In this paper possible applications concerning monitoring of geomorphological evolution such as landslip and soil creep, water flow in soil, imbibition, drying, thermal expansion and contraction are considered. Monitoring of those processes is very useful for safety and efficiency, but it is usually very expensive both because of the instrumentation and the personnel required. In this paper we propose a new technique, based of fiber optic sensors, for monitoring deformations in rocks, in particular tufitic rocks. Fiber Bragg Grating (FBG) sensors can be used as optical strain gages to check in real time the deformation on the slope induced by temperature and water content variations. Furthermore it has been verified the measuring capability of the sensor with respect to temperature and imbibition in rocks and marbles for possible applications in cultural heritage where those materials were commonly used.
Monitoring Temperature and Water Imbibition in Litic Materials by Embedded FBG / Saviano, Giovanna; Felli, Ferdinando; Paolozzi, Antonio; CAPONERO M., A; Pugliese, L.. - STAMPA. - 1:(2006), pp. 447-454. (Intervento presentato al convegno Third European Workshop STRUCTURAL HEALTH MONITORING tenutosi a Granata Spein nel July 5-7, 2006).
Monitoring Temperature and Water Imbibition in Litic Materials by Embedded FBG
SAVIANO, Giovanna;FELLI, Ferdinando;PAOLOZZI, Antonio;
2006
Abstract
In this paper possible applications concerning monitoring of geomorphological evolution such as landslip and soil creep, water flow in soil, imbibition, drying, thermal expansion and contraction are considered. Monitoring of those processes is very useful for safety and efficiency, but it is usually very expensive both because of the instrumentation and the personnel required. In this paper we propose a new technique, based of fiber optic sensors, for monitoring deformations in rocks, in particular tufitic rocks. Fiber Bragg Grating (FBG) sensors can be used as optical strain gages to check in real time the deformation on the slope induced by temperature and water content variations. Furthermore it has been verified the measuring capability of the sensor with respect to temperature and imbibition in rocks and marbles for possible applications in cultural heritage where those materials were commonly used.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
