LU505301B1 - Laying device and laying method of optical fiber sensor for monitoring deformation of anchor rod - Google Patents
Laying device and laying method of optical fiber sensor for monitoring deformation of anchor rod Download PDFInfo
- Publication number
- LU505301B1 LU505301B1 LU505301A LU505301A LU505301B1 LU 505301 B1 LU505301 B1 LU 505301B1 LU 505301 A LU505301 A LU 505301A LU 505301 A LU505301 A LU 505301A LU 505301 B1 LU505301 B1 LU 505301B1
- Authority
- LU
- Luxembourg
- Prior art keywords
- optical fiber
- anchor rod
- fiber sensor
- limiting disc
- block
- Prior art date
Links
- 239000013307 optical fiber Substances 0.000 title claims abstract description 79
- 238000012544 monitoring process Methods 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000001965 increasing effect Effects 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims abstract description 6
- 239000011435 rock Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000005553 drilling Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/02—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection having means for indicating tension
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B2210/00—Aspects not specifically covered by any group under G01B, e.g. of wheel alignment, caliper-like sensors
- G01B2210/56—Measuring geometric parameters of semiconductor structures, e.g. profile, critical dimensions or trench depth
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The present disclosure discloses a laying device and a laying method of an optical fiber sensor for monitoring deformation of an anchor rod, including: an anchor rod, wherein a laying pipe is installed inside the anchor rod, and an optical fiber sensor is provided on the laying pipe; a limiting disc, wherein the limiting disc is installed on a top of the anchor rod, a stress gauge is installed on a top of the limiting disc, a fixed seat is installed on a top of the stress gauge, and a clamping mechanism is provided on the fixed seat. The present disclosure has the advantages that through a designed clamping mechanism, the optical fiber sensor can be quickly clamped, and the clamping and fixing efficiency of the optical fiber sensor is improved; through a designed positioning part and the cooperation of a positioning block and a positioning groove, the positioning performance of the limiting disc during installation is increased; the optical fiber sensor collects monitoring data of the anchor rod, and prestress data collected by the stress gauge is transmitted to a processor for processing. The processed data can be monitored remotely through a terminal, and when the anchor rod is deformed, an alarm can be given through an alarm.
Description
LAYING DEVICE AND LAYING METHOD OF OPTICAL FIBER SENSOR FOR
MONITORING DEFORMATION OF ANCHOR ROD 17905801
[0001] The present disclosure belongs to the technical field of laying an optical fiber sensor, and in particular, relates to a laying device and a laying method of an optical fiber sensor for monitoring deformation of an anchor rod.
[0002] An anchor rod 1s located in a rock mass and forms a new complex with the rock mass.
The anchor rod in such complex is the key to solve a low tensile capacity of a surrounding rock mass, thus greatly enhancing the bearing capacity of the rock mass itself. The anchor rod is a most basic part of roadway support in contemporary underground mines, which binds the surrounding rocks of the roadway together so that the surrounding rocks support themselves. The anchor rod is not only used in mines, but also in engineering technology to actively strengthen slopes, tunnels and dams.
[0003] Monitoring deformation of an anchor rod is of great significance. An optical fiber sensor is often laid for monitoring deformation of an anchor rod, and a laying device 1s required for laying the optical fiber sensor.
[0004] The application number 201510035552.0 discloses a laying device and a laying method of an optical fiber sensor for similar simulation. This patent discloses that an inner cavity of a similar physical model test-bed 1s filled with similar materials, a vertical drilling hole 1s drilled in the similar materials, a laying pipe is inserted into the vertical drilling hole, and an optical fiber fixed groove is formed on the laying pipe. Both ends of the optical fiber fixed groove are connected with stress gauges. The stress gauges are connected with a stress gauge and an optical fiber holder, respectively. The optical fiber holder is integrally connected with an optical fiber hole, a rubber groove and a sensing optical fiber through fastening screws. The upper end surface of the laying pipe is connected with a level gauge.
