DISPOSITIF, SYSTEME ET PROCEDE DE DETECTION ET DE LOCALISATION DE DYSFONCTIONNEMENT DANS UN OUVRAGE HYDRAULIQUE, AINSI QU'UN OUVRAGE HYDRAULIQUE EQUIPE DE CE DISPOSITIF

• Main Authors: HENAULT JEAN MARIE, VOET MARC, DALY FABRICE, VLEKKEN JOHAN, ROYET PAUL, ARTIERES OLIVIER, BERNARD ALAIN, GUIDOUX CYRIL, BLAIRON SYLVAIN, VERCOUTERE GAUTHIER, FAURE YVES HENRI, FRY JEAN JACQUES
• Format: Patent
• Language: French
• Published: 18.01.2008
• Subjects: BLASTING; EMBANKMENTS; EXCAVATIONS; FIXED CONSTRUCTIONS; FOUNDATIONS; HEATING; HYDRAULIC ENGINEERING; LIGHTING; MEASURING; MECHANICAL ENGINEERING; PHYSICS; PIPE-LINE SYSTEMS; PIPE-LINES; SOIL SHIFTING; STORING OF DISTRIBUTING GASES OR LIQUIDS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR; UNDERGROUND OR UNDERWATER STRUCTURES; WEAPONS

L'invention concerne un dispositif (10) de détection et de localisation de fuite d'un fluide dans un ouvrage hydraulique, caractérisé en ce qu'il comporte un géotextile (12) pourvu d'au moins une fibre optique (14, 141,142) en contact avec ledit géotextile (12) et apte à transmettre un signal modifié lorsque la température varie.Application à la détection et à la localisation de fuite dans des ouvrages hydrauliques. The invention relates to a device (10) for detecting and locating fluid leakage from a hydraulic work, the device being characterized in that it comprises a geotextile fabric (12) made of yarns or fibers and provided with: at least one first optical cable (14) in contact with said geotextile (12) and formed by a protective tube within which at least one multimode optical fiber (141) is placed, said multimode optical fiber (141) being suitable for detecting a temperature variation and transmitting a signal that is modified when temperature varies and at least one second optical cable formed by a sheath receiving tightly at least one monomode optical fiber (142) suitable for detecting a deformation of the geotextile (12) and for transmitting a signal that is modified when the deformation is detected in that said second optical cable being bonded to the geotextile (12). The invention is applicable to detecting and locating leakage from hydraulic works.