Long-term deformation monitoring of CERN concrete-lined tunnels using distributed fibre-optic sensing

Vanessa Di Murro, Loizos Pelecanos, Kenichi Soga, Cedric Kechavarzi, Richard F. Morton, Luigi Scibile

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The Centre for European Nuclear Research (CERN) uses large and complex scientific instruments to study the basic constituents of matter by operating a network of underground particle accelerators and appurtenant tunnels. Long-term safety and structural health of this critical infrastructure highlighted the need for a sensing plan that could provide remote monitoring and resistance to high radiation. A pilot Distributed Fibre-Optic Sensing (DFOS) system using Brillouin scattering was used to instrument 8 tunnel sections and obtain a first set of short-term readings. These preliminary readings show minor tunnel ovalisation and will be used as baseline for future long-term readings.
Original languageEnglish
Pages (from-to)1-7
Number of pages7
JournalGeotechnical Engineering Journal of the SEAGS & AGSSEA
Volume50
Issue number2
Publication statusPublished - 1 Jun 2019

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Keywords

  • Brillouin scattering
  • Fibre-optic sensing
  • Long-term monitoring
  • Soil-structure interaction
  • Tunnels

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Geotechnical Engineering and Engineering Geology

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