Monitoring of the structural loads of tunnels using a distributed optical system BOTDR

Marcel Fajkus; Jan Nedoma; Pavel Mec; Martin Novak; Tomas Kajnar; Radek Martinek; Jakub Jaros; David Hruby; Vladimir Vasinek

doi:10.1117/12.2278226

26 October 2017 Monitoring of the structural loads of tunnels using a distributed optical system BOTDR

Marcel Fajkus, Jan Nedoma, Pavel Mec, Martin Novak, Tomas Kajnar, Radek Martinek, Jakub Jaros, David Hruby, Vladimir Vasinek

Author Affiliations +

Proceedings Volume 10440, Optical Materials and Biomaterials in Security and Defence Systems Technology XIV; 104400Q (2017) https://doi.org/10.1117/12.2278226
Event: SPIE Security + Defence, 2017, Warsaw, Poland

Abstract

Authors of this article focused on the analysis of the use of distributed fiber-optic technology for security monitoring of structural loads of road and motorway tunnels. Authors focused on measurements of deformation utilizing Brillouin Time Domain Reflectometry (BOTDR). The principle is based on the measurement of the stimulated Brillouin scattering. The article describes the load of tunnel based on the real measurements made during the construction of the motorway tunnel in the Slovakia Republic in a time horizon of several months. Experiments were carried out with standard optical telecommunication cable with water-absorbing aramid yarns and jacketing of diameter 4.2 mm. The outcome of this article is an introductory analysis the use of fiber-optic technology for security monitoring of structural loads for road and motorway tunnels.

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Marcel Fajkus, Jan Nedoma, Pavel Mec, Martin Novak, Tomas Kajnar, Radek Martinek, Jakub Jaros, David Hruby, and Vladimir Vasinek "Monitoring of the structural loads of tunnels using a distributed optical system BOTDR", Proc. SPIE 10440, Optical Materials and Biomaterials in Security and Defence Systems Technology XIV, 104400Q (26 October 2017); https://doi.org/10.1117/12.2278226

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