[0005] The existing laying device of the optical fiber sensor has the following problems in use.
[0006] When the optical fiber sensor is clamped, the optical fiber sensor needs to be clamped with fastening screws, which increases the complexity of clamping.
[0007] The data collected by the stress gauge and the optical fiber sensor needs to be directly checked on site, which increases the complexity of checking and is not conducive to giving an alarm when the anchor rod is deformed. 1/15
[0008] The present disclosure aims to provide a laying device and a laying method of an optical 0599 fiber sensor for monitoring deformation of an anchor rod, so as to increase the clamping efficiency of the optical fiber sensor. The data collected by stress gauge and the optical fiber sensor can be processed, and an alarm is given in time when the anchor rod is deformed.
[0009] In order to achieve the above purpose, the present disclosure provides the following technical scheme: a laying device of an optical fiber sensor for monitoring deformation of an anchor rod, including:
[0010] an anchor rod, where a laying pipe is installed in the anchor rod, and an optical fiber sensor is provided on the laying pipe;
[0011] a limiting disc, where the limiting disc is installed on a top of the anchor rod, a stress gauge is installed on a top of the limiting disc, a fixed seat is installed on a top of the stress gauge, a clamping mechanism is provided on the fixed seat, the clamping mechanism includes a clamping part, a guide part and a sliding part, and through holes through which the optical fiber sensor passes are provided in all of the limiting disc, the stress gauge and the fixed seat.
[0012] As a preferred technical scheme of the present disclosure, the clamping part includes grooves and a rubber clamping block, the grooves are symmetrically provided inside the fixed seat, a spring is installed at a groove bottom of the groove, a side surface of the rubber clamping block is provided with an extension block, one end of the extension block is embedded in the groove and is connected with the spring, the rubber clamping block is clamped on an outer wall of the optical fiber sensor, and the rubber clamping block has an arc structure.
[0013] As a preferred technical scheme of the present disclosure, the guide part includes a guide block, the guide block is provided on the side surface of the rubber clamping block, and a guide groove into which the guide block is inserted is provided in the fixed seat.
[0014] As a preferred technical scheme of the present disclosure, the guide block and the rubber clamping block have an integrated structure, and the guide block is cylindrical.
[0015] As a preferred technical scheme of the present disclosure, the sliding part includes a sliding sheet, the sliding sheet is provided on an outer side surface of an embedding end of the extension block, and a chute in which the sliding sheet slides is provided in the fixed seat.
[0016] As a preferred technical scheme of the present disclosure, the limiting disc and the anchor rod are connected by screws, and positioning parts are provided on the limiting disc and the anchor rod.
[0017] As a preferred technical scheme of the present disclosure, the positioning part includes a positioning block, the positioning block is provided at a bottom of the limiting plate, and a top of the anchor rod is provided with a positioning groove adapted to the positioning block. 2/15
[0018] As a preferred technical scheme of the present disclosure, the laying device of the optical fiber sensor for monitoring deformation of the anchor rod further includes a processor, a terminal 999 and an alarm, where the processor is connected with the stress gauge, the optical fiber sensor, the terminal and the alarm, respectively, the alarm is connected with the terminal, the terminal includes a computer and a mobile phone, and the alarm includes a buzzer and an alarm lamp.
[0019] The present disclosure further discloses a laying method of the laying device of the optical fiber sensor for monitoring deformation of the anchor rod, where the method is as follows:
[0020] Step 1: installing a laying pipe inside an anchor rod, picking up a limiting disc, inserting a positioning block into a positioning groove, increasing positioning of installation of the limiting disc, and firmly installing the limiting disc and the anchor rod through screws;
[0021] Step 2, installing a stress gauge on a top of the limiting disc, and installing a fixed seat on a top of the stress gauge;
[0022] Step 3: picking up the optical fiber sensor, inserting the optical fiber sensor into the laying pipe along through holes of the fixed seat, the stress gauge and the limiting disc, and clamping the optical fiber sensor using a clamping part;
[0023] Step 4: collecting, by the optical fiber sensor, monitoring data of the anchor rod, transmitting prestress data collected by the stress gauge to a processor for processing, monitoring the processed data remotely through a terminal, and when the anchor rod is deformed, giving an alarm through an alarm.
