CN111256879A - Visual monitoring and early warning device for axial force of anchor rod and monitoring and early warning method thereof - Google Patents
Visual monitoring and early warning device for axial force of anchor rod and monitoring and early warning method thereof Download PDFInfo
- Publication number
- CN111256879A CN111256879A CN202010202653.3A CN202010202653A CN111256879A CN 111256879 A CN111256879 A CN 111256879A CN 202010202653 A CN202010202653 A CN 202010202653A CN 111256879 A CN111256879 A CN 111256879A
- Authority
- CN
- China
- Prior art keywords
- axial force
- early warning
- anchor rod
- monitoring
- warning device
- 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.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/04—Measuring force or stress, in general by measuring elastic deformation of gauges, e.g. of springs
- G01L1/042—Measuring force or stress, in general by measuring elastic deformation of gauges, e.g. of springs of helical springs
Abstract
The invention discloses a visual monitoring and early warning device and a monitoring and early warning method for axial force of an anchor rod, and solves the technical problems of high cost, complex operation, limited application range and the like of the conventional anchor rod axial force monitoring device. The rock mass early warning device comprises a top cover and a bottom cover, wherein an anchor rod penetrates through the top cover and the bottom cover, a nut is arranged at the end part of the anchor rod, the top cover and the bottom cover are clamped between the nut and a rock mass, a rotating shaft and a compression spring are arranged between the top cover and the bottom cover, two ends of the rotating shaft are respectively rotatably connected with the top cover and the bottom cover, a clockwork spring is arranged between the rotating shaft and the top cover or/and the bottom cover, a sliding groove is arranged on the rotating shaft, the bottom of the sliding groove is a rotary slope surface, a sliding column which is in abutting connection with the rotary slope surface is arranged on the top cover or the bottom cover, fan. The invention has low cost, simple operation and wide application range.
Description
Technical Field
The invention belongs to the technical field of axial force monitoring devices, and particularly relates to a visual monitoring and early warning device and a monitoring and early warning method for the axial force of an anchor rod.
Background
The anchor rod is a rod piece system structure for reinforcing the rock-soil mass, one end of the anchor rod is connected with an engineering structure, the other end of the anchor rod penetrates into the stratum, and the rock-soil mass is stabilized through the longitudinal tension effect of the rod body of the anchor rod. In the service period of the fields of anchor bolt support, such as side slopes, foundation pits, mines, tunnels, underground engineering and the like, the quality of the anchor bolt support is timely and accurately monitored, and the method has very important significance on the stability of the structure and the safety of the engineering.
In order to accurately and effectively monitor the axial force of the anchor rod, a great number of monitoring principles and methods are provided by a plurality of researchers, such as a fiber grating anchor rod dynamometer, a passive mining anchor rod axial force monitoring device, a resistance strain gauge force-measuring anchor rod, a hydraulic pillow type force-measuring anchor rod and the like. The existing monitoring device generally has the following problems: 1. the precise instruments and equipment have high manufacturing cost and high cost; 2. the equipment installation and data acquisition process is complicated; 3. most of the various monitoring devices need power supply and are greatly influenced by the stability of an external power supply system.
The anchor rod working environment and the working state are complex in combination with engineering practice, the axial force is in a safe state when the axial force is within a set working threshold, early warning intervention is required when the axial force is lower than or higher than a threshold range, and the cost of result acquisition, storage and later analysis can be effectively reduced through monitoring of the working threshold range. Therefore, it is very important to adopt a simple and visual monitoring device without a power supply and with a wide application range.
Disclosure of Invention
Aiming at the defects in the background art, the invention provides a visual monitoring and early warning device for the axial force of an anchor rod and a monitoring and early warning method thereof, which solve the technical problems of high cost, complex operation, limited application range and the like of the conventional monitoring device for the axial force of the anchor rod.
