Abstract
The Semmering Base Tunnel in Austria is currently one of the largest tunnel construction sites in Central Europe. Two tunnel tubes, each 27.3 km long, are being built from the portal and three intermediate construction sites. Each access point poses specific challenges, and structural monitoring is a crucial element to ensure both economic and safe construction. In this paper, the authors describe one of the most comprehensive distributed fibre-optic sensing installations on a tunnel construction site worldwide. At the Semmering Base Tunnel, fibre-optic sensing is used at every construction location to monitor tunnel linings, shafts, reinforced earth structures and pipelines. The authors also discuss the challenges posed by the installations and the results of long-term monitoring programmes. The installed monitoring systems will, furthermore, be used throughout the expected 150-year operational lifetime of the tunnel. Unlike conventional sensors, fibre-optic sensors do not comprise electric or moveable components at the measurement location. A longer lifetime can, therefore, be expected for fibre-optic sensors, which makes them promising candidates for condition-based maintenance of civil infrastructure.
Original language | English |
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Title of host publication | Proceedings of the Institution of Civil Engineers |
Subtitle of host publication | Smart Infrastructure and Construction |
Volume | 172, 4 |
DOIs | |
Publication status | Published - 2019 |
Event | International Conference on Smart Infrastructure and Construction 2019 - Churchill College , Cambridge, United Kingdom Duration: 8 Jul 2019 → 10 Jul 2019 https://www.icsic2019.eng.cam.ac.uk/Programme |
Conference
Conference | International Conference on Smart Infrastructure and Construction 2019 |
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Abbreviated title | ICSIC 2019 |
Country/Territory | United Kingdom |
City | Cambridge |
Period | 8/07/19 → 10/07/19 |
Internet address |
Fields of Expertise
- Sustainable Systems
Treatment code (Nähere Zuordnung)
- Experimental