock stress measurement, in particular to a device for tightly attaching a recyclable auxiliary drilling stress meter to a hole wall.
Background
A large number of engineering practices show that the drilling stress meter is an effective means for measuring the stress of surrounding rock, and is widely applied to prevention and treatment of coal and gas outburst, monitoring of coal pillar stability, monitoring of stress variation of a top plate and a bottom plate, monitoring of advanced pressure of a working face and the like.
The drilling stress meter has the advantages of convenience in installation, stability in work, simplicity in operation and the like. When measuring the surrounding rock stress, whether a gap exists between the drilling stress gauge and the hole wall or not has great influence on the measuring result of the surrounding rock stress. This is because the change in the measured coal rock mass stress is manifested by a small deformation of the borehole, so the pressure pillow in the borehole stress gauge must be in close contact with the borehole wall, and no gap is allowed to exist. In order to improve the accuracy of the surrounding rock stress measurement results, the gap between the borehole stress meter and the hole wall needs to be treated.
However, in practical engineering application, because the wall of the drilled hole is rough, not only is the pressure pillow difficult to be tightly attached to the wall of the hole, but also the rough wall of the hole can lead to uneven stress of the pressure pillow and even cause cracking and damage of the pressure pillow. Therefore, aiming at the defects, the device for closely attaching the hole wall of the recyclable auxiliary drilling stress meter is provided, and the problems that a pressure pillow is difficult to be tightly attached to the hole wall, the stress of the pressure pillow is uneven, the recycling is impossible and the like are overcome.
Disclosure of Invention
In order to make up for the defects, the utility model provides a device for closely attaching a hole wall by a recyclable auxiliary drilling stress meter, and aims to solve the problems that in the prior art, a pressure pillow is difficult to be closely attached to the hole wall, the stress of the pressure pillow is uneven, the recovery is difficult, and the like.
The embodiment of the utility model provides a hole wall fitting device for a recoverable auxiliary drilling stress gauge, which comprises an inner bearing plate and an outer bearing plate, wherein the inner bearing plate is provided with four groups, the outer bearing plate is provided with four groups, the four groups of the outer bearing plates are arranged on the outer sides of the four groups of the inner bearing plates in a coating mode, the outer surfaces of the four groups of the inner bearing plates are provided with first grooves, the inner surfaces of the four groups of the outer bearing plates are provided with second grooves, the four groups of the outer bearing plates and the four groups of the inner bearing plates are connected through bearing struts, one end of each bearing strut is rotatably arranged in the first groove, the other end of each bearing strut is slidably arranged in the second groove, steel wire ropes are arranged between the four groups of the outer bearing plates, one end of each steel wire rope is fixedly arranged on each bearing strut, springs are arranged in the second grooves, and one ends of the springs are fixedly arranged on the bearing struts.
In the realization process, according to actual conditions, the expansion and the contraction of the pressure pillow are utilized to realize the automatic expansion and the closing functions of the inner bearing plate and the outer bearing plate, when the pressure pillow is expanded, the inner bearing plate and the outer bearing plate are opened to fill the gap between the hole wall and the drilling stress gauge, and the surrounding rock stress is conducted onto the pressure pillow through the device, when the pressure pillow is contracted, the inner bearing plate and the outer bearing plate are closed, so that the situation that the pressure pillow is broken and damaged is prevented from being caused due to uneven stress of the pressure pillow.
In a specific embodiment, four groups of the inner bearing plates are all arranged as arc-shaped steel plates, and the four groups of the inner bearing plates are spliced into a complete circle.
In a specific embodiment, four groups of the outer bearing plates are all arranged as arc-shaped steel plates, and the four groups of the outer bearing plates are spliced into a complete circle.
In a specific embodiment, the pressure-bearing strut comprises a stand column, a rotating block and a sliding block, wherein the stand column is arranged between the outer bearing plate and the inner bearing plate, the rotating block and the sliding block are integrally formed and arranged at two ends of the stand column, and one end of the spring and one end of the steel wire rope are fixedly arranged on the sliding block.
In a specific embodiment, a pin is fixedly arranged on the rotating block, and the rotating block is rotatably arranged in the first groove through the pin.
In a specific embodiment, an insert block is welded at the end of the sliding block, a sliding groove is formed in the inner wall of the second groove, and the insert block is slidably arranged in the sliding groove.
In a specific embodiment, a through groove for sliding the steel wire rope is formed between the inner part of the outer bearing plate and the second groove.
