Structural health monitoring with distributed optical fiber sensors of tunnel lining affected by nearby construction activity
2020
Gómez i Esteve, Judit | Casas Rius, Joan Ramon | Villalba Herrero, Sergi | Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental | Universitat Politècnica de Catalunya. Departament d'Enginyeria de Projectes i de la Construcció | Universitat Politècnica de Catalunya. EC - Enginyeria de la Construcció | Universitat Politècnica de Catalunya. GRIC - Grup de Recerca i Innovació de la Construcció
This paper addresses the implementation of a Distributed Optical Fiber Sensor system (DOFS) to the TMB L-9 metro tunnel in Barcelona for Structural Health Monitoring (SHM) purposes as the former could potentially be affected by the construction of a nearby residential building. With the aim of assessing the performance of this newly developed monitoring technology, an in-depth analysis on the collected strain readings is performed from which innovative data post-processing techniques are developed. Finally, the reliability of the installed DOFSs system is studied by means of a comparison with a theoretical model of the site’s structural conditions.
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