[0024] Compared with the prior art, the present disclosure has the advantages that:
[0025] through a designed clamping mechanism, the optical fiber sensor can be quickly clamped, and the clamping and fixing efficiency of the optical fiber sensor is improved,
[0026] through a designed positioning part and the cooperation of a positioning block and a positioning groove, the positioning performance of the limiting disc during installation is increased;
[0027] the optical fiber sensor collects monitoring data of the anchor rod, and prestress data collected by the stress gauge is transmitted to a processor for processing. The processed data can be monitored remotely through a terminal, and when the anchor rod is deformed, an alarm can be given through an alarm.
[0028] FIG. 1 is a structural schematic diagram of the present disclosure.
[0029] FIG. 2 is a schematic view of a cross-sectional structure of the present disclosure.
[0030] FIG. 3 is an enlarged structural schematic diagram of area E in FIG. 2 according to the 3/15 present disclosure.
[0031] FIG. 4 is an enlarged structural schematic diagram of area F in FIG. 3 according to the 205801 present disclosure.
[0032] FIG. 5 is a structural schematic diagram of a data processing system according to the present disclosure.
[0033] FIG. 6 is a flowchart of a laying method according to the present disclosure.
[0034] In the figures: 1. Anchor rod; 11. Laying pipe; 12. Positioning groove; 2. Limiting disc; 21. Positioning block; 3. Stress gauge; 4. Fixed seat; 41. Groove; 42. Guide groove; 43. Chute; 5.
Optical fiber sensor; 6. Rubber clamping block; 61. Extension block; 611. Sliding sheet; 62.
Guide block; 7. Spring.
[0035] The technical scheme in the embodiment of the present disclosure will be clearly and completely described with reference to the attached drawings hereinafter. Obviously, the described embodiment is only a part of the embodiment of the present disclosure, rather than all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present disclosure.
[0036] Embodiment 1
[0037] Referring to FIG. 1 to FIG. 4, which is a first embodiment of the present disclosure, this embodiment provides a laying device of an optical fiber sensor for monitoring deformation of an anchor rod, including:
[0038] an anchor rod 1, where a laying pipe 11 is installed in the anchor rod 1, so that the laying pipe 11 is added, an optical fiber sensor 5 is provided on the laying pipe 11, and the installed optical fiber sensor 5 is limited by the laying pipe 11;
[0039] a limiting disc 2, where the limiting disc 2 is installed on a top of the anchor rod 1 by screws, so that the limiting disc 2 is firmly installed, a stress gauge 3 is installed on a top of the limiting disc 2 by screws, so that the stress gauge 3 is firmly installed, a fixed seat 4 is installed on a top of the stress gauge 3 by screws, so that the fixed seat 4 is firmly installed, a clamping mechanism is provided on the fixed seat 4, the clamping mechanism includes a clamping part, a guide part and a sliding part, and through holes through which the optical fiber sensor 5 passes are provided in all of the limiting disc 2, the stress gauge 3 and the fixed seat 4, so that the optical fiber sensor 5 can be placed in the laying pipe 11.
[0040] In this embodiment, preferably, the clamping part includes grooves 41 and a rubber clamping block 6. The grooves 41 are symmetrically provided inside the fixed seat 4, so that the 4/15 grooves 41 are provided. A spring 7 is installed at a groove bottom of the groove 41, so that the spring 7 is installed. A side surface of the rubber clamping block 6 is provided with an extension 205801 block 61, so that the extension block 61 is added. One end of the extension block 61 1s embedded in the groove 41 and is connected with the spring 7. The rubber clamping block 6 is clamped on an outer wall of the optical fiber sensor 5, and the rubber clamping block 6 has an arc structure.
