Blasting method

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

Patent

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Details

F42D 3/06 (2006.01) F42D 1/00 (2006.01)

Patent

CA 2265629

The present invention relates to a blasting method which comprises conducting a delay blast at a particular location; predicting time series data of a waveform of ground vibration or noise at a remote location to be generated by a hypothetical single- hole blast at the particular location using at least one of previous time series data of a waveform of ground vibration or noise generated by said delay blast and actually monitored at the remote location, and the corresponding previous actually applied initiation time series of said delay blast; computing a delay blasting initiation time series for a delay blasting, which provides a waveform of ground vibration or noise satisfying specific conditions, based on the above-predicted time series data of a single-hole blast; and carrying out a subsequent delay blast according to the computed delay blasting initiation time series.

Cette invention se rapporte à un procédé d'excavation par explosion, qui consiste à produire une explosion à retard en un endroit particulier, en utilisant une série chronologique de vibrations ou d'ondes sonores générées à ce moment, et une série chronologique de début d'explosion à retard pour l'explosion à retard en question, à prévoir la série chronologique des vibrations ou des ondes sonores d'une explosion unique à cet endroit, à calculer la série chronologique du début de l'explosion à retard, qui produit des formes d'ondes pour les vibrations ou les ondes sonores de l'explosion à retard, en satisfaisant à certaines exigences spéciales, sur la base des données prévues de l'explosion unique obtenues à l'étape précédente, et à produire l'explosion à retard ultérieure dans la série chronologique calculée du début de l'explosion à retard.

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