The technical scheme of the invention is realized as follows: the utility model provides a visual monitoring early warning device of stock axial force, including top cap and bottom, the stock passes top cap and bottom, the tip of stock is provided with the nut, top cap and bottom centre gripping are between nut and rock mass, be provided with pivot and compression spring between top cap and the bottom, the both ends of pivot are rotated with top cap and bottom respectively and are connected, be provided with clockwork spring between pivot and top cap or the bottom, be provided with the spout in the pivot, the tank bottom of spout is gyration domatic, be provided with the slip post with the domatic top of gyration connects on top cap or the bottom, be provided with the flabellum in the pivot, be provided with the early warning sign on the flabellum, be provided with the monitoring hole corresponding with the early.
Further, early warning sign on the flabellum includes that at least one axial force threshold interval, and the axial force threshold interval of observing through the inspection hole can directly reachd whether the stock axial force is unusual, and then makes the adjustment to the stock.
Further, different patterns are arranged in different axial force threshold value intervals, the patterns comprise bar codes or/and two-dimensional codes or/and images, and the patterns can be in any form as long as distinguishing requirements can be met.
Furthermore, the patterns comprise coating patterns or/and printing patterns or/and carving patterns, different pattern manufacturing modes can be selected according to different influences of construction environments on the monitoring and early warning device, and reliability and durability of monitoring and early warning are guaranteed.
Furthermore, the center of pivot is provided with the shaft hole, is provided with on the top cap and goes up spacing axle with shaft hole normal running fit, is provided with on the bottom and goes up spacing axle with shaft hole normal running fit.
Furthermore, the sliding groove is arranged at the outer edge of the rotating shaft and is of an open structure on the outer side wall, so that the processing and the manufacturing are simple, and the debugging, the installation and the maintenance are convenient.
Furthermore, the sliding groove is arranged around the axis of the rotating shaft in a rotating mode, so that the rotating shaft can flexibly rotate, and meanwhile, the corresponding axial force threshold interval can be calculated conveniently.
Further, the revolution slope surface of the sliding groove faces the top cover, the sliding column is arranged on the top cover, and the matching structure is convenient to debug and maintain.
Furthermore, the spring is sleeved on the rotating shaft, so that the rotating shaft is ensured to return automatically and conveniently, and meanwhile, the installation space is saved; the bottom cover is provided with a spring clamp, and the fixed end of the clockwork spring is connected with the spring clamp.
Further, the bottom includes the notch structure, top cap and notch structure sliding fit, and the top cap passes through notch structure joint in the bottom, and the top cap can slide from top to bottom along the lateral wall of bottom.
Further, be equipped with bellied ring hole on the top cap, be provided with bellied lower annular ring on the bottom, compression spring cover is established between last annular ring and lower annular ring, and the steadiness of compression spring installation can enough be guaranteed to such an assembly relation, can guarantee top cap and the gliding stability of bottom again.
The stock passes top cap and bottom through last annular ring, lower annular ring respectively, can not only make whole device structure compacter, can detect the axial force change of stock moreover more steadily.
Further, the bottom cover is connected with a base plate which is propped against the rock body, and the base plate can enable the bottom cover to be propped against the rock body more stably.
Further, be provided with the printing opacity piece in the monitoring hole, can be under the prerequisite that does not influence the detection, effectively protect the space between top cap and the bottom.
