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Open AccessArticle

Distributed Optical Fiber-Based Approach for Soil–Structure Interaction

1
Université Paris Est, Ifsttar, 77447 Champs sur Marne, France
2
INRS, Centre Eau Terre Environnement, Québec, QC G1K 9A9, Canada
*
Author to whom correspondence should be addressed.
Sensors 2020, 20(1), 321; https://doi.org/10.3390/s20010321
Received: 16 December 2019 / Revised: 30 December 2019 / Accepted: 3 January 2020 / Published: 6 January 2020
(This article belongs to the Special Issue Optical Sensors for Structural Health Monitoring)
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. View Full-Text
Keywords: distributed measurements; fiber optic sensors; scour; soil-structure interaction; winkler model; equivalent length distributed measurements; fiber optic sensors; scour; soil-structure interaction; winkler model; equivalent length
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MDPI and ACS Style

Boujia, N.; Schmidt, F.; Chevalier, C.; Siegert, D.; Pham Van Bang, D. Distributed Optical Fiber-Based Approach for Soil–Structure Interaction. Sensors 2020, 20, 321.

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