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Proceedings Paper

Dam monitoring with fiber optics deformation sensors
Author(s): Pascal Kronenberg; Nicoletta Casanova; Daniele Inaudi; Samuel Vurpillot
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Paper Abstract

The monitoring of dams represents an important task in the management of hydroelectric systems. Their economic, social and environmental value imposes to know well the real behavior of the structure and its foundations. This paper shows in two practical cases the possibility to improve the quality of deformation measurements by an appropriate fiber optics sensor network. The first case is a study showing the technical and economical feasibility to install an extended, spatial fiber optics deformation sensor network to detect the relative deflection of an entire shell dam. At this purpose of theoretical study has been evaluated on the base of typical load situations with their effective deflections on the Schiffenen dam, a shell-shaped concrete structure near Fribourg. The second case concerns the development and realization of two long fiber optics deformation sensors anchored in the rock to monitor the displacement of the dam relatively to its underground. These sensors have been installed in the Emosson shell dam.

Paper Details

Date Published: 23 May 1997
PDF: 10 pages
Proc. SPIE 3043, Smart Structures and Materials 1997: Smart Systems for Bridges, Structures, and Highways, (23 May 1997); doi: 10.1117/12.274637
Show Author Affiliations
Pascal Kronenberg, Swiss Federal Institute of Technology (Switzerland)
Nicoletta Casanova, Swiss Federal Institute of Technology, SMARTEC SA, and IMM SA (Switzerland)
Daniele Inaudi, Swiss Federal Institute of Technology and SMARTEC SA (Switzerland)
Samuel Vurpillot, Swiss Federal Institute of Technology (Switzerland)

Published in SPIE Proceedings Vol. 3043:
Smart Structures and Materials 1997: Smart Systems for Bridges, Structures, and Highways
Norris Stubbs, Editor(s)

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