A monitoring and early warning method of an anchor rod axial force visual monitoring and early warning device comprises the following steps:
s1, determining the threshold interval of axial force, and calculating the reasonable range of the axial force of the anchor rod in the safety period according to geological survey data by considering factors such as construction error, axial force loss and rod body strength (F min，F max) Simultaneously calculating the lower limit value of the internal shaft force in the unsafe periodF lowAnd upper limit valueF topThus, three axial force threshold intervals are formed: a (A)F low，F min），B（F min，F max) And C (C: (a)F max，F top）。
S2, selecting the device type, wherein the effective pressure range of the compression spring is marked as (F low，F top) The compression spring satisfiesF=kL，kIn order to compress the stiffness coefficient of the spring,Lthe effective compression range of the compression spring is given by (L low，L top) The rotating shaft is matched with the sliding groove through the sliding column, the vertical translation of the sliding column is converted into the horizontal rotation of the rotating shaft, and the vertical displacement of the rotary slope surface meets the requirementL=f(θ) Axial force of anchor rodFAngle of rotation with the axis of rotationθSatisfyF=kf(θ) The inverse function isθ=f -1(F/k) From this, the axial force threshold interval A (A)F low，F min）、B（F min，F max）、C（F max，F top) Corresponding angleθ A、θ B、θ C。
S3, mounting the anchor rod, sleeving a base plate, a bottom cover, a top cover and a nut on the anchor rod body in sequence, mounting the anchor rod (8) in the anchor rod hole, forming anchoring with the rock mass around the hole and reaching the designed anchoring strength, and screwing the nut until only the axial force threshold value interval B can be seen through the monitoring hole (S) (B)F min，F max) And the anchor rod is installed.
S4, monitoring and early warning, axle force threshold interval A (A)F low，F min）、B（F min，F max）、C（F max，F top) The surface is provided with different patterns, when an axial force threshold interval A (is present:)F low，F min）、C（F max，F top) The anchor is processed in the pattern of (1).
Further, in S1-S4, the number of the axial force threshold interval divisions is not limited, and each interval axial force range is determined as required.
Further, in S4, it is determined that the fan blade is located in the axial force threshold interval a (according to the different patterns detected by the detection holes)F low，F min) Or B (a)F min，F max) Or C (F max，F top）。
Further, in S4, the monitoring and early warning modes include manual monitoring, fixed monitoring equipment monitoring, and inspection robot monitoring.
The beneficial effects of the invention include:
(1) the cost is low, the device has simple structure, is convenient to process and manufacture, and does not need electricity;
(2) the operation is simple and convenient, the operation is similar to the conventional anchor rod installation process, and when the nut is screwed, whether the anchor rod is installed in place can be judged only by observing the color, the symbol or the pattern and the like of the fan blades of the monitoring hole;
(3) the application range is wide, and the anchor rod is suitable for most anchor rods;
(4) the automatic early warning is realized, and under the action of light or scanning equipment, an alarm is automatically sent out, so that related personnel can timely perform treatment;
(5) the technical requirement is low, the judgment of the monitoring result is clear, and monitoring personnel do not need to be specially trained.
Drawings
In order to illustrate the embodiments of the invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the invention, and that other drawings may be derived from those drawings by a person skilled in the art without inventive effort.
Fig. 1 is a schematic view of a visual monitoring and early warning device for the axial force of the anchor rod;
FIG. 2 is an exploded view of FIG. 1;
FIG. 3 is a schematic view of a top cover of the present invention;
FIG. 4 is a schematic view of a spindle according to the present invention;
fig. 5 is a schematic view of the anchor rod axial force visual monitoring and early warning device in the working process.
Wherein: 1. the device comprises a top cover, 1-1 parts of an upper annular hole, 1-2 parts of an upper limiting shaft, 1-3 parts of a monitoring hole, 1-4 parts of a sliding column, 1-5 parts of a light-transmitting sheet, 2 parts of a bottom cover, 2-1 parts of a lower annular hole, 2-2 parts of a lower limiting shaft, 2-3 parts of a spring clamp, 3 parts of a clockwork spring, 4 parts of a rotating shaft, 4-1 parts of a sliding groove, 4-2 parts of a shaft hole, 4-3 parts of a fan blade, 5 parts of a compression spring, 6 parts of a nut, 7 parts of a base plate, 8 parts of an anchor rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 2, a rotating shaft 4 and a compression spring 5 are arranged between the top cover 1 and the bottom cover 2, two ends of the rotating shaft 4 are respectively rotatably connected with the top cover 1 and the bottom cover 2, and the rotating shaft 4 can horizontally rotate relative to the top cover 1 and the bottom cover 2. As shown in fig. 4, a shaft hole 4-2 is formed in the center of the rotating shaft 4, as shown in fig. 3, an upper limiting shaft 1-2 rotatably fitted with the shaft hole 4-2 is formed on the top cover 1, as shown in fig. 2, a lower limiting shaft 2-2 rotatably fitted with the shaft hole 4-2 is formed on the bottom cover 2, and the rotating shaft 4 rotates through the shaft hole 4-2 fitted with the upper limiting shaft 1-2 and the lower limiting shaft 2-2.