When the optical fiber sensor 5 is installed, the rubber clamping block 6 is squeezed. The rubber clamping block 6 drives the extension block 61 to compress the spring 7 when being squeezed.
The spring 7 is reset after being compressed, which drives the extension block 61 to move, so that the two rubber clamping blocks 6 clamp the optical fiber sensor 5 firmly.
[0041] In this embodiment, preferably, the guide part includes a guide block 62. The guide block 62 is provided on the side surface of the rubber clamping block 6, so that the guide block 62 is added. A guide groove 42 into which the guide block 62 is inserted is provided in the fixed seat 4. The guide of the rubber clamping block 6 when moving can be increased by the cooperation of the guide block 62 and the guide groove 42.
[0042] In this embodiment, preferably, the guide block 62 and the rubber clamping block 6 have an integrated structure, so that the strength of the guide block 62 and the rubber clamping block 6 is better. Moreover, the guide block 62 is cylindrical.
[0043] In this embodiment, preferably, the sliding part includes a sliding sheet 611. The sliding sheet 611 is provided on an outer side surface of an embedding end of the extension block 61, so that the sliding sheet 611 is added. A chute 43 in which the sliding sheet 611 slides is provided in the fixed seat 4, so that the chute 43 is provided. The extension block 61 moves more smoothly by the cooperation of the sliding sheet 611 and the chute 43.
[0044] Embodiment 2
[0045] Referring to FIG. 1 to FIG. 5, which is a second embodiment of the present disclosure, this embodiment provides a laying device of an optical fiber sensor for monitoring deformation of an anchor rod, including:
[0046] an anchor rod 1, where a laying pipe 11 is installed in the anchor rod 1, so that the laying pipe 11 is added, an optical fiber sensor 5 is provided on the laying pipe 11, and the installed optical fiber sensor 5 is limited by the laying pipe 11;
[0047] a limiting disc 2, where the limiting disc 2 is installed on a top of the anchor rod 1 by screws, so that the limiting disc 2 is firmly installed, a stress gauge 3 is installed on a top of the limiting disc 2 by screws, so that the stress gauge 3 is firmly installed, a fixed seat 4 is installed on a top of the stress gauge 3 by screws, so that the fixed seat 4 is firmly installed, a clamping mechanism is provided on the fixed seat 4, the clamping mechanism includes a clamping part, a guide part and a sliding part, and through holes through which the optical fiber sensor 5 passes 5/15 are provided in all of the limiting disc 2, the stress gauge 3 and the fixed seat 4, so that the optical fiber sensor 5 can be placed in the laying pipe 11. HUS05801
[0048] In this embodiment, preferably, the clamping part includes grooves 41 and a rubber clamping block 6. The grooves 41 are symmetrically provided inside the fixed seat 4, so that the grooves 41 are provided. A spring 7 is installed at a groove bottom of the groove 41, so that the spring 7 is installed. A side surface of the rubber clamping block 6 is provided with an extension block 61, so that the extension block 61 is added. One end of the extension block 61 is embedded in the groove 41 and is connected with the spring 7. The rubber clamping block 6 is clamped on an outer wall of the optical fiber sensor 5, and the rubber clamping block 6 has an arc structure.
When the optical fiber sensor 5 is installed, the rubber clamping block 6 is squeezed. The rubber clamping block 6 drives the extension block 61 to compress the spring 7 when being squeezed.
The spring 7 is reset after being compressed, which drives the extension block 61 to move, so that the two rubber clamping blocks 6 clamp the optical fiber sensor 5 firmly.
[0049] In this embodiment, preferably, the guide part includes a guide block 62. The guide block 62 is provided on the side surface of the rubber clamping block 6, so that the guide block 62 is added. A guide groove 42 into which the guide block 62 is inserted is provided in the fixed seat 4. The guide of the rubber clamping block 6 when moving can be increased by the cooperation of the guide block 62 and the guide groove 42.
