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New blasting method was applied in canal excavation in Sweden; 56 tons of dynamite in 4750 boreholes broke up 36,000 cu yd of rock and lifted 90,000 cu yd of overburden; in one-thousandth of second, current applied through 300 mi of connecting wire started delay elements burning in 12,500 blasting caps. (see also World Construction v 12 n 11 Nov 1959 p 37-41)
New blasting method was applied in canal excavation in Sweden; 56 tons of dynamite in 4750 boreholes broke up 36,000 cu yd of rock and lifted 90,000 cu yd of overburden; in one-thousandth of second, current applied through 300 mi of connecting wire started delay elements burning in 12,500 blasting caps. (see also World Construction v 12 n 11 Nov 1959 p 37-41)
Blasting without removing overburden
Civ Eng (NY)
Brannfors, S. (author)
1959
2 pages
Article (Journal)
English
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