As shown in fig. 2, a clockwork spring 3 is arranged between the rotating shaft 4 and the bottom cover, and the clockwork spring 3 is sleeved on the rotating shaft 4 to realize fixed connection with the rotating shaft 4. The bottom cover 2 is provided with spring clamps 2-3, the fixed end of the clockwork spring 3 is connected with the spring clamps 2-3, the rotating shaft 4 rotates under the action of external force, and after the external force disappears, the rotating shaft 4 restores to the original position under the action of the clockwork spring 3.
As shown in figure 4, a sliding groove 4-1 is arranged on the rotating shaft 4, a rotary slope surface 4-4 is arranged at the bottom of the sliding groove 4-1, and a sliding column 1-4 which is connected with the rotary slope surface 4-4 in a propping manner is arranged on the top cover 1 as shown in figure 3. When the top cover 1 and the bottom cover 2 clamped between the nut 6 and the rock body are stressed, the top cover 1 and the bottom cover 2 are mutually pressed, the sliding columns 1-4 on the top cover 1 press the rotary slope surface 4-4, and the rotating shaft 4 rotates relative to the top cover 1 and the bottom cover 2 under the action of pressure.
As shown in fig. 4, the rotating shaft 4 is provided with a fan blade 4-3, the fan blade 4-3 is provided with an early warning mark, and as shown in fig. 3, the top cover 1 is provided with a monitoring hole 1-3 corresponding to the early warning mark. Different positions of the early warning mark can be observed through the detection holes 1-3, and then the stress state of the anchor rod 8 is judged.
The other structure of this embodiment is the same as embodiment 1.
The other structure of this embodiment is the same as embodiment 2.
Other structures of this embodiment are the same as those of embodiment 3.
Other structures of this embodiment may be the same as any of embodiments 1 to 4.
Other structures of this embodiment may be the same as any of embodiments 1 to 5.
Other structures of this embodiment may be the same as any of embodiments 1 to 6.
Other structures of this embodiment may be the same as any of embodiments 1 to 7.
Embodiment 9, a visual monitoring early warning device of stock axial force, stock 8 passes top cap 1 and bottom 2 through upper annular ring 1-1, lower annular ring 2-1 respectively, can not only make whole device structure compacter, can detect the axial force change of stock more steadily moreover.
Other structures of this embodiment may be the same as embodiment 8.
Embodiment 10, a visual monitoring early warning device of stock axial force, bottom 2 is connected with the backing plate 7 that leans on the rock mass, and backing plate 7 can make bottom 2 more stably lean on the rock mass.
Other structures of this embodiment may be the same as any of embodiments 1 to 9.
Embodiment 11, a visual monitoring early warning device of stock axial force, be provided with printing opacity piece 1-5 in the monitoring hole 1-3, can effectively protect the space between top cap and the bottom under the prerequisite that does not influence the detection, prevent that the foreign matter from getting into between top cap 1 and the bottom 2.
Other structures of this embodiment may be the same as any of embodiments 1 to 10.
