Method and device for monitoring underground installations

G - Physics – 08 – B

Patent

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Details

G08B 17/10 (2006.01)

Patent

CA 2438570

The invention relates to a method and device for monitoring underground installations, which are flown through, such as tunnels, passages, canals or the like, by detecting and evaluating, in an at least section-by-section manner, changing physical and/or chemical properties along the entire length of the installations to be monitored, whereby a signal is released once a permissible quantity is exceeded. The aim of the invention is to provide a method for monitoring underground installations that enables a high degree of reliability with an economically justifiable cost. In particular, a quick and locally precise localization should be made possible. Simple and tough detectors can be used in the device required for implementing this method. According to the invention, the physical and/or chemical properties in each section are detected and evaluated over the clearance profile of the underground installation in manner that is transversal to the flow (7) of the air. To this end, the sensors and/or intake nozzles (4, 8) in each section are arranged over the clearance profile of the underground installation in a plane that is transversal to the flow (7) of the air.

L'invention concerne un procédé et un dispositif permettant de surveiller des installations souterraines soumises à des écoulements, telles que des tunnels, des passages, des canaux ou similaires, par détection et évaluation, au moins par sections, sur toute la longueur des installations à surveiller, de propriétés physiques et/ou chimiques variables, un signal étant déclenché en cas de dépassement d'une valeur admissible. L'invention vise à mettre au point un procédé permettant de surveiller des installations souterraines, qui permette de parvenir à une haute fiabilité, avec une complexité technique acceptable sur le plan économique. l'invention vise notamment à permettre d'effectuer une localisation rapide et localement précise. Des détecteurs simples et solides doivent pouvoir être utilisés dans le dispositif requis pour mettre ledit procédé en oeuvre. Il est prévu selon l'invention de détecter et d'évaluer les propriétés physiques et/ou chimiques dans chaque section transversalement à l'écoulement (7) de l'air sur l'ensemble du profil d'espace libre de l'installation souterraine. A cet effet, les détecteurs et/ou les buses d'aspiration (4, 8) sont disposées dans chaque section dans un plan transversal à l'écoulement (7) de l'air sur l'ensemble du profil d'espace libre de l'installation souterraine.

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