The tunnel is used as compensation chamber for the Luzzone hydropower plant. Due the dam raising it was necessary to enlarge this chamber.
The SOFO sensors were installed radialy in order to measure the rock deformations during the different phases of construction.
Main results:
The recorded deformations were used to optimize the thickness of the shotcrete lining.
|
INSTALLATION PERIOD |
TYPE OF SENSORS |
NUMBER OF SENSORS |
|
1997 |
SOFO |
8 |
Sensor installation in the tunnel
Installation of the connection box.
Related Papers:
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Verformungsmessungen mit optischen Glasfasersensoren, N. Casanova, Weiterbildungskurs ETH Zürich, Feldmessungen und Beobachtungsmethode in der Geotechnik, Switzerland – (p 1-10) – 1997
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SOFO®: Tunnel monitoring with fiber optic sensors, D. Inaudi, N. Casanova, G. Steinmann, J-F. Mathier, G. Martinola , Reducing Risk in Tunnel Design and Construction, ITC publisher – (p 25-36) – 1998
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SOFO®: Monitoraggio di opere del genio civile tramite sensori a fibre ottiche, G. Ballerini, D. Inaudi, S. Vurpillot, ARCHI, architettura e ingegneria, ed. Casagrande – (Nr. 1, p 74 -80) – 1998
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Fibre Optic Methods for Structural Health Monitoring, Branko Glisic and Daniele Inaudi, John Wiley & Sons, Ltd – 2007
Sensor installation in the tunnel
Installation of the connection box.