Embodiment 12, a monitoring and early warning method of visual monitoring and early warning device of stock axial force, includes the following steps:
s1, determining the threshold interval of axial force, calculating construction error, axial force loss and rod strength according to geological survey data, and calculating the reasonable range of the axial force of the anchor rod 8 in the safety period (F min，F max) Simultaneously calculating the lower limit value of the internal shaft force in the unsafe periodF lowAnd upper limit valueF topThus, three axial force threshold intervals are formed: a (A)F low，F min），B（F min，F max) And C (C: (a)F max，F top）。
S2, selecting the device type, and recording the effective pressure range of the compression spring 5 as (F low，F top) The compression spring 5 satisfiesF=kL，kIn order to compress the stiffness coefficient of the spring 5,Lthe effective compression range of the compression spring 5 for the amount of deformation of the compression spring 5 is given byL low，L top) The rotating shaft 4 is matched with the sliding groove 4-1 through the sliding columns 1-4, the vertical translation of the sliding columns (1-4) is converted into the horizontal rotation of the rotating shaft 4, and the vertical displacement of the rotary slope surface meets the requirementL=f(θ) Axial force of anchor rod 8FAngle of rotation with the axis of rotation 4θSatisfyF=kf(θ) The inverse function isθ=f -1(F/k) From this, the axial force threshold interval A (A)F low，F min）、B（F min，F max）、C（F max，F top) Corresponding angleθ A、θ B、θ C。
S3, mounting the anchor rod, sleeving a backing plate 7, a bottom cover 2, a top cover 1 and a nut 6 on the rod body of the anchor rod 8 in sequence, mounting the anchor rod 8 in the anchor rod hole, grouting, screwing the nut 6 until the grout reaches the designed strength, and only seeing the axial force threshold value interval B (after the grout reaches the designed strength, screwing the nut 6 until the monitoring hole 1-3F min，F max) And the anchor rod is installed.
S4, monitoring and early warning, axle force threshold interval A (A)F low，F min）、B（F min，F max）、C（F max，F top) The surface is provided with different patterns, when an axial force threshold interval A (is present:)F low，F min）、C（F max，F top) The anchor 8 is processed.
Embodiment 13, a monitoring and early warning method of a visual monitoring and early warning device of an anchor rod axial force, in S1-S4, the number of the divisions of the axial force threshold interval is not limited, and the range of the axial force of each interval is determined according to the need.
The other methods of this example are the same as those of example 12.
Embodiment 14, a monitoring and early warning method for an anchor rod axial force visualization monitoring and early warning device, in S4, it is determined that fan blades 4-3 are located in an axial force threshold interval a (according to different patterns detected by detection holes 1-3)F low，F min) Or B (a)F min，F max) Or C (F max，F top）。
The other methods of this example are the same as in example 13.
Embodiment 15, a monitoring and early warning method of visual monitoring and early warning device of stock axial force, in S4, the mode of monitoring and early warning includes that manual monitoring, fixed monitoring equipment monitor, the monitoring of patrolling and examining the robot, can choose suitable mode for use with bar code or two-dimensional code or image cooperation respectively.
The other methods of this example are the same as those of example 14.
Nothing in this specification is intended to be exhaustive of all conventional and well known techniques.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (18)
1. The utility model provides a visual monitoring early warning device of stock axial force which characterized in that: comprises a top cover (1) and a bottom cover (2), an anchor rod (8) penetrates through the top cover (1) and the bottom cover (2), a nut (6) is arranged at the end part of the anchor rod (8), the top cover (1) and the bottom cover (2) are clamped between the nut (6) and a rock body, a rotating shaft (4) and a compression spring (5) are arranged between the top cover (1) and the bottom cover (2), two ends of the rotating shaft (4) are respectively rotatably connected with the top cover (1) and the bottom cover (2), a clockwork spring (3) is arranged between the rotating shaft (4) and the top cover (1) or/and the bottom cover, a sliding chute (4-1) is arranged on the rotating shaft (4), a rotary slope surface (4-4) is arranged at the bottom of the sliding chute (4-1), a sliding column (1-4) which is in butt joint with the rotary slope surface (4-4) is arranged on the top, early warning marks are arranged on the fan blades (4-3), and monitoring holes (1-3) corresponding to the early warning marks are arranged on the top cover (1) or/and the bottom cover (2).