[0050] In this embodiment, preferably, the guide block 62 and the rubber clamping block 6 have an integrated structure, so that the strength of the guide block 62 and the rubber clamping block 6 is better. Moreover, the guide block 62 is cylindrical.
[0051] In this embodiment, preferably, the sliding part includes a sliding sheet 611. The sliding sheet 611 is provided on an outer side surface of an embedding end of the extension block 61, so that the sliding sheet 611 is added. A chute 43 in which the sliding sheet 611 slides is provided in the fixed seat 4, so that the chute 43 is provided. The extension block 61 moves more smoothly by the cooperation of the sliding sheet 611 and the chute 43.
[0052] In this embodiment, preferably, the limiting disc 2 and the anchor rod 1 are connected by screws, so that the limiting disc 2 and the anchor rod 1 are firmly fixed. Moreover, positioning parts are provided on the limiting disc 2 and the anchor rod 1. The positioning part includes a positioning block 21. The positioning block 21 is provided at a bottom of the limiting plate 2, so that the positioning blocks 21 is added. A top of the anchor rod 1 is provided with a positioning groove 12 adapted to the positioning block 21. The positioning performance of the limiting disc 2 during installation is increased by the cooperation of the positioning block 21 and the positioning groove 12.
[0053] In this embodiment, preferably, the laying device of the optical fiber sensor for 6/15 monitoring deformation of the anchor rod further includes a processor, a terminal and an alarm.
The processor is connected with the stress gauge 3, the optical fiber sensor 5, the terminal and 205801 the alarm, respectively. The alarm is connected with the terminal. The terminal includes a computer and a mobile phone. The alarm includes a buzzer and an alarm lamp.
[0054] Embodiment 3
[0055] Referring to FIG. 6, which is a third embodiment of the present disclosure, this embodiment provides a laying method of the laying device of the optical fiber sensor for monitoring deformation of the anchor rod, including the following steps:
[0056] Step 1: installing a laying pipe 11 inside an anchor rod 1, picking up a limiting disc 2, inserting a positioning block 21 into a positioning groove 12, increasing positioning of installation of the limiting disc 2, and firmly installing the limiting disc 2 and the anchor rod 1 through screws;
[0057] Step 2, installing a stress gauge 3 on a top of the limiting disc 2, and installing a fixed seat 4 on a top of the stress gauge 3;
[0058] Step 3: picking up the optical fiber sensor 5, inserting the optical fiber sensor 5 into the laying pipe 11 along through holes of the fixed seat 4, the stress gauge 3 and the limiting disc 2, and clamping the optical fiber sensor 5 using a clamping part;
[0059] Step 4: collecting, by the optical fiber sensor 5, monitoring data of the anchor rod 1, transmitting prestress data collected by the stress gauge 3 to a processor for processing, monitoring the processed data remotely through a terminal, and when the anchor rod 1 is deformed, giving an alarm through an alarm.
[0060] Although embodiments of the present disclosure have been shown and described (refer to the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present disclosure, and the scope of the present disclosure is defined by the appended claims and their equivalents. 7/15
Claims (9)
1. À laying device of an optical fiber sensor for monitoring deformation of an anchor rod. 99930) comprising: an anchor rod (1), wherein a laying pipe (11) is installed in the anchor rod (1), and an optical fiber sensor (5) is provided on the laying pipe (11); a limiting disc (2), wherein the limiting disc (2) is installed on a top of the anchor rod (1), a stress gauge (3) is installed on a top of the limiting disc (2), a fixed seat (4) is installed on a top of the stress gauge (3), a clamping mechanism is provided on the fixed seat (4), the clamping mechanism comprises a clamping part, a guide part and a sliding part, and through holes through which the optical fiber sensor (5) passes are provided in all of the limiting disc (2), the stress gauge (3) and the fixed seat (4).