In a specific embodiment, the pressure struts are provided with four sets between each of the outer bearing plate and the inner bearing plate.
Compared with the prior art, the utility model has the beneficial effects that:
the device for closely attaching the recyclable auxiliary drilling stress gauge to the hole wall has the advantages of simple structure, reliable performance, lower cost, suitability for drilling holes with different diameters and strong applicability; according to the actual situation, the expansion and contraction of the pressure pillow are utilized to realize the automatic expansion and closing functions of the inner bearing plate and the outer bearing plate, when the pressure pillow expands, the inner bearing plate and the outer bearing plate are opened to fill the gap between the hole wall and the drilling stress gauge and conduct the surrounding rock stress to the pressure pillow through the device, and when the pressure pillow contracts, the inner bearing plate and the outer bearing plate are closed, so that the situation that the pressure pillow is broken and damaged due to uneven stress of the pressure pillow is prevented; in addition, the device and the drilling stress meter can be taken out together, so that the cyclic utilization is realized, and the cost is reduced to the greatest extent.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a cross-sectional view of an apparatus according to an embodiment of the present utility model in an initial state;
FIG. 2 is a cross-sectional view of an apparatus according to an embodiment of the present utility model;
FIG. 3 is a cross-sectional view of a portion of the structure of an outer and inner bearing plate according to an embodiment of the present utility model;
FIG. 4 is a top cross-sectional view of the outer bearing plate portion of FIG. 3 provided in accordance with an embodiment of the present utility model;
FIG. 5 is a top view of the inner bearing plate portion of FIG. 3 according to an embodiment of the present utility model;
fig. 6 is an enlarged view at a in fig. 4 provided in an embodiment of the present utility model.
In the figure: 1. an inner bearing plate; 2. an outer bearing plate; 3. a first groove; 4. a second groove; 41. a chute; 5. a pressure-bearing support column; 51. a column; 52. a rotating block; 521. a pin shaft; 53. a slide block; 531. inserting blocks; 6. a wire rope; 7. a spring; 8. and (5) through grooves.
Detailed Description
The technical solutions in the embodiments of the present utility model will be described below with reference to the accompanying drawings in the embodiments of the present utility model.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
Referring to fig. 1-6, the utility model provides a hole wall fitting device for a recoverable auxiliary drilling stress gauge, which comprises an inner bearing plate 1 and an outer bearing plate 2, wherein the inner bearing plate 1 is provided with four groups, the outer bearing plate 2 is coated and arranged on the outer sides of the inner bearing plates 1, the outer surfaces of the inner bearing plates 1 are provided with first grooves 3, the inner surfaces of the outer bearing plates 2 are provided with second grooves 4, the outer bearing plates 2 and the inner bearing plates 1 are connected through bearing struts 5, one ends of the bearing struts 5 are rotatably arranged in the first grooves 3, the other ends of the bearing struts 5 are slidably arranged in the second grooves 4, steel wire ropes 6 are respectively arranged between the outer bearing plates 2, one ends of the steel wire ropes 6 are fixedly arranged on the bearing struts 5, the inner surfaces of the second grooves 4 are provided with springs 7, and one ends of the springs 7 are fixedly arranged on the bearing struts 5.
Specifically, for the convenience to carry out the cladding to the pressure pillow, and make the pressure pillow atress even, four sets of interior bearing plate 1 all set up to circular-arc steel sheet, and four sets of interior bearing plate 1 splice into a complete circle.
When specifically setting up, for convenient cladding to the pressure pillow, and make the pressure pillow atress even, four groups outer bearing plate 2 all set up to circular-arc steel sheet, and four groups outer bearing plate 2 concatenation is a complete circle.
In order to enable the rotating block 52 to rotate in the first groove 3 and the sliding block 53 to slide in the second groove 4, the pressure-bearing strut 5 includes a column 51, the rotating block 52 and the sliding block 53, the column 51 is disposed between the outer bearing plate 2 and the inner bearing plate 1, the rotating block 52 and the sliding block 53 are integrally formed at two ends of the column 51, and one end of the spring 7 and one end of the wire rope 6 are fixedly disposed on the sliding block 53; a pin shaft 521 is fixedly arranged on the rotating block 52, and the rotating block 52 is rotatably arranged in the first groove 3 through the pin shaft 521; the end part of the sliding block 53 is welded with an inserting block 531, a sliding groove 41 is formed in the inner wall of the second groove 4, and the inserting block 531 is slidably arranged in the sliding groove 41.
