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Distributed Optical Fiber-Based Approach for Soil–Structure Interaction.

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Boujia, Nissrine; Schmidt, Franziska; Chevalier, Christophe; Siegert, Dominique; Pham Van Bang, Damien (2020). Distributed Optical Fiber-Based Approach for Soil–Structure Interaction. Sensors , vol. 20 , nº 1. p. 321. DOI: 10.3390/s20010321.

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Résumé

Scour is a hydraulic risk threatening the stability of bridges in fluvial and coastal areas. Therefore, developing permanent and real-time monitoring techniques is crucial. Recent advances in strain measurements using fiber optic sensors allow new opportunities for scour monitoring. In this study, the innovative optical frequency domain reflectometry (OFDR) was used to evaluate the effect of scour by performing distributed strain measurements along a rod under static lateral loads. An analytical analysis based on the Winkler model of the soil was carefully established and used to evaluate the accuracy of the fiber optic sensors and helped interpret the measurements results. Dynamic tests were also performed and results from static and dynamic tests were compared using an equivalent cantilever model.

Type de document: Article
Mots-clés libres: distributed measurements; fiber optic sensors; scour; soil-structure interaction; winkler model; equivalent length
Centre: Centre Eau Terre Environnement
Date de dépôt: 17 avr. 2020 17:39
Dernière modification: 17 avr. 2020 17:39
URI: http://espace.inrs.ca/id/eprint/10075

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