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Monitoring of a SFRC retaining structure during placement / Marco Scaioni in European journal of environmental and civil engineering, Vol. 14 N° 4 (Avril 2010) 

Public ISBD [article]  in European journal of environmental and civil engineering > Vol. 14 N° 4 (Avril 2010) . - pp. 467-493 Titre : Monitoring of a SFRC retaining structure during placement Type de document : texte imprimé Auteurs : Marco Scaioni, Auteur ; Mario Alba, Auteur ; Fabio Roncoroni, Auteur Année de publication : 2011 Article en page(s) : pp. 467-493 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Monitoring  Engineering  geodesy  Retaining  structures  Risk  mitigation  Fibre  optic  sensor  Vibrating  wires Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : This paper deals with a solution for monitoring rigid 3-D displacements and deformations of 4 steel fibre RC innovative retaining structures designed for stabilizing unstable slopes. In particular, here the complete monitoring system is described, whilst results achieved during the placement of every structure are given. It includes the periodic use of a robotic total station to perform geodetic measurements during both placement and service stages, with different acquisition rates. The application of standard techniques of Engineering Geodesy resulted in over-estimating the precision of measurements, then an improved method to carry out this task was defined and applied. The monitoring system is completed by local strain sensors (load cells, vibrating wires and fibre optic sensors) which were tested in order to define a suitable configuration for assessing deformations. The obtained results showed that fibre optic sensors are much less influenced by temperature change with respect to vibrating wires. DEWEY : 624 ISSN : 1964-8189 En ligne : http://ejece.revuesonline.com/resnum.jsp [article] Monitoring of a SFRC retaining structure during placement [texte imprimé] / Marco Scaioni, Auteur ; Mario Alba, Auteur ; Fabio Roncoroni, Auteur . - 2011 . - pp. 467-493. Génie Civil Langues : Anglais (eng) in European journal of environmental and civil engineering > Vol. 14 N° 4 (Avril 2010) . - pp. 467-493 Mots-clés : Monitoring  Engineering  geodesy  Retaining  structures  Risk  mitigation  Fibre  optic  sensor  Vibrating  wires Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : This paper deals with a solution for monitoring rigid 3-D displacements and deformations of 4 steel fibre RC innovative retaining structures designed for stabilizing unstable slopes. In particular, here the complete monitoring system is described, whilst results achieved during the placement of every structure are given. It includes the periodic use of a robotic total station to perform geodetic measurements during both placement and service stages, with different acquisition rates. The application of standard techniques of Engineering Geodesy resulted in over-estimating the precision of measurements, then an improved method to carry out this task was defined and applied. The monitoring system is completed by local strain sensors (load cells, vibrating wires and fibre optic sensors) which were tested in order to define a suitable configuration for assessing deformations. The obtained results showed that fibre optic sensors are much less influenced by temperature change with respect to vibrating wires. DEWEY : 624 ISSN : 1964-8189 En ligne : http://ejece.revuesonline.com/resnum.jsp