2. The laying device of the optical fiber sensor for monitoring deformation of the anchor rod according to claim 1, wherein the clamping part comprises grooves (41) and a rubber clamping block (6), the grooves (41) are symmetrically provided inside the fixed seat (4), a spring (7) is installed at a groove bottom of the groove (41), a side surface of the rubber clamping block (6) is provided with an extension block (61), one end of the extension block (61) is embedded in the groove (41) and is connected with the spring (7), the rubber clamping block (6) is clamped on an outer wall of the optical fiber sensor (5), and the rubber clamping block (6) has an arc structure.
3. The laying device of the optical fiber sensor for monitoring deformation of the anchor rod according to claim 2, wherein the guide part comprises a guide block (62), the guide block (62) is provided on the side surface of the rubber clamping block (6), and a guide groove (42) into which the guide block (62) is inserted is provided in the fixed seat (4).
4. The laying device of the optical fiber sensor for monitoring deformation of the anchor rod according to claim 3, wherein the guide block (62) and the rubber clamping block (6) have an integrated structure, and the guide block (62) is cylindrical.
5. The laying device of the optical fiber sensor for monitoring deformation of the anchor rod according to claim 2, wherein the sliding part comprises a sliding sheet (611), the sliding sheet (611) is provided on an outer side surface of an embedding end of the extension block (61), and a chute (43) in which the sliding sheet (611) slides is provided in the fixed seat (4).
6. The laying device of the optical fiber sensor for monitoring deformation of the anchor rod according to claim 1, wherein the limiting disc (2) and the anchor rod (1) are connected by screws, and positioning parts are provided on the limiting disc (2) and the anchor rod (1).
7. The laying device of the optical fiber sensor for monitoring deformation of the anchor rod according to claim 6, wherein the positioning part comprises a positioning block (21), the positioning block (21) is provided at a bottom of the limiting plate (2), and a top of the anchor 8/15 rod (1) is provided with a positioning groove (12) adapted to the positioning block (21).
8. The laying device of the optical fiber sensor for monitoring deformation of the anchor rod 205801 according to claim 1, further comprising a processor, a terminal and an alarm, wherein the processor 1s connected with the stress gauge (3), the optical fiber sensor (5), the terminal and the alarm, respectively, the alarm is connected with the terminal, the terminal comprises a computer and a mobile phone, and the alarm comprises a buzzer and an alarm lamp.
9. A laying method of the laying device of the optical fiber sensor for monitoring deformation of the anchor rod according to any of claims 1 to 8, wherein the method is as follows: Step 1: installing a laying pipe (11) inside an anchor rod (1), picking up a limiting disc (2), inserting a positioning block (21) into a positioning groove (12), increasing positioning of installation of the limiting disc (2), and firmly installing the limiting disc (2) and the anchor rod (1) through screws; Step 2, installing a stress gauge (3) on a top of the limiting disc (2), and installing a fixed seat (4) on a top of the stress gauge (3); Step 3: picking up the optical fiber sensor (5), inserting the optical fiber sensor (5) into the laying pipe (11) along through holes of the fixed seat (4), the stress gauge (3) and the limiting disc (2), and clamping the optical fiber sensor (5) using a clamping part; Step 4: collecting, by the optical fiber sensor (5), monitoring data of the anchor rod (1), transmitting prestress data collected by the stress gauge (3) to a processor for processing, monitoring the processed data remotely through a terminal, and when the anchor rod (1) is deformed, giving an alarm through an alarm. 9/15
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311142924 | 2023-09-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| LU505301B1 true LU505301B1 (en) | 2024-04-18 |
Family
ID=90720555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU505301A LU505301B1 (en) | 2023-09-06 | 2023-10-17 | Laying device and laying method of optical fiber sensor for monitoring deformation of anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| LU (1) | LU505301B1 (en) |
-
2023
- 2023-10-17 LU LU505301A patent/LU505301B1/en active IP Right Grant
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| FG | Patent granted |
Effective date: 20240418 |