Performance Assessment of Distributed Strain Sensing Techniques for Convergence Monitoring of Radioactive Waste Repository
This paper presents the measurement methodology of diameter reduction monitoring of micro-tunnel structures used for radioactive waste storage based on distributed strain measurements along fiber optic sensors installed on the circumference. The whole measurement procedure is described: the calibrat...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/23/1/398 |
| _version_ | 1797439642011697152 |
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| author | Arianna Piccolo Yann Lecieux Sylvie Lesoille Pierre Teixeira Johan Bertrand Dominique Leduc |
| author_facet | Arianna Piccolo Yann Lecieux Sylvie Lesoille Pierre Teixeira Johan Bertrand Dominique Leduc |
| author_sort | Arianna Piccolo |
| collection | DOAJ |
| description | This paper presents the measurement methodology of diameter reduction monitoring of micro-tunnel structures used for radioactive waste storage based on distributed strain measurements along fiber optic sensors installed on the circumference. The whole measurement procedure is described: the calibration of the sensors for use in harsh environment (temperature and radioactivity), the measurement analysis technique, the performance assessment of different measurement systems on a surface mock-up and the in-situ validation on an underground structure. The performances of Brillouin and Rayleigh backscattering measurements are compared, as well as different fixation technologies. Distributed measurements are compared to alternative measurements: displacement sensors, Bragg grating extensometers and MEMS accelerometers. The distributed Rayleigh backscattering measurement performed on optical cables bonded to the surface of the structure appears to be the best solution for monitoring the convergence of micro-tunnels and offers comparable performance to alternative technologies tested on the surface demonstrator. |
| first_indexed | 2024-03-09T11:56:02Z |
| format | Article |
| id | doaj.art-e4426cbe64694f03aa7b78e38f072091 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T11:56:02Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-e4426cbe64694f03aa7b78e38f0720912023-11-30T23:09:15ZengMDPI AGSensors1424-82202022-12-0123139810.3390/s23010398Performance Assessment of Distributed Strain Sensing Techniques for Convergence Monitoring of Radioactive Waste RepositoryArianna Piccolo0Yann Lecieux1Sylvie Lesoille2Pierre Teixeira3Johan Bertrand4Dominique Leduc5French National Radioactive Waste Management Agency (Andra), 92298 Chatenay-Malabry, FranceLaboratoire GeM UMR 6183, Nantes Université, 44000 Nantes, FranceFrench National Radioactive Waste Management Agency (Andra), 92298 Chatenay-Malabry, FranceDépartement Instrumentation d’EGIS, 38180 Seyssins, FranceFrench National Radioactive Waste Management Agency (Andra), 92298 Chatenay-Malabry, FranceLaboratoire GeM UMR 6183, Nantes Université, 44000 Nantes, FranceThis paper presents the measurement methodology of diameter reduction monitoring of micro-tunnel structures used for radioactive waste storage based on distributed strain measurements along fiber optic sensors installed on the circumference. The whole measurement procedure is described: the calibration of the sensors for use in harsh environment (temperature and radioactivity), the measurement analysis technique, the performance assessment of different measurement systems on a surface mock-up and the in-situ validation on an underground structure. The performances of Brillouin and Rayleigh backscattering measurements are compared, as well as different fixation technologies. Distributed measurements are compared to alternative measurements: displacement sensors, Bragg grating extensometers and MEMS accelerometers. The distributed Rayleigh backscattering measurement performed on optical cables bonded to the surface of the structure appears to be the best solution for monitoring the convergence of micro-tunnels and offers comparable performance to alternative technologies tested on the surface demonstrator.https://www.mdpi.com/1424-8220/23/1/398Structural Health Monitoringdistributed optical fiberstrain sensing cableRayleigh scatteringBrillouin scatteringconvergence monitoring |
| spellingShingle | Arianna Piccolo Yann Lecieux Sylvie Lesoille Pierre Teixeira Johan Bertrand Dominique Leduc Performance Assessment of Distributed Strain Sensing Techniques for Convergence Monitoring of Radioactive Waste Repository Sensors Structural Health Monitoring distributed optical fiber strain sensing cable Rayleigh scattering Brillouin scattering convergence monitoring |
| title | Performance Assessment of Distributed Strain Sensing Techniques for Convergence Monitoring of Radioactive Waste Repository |
| title_full | Performance Assessment of Distributed Strain Sensing Techniques for Convergence Monitoring of Radioactive Waste Repository |
| title_fullStr | Performance Assessment of Distributed Strain Sensing Techniques for Convergence Monitoring of Radioactive Waste Repository |
| title_full_unstemmed | Performance Assessment of Distributed Strain Sensing Techniques for Convergence Monitoring of Radioactive Waste Repository |
| title_short | Performance Assessment of Distributed Strain Sensing Techniques for Convergence Monitoring of Radioactive Waste Repository |
| title_sort | performance assessment of distributed strain sensing techniques for convergence monitoring of radioactive waste repository |
| topic | Structural Health Monitoring distributed optical fiber strain sensing cable Rayleigh scattering Brillouin scattering convergence monitoring |
| url | https://www.mdpi.com/1424-8220/23/1/398 |
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