A bench blast has the following drill hole parameters, diameter 200mm, bench height 10m, stemming length 2m, sub drill 1.6 m, hole is vertical. If an explosive with a density of 0.8 g/cc is employed the charge mass contained in a single blast hole is:
A bench blast has the following drill hole parameters, diameter 200mm, bench height 10m, stemming length 2m, sub drill 1.6 m, hole is vertical. If an explosive with a density of 0.8 g/cc is employed the charge mass contained in a single blast hole is:
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Transcribed Image Text:A bench blast has the following drill hole
parameters, diameter 200mm, bench
height 10m, stemming length 2m, sub drill
1.6 m, hole is vertical. If an explosive with a
density of 0.8 g/cc is employed the charge
mass contained in a single blast hole is:
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