engleski

Allowed quantity of explosive charge depending on the distance from the blast

This paper analyses results of trial, construction and quarry blasting, carried out in sediment rock deposits, mainly limestone and dolomite. Based on results of seismics measurements and engineering geological observations in sedimentary formation, an empirical relationship was established between ground vibration and geological strenght index (GSI). The charge weight of explosive that may be detonated per delay for any given distance of nearby structures from the blast is approximately determined by using the concept of the scaled distance (SD) along with the DIN 4150 standard.

blasting ; ground vibration ; scaled distance ; allowed quantity of explosive charge per delay

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