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Open AccessTechnical Note

Distributed Fiber Optic Sensors for the Monitoring of a Tunnel Crossing a Landslide

Department of Engineering, University of Campania Luigi Vanvitelli, 81031 Aversa, Italy
Institute for Electromagnetic Sensing of the Environment (IREA) Consiglio Nazionale delle Ricerche (CNR), 80124 Napoli, Italy
Department of Geoengineering & Geoinformatics, Nanjing University, Nanjing 210000, China
School of Engineering, University of Basilicata, 85100 Potenza, Italy
Rete Ferroviaria Italiana (Ferrovie dello Stato Italiane Group), 70122 Bari, Italy
Author to whom correspondence should be addressed.
Remote Sens. 2018, 10(8), 1291;
Received: 3 July 2018 / Revised: 26 July 2018 / Accepted: 12 August 2018 / Published: 15 August 2018
PDF [1620 KB, uploaded 15 August 2018]


This work reports on the application of a distributed fiber-optic strain sensor for long-term monitoring of a railway tunnel affected by an active earthflow. The sensor has been applied to detect the strain distribution along an optical fiber attached along the two walls of the tunnel. The experimental results, relative to a two-year monitoring campaign, demonstrate that the sensor is able to detect localized strains, identify their location along the tunnel walls, and follow their temporal evolution. View Full-Text
Keywords: fiber optic sensors; stimulated Brillouin scattering; tunnels; field monitoring fiber optic sensors; stimulated Brillouin scattering; tunnels; field monitoring

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Minardo, A.; Catalano, E.; Coscetta, A.; Zeni, G.; Zhang, L.; Di Maio, C.; Vassallo, R.; Coviello, R.; Macchia, G.; Picarelli, L.; Zeni, L. Distributed Fiber Optic Sensors for the Monitoring of a Tunnel Crossing a Landslide. Remote Sens. 2018, 10, 1291.

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