Method for artificially provoking an avalanche and device...

F - Mech Eng,Light,Heat,Weapons – 42 – D

Patent

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F42D 3/00 (2006.01)

Patent

CA 2310113

The invention concerns a method for artificially provoking an avalanche, consisting in a first step of filling a flexible envelope (2) with an explosive fluid (3) and a second step for triggering off an explosion of said fluid inside each envelope (2), each envelope (2) being destroyed by the exploding fluid. The destruction of the envelope brings about the propagation of a spherical air wave of excess pressure which will affect an optimal surface of the snow cover to be evacuated and will shake said surface and provoke an avalanche. The invention also concerns a device for implementing said method, comprising at least one envelope (2) for containing the explosive fluid, means for filling each envelope with said fluid, and means (4) for causing said fluid to explode inside each envelope.

L'invention se rapporte à un procédé de déclenchement artificiel d'une avalanche. Le procédé de l'invention comprend une étape de remplissage d'au moins une enveloppe souple (2) avec un fluide explosif (3) et une dexième étape de déclenchement d'une explosion dudit fluide à l'intérieur de chaque enveloppe, chaque enveloppe (2) étant détruite par l'explosion du fluide. La destruction de l'enveloppe permet la propagation d'une onde aérienne sphérique de surpression qui va intéresser une surface optimale du manteau neigeux à évacuer et va ébranler ladite surface et déclencher une avalanche. L'invention se rapporte également à un dispositif pour la mise en oeuvre de ce procédé, ledit dispositif comprenant su moins une enveloppe (2) destinée à contenir le fluide explosif, des moyens de remplissage de chaque enveloppe par ce fluide, et des moyens (4) pour déclencher l'explosion de ce fluide à l'intérieur de chaque enveloppe.

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