In some specific embodiments, in order to facilitate the sliding of the steel wire rope 6, the storage and the opening of the steel wire rope 6 are not affected, and a through groove 8 for the sliding of the steel wire rope 6 is formed between the inner part of the outer bearing plate 2 and the second groove 4.
In other embodiments, to increase stability when deployed, the pressure struts 5 are provided with four sets between each of the outer bearing plates 2 and the inner bearing plates 1 for increased strength.
The utility model also provides a use method of the device for closely attaching the recyclable auxiliary drilling stress meter to the hole wall, which comprises the following steps:
s1, placing a drilling stress gauge in an inner bearing plate 1 and sending the drilling stress gauge into a designated position in a drilling hole together so that the pressure is rested on the inner side of the inner bearing plate 1;
s2, pressurizing the pressure pillow to expand, separating the inner bearing plate 1 from the outer bearing plate 2 after the pressure pillow is expanded, and enabling the steel wire rope 6 to pull the sliding block 53 to move so as to enable the insertion block 531 to slide from one end of the sliding groove 41 to the other end, wherein the upright post 51 jacks up the outer bearing plate 2 and enables the outer bearing plate 2 to be in close contact with the hole wall, the inner bearing plate 1 is in close contact with the pressure pillow, and surrounding rock stress is conducted to the drilling stress gauge through the device;
s3, after the measurement is finished, the pressure pillow is relieved, tension is lost in the steel wire rope 6, the spring 7 pulls the sliding block 53 back to the original position, the inner bearing plate 1 and the outer bearing plate 2 are closed again, and the initial state is restored;
s4, recovering the drilling stress gauge and the device from the drilling so as to facilitate repeated use.
The principle and the advantages of the utility model:
the device for tightly attaching the recoverable auxiliary drilling stress gauge to the hole wall has the advantages of simple structure, reliable performance and lower cost, is suitable for drilling holes with different diameters, has strong applicability, and can realize the functions of automatic expansion and closing of the inner bearing plate 1 and the outer bearing plate 2 by utilizing the expansion and the contraction of the pressure pillow according to actual conditions, when the pressure pillow expands, the inner bearing plate 1 and the outer bearing plate 2 are opened, the gap between the hole wall and the drilling stress gauge is filled, and the surrounding rock stress is transmitted to the pressure pillow through the device, when the pressure pillow contracts, the inner bearing plate 1 and the outer bearing plate 2 are closed, so that the situation that the pressure pillow is stressed unevenly and the pressure pillow is broken and damaged is prevented; in addition, the device and the drilling stress meter can be taken out together, so that the cyclic utilization is realized, and the cost is reduced to the greatest extent.
The above description is only an example of the present utility model and is not intended to limit the scope of the present utility model, and various modifications and variations will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (8)
1. The utility model provides a recoverable supplementary drilling stress meter closely laminating pore wall device, its characterized in that, including interior bearing plate (1) and outer bearing plate (2), interior bearing plate (1) is provided with four groups, outer bearing plate (2) are provided with four groups, four groups outer bearing plate (2) cladding sets up in four groups in the outside of interior bearing plate (1), four groups first recess (3) have all been seted up to the surface of interior bearing plate (1), four groups second recess (4) have all been seted up to the internal surface of outer bearing plate (2), four groups outer bearing plate (2) and four groups connect through pressure-bearing pillar (5) between interior bearing plate (1), the one end rotation of pressure-bearing pillar (5) sets up in first recess (3), the other end slip of pressure-bearing pillar (5) sets up in second recess (4), four groups all be provided with wire rope (6) between outer bearing plate (2), the one end of wire rope (6) is fixed to be set up on the support pillar (5) the one end of pressure-bearing pillar (5) is fixed on the inside (7) is provided with pressure-bearing spring (7).
2. The hole wall closely fitting device for the recoverable auxiliary drilling stress gauge according to claim 1, wherein four groups of inner bearing plates (1) are all arc-shaped steel plates, and the four groups of inner bearing plates (1) are spliced into a complete circle.
3. The hole wall closely fitting device for the recoverable auxiliary drilling stress gauge according to claim 1, wherein four groups of the outer bearing plates (2) are all arc-shaped steel plates, and the four groups of the outer bearing plates (2) are spliced into a complete circle.
