Structural Design and Application of Desensitized FBG Force-Measuring Bolt
Bolt-supporting technology has been widely used in mine roadway support, and its own working conditions have important reference value for roadway safety support. In order to realize the continuous and reliable monitoring of the bolt rod’s working condition, this paper analyzes the existing problems...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-05-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/22/10/3930 |
| _version_ | 1797495581967384576 |
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| author | Minfu Liang Yang Song Xinqiu Fang Yuye Jiang Fan Zhang Shuang Li Ningning Chen Ziyue Xu |
| author_facet | Minfu Liang Yang Song Xinqiu Fang Yuye Jiang Fan Zhang Shuang Li Ningning Chen Ziyue Xu |
| author_sort | Minfu Liang |
| collection | DOAJ |
| description | Bolt-supporting technology has been widely used in mine roadway support, and its own working conditions have important reference value for roadway safety support. In order to realize the continuous and reliable monitoring of the bolt rod’s working condition, this paper analyzes the existing problems of the existing fiber Bragg grating force-measuring bolt (FBG-FMB), and proposes a fiber grating strain desensitization sensing theory. Based on this theory, a desensitized FBG-FMB is developed with the spring as the elastic sensitive element. A mechanical analysis and drawing test show that the strain of the force-measuring bolt is greater than 60 times the micro-strain of the fiber grating, which verifies the feasibility of the structure design of the FBG-FMB. Finally, through the field application in the coal mine roadway, the working conditions of the bolt body at the two measuring points of the roadway are obtained to verify the reliability of the force-measuring bolt. In addition, the desensitized FBG-FMB can be widely used in the supporting fields of underground engineering such as slopes, tunnels, and foundation pits. |
| first_indexed | 2024-03-10T01:51:41Z |
| format | Article |
| id | doaj.art-1e94c8af77104f81bca026d28171b124 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T01:51:41Z |
| publishDate | 2022-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-1e94c8af77104f81bca026d28171b1242023-11-23T13:03:42ZengMDPI AGSensors1424-82202022-05-012210393010.3390/s22103930Structural Design and Application of Desensitized FBG Force-Measuring BoltMinfu Liang0Yang Song1Xinqiu Fang2Yuye Jiang3Fan Zhang4Shuang Li5Ningning Chen6Ziyue Xu7School of Mines, China University of Mining and Technology, Xuzhou 221116, ChinaSchool of Mines, China University of Mining and Technology, Xuzhou 221116, ChinaSchool of Mines, China University of Mining and Technology, Xuzhou 221116, ChinaXuzhou Heavy Machinery Co., Ltd., Xuzhou 221116, ChinaSchool of Mines, China University of Mining and Technology, Xuzhou 221116, ChinaSchool of Economics and Management, China University of Mining and Technology, Xuzhou 221116, ChinaSchool of Mines, China University of Mining and Technology, Xuzhou 221116, ChinaSchool of Mines, China University of Mining and Technology, Xuzhou 221116, ChinaBolt-supporting technology has been widely used in mine roadway support, and its own working conditions have important reference value for roadway safety support. In order to realize the continuous and reliable monitoring of the bolt rod’s working condition, this paper analyzes the existing problems of the existing fiber Bragg grating force-measuring bolt (FBG-FMB), and proposes a fiber grating strain desensitization sensing theory. Based on this theory, a desensitized FBG-FMB is developed with the spring as the elastic sensitive element. A mechanical analysis and drawing test show that the strain of the force-measuring bolt is greater than 60 times the micro-strain of the fiber grating, which verifies the feasibility of the structure design of the FBG-FMB. Finally, through the field application in the coal mine roadway, the working conditions of the bolt body at the two measuring points of the roadway are obtained to verify the reliability of the force-measuring bolt. In addition, the desensitized FBG-FMB can be widely used in the supporting fields of underground engineering such as slopes, tunnels, and foundation pits.https://www.mdpi.com/1424-8220/22/10/3930bolt supportingforce-measuring boltdesensitizationfiber Bragg grating (FBG) sensorsdrawing test |
| spellingShingle | Minfu Liang Yang Song Xinqiu Fang Yuye Jiang Fan Zhang Shuang Li Ningning Chen Ziyue Xu Structural Design and Application of Desensitized FBG Force-Measuring Bolt Sensors bolt supporting force-measuring bolt desensitization fiber Bragg grating (FBG) sensors drawing test |
| title | Structural Design and Application of Desensitized FBG Force-Measuring Bolt |
| title_full | Structural Design and Application of Desensitized FBG Force-Measuring Bolt |
| title_fullStr | Structural Design and Application of Desensitized FBG Force-Measuring Bolt |
| title_full_unstemmed | Structural Design and Application of Desensitized FBG Force-Measuring Bolt |
| title_short | Structural Design and Application of Desensitized FBG Force-Measuring Bolt |
| title_sort | structural design and application of desensitized fbg force measuring bolt |
| topic | bolt supporting force-measuring bolt desensitization fiber Bragg grating (FBG) sensors drawing test |
| url | https://www.mdpi.com/1424-8220/22/10/3930 |
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