2. The anchor rod axial force visual monitoring and early warning device of claim 1, characterized in that: the early warning mark on the fan blade (4-3) comprises at least one axial force threshold interval.
3. The anchor rod axial force visual monitoring and early warning device of claim 2, characterized in that: different patterns are arranged in different axial force threshold intervals, and the patterns comprise bar codes or/and two-dimensional codes or/and images.
4. The anchor rod axial force visual monitoring and early warning device of claim 3, characterized in that: the pattern comprises a painting pattern or/and a printing pattern or/and an engraving pattern.
5. The anchor rod axial force visual monitoring and early warning device of any one of claims 1 to 4, wherein: the center of the rotating shaft (4) is provided with a shaft hole (4-2), the top cover (1) is provided with an upper limiting shaft (1-2) which is in running fit with the shaft hole (4-2), and the bottom cover (2) is provided with a lower limiting shaft (2-2) which is in running fit with the shaft hole (4-2).
6. The anchor rod axial force visual monitoring and early warning device of claim 5, wherein: the sliding groove (4-1) is arranged at the outer edge of the rotating shaft (4) and is of an outer side wall open type structure.
7. The anchor rod axial force visual monitoring and early warning device of any one of claims 1-4 or 6, wherein: the sliding groove (4-1) is arranged around the axis of the rotating shaft (4) in a rotating mode.
8. The anchor rod axial force visual monitoring and early warning device of claim 7, characterized in that: the rotary slope surface (4-4) of the sliding chute (4-1) faces the top cover (1), and the sliding column (1-4) is arranged on the top cover (1).
9. The anchor rod axial force visual monitoring and early warning device of any one of claims 1-4, 6 or 8, wherein: the spring (3) is sleeved on the rotating shaft (4), the bottom cover (2) is provided with a spring clamp (2-3), and the fixed end of the spring (3) is connected with the spring clamp (2-3).
10. The anchor rod axial force visual monitoring and early warning device of claim 9, characterized in that: the bottom cover (2) comprises a notch structure, and the top cover (1) is in sliding fit with the notch structure.
11. The anchor rod axial force visual monitoring and early warning device as claimed in any one of claims 1-4 or 6 or 8 or 10, wherein: the top cover (1) is provided with a raised upper annular hole (1-1), the bottom cover (2) is provided with a raised lower annular hole (2-1), and the compression spring (5) is sleeved between the upper annular hole (1-1) and the lower annular hole (2-1).
12. The anchor rod axial force visual monitoring and early warning device of claim 11, wherein: the anchor rod (8) penetrates through the top cover (1) and the bottom cover (2) through the upper annular hole (1-1) and the lower annular hole (2-1) respectively.
13. The anchor rod axial force visual monitoring and early warning device as claimed in any one of claims 1-4 or 6 or 8 or 10 or 12, wherein: the bottom cover (2) is connected with a base plate (7) which is propped against a rock body.
14. The anchor rod axial force visual monitoring and early warning device of claim 13, wherein: and light-transmitting sheets (1-5) are arranged in the monitoring holes (1-3).