4. The hole wall fitting device for the recoverable auxiliary drilling stress gauge according to claim 1, wherein the pressure-bearing support column (5) comprises a column (51), a rotating block (52) and a sliding block (53), the column (51) is arranged between the outer bearing plate (2) and the inner bearing plate (1), the rotating block (52) and the sliding block (53) are integrally formed at two ends of the column (51), and one end of the spring (7) and one end of the steel wire rope (6) are fixedly arranged on the sliding block (53).
5. The device for closely fitting the hole wall with the recoverable auxiliary drilling stress gauge according to claim 4, wherein a pin shaft (521) is fixedly arranged on the rotating block (52), and the rotating block (52) is rotatably arranged in the first groove (3) through the pin shaft (521).
6. The device for closely attaching the recoverable auxiliary drilling stress gauge to the hole wall according to claim 4, wherein an insert (531) is welded at the end of the slider (53), a sliding groove (41) is formed in the inner wall of the second groove (4), and the insert (531) is slidably arranged in the sliding groove (41).
7. The device for closely fitting the recoverable auxiliary drilling stress gauge on the hole wall according to claim 1, wherein a through groove (8) for sliding the steel wire rope (6) is formed between the inner part of the outer bearing plate (2) and the second groove (4).
8. A recoverable auxiliary borehole stress gauge close fitting hole wall device according to claim 1, wherein said pressure-bearing struts (5) are provided with four sets between each of said outer bearing plate (2) and said inner bearing plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320886462.2U CN219977614U (en) | 2023-04-19 | 2023-04-19 | Device for closely attaching recyclable auxiliary drilling stress gauge to hole wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320886462.2U CN219977614U (en) | 2023-04-19 | 2023-04-19 | Device for closely attaching recyclable auxiliary drilling stress gauge to hole wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219977614U true CN219977614U (en) | 2023-11-07 |
Family
ID=88579111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320886462.2U Active CN219977614U (en) | 2023-04-19 | 2023-04-19 | Device for closely attaching recyclable auxiliary drilling stress gauge to hole wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219977614U (en) |
-
2023
- 2023-04-19 CN CN202320886462.2U patent/CN219977614U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108169005B (en) | Dynamic drawing test device for anchor rod of soil body | |
| CN108195664B (en) | Multifunctional mechanical property testing device for shield tunnel segment joints | |
| CN112557203A (en) | Hot hydraulic coupling triaxial test method for fractured rock | |
| CN110926941B (en) | Shale brittleness index evaluation method, device and system | |
| CN109752234B (en) | Rock material biaxial tension-compression test device capable of realizing real-time centering in stretching direction | |
| CN219977614U (en) | Device for closely attaching recyclable auxiliary drilling stress gauge to hole wall | |
| CN104389582A (en) | Well logging pushing and leaning device | |
| CN112730082A (en) | Physical simulation test device for slope unloading excavation and use method thereof | |
| CN114547895B (en) | Method for determining mechanical transmission performance of full-length grouting anchor cable | |
| CN116519172A (en) | Device for closely attaching recyclable auxiliary drilling stress gauge to hole wall and application method of device | |
| US20220178802A1 (en) | Variable dip fault slip simulation test method | |
| Liu et al. | Study on optimization design of permanent packer slip structure | |
| CN104652498A (en) | Double-umbrella prestressed pipe pile sectioned dead load test method and device | |
| CN111458083B (en) | Sealing test pressure testing device for rotary blowout preventer | |
| CN215598651U (en) | Testing device for sealing performance parameters of packer of oil and gas well | |
| CN112861393B (en) | Method for constructing envelope curve of performance of high-temperature and high-pressure packer | |
| CN109100232A (en) | The experimental rig and application method of cone vertical bearing capacity are climbed for detecting bridge tower | |
| CN112081552A (en) | Shale gas well cement sheath crushing form grading device and method under shearing load | |
| CN107631676B (en) | Just prop up the monitoring method of the relative vertical displacement between two linings in a kind of tunnel | |
| CN113252469A (en) | NPR anchor cable shearing failure simulation experiment device and method | |
| CN207919610U (en) | A kind of building pile foundation experimental provision | |
| CN116337631A (en) | Double-shaft loading test device and evaluation method for shaft system | |
| CN214460712U (en) | Optical fiber expansion device for pile foundation self-balancing static load test | |
| CN115452572B (en) | Test device and method for testing neutral axis position and longitudinal equivalent bending stiffness of shield tunnel | |
| Kaldal et al. | Improved Integrity of the Production Casing in Moderate-to Ultra-High-Temperature Geothermal Wells using Flexible Couplings |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |