Monitoring structures with optical fibers: infiltration detection



Document title: Monitoring structures with optical fibers: infiltration detection
Journal: Anais da Academia Brasileira de Ciencias
Database: PERIÓDICA
System number: 000420313
ISSN: 0001-3765
Authors: 1
1
2
3
Institutions: 1Universidade Federal do Parana, Programa de Pós-Graduação em Métodos Numéricos para Engenharia, Curitiba, Parana. Brasil
2Institutos Lactec, Curitiba, Parana. Brasil
3University of Innsbruck, Hydraulic Engineering Laboratory, Innsbruck, Tirol. Austria
Year:
Season: Jun
Volumen: 90
Number: 2
Pages: 1865-1872
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental
English abstract The use of sensors and optical fibers for monitoring structures is continuously growing. Strains, displacements, accelerations, temperatures are just a few of the monitoring possibilities. In the case of dam structures, concrete face rockfill dams constitute a type of structures where the monitoring of water infiltrations is of particular interest. In large structures of this type, opening of slab joints is a common effect of general strain distributions, but crack formation may also occur as a result of high compressive stresses, during and after the reservoir filling stage. In this context, this paper verifies, experimentally, the applicability and the response of a distributed fiber optic monitoring system in the identification of infiltration spots and its potential sizes. The experimental tests confirm the technical feasibility of detecting infiltrations, but did not show clear evidence of their sizes
Disciplines: Ingeniería,
Física y astronomía
Keyword: Ingeniería civil,
Ingeniería hidráulica,
Optica,
Estructuras de concreto,
Infiltración,
Sistemas de monitoreo,
Fibra óptica
Keyword: Civil engineering,
Optics,
Hydraulic engineering,
Concrete structures,
Infiltration,
Monitoring systems,
Optical fiber
Full text: Texto completo (Ver PDF)