15. The monitoring and early warning method of the bolt axial force visual monitoring and early warning device according to claim 14, characterized by comprising the following steps:
s1, determining the threshold interval of the axial force, and calculating the reasonable range of the axial force of the anchor rod (8) in the safety period according to geological survey data by considering factors such as construction error, axial force loss and rod body strength (F min，F max) Simultaneously calculating the lower limit value of the internal shaft force in the unsafe periodF lowAnd upper limit valueF topThus, three axial force threshold intervals are formed: a (A)F low，F min），B（F min，F max) And C (C: (a)F max，F top）；
S2, dressThe effective pressure range of the compression spring (5) is marked as (A)F low，F top) The compression spring (5) satisfiesF=kL，kIs the stiffness coefficient of the compression spring (5),Lthe effective compression range of the compression spring (5) is expressed as (A)L low，L top) The rotating shaft (4) is matched with the sliding chute (4-1) through the sliding column (1-4), the vertical translation of the sliding column (1-4) is converted into the horizontal rotation of the rotating shaft (4), and the vertical displacement of the rotary slope surface meets the requirement of the horizontal rotation of the rotating shaft (4)L=f(θ) Axial force of anchor rod (8)FAngle of rotation with the rotating shaft (4)θSatisfyF=kf(θ) The inverse function isθ=f -1(F/k) From this, the axial force threshold interval A (A)F low，F min）、B（F min，F max）、C（F max，F top) Corresponding angleθ A、θ B、θ C；
S3, mounting the anchor rod, sleeving a base plate (7), a bottom cover (2), a top cover (1) and a nut (6) on the rod body of the anchor rod (8) in sequence, mounting the anchor rod (8) in the anchor rod hole, forming anchoring with the rock body around the hole and reaching the designed anchoring strength, and screwing the nut (6) until only the axial force threshold value interval B (B) can be seen through the monitoring hole (1-3)F min，F max) The anchor rod is installed;
s4, monitoring and early warning, axle force threshold interval A (A)F low，F min）、B（F min，F max）、C（F max，F top) The surface is provided with different patterns, when an axial force threshold interval A (is present:)F low，F min）、C（F max，F top) The anchor (8) is processed.
16. The monitoring and early warning method of claim 15, wherein: in the steps S1 to S4, the number of the axial force threshold interval divisions is not limited, and the range of the axial force of each interval is determined as required.
17. The monitoring and early warning method of claim 15, wherein: in the step S4, the situation that the fan blade (4-3) is located in the axial force threshold value interval A (A) is judged according to different patterns detected by the detection holes (1-3)F low，F min) Or B (a)F min，F max) Or C (F max，F top）。
18. The monitoring and early warning method of claim 15, wherein: in S4, the monitoring and early warning modes comprise manual monitoring, fixed monitoring equipment monitoring and inspection robot monitoring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010202653.3A CN111256879A (en) | 2020-03-20 | 2020-03-20 | Visual monitoring and early warning device for axial force of anchor rod and monitoring and early warning method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010202653.3A CN111256879A (en) | 2020-03-20 | 2020-03-20 | Visual monitoring and early warning device for axial force of anchor rod and monitoring and early warning method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111256879A true CN111256879A (en) | 2020-06-09 |
Family
ID=70954869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010202653.3A Pending CN111256879A (en) | 2020-03-20 | 2020-03-20 | Visual monitoring and early warning device for axial force of anchor rod and monitoring and early warning method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111256879A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2211600Y (en) * | 1994-09-28 | 1995-11-01 | 煤炭科学研究总院北京开采研究所 | Anchor shank stress monitor |
| SE1451357A1 (en) * | 2014-11-13 | 2016-05-14 | Rock Safety Sweden Ab | Device for rock bolt and method for using the device as well as reinforcing systems including such device. |
| CN205689232U (en) * | 2016-06-23 | 2016-11-16 | 山东科技大学 | A kind of early warning type pressure-relieving achor bar |
| CN205719784U (en) * | 2016-06-27 | 2016-11-23 | 山东科技大学 | The simple apparatus for evaluating of suspension roof support bearing capacity |
| CN106437802A (en) * | 2016-12-23 | 2017-02-22 | 山东科技大学 | Anchor rod yield device with alert function and application method |
| KR101715243B1 (en) * | 2015-06-10 | 2017-03-10 | 황태현 | test apparatus for tension of anckor |
| CN106523008A (en) * | 2016-12-23 | 2017-03-22 | 山东科技大学 | anchor rod stress measuring reading warning device and usage method |
| CN107203010A (en) * | 2017-06-05 | 2017-09-26 | 山东理工大学 | Underground space country rock disaster, which is released, and can buffer method of real-time |
| CN108252302A (en) * | 2018-01-10 | 2018-07-06 | 重庆大学 | A kind of device of achievable rockbolt stress status visualization |
| CN109702677A (en) * | 2019-03-08 | 2019-05-03 | 中铁工程装备集团有限公司 | The high torque-force ratchet spanner of mushroom |
-
2020
- 2020-03-20 CN CN202010202653.3A patent/CN111256879A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2211600Y (en) * | 1994-09-28 | 1995-11-01 | 煤炭科学研究总院北京开采研究所 | Anchor shank stress monitor |
| SE1451357A1 (en) * | 2014-11-13 | 2016-05-14 | Rock Safety Sweden Ab | Device for rock bolt and method for using the device as well as reinforcing systems including such device. |
| KR101715243B1 (en) * | 2015-06-10 | 2017-03-10 | 황태현 | test apparatus for tension of anckor |
| CN205689232U (en) * | 2016-06-23 | 2016-11-16 | 山东科技大学 | A kind of early warning type pressure-relieving achor bar |
| CN205719784U (en) * | 2016-06-27 | 2016-11-23 | 山东科技大学 | The simple apparatus for evaluating of suspension roof support bearing capacity |
| CN106437802A (en) * | 2016-12-23 | 2017-02-22 | 山东科技大学 | Anchor rod yield device with alert function and application method |
| CN106523008A (en) * | 2016-12-23 | 2017-03-22 | 山东科技大学 | anchor rod stress measuring reading warning device and usage method |
| CN107203010A (en) * | 2017-06-05 | 2017-09-26 | 山东理工大学 | Underground space country rock disaster, which is released, and can buffer method of real-time |
| CN108252302A (en) * | 2018-01-10 | 2018-07-06 | 重庆大学 | A kind of device of achievable rockbolt stress status visualization |
| CN109702677A (en) * | 2019-03-08 | 2019-05-03 | 中铁工程装备集团有限公司 | The high torque-force ratchet spanner of mushroom |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206583391U (en) | A kind of detection means of bearing axial play | |
| CN104389325B (en) | The full-automatic inclination measurement system of foundation pit enclosure wall and tilt measurement | |
| WO2018086185A1 (en) | Circumferential and axial strain measurement device used for rock-like specimen | |
| CN111912899A (en) | Online nondestructive flaw detection method and device for oil pipe | |
| CN104033146B (en) | The oil well verticality measuring tool of convenient dismounting | |
| CN111256879A (en) | Visual monitoring and early warning device for axial force of anchor rod and monitoring and early warning method thereof | |
| CN208238763U (en) | A kind of device for real-time measurement soil body deeply mixing cement-soil pile and surface settlement | |
| CN105043611B (en) | A kind of swelled ground lateral swelling force in-situ testing device | |
| CN210119187U (en) | Thickness detection equipment for highway engineering supervision | |
| CN207598434U (en) | A kind of offshore wind farm set tower drum and the safe on-Line Monitor Device of pile foundation | |
| CN208872464U (en) | Static balance testing device for propeller | |
| CN217111752U (en) | Novel loading device for shield tunnel model test | |
| CN205483391U (en) | Mechanical type manometer | |
| CN115710893A (en) | Foundation pit measuring device | |
| CN210427562U (en) | Environmental soil detection device | |
| CN208488144U (en) | A kind of water-level instrumentation of river regulation | |
| CN204313759U (en) | A kind of device detecting plain radial bearing end-play | |
| DE102016223883A1 (en) | Axial thrust bearing with measuring bolt for drilling rigs | |
| CN203534497U (en) | Connecting rod detecting machine | |
| CN218097651U (en) | Roller chamfer runout detection device | |
| CN214096893U (en) | House structure strength detection device | |
| CN212921918U (en) | Tiller installation inspection tool | |
| CN216846046U (en) | Device for measuring screw thread turning direction | |
| CN217897851U (en) | Drill column damage wellhead online monitoring device mounted on drill disk surface | |
| CN214702023U (en) | Centering tool for low-pressure inner cylinder and rotor of steam turbine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200609 |