Journal
JOURNAL OF ELECTRICAL ENGINEERING-ELEKTROTECHNICKY CASOPIS
Volume 68, Issue 5, Pages 364-370Publisher
SLOVAK UNIV TECHNOLOGY
DOI: 10.1515/jee-2017-0068
Keywords
Brillouin time domain reflectometry (BOTDR); fibre-optic sensor
Categories
Funding
- Ministry of Education of the Czech Republic [SP2017/128, SP2017/79]
- Ministry of Education, Youth and Sports of the Czech Republic [CZ.1.07/2.3.00/20.0217]
- European structural funds
- state budget of the Czech Republic
- Competence Centers of the Technology Agency of the Czech Republic (TACR) within the project Center for Effective and sustainable transport infrastructure (CESTI) [TE01020168]
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This article is focused on the analysis of the use of distributed fibre-optic technology for security monitoring of road tunnel and motorway tunnel structural load. The authors focused on the measurements of deformation utilizing Brillouin Time Domain Reflectometry (BOTDR). The principle is based on the measurement of stimulated Brillouin scattering. The article describes and analyses real measurements within a period of 5 months, which were carried out during the tunnelling and the whole process of building a new tunnel in Zilina, Slovakia. The performed experimental measurements were carried out using a standard optic telecommunication cable with water-absorbing aramid yarns and a jacket with a diameter of 4.2 mm. The contribution of this article lies in the introductory analysis of the implementation and use of the fibre-optic technology for security monitoring of road tunnel and motorway tunnel structural load.
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