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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 Civ Eng (NY) v 29 n 11 Nov 1959 p 44-5)
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 Civ Eng (NY) v 29 n 11 Nov 1959 p 44-5)
Blasting without removing overburden
World Construction
Brannfors, S. (author)
World Construction ; 12
1959
5 pages
Article